CN103066679A

Movatterモバイル変換

Info

Publication number: CN103066679A
Application number: CN2013100357156A
Authority: CN
Inventors: 詹跃东; 李莉
Original assignee: Kunming University of Science and Technology
Current assignee: Kunming University of Science and Technology
Priority date: 2013-01-30
Filing date: 2013-01-30
Publication date: 2013-04-24
Anticipated expiration: 2033-01-30
Also published as: CN103066679B

Abstract

Translated fromChinese

本发明涉及一种通用型通信基站太阳能风能集中供电系统及其控制方法，属于新能源发电技术和节能技术领域。通信基站新能源集中供电主回路和通信基站监控器实施对原通信基站交直流供电系统提供新能源供电。本发明采用计算机控制技术和人工智能技术组成的嵌入式计算机通信基站监控器，实现的智能监测与控制。设计的太阳能MPPT控制器和风能控制器能实时侦测太阳能板和风能发动机的发电电压，并追踪最高电压值，使系统达到最高的效率。设计的逆变器基于DSP的全数字控制技术、高频SPWM技术和先进的IGBT模块，使系统效率更高。

The invention relates to a general-purpose communication base station solar wind energy centralized power supply system and a control method thereof, belonging to the fields of new energy power generation technology and energy saving technology. The main circuit of the new energy centralized power supply of the communication base station and the monitor of the communication base station are implemented to provide new energy power supply for the AC and DC power supply system of the original communication base station. The invention adopts an embedded computer communication base station monitor composed of computer control technology and artificial intelligence technology to realize intelligent monitoring and control. The designed solar MPPT controller and wind energy controller can detect the power generation voltage of solar panels and wind energy generators in real time, and track the highest voltage value, so that the system can achieve the highest efficiency. The designed inverter is based on DSP full digital control technology, high frequency SPWM technology and advanced IGBT module, which makes the system more efficient.

Description

A kind of universal communication base station solar wind-energy central power supply system and control method thereof

Technical field

The present invention relates to a kind of universal communication base station solar wind-energy central power supply system and control method thereof, belong to generation of electricity by new energy technology and field of energy-saving technology.

Background technology

The base station is the public mobile communication base station, is a kind of form at Radio Station station, refers in certain area of radio coverage, and by mobile switching center, and the radio station is believed in the transceiving that the information of carrying out between the mobile telephone terminal is transmitted.The construction of mobile communication base station is the pith of China mobile communication carrier investment, and the construction of mobile communication base station generally all is to carry out around coverage rate, speech quality, returns of investment, construction difficulty or ease, the key element such as easy to maintenance.

Present energy-saving and emission-reduction new energy systems technology scheme to communication base station supplied by AC/DC electricity System Implementation, mainly replenish the new forms of energy electric energy take wind-powered engine as former electric power system, the direct voltage of controller of fan output directly accesses, and with communication base station supplied by AC/DC electricity system in rectifier output dc bus place and connect, still take the utility grid power supply as main, do not play the purpose of utilizing new forms of energy fully.On the other hand, if when wind-powered engine is powered to communication equipment, again to charge in batteries, need to increase the power of wind-powered engine, cause cost of investment higher, utilance is lower.In addition, this technical scheme need to be carried out the transformation of part connection line to existing communication base station supplied by AC/DC electricity system.

For reducing solar energy or wind energy generation of electricity by new energy cost, take into full account the characteristics such as the zones of different of communication base station electric power system and capacity, do not need simultaneously existing communication base station supplied by AC/DC electricity system is carried out the transformation of part connection line, and in the most direct mode solar energy or wind energy new energy are introduced communication base station, its location is very clear and definite, be exactly that the original civil power supplied by AC/DC electricity of communication base station system realizes in the new energy mode as main, the utility grid supply power mode is auxiliary principle, plays the real new forms of energy that utilize and realizes the effect of energy-saving and emission-reduction.According to the demand of communication base station, by using the selection of solar energy and wind energy new energy mode, reduce the base station to the consumption of conventional energy resource, and reduce carbon emission and dusty gas discharging because using conventional energy resource to produce, take full advantage of new forms of energy.

Therefore, designing a kind of universal communication base station solar wind-energy central power supply system, be fit to different demands and the capacity of former communication base station supplied by AC/DC electricity system, is the common expectation of industry.

