Detailed Description
The embodiments of the present invention will be described in detail below with reference to the accompanying drawings in order to more clearly understand the objects, features and advantages of the present invention. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the present invention, but are merely intended to illustrate the spirit of the technical solution of the present invention.
In the following description, for the purposes of illustrating various inventive embodiments, certain specific details are set forth in order to provide a thorough understanding of the various inventive embodiments. One skilled in the relevant art will recognize, however, that the embodiments may be practiced without one or more of the specific details. In other instances, well-known devices, structures and techniques associated with this application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.
Throughout the specification and claims, the word "comprise" and variations thereof, such as "comprises" and "comprising," are to be understood as an open, inclusive meaning, i.e., as being interpreted to mean "including, but not limited to," unless the context requires otherwise.
Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
As used in the specification and the appended claims, the singular forms "a", "an", and "the" include plural referents unless the context clearly dictates otherwise. It should be noted that the term "or" is generally employed in its sense including "and/or" unless the context clearly dictates otherwise.
Fig. 1 shows a schematic structural diagram of an electrical load control system 1 according to the invention. As shown in fig. 1, the electrical load control system 1 includes a plurality of electrical load acquisition modules 10 (only one is schematically shown in fig. 1). Each power consumption collectingmodule 10 may be connected to onepower consumption device 60, and is configured to collect a plurality of types of power consumption data of the correspondingpower consumption device 60 every predetermined collecting period. For example, the predetermined collection period may be 1 minute, so that theelectricity collection module 10 collects electricity data of theelectricity consumption device 60 connected thereto every one minute.
The electrical load control system 1 further includes an electricalutilization control module 20, which includes a buffer (not shown in the figure) for buffering the electrical utilization data, also referred to as current electrical utilization data, of the correspondingelectrical equipment 60 collected by the plurality of electricalutilization collection modules 10 in the current collection period. For example, the powerconsumption control module 20 may be configured to write current power consumption data of thepower consumption devices 60 collected by the powerconsumption collection modules 10 into a redis cache based on the modbus protocol.
In addition, each time new power consumption data acquired by the powerconsumption acquisition module 10 is received, the powerconsumption control module 20 further transfers the current power consumption data in the buffer to a database (e.g., a hard disk) of themanagement server 30 connected to the powerconsumption control module 20. For example, the electricityconsumption control module 20 may execute a binning program once per minute, store the data in the buffer in the hard disk mysql database of themanagement server 30, and request themanagement server 30 for the data when requested by the management user, for example, through websocket. In this way, at any particular time, theelectricity control module 20 stores current electricity data of the current sampling period, and the database of themanagement server 30 stores electricity data collected by the plurality ofelectricity collection modules 10 in the collection period before the current collection period, which is also referred to as historical electricity data.
In practical operation, the management user of the power utilization enterprise may monitor the power utilization condition of each power utilization device, for example, the management user may visually check the power utilization condition of each power utilization device through theportable management terminal 40 as shown in the figure or through themanagement server 30. Here, the power consumption of each power consumption device may be represented by the power consumption data collected by each power consumption collection module as described above, or may be represented by the monitoring signal/digital parameter collected by themonitoring module 50 as described below, or may be represented by a combination of the two. Furthermore, the management user can request the electrical load control system 1 to perform load control as needed. In this case, the management user can issue a load control request to theutility control module 20 by operating themanagement terminal 40 or directly operating themanagement server 30, for example. The load control request may specify, for example, a target range (which electric devices) of the load control, such as specifying that a certain production line of a plurality of production lines is subjected to the load control, specifying that electric devices of a certain link of all the production lines are subjected to the load control, or specifying other electric devices that a user wants to control. The load control request may also specify a time range for load control, such as specifying how long in the future to perform load control, etc.
