Utility model content
The utility model aim is to provide a kind of DC power supply burn-in test process, power cycles using, effectively reduceEnergy consumption, the DC power supply aging testing system and its method for reducing cost.
To achieve these goals, a kind of DC power supply aging testing system provided by the utility model includes fine tuning subsystemSystem, charge and discharge electronic system and monitoring and controlling module；The fine tuning subsystem includes the external power supply being electrically connected successively, charging listMember, energy-storage module, external load, the fine tuning subsystem are used to finely tune the capacity of energy-storage module；The charge and discharge electronic system includesEnergy-storage module, be electrically connected with the energy-storage module and can mutual charge and discharge DC power supply, which is used for directlyPower source charges are flowed, while as the electric energy of depletion load storage DC power supply release；Monitoring and controlling module respectively with the chargingUnit, energy-storage module, external load and DC power supply are electrically connected, and the monitoring and controlling module is used to monitor charhing unit, storageIt can module, the electrical characteristic of external load and DC power supply and the test process for controlling and coordinating system.
As an improvement of the above technical solution, it further includes and is electrically connected at filling between the energy-storage module and DC power supplyElectric module, and the charging module is electrically connected with monitoring modular, the energy-storage module adjusts voltage by charging module, realizesIt is charged with constant current or constant voltage mode to DC power supply.
Further, the discharge module being electrically connected between the DC power supply and energy-storage module is further included, and describedDischarge module is electrically connected with monitoring and controlling module, and the DC power supply adjusts voltage by discharge module, realizes with constant current, perseveranceResistance or invariable power mode are discharged to energy-storage module.
Further, the monitoring and controlling module further includes control unit and switch, the charhing unit of electric connection, energy storageSwitch is respectively equipped between module and external load, between DC power supply and discharge module and and/or charging module and direct currentSwitch is equipped between source, monitoring and controlling module is connected or disconnected the control that switch realizes charge and discharge by control unit.
Further, it is connected between the monitoring and controlling module and all parts or module by CAN bus.
Compared with prior art, the utility model DC power supply aging testing system passes through monitoring and controlling mould to the utility modelBlock monitoring electrical characteristics data is simultaneously controlled in the electric discharge of DC power supply burn-in test, and DC power supply is the power storage of release to storing upEnergy module, in DC power supply burn-in test charging process, energy-storage module gives direct-current power supply electric energy again；Finely tune subsystem simultaneouslySystem, which is realized, finely tunes the initial or process of energy-storage module.Entire power source aging test process power cycles are realized to use, and thenEffectively reduce energy consumption.The required precision of fine tuning subsystem is reduced energy saving while, DC power supply burn-in test is greatly reducedCost.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried outIt clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than wholeEmbodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without creative effortsAll other embodiments obtained shall fall within the protection scope of the present invention.
It is shown in Figure 1, a kind of DC power supply aging testing system provided by the utility model, including finely tuning subsystem,Charge and discharge electronic system and monitoring and controlling module；Fine tuning subsystem includes the external power supply 1 being electrically connected successively, charhing unit 2, storageIt can module 6, external load 4；Charge and discharge electronic system includes energy-storage module 6, is electrically connected with energy-storage module and can mutual charge and dischargeThe DC power supply 3 of electricity；Monitoring and controlling module 5 is electric with charhing unit 2, energy-storage module 6, external load 4 and DC power supply 3 respectivelyProperty connection.
Wherein, external power supply 1 is usually alternating current.Charhing unit 2 is that the alternating current of external power supply is switched to direct current, generallyThe voltage range for turning direct current is 12V-90V or 90V-600V, and is constant current or constant voltage mode charging；Charhing unit can be voltage stabilizingPower supply.External load 4 mainly has motor (electric energy is converted into mechanical energy energy consumption), resistance (electric energy is converted into thermal energy energy consumption) and electricitySon load (electric energy is converted into thermal energy energy consumption) is general to select electronic load as external load.The fine tuning subsystem passes through outsidePower supply and charhing unit slightly increase the capacity of energy-storage module, and the capacity of energy-storage module is slightly reduced by external load.
Energy-storage module 6 can be DC battery jar or direct-flow storage battery (electric energy and chemical energy mutually turn), be certainly not limited to thisTwo kinds, can be other energy storage devices or module.Energy-storage module is used to charge to DC power supply, while is stored as depletion loadThe electric energy of DC power supply release.
DC power supply 3 is used as test object, mainly there is two classes：One kind be multiple batteries be spliced battery pack (such asOften the battery series connection of section 3.7V reaches setting voltage), a kind of this kind of commonplace and trend；Another kind of is DC battery jar.
Monitoring and controlling module 5 is used to monitor the electrical characteristic of charhing unit, energy-storage module, external load and DC power supply simultaneouslyControl and the test process for coordinating system.
The test method of the DC power supply ageing system of the utility model is：
(1) parameter (such as capacity and cycle-index of DC power supply) of DC power supply aging testing system is set；
(2) the electrical spy of each component and module in the acquisition of monitoring and controlling module, monitoring DC power supply aging testing systemProperty data, and according to parameter and energy-storage module current capacities determine whether to carry out by finely tuning subsystem to energy-storage module initial micro-It adjusts；
(3) energy-storage module charges to DC power supply or direct current power discharge is to energy-storage module, and monitoring and controlling module, which acquires, fillsElectricity or discharge process in all parts, module electrical characteristics data, until reach stop condition (such as setting stagnation pressure reach oneDefinite value stops or monomer voltage reaches certain value stopping)；
(4) DC power supply enters standing process；
(5) when step (3) is DC power supply charging process, which is direct current power discharge to energy-storage module；Work as stepSuddenly when (3) are direct current power discharge processes, which charges for energy-storage module to DC power supply；The acquisition electric discharge of monitoring and controlling moduleOr the electrical characteristics data of all parts in charging process, module, until reaching stop condition, (such as setting stagnation pressure reaches certainValue stops or monomer voltage reaches certain value stopping)；
(6) cycle carries out above-mentioned steps (3) to (5), until reaching the loop parameter of setting.