Summary of the invention

For the problems referred to above, the invention provides a kind of universal communication base station solar wind-energy central power supply system and control method thereof, make communication base station supplied by AC/DC electricity system can take full advantage of new forms of energy, and has a higher fail safe, simultaneously, equipment is simple, has energy-saving and emission-reduction, cost is low, efficient is high, versatility, the characteristics such as easy of integration.

The technical solution used in the present invention: electric power system mainly is comprised of communication base station new forms of energy centrally connected power supply major loop 100, communication basestation monitoring device 200 and former communication base station supplied by AC/DC electricity system 300; Communication base station new forms of energy centrally connected power supply major loop 100 comprisessolar cell 101, solarenergy MPPT controller 102,inverter 103, change overswitch 104,outer storage battery 105, wind-poweredengine 106, controller offan 107, utility grid 108.Communication basestation monitoring device 200 comprisescontrol circuit 201,sample circuit 202,drive circuit 203, RS-485port 204, contravariantervoltage testing circuit 205, utility gridvoltage detecting circuit 206, supply voltage switch testing circuit 207.Former communication base station supplied by AC/DC electricity system 300 is by A.C.distribution box 301, SwitchingPower Supply 302,communication equipment 303, and interior storage battery 305,uninterrupted power supply 306, air-conditioning 307,illumination 308,socket 309,mobile diesel engine 310 and Surge Protector 311 form.Communication base station new forms of energy centrally connected power supply major loop 100 and communication basestation monitoring device 200 implemented to provide new energy to former communication base station supplied by AC/DCelectricity system 300.

Described universal communication base station new forms of energy central power supply system, system adopts the output end signal of solar energy centralized power supply systemsolar cell 101 to be connected with the input end signal of solarenergy MPPT controller 102, solarenergy MPPT controller 102 is used for the output voltage of solar cell is carried out the rear output dc voltage of MPPT maximum power point tracking control, externallystorage battery 105 charges on the one hand, provides direct voltage forinverter 103 afterwards withouter storage battery 105 parallel connections on the other hand;

Described universal communication base station new forms of energy central power supply system, system adopts the wind energy centralized power supply system, the output end signal of wind-poweredengine 106 is connected with the input end signal of controller offan 107, controller offan 107 is used for the output voltage of wind-poweredengine 106 is controlled rear output dc voltage, externallystorage battery 105 charges on the one hand, provides direct voltage forinverter 103 afterwards with outer storage battery 105,102 parallel connections of solar energy MPPT controller on the other hand.

The output end signal of the input end signal ofouter storage battery 105 and solarenergy MPPT controller 102 and controller offan 107, and the input end signal ofinverter 103 connects, whensolar cell 101 or wind-poweredengine 106 can not provide the power supply of the normal operation of the system of keeping,outer storage battery 105 provided power supply forinverter 103; The input end signal ofinverter 103 is connected with solarenergy MPPT controller 102, controller offan 107 and the output end signal ofouter storage battery 105, and the direct voltage that they are provided is converted to alternating voltage; The input end signal of change overswitch 104 withinverter 103,utility grid 108 and the output end signal of thedrive circuit 203 during the communication base station monitoring device is connected be connected, control command according to communication basestation monitoring device 200,select inverter 103 orutility grid 108 to provide power supply for communication base station supplied by AC/DC electricity system 300, the output end signal by change overswitch 104 is connected with the input end signal of theA.C. distribution box 301 of communication base station supplied by AC/DC electricity system 300.

The solarenergy MPPT controller 102 of communication base station new forms of energy centrally connected power supply major loop 100 and solarenergy MPPT controller 102 and the controller offan 107 of controller offan 107 for having MPPT maximum power point tracking control function.

Communication basestation monitoring device 200 in the described universal communication base station new forms of energy central power supply system, contravariantervoltage testing circuit 205 and the utility gridvoltage detecting circuit 206 of the input end signal of itssample circuit 202 and communication base station new forms of energy centrally connected power supply major loop 100, and the output end signal of the supply voltageswitch testing circuit 207 of former communication base station supplied by AC/DC electricity system 300 connects, and the output end signal ofsample circuit 202 is connected with the input end signal ofcontrol circuit 201; Output end signal withcontrol circuit 201 of separate CPU control function is connected with the input end signal ofdrive circuit 203, the input end signal ofcontrol circuit 201 andsample circuit 202 are connected the input end signal of RS-485port 204 and are connected with host computer, whether the parameter according tosample circuit 202 normally controls judgement, and the output control command is to drivecircuit 203; The input end signal of the change overswitch 104 in the output end signal ofdrive circuit 203 and the major loop 100 is connected, and the power by increasing control signal also outputs to change overswitch 104.