Upon receiving a load control request from a management user, the electricityconsumption control module 20 acquires corresponding historical electricity consumption data from the database of themanagement server 30 according to an instruction in the load control request, and acquires corresponding current electricity consumption data from the buffer of the electricityconsumption control module 20. The powerconsumption control module 20 may acquire current power consumption data and historical power consumption data of some or all of thepower consumption devices 60 according to the load control request. Here, it is assumed that the electricityconsumption control module 20 acquires the current electricity consumption data and the historical electricity consumption data of all of the plurality ofelectric devices 60. The powerusage control module 20 may combine the acquired historical power usage data and the current power usage data to generate actual power usage data for the plurality of powereddevices 60. The electricityconsumption control module 20 determines whether the actual electricity consumption data is greater than a safety load threshold preset by a management user.
In some embodiments, if it is determined that the actual power usage data is greater than the safety load threshold preset by the administrative user, thepower control module 20 may simulatively set the power usage data of at least one powereddevice 60 of the plurality of powereddevices 60 to zero (i.e., simulate turning off the powered device) to calculate the simulated power usage data of the plurality of powereddevices 60. Specifically, the powerconsumption control module 20 may count the simulated operating currents after unloading somepower consumption devices 60 by simulating unloading somepower consumption devices 60 from the current operating currents or count the simulated operating currents after loading somepower consumption devices 60 by loading somepower consumption devices 60 to the current operating currents.
Here, the powerconsumption control module 20 may sequentially turn off each of thepower consumers 60 in a simulation manner according to a rule (e.g., power consumption priority of each power consumer 60) preset by a user until the obtained simulated power consumption data is less than or equal to the safety load threshold. The identifier of the at least oneconsumer 60 that is switched off in an analog manner can now be known. The powerutility control module 20 may form a power utility load control scheme based on the obtained simulated power utility data and the identifier of the at least onepower consumer 60.
In one embodiment, the decision of the load control scheme is performed by themanagement server 30. In this case, the powerconsumption control module 20 may transmit the power load management scheme to themanagement server 30, and themanagement server 30 determines whether to shut down the at least one powereddevice 60 based on the power load management scheme. If it is determined to shut down the at least one powereddevice 60, themanagement server 30 transmits a load control command to the poweredcontrol module 20 to shut down the at least one powereddevice 60. Themanagement server 30 may include hardware devices and software devices such as a server, a workstation, and a switch, and themanagement server 30 may receive and display the load condition of theelectric equipment 60 from theelectric control module 20 in real time, and may transmit the load condition to themanagement terminal 40 in real time for display.
In another embodiment, the decision of the load control scheme is performed by themanagement terminal 40 connected to themanagement server 30 by wire or wirelessly. In this case, theelectricity control module 20 may transmit the electricity load management scheme to themanagement server 30, and themanagement server 30 forwards the electricity load management scheme to themanagement terminal 40. Themanagement terminal 40 determines whether to shut down the at least oneelectric device 60 based on the electric load control scheme, and transmits a load control command to themanagement server 30 if it is determined to shut down the at least oneelectric device 60. Themanagement server 30 forwards the load control command to the powerconsumption control module 20 to shut down the at least one powereddevice 60. Herein, themanagement terminal 40 may be a portable mobile terminal, and the management user may view the power consumption of eachpower consumption device 60 whenever and wherever necessary, and may receive a message transmitted by the system whenever and wherever possible, thereby providing higher operational flexibility. Further, although themanagement terminal 40 is shown as 1 in fig. 1, in other examples, the electrical load control system 1 may include a plurality ofmanagement terminals 40, eachmanagement terminal 40 being controlled by one management user.
In other embodiments, the powerconsumption control module 20 may apply different rules to simulate the power consumption data of differentpower consumption devices 60 of the plurality ofpower consumption devices 60 to 0 respectively to calculate a plurality of simulated power consumption data smaller than or equal to the safety load threshold, and form a plurality of power consumption load control schemes according to the plurality of simulated power consumption data and the identifiers of the corresponding turned-offpower consumption devices 60 respectively.