For step (2), it is exemplified as：Set the total capacity Stotal=100 ampere-hours of energy-storage module, current capacitiesScurrent=80 ampere-hours, energy-storage module Capacity Margin Smargin=10 ampere-hours, DC power source capacity Sbattery=30 peacesWhen, the total capacity Stotal of DC power source capacity Sbattery and energy-storage module, current capacities Scurrent are compared meterIt calculates, obtains the initialization capacity Sinit=Stotal-Sbattery-Smargin=100-10-30=60 ampere-hours of energy-storage module,Compare and calculate Sinit and Scurrent：
Work as Sinit>During Scurrent, energy-storage module needs to discharge when initializing, and energy-storage module is discharged to Sinit；
As Sinit=Scurrent, energy-storage module does not need to be initialized；
Work as Sinit<During Scurrent, energy-storage module needs to charge when initializing, and energy-storage module charges to Sinit.
Specifically, monitoring and controlling module realizes the control to charge and discharge process by control unit and switch.Refer to Fig. 1 institutesShow, 1) monitoring and controlling module setup parameter；
2) monitoring and controlling module sends out charging instruction, the acquisition of monitoring and controlling module, monitoring DC power supply aging testing systemIn each component electrical characteristics data, and according to parameter and energy-storage module current capacities determine whether by finely tune subsystem toEnergy-storage module is initially finely tuned, such as above-mentioned when energy-storage module needs electric discharge, control switch closure switch S4, at the beginning of energy-storage moduleElectric discharge begin to external load, it is similary as above-mentioned when energy-storage module needs charging, control switch closure switch S3, external power supply andCharhing unit gives energy-storage module initial charge, when energy-storage module discharge or charge reach condition after control switch disconnect switch S4 orSwitch S3；If energy-storage module does not need to initially finely tune, it is directly entered next step；
3) control switch closure switch S1, energy-storage module charge to DC power supply；Or control switch is closed S2, direct currentSource discharges into energy-storage module；Simultaneously monitoring and controlling module acquisition charge or discharge during all parts, module electrical characteristicData, until after reaching stop condition, control switch disconnects switch S1 or S2；
4) DC power supply enters standing process；
5) control switch closure switch S2, direct current power discharge is to energy-storage module；Or control switch closure switch S1, storageEnergy module gives DC power supply to charge；Simultaneously monitoring and controlling module acquisition charge or discharge during all parts, module it is electricalPerformance data, until after reaching stop condition, control switch disconnects switch S2 or S1；
It is above-mentioned be monitoring and controlling module in charge and discharge process monitoring and control mode, certain monitoring and controlling module is simultaneouslyIt is not limited to, by control unit and switch control charge and discharge process, to realize by other control modes.
The utility model DC power supply aging testing system is by monitoring and controlling module monitors electrical characteristics data and controlsIn the electric discharge of DC power supply burn-in test, DC power supply is the power storage of release to energy-storage module, in DC power supply aging surveyDuring trial charging, energy-storage module gives direct-current power supply electric energy again；Subsystem is finely tuned simultaneously to realize to the initial of energy-storage moduleOr process fine tuning.Entire power source aging test process power cycles are realized to use, and then effectively reduce energy consumption.Energy-efficient sameWhen reduce the required precision of fine tuning subsystem, the cost of DC power supply burn-in test is greatly reduced.
On the basis of above-described embodiment, as shown in Figure 1, a kind of DC power supply aging testing system of the utility model also wrapsThe charging module 7 being electrically connected between energy-storage module 6 and DC power supply 3 is included, charging module 7 is electrical with monitoring and controlling module 5Connection, charging module are charged for external power supply with constant current or constant voltage mode to DC power supply, ensure energy storage by charging moduleModule charges according to constant current or constant voltage mode to DC power supply.
On the basis of above-described embodiment, as shown in Figure 1, a kind of DC power supply aging testing system of the utility model also wrapsThe discharge module 8 being electrically connected between DC power supply 3 and energy-storage module 6 is included, discharge module 8 is electrical with monitoring and controlling module 5Connection, discharge module are used for DC power supply under the monitoring and controlling of monitoring and controlling module in a manner of constant current, constant-resistance or invariable powerIt discharges to energy-storage module, specifically as shown in Figure 1, monitoring and controlling module is by control unit closure switch S2, DC power supply is putIt supplies electricity to energy-storage module or disconnecting S2 terminates direct current power discharge.Can test in this way DC power supply constant current, invariable power orDischarge characteristic curve under the conditions of constant-resistance.This is also the purpose of DC power supply burn-in test.
On the basis of above-described embodiment, connected between monitoring and controlling module 5 and all parts or module by CAN busConnect, wherein, monitor control system acquires the electrical characteristics data of DC power supply 3 and energy-storage module 6 by CAN bus, and to itsIts component or module send setup parameter or instruction.
Above disclosed is only the preferred embodiment of the utility model, certainly cannot be new to limit this practicality with thisThe interest field of type, therefore the equivalent variations made according to present utility model application the scope of the claims still belong to the utility model and are coveredRange.