The control method of communication basestation monitoring device 200 may further comprise the steps:

A)sample circuit 202 is by theinverter 103 in contravariantervoltage testing circuit 205, utility gridvoltage detecting circuit 206, supply voltageswitch testing circuit 207, the sampling major loop 100 and the alternating voltage ofutility grid 108, and the direct voltage ofSwitching Power Supply 302 in the communication base station supplied by AC/DC electricity system 300;

B)control circuit 201 judges whether the alternating voltage of the voltage of direct voltage,inverter 103 ofSwitching Power Supply 302 andutility grid 108 is normal;

When the alternating voltage of the voltage of the direct voltage ofSwitching Power Supply 302, inverter 103 andutility grid 108 normal, then the output control command ofcontrol loop 201 is to drivecircuit 203, by the change overswitch 104 in thedrive circuit 203 driving major loops 100, allow the out-put supply ofinverter 105 provide power supply by change overswitch 104 to communication base station supplied by AC/DC electricity system 300, and return step a);

Undesired when the alternating voltage of the voltage of the direct voltage ofSwitching Power Supply 302, inverter 103 andutility grid 108, then enter step c);

C)control loop 201 judges whether the output voltage of the direct voltage ofSwitching Power Supply 302 andinverter 103 is normal;

When the output voltage of the direct voltage ofSwitching Power Supply 302 and inverter 103 normal, and host computer is without " quick charge " instruction, thencontrol loop 201 output control commands are to drivecircuit 203, by the change overswitch 104 in thedrive circuit 203 control major loops 100, connect the out-put supply ofinverter 105, disconnect the out-put supply ofutility grid 108, provide power supply byinverter 105 to communication base station supplied by AC/DC electricity system 300, and return step a);

Undesired when the output voltage of the direct voltage of SwitchingPower Supply 302 and inverter 103, then enter step d);

D)control loop 201 judges whether the output voltage of the direct voltage ofSwitching Power Supply 302 andutility grid 108 is normal;

If the output voltage of the direct voltage ofSwitching Power Supply 302 andutility grid 108 is normal, and host computer has " quick charge " instruction, thencontrol loop 201 output control commands are to drivecircuit 203, by the change overswitch 104 in thedrive circuit 203 control major loops 100, disconnect the out-put supply ofinverter 105, connect the out-put supply ofutility grid 108, provide AC power byutility grid 108 to communication base station supplied by AC/DC electricity system 300, and return step a);

Undesired when the output voltage of the direct voltage ofSwitching Power Supply 302 andutility grid 108, then enter step e);

E)control loop 201 judges whether the direct voltage of Switching Power Supply is normal;

When the direct voltage of Switching Power Supply normal, and host computer is without " quick charge " instruction, the alternating voltage of inverter is undesired, and the utility grid alternating voltage is normal, thencontrol loop 201 output control commands are to drivecircuit 203, by the change overswitch 104 in the drive circuit control major loop 100, disconnect the out-put supply ofinverter 105, connect the out-put supply ofutility grid 108, provide AC power byutility grid 108 to communication base station supplied by AC/DC electricity system 300, send fault message to host computer, and return step a);

Undesired when the direct voltage of Switching Power Supply, then enter step f);

F) if the direct voltage of Switching Power Supply is undesired, thencontrol loop 201 output control commands are to drivecircuit 203, by the change overswitch 104 in the drive circuit control major loop 100, disconnect the out-put supply ofinverter 105 andutility grid 108, stop to provide AC power to communication base station supplied by AC/DC electricity system 300, send fault message to host computer, and return step a).

Describedsolar cell 101, solarenergy MPPT controller 102,inverter 103, change overswitch 104,outer storage battery 105, wind-poweredengine 106, controller offan 107,utility grid 108,control circuit 201,sample circuit 202,drive circuit 203, RS-485port 204, contravariantervoltage testing circuit 205, supply voltageswitch testing circuit 206 and utility gridvoltage detecting circuit 207 etc., exceptsolar cell 101 and wind-poweredengine 106 all were public in the market conventional equipment, all the other were product and the equipment of my research and development.

Beneficial effect of the present invention: the embedded computer communication base station monitoring device that this patent adopts Computer Control Technology and artificial intelligence technology to form, the intellectual monitoring of realization and control.The generating voltage of the solar energy MPPT controller of design and wind energy controller energy detecting real-time solar panels and wind-powered engine, and follow the trail of maximum voltage value, make system reach the highest efficient.The inverter full digital control based on DSP technology of design, High ireguency SPWM technology and advanced IGBT module make system effectiveness higher.