In this case, in an embodiment, the powerusage control module 20 may transmit all of the plurality of power load management schemes to themanagement server 30, and themanagement server 30 may select one power load control scheme from the plurality of power load control schemes based on an instruction of a management user and determine whether to shut down thepower device 60 corresponding to the selected power load scheme based on the selected power load control scheme. If it is determined to shut down theelectric devices 60 corresponding to the selected electric load scheme, themanagement server 30 transmits a load control command to theelectric control module 20 to shut down theelectric devices 60 corresponding to the selected electric load scheme.
In another embodiment, the powerutilization control module 20 may transmit all of the plurality of power utilization load management schemes to themanagement server 30, and themanagement server 30 transmits the plurality of power utilization load management schemes to themanagement terminal 40. Themanagement terminal 40 selects one electric load control scheme from the plurality of electric load control schemes based on an instruction of the management user, and determines whether to shut down theelectric devices 60 corresponding to the selected electric load scheme based on the selected electric load control scheme. If it is determined to shut down theelectric devices 60 corresponding to the selected electric load scenario, themanagement terminal 40 transmits a load control command to themanagement server 30. Themanagement server 30 forwards the load control command to the electricityusage control module 20 to shut down theelectricity usage device 60 corresponding to the selected electricity usage load scheme.
In some embodiments, the electrical load control system 1 may further include amonitoring module 50. Fig. 2 shows a schematic diagram of amonitoring module 50 of the electrical load control system 1 according to an embodiment of the invention. As shown in fig. 2, themonitoring module 50 includes a plurality of monitoring terminals 52 (only one shown in fig. 2 by way of example) and an intelligent gateway 54. Each monitoringterminal 52 is connected to a corresponding one of the plurality ofelectric devices 60, and is configured to obtain a plurality of monitoring signals of the corresponding electric device. The plurality of monitoring signals includes, for example, voltage, current, relay input, and the like. Themonitoring terminal 52 may also convert the plurality of monitoring signals into digital parameters, respectively, including, for example, three-phase voltage, three-phase current, power factor, frequency, power usage, and the like. For example, the monitoringterminal 52 may convert the obtained voltage sampled by the voltage transformer and the current sampled by the current transformer into digital parameters for calculation at the terminal, read out the calculated data through the serial interface, display various parameters according to the preset values, perform communication transmission through the infrared or RS485 interface, complete the monitoring of the operating parameters, and record and store various data.
The intelligent gateway 54 classifies the digital parameters of the plurality ofelectric devices 60 according to device types and data identification manners, and packages the classified digital parameters according to a predetermined communication protocol to transmit to the connectedmanagement server 30. For example, intelligent gateway 54 may classify the digital parameters of eachpowered device 60 according to the device type of thepowered device 60, such as gateway, channel, or power consumer, and the data identification of the obtained device data item.
In some embodiments,monitoring module 50 may also include afiber optic transceiver 56 that may transmit the digital parameters packaged by intelligent gateway 54 tomanagement server 30 over fiber.
As described above, both the powerconsumption collection module 10 and themonitoring terminal 52 may be configured to obtain power consumption data of thepowered device 60, and the powerconsumption control module 20 may further determine whether thepowered device 60 is safely powered by comparing the obtained data.
In the embodiment according to the present invention, the collection accuracy of the electricityconsumption collection module 10 is greater than that of themonitoring terminal 52. For example, the acquisition accuracy of themonitoring terminal 52 is 0.2 level, while the acquisition accuracy of the powerconsumption acquisition module 10 is 0.2s level, and the lower the number is, the higher the acquisition accuracy is represented by + s. This is because the data collected by the powerconsumption collecting module 10 is the main data source of the power consumption load control scheme, and therefore the data accuracy requirement is higher.
To further determine the data accuracy, for a specificelectric device 60, theelectricity control module 20 may determine whether the electricity data collected by theelectricity collection module 10 is consistent with the monitoring signal obtained by the monitoringterminal 52, and send an alarm signal to themanagement server 30 if it is determined that the electricity data collected by theelectricity collection module 10 is inconsistent with the monitoring signal obtained by the monitoringterminal 52. Here, depending on the type or parameters of theelectricity collection module 10 and themonitoring terminal 52 used, the comparison between the electricity data and the monitoring signal may be performed directly or after conversion into a comparable amount.