A) realize the rational management that solar energy or wind energy new energy and utility grid are powered, make the maximization of generation of electricity by new energy amount and energy-saving effect maximization.

B) realize efficient system reasonable disposition and integrated, guaranteeing and satisfying under the demand of base station communication apparatus power consumption, save the capacity of solar panel or blower fan.

C) intellectual monitoring between the power supply of realization new energy and utility grid and automatically control.

D) optional position of realization communication base station and the low cost under the layout, high efficiency, continuity, fail safe and universal.

Simultaneously, this patent has been determined control strategy and the control algolithm of communication base station monitoring device, and establishment and developed the software and hardware of corresponding control and communication system, can be system take full advantage of new forms of energy, versatility grow, the system integration easily, cost, efficient be higher.

Description of drawings

Fig. 1 is circuit structure schematic diagram of the present invention.

Fig. 2 is control flow chart of the present invention.

Among the figure: 100-communication base station new forms of energy central power supply system major loop; the 101-solar cell; 102-solar energy MPPT controller; the 103-inverter; the 104-change over switch; the outer storage battery of 105-; the 106-wind-powered engine; the 107-controller of fan; the 108-utility grid; 200-communication base station monitoring device; the 201-control circuit; the 202-sample circuit; the 203-drive circuit; 204-port RS-485; 205-contravarianter voltage testing circuit; 206-utility grid voltage detecting circuit; 207-supply voltage switch testing circuit; 300-communication base station supplied by AC/DC electricity system; the 301-A.C. distribution box; the 302-Switching Power Supply; storage battery in the 303-communication equipment, 305-; the 306-uninterrupted power supply; the 307-air-conditioning; the 308-illumination; the 309-socket; the 310-mobile diesel engine; the 311-Surge Protector.

Embodiment

Below in conjunction with drawings and Examples this patent is described further.

As shown in Figure 1, electric power system mainly is comprised of communication base station new forms of energy centrally connected power supply major loop 100, communication basestation monitoring device 200 and former communication base station supplied by AC/DC electricity system 300; Communication base station new forms of energy centrally connected power supply major loop 100 comprisessolar cell 101, solarenergy MPPT controller 102,inverter 103, change overswitch 104,outer storage battery 105, wind-poweredengine 106, controller offan 107, utility grid 108.Communication basestation monitoring device 200 comprisescontrol circuit 201,sample circuit 202,drive circuit 203, RS-485port 204, contravariantervoltage testing circuit 205, utility gridvoltage detecting circuit 206, supply voltage switch testing circuit 207.Former communication base station supplied by AC/DC electricity system 300 is by A.C.distribution box 301,Switching Power Supply 302,communication equipment 303, and interior storage battery 305,uninterrupted power supply 306, air-conditioning 307,illumination 308,socket 309,mobile diesel engine 310 and Surge Protector 311 form.Communication base station new forms of energy centrally connected power supply major loop 100 and communication basestation monitoring device 200 implemented to provide new energy to former communication base station supplied by AC/DCelectricity system 300.

The output end signal of the input end signal ofouter storage battery 105 and solarenergy MPPT controller 102 and controller offan 107, and the input end signal ofinverter 103 connects, whensolar cell 101 or wind-poweredengine 106 can not provide the power supply of the normal operation of the system of keeping,outer storage battery 105 provided power supply forinverter 103;

The input end signal ofinverter 103 is connected with solarenergy MPPT controller 102, controller offan 107 and the output end signal ofouter storage battery 105, and the direct voltage that they are provided is converted to alternating voltage; The input end signal of change overswitch 104 withinverter 103,utility grid 108 and the output end signal of thedrive circuit 203 during the communication base station monitoring device is connected be connected, control command according to communication basestation monitoring device 200,select inverter 103 orutility grid 108 to provide power supply for communication base station supplied by AC/DC electricity system 300, the output end signal by change overswitch 104 is connected with the input end signal of theA.C. distribution box 301 of communication base station supplied by AC/DCelectricity system 300.

Embodiment 1

As shown in Figure 2: the control method of communication basestation monitoring device 200 may further comprise the steps:

B)control circuit 201 judges whether the alternating voltage of the voltage of direct voltage,inverter 103 ofSwitching Power Supply 302 andutility grid 108 is normal; Undesired when the alternating voltage of the voltage of the direct voltage ofSwitching Power Supply 302, inverter 103 andutility grid 108, then enter step c);

D)control loop 201 judges whether the output voltage of the direct voltage ofSwitching Power Supply 302 andutility grid 108 is normal; Undesired when the output voltage of the direct voltage ofSwitching Power Supply 302 andutility grid 108, then enter step e);

E)control loop 201 judges whether the direct voltage of Switching Power Supply is normal; Undesired when the direct voltage of Switching Power Supply, then enter step f);

Embodiment 2

B)control circuit 201 judges whether the alternating voltage of the voltage of direct voltage,inverter 103 of SwitchingPower Supply 302 andutility grid 108 is normal;

When the alternating voltage of the voltage of the direct voltage of SwitchingPower Supply 302,inverter 103 andutility grid 108 normal, then the output control command ofcontrol loop 201 is to drivecircuit 203, by the change overswitch 104 in thedrive circuit 203 driving major loops 100, allow the out-put supply ofinverter 105 provide power supply by change overswitch 104 to communication base station supplied by AC/DC electricity system 300, and return step a);

Embodiment 3

A)sample circuit 202 is by theinverter 103 in contravariantervoltage testing circuit 205, utility gridvoltage detecting circuit 206, supply voltageswitch testing circuit 207, the sampling major loop 100 and the alternating voltage ofutility grid 108, and the direct voltage of SwitchingPower Supply 302 in the communication base station supplied by AC/DC electricity system 300;

B)control circuit 201 judges whether the alternating voltage of the voltage of direct voltage,inverter 103 of SwitchingPower Supply 302 andutility grid 108 is normal; Undesired when the alternating voltage of the voltage of the direct voltage of SwitchingPower Supply 302,inverter 103 andutility grid 108, then enter step c);

C)control loop 201 judges whether the output voltage of the direct voltage of SwitchingPower Supply 302 andinverter 103 is normal;

When the output voltage of the direct voltage of SwitchingPower Supply 302 andinverter 103 normal, and host computer is without " quick charge " instruction, then controlloop 201 output control commands are to drivecircuit 203, by the change overswitch 104 in thedrive circuit 203 control major loops 100, connect the out-put supply ofinverter 105, disconnect the out-put supply ofutility grid 108, provide power supply byinverter 105 to communication base station supplied by AC/DC electricity system 300, and return step a);

Embodiment 4

Undesired when the output voltage of the direct voltage of SwitchingPower Supply 302 andinverter 103, then enter step d);

D)control loop 201 judges whether the output voltage of the direct voltage of SwitchingPower Supply 302 andutility grid 108 is normal; If the output voltage of the direct voltage of SwitchingPower Supply 302 andutility grid 108 is normal, and host computer has " quick charge " instruction, then controlloop 201 output control commands are to drivecircuit 203, by the change overswitch 104 in thedrive circuit 203 control major loops 100, disconnect the out-put supply ofinverter 105, connect the out-put supply ofutility grid 108, provide AC power byutility grid 108 to communication base station supplied by AC/DC electricity system 300, and return step a);

Embodiment 5

C)control loop 201 judges whether the output voltage of the direct voltage of SwitchingPower Supply 302 andinverter 103 is normal; Undesired when the output voltage of the direct voltage of SwitchingPower Supply 302 andinverter 103, then enter step d);

D)control loop 201 judges whether the output voltage of the direct voltage of SwitchingPower Supply 302 andutility grid 108 is normal; Undesired when the output voltage of the direct voltage of SwitchingPower Supply 302 andutility grid 108, then enter step e);

E)control loop 201 judges whether the direct voltage of Switching Power Supply is normal; When the direct voltage of Switching Power Supply normal, and host computer is without " quick charge " instruction, the alternating voltage of inverter is undesired, and the utility grid alternating voltage is normal, then controlloop 201 output control commands are to drivecircuit 203, by the change overswitch 104 in the drive circuit control major loop 100, disconnect the out-put supply ofinverter 105, connect the out-put supply ofutility grid 108, provide AC power byutility grid 108 to communication base station supplied by AC/DC electricity system 300, send fault message to host computer, and return step a);

This patent describes by specific implementation process, in the situation that do not break away from this patent scope, can also carry out various conversion and be equal to replacement this patent, therefore, this patent is not limited to disclosed specific implementation process, and should comprise the whole embodiments that fall in this patent claim scope.