To further determine the accuracy of the commands from the administrative user, thepowered control module 20 is further configured to, upon receiving a load control command from the administrative user, acknowledge the load control command and transmit the load control command back to theadministrative server 30 for the administrative user to acknowledge again. Here, the load control command transmitted back to themanagement server 30 may highlight, for example, an identifier of theelectric device 60 to be turned off by the load control command. The management user may confirm directly at themanagement server 30 or may receive and confirm the load control command from themanagement server 30 through themanagement terminal 40. The powerconsumption control module 20 may turn off thepower consumption device 60 specified in the load control command according to the load control command when receiving the load control command confirmed again by the management user.
In some embodiments according to the present invention, themanagement server 30 may also perform power integration on the respectiveelectric devices 60. Specifically, since it is known from the formula P — UIcos θ that the powers of the upper voltage class and the lower voltage class are equal (on the premise of neglecting the loss), the power and the current of the low voltage class can be converted into the power and the current of the high voltage class according to the calculation formula, so that different voltage classes (e.g., 35KV, 10KV, 6KV, etc.) can be integrated into the same voltage class. By the method, the information data island effect can be broken through, the data integrity and accuracy are greatly improved, and the problems of low information data integration level, poor interconnectivity and information management dispersion are solved.
The present invention may be methods, apparatus, systems and/or computer program products. The computer program product may include a computer-readable storage medium having computer-readable program instructions embodied therein for carrying out aspects of the present invention.
The computer readable storage medium may be a tangible device that can hold and store the instructions for use by the instruction execution device. The computer readable storage medium may be, for example, but not limited to, an electronic memory device, a magnetic memory device, an optical memory device, an electromagnetic memory device, a semiconductor memory device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a Static Random Access Memory (SRAM), a portable compact disc read-only memory (CD-ROM), a Digital Versatile Disc (DVD), a memory stick, a floppy disk, a mechanical coding device, such as punch cards or in-groove projection structures having instructions stored thereon, and any suitable combination of the foregoing. Computer-readable storage media as used herein is not to be construed as transitory signals per se, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through a waveguide or other transmission medium (e.g., optical pulses through a fiber optic cable), or electrical signals transmitted through electrical wires.
The computer-readable program instructions described herein may be downloaded from a computer-readable storage medium to a respective computing/processing device, or to an external computer or external storage device via a network, such as the internet, a local area network, a wide area network, and/or a wireless network. The network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers and/or edge servers. The network adapter card or network interface in each computing/processing device receives computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in a computer-readable storage medium in the respective computing/processing device.
Computer program instructions for carrying out operations of the present invention may be assembler instructions, Instruction Set Architecture (ISA) instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source or object code written in any combination of one or more programming languages, including AN object oriented programming language such as Smalltalk, C + +, or the like, as well as conventional procedural programming languages, such as the "C" language or similar programming languages.
Aspects of the present invention are described herein with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-readable program instructions.
These computer-readable program instructions may be provided to a processing unit of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processing unit of the computer or other programmable data processing apparatus, create means for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks. These computer-readable program instructions may also be stored in a computer-readable storage medium that can direct a computer, programmable data processing apparatus, and/or other devices to function in a particular manner, such that the computer-readable medium storing the instructions comprises an article of manufacture including instructions which implement the function/act specified in the flowchart and/or block diagram block or blocks.
The computer readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other devices to cause a series of operational steps to be performed on the computer, other programmable apparatus or other devices to produce a computer implemented process such that the instructions which execute on the computer, other programmable apparatus or other devices implement the functions/acts specified in the flowchart and/or block diagram block or blocks.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of instructions, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terms used herein were chosen in order to best explain the principles of the embodiments, the practical application, or technical improvements to the techniques in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.