CN114050579A - Adjustable load control method and system controlled by proxy user - Google Patents
Adjustable load control method and system controlled by proxy user Download PDFInfo
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- CN114050579A CN114050579A CN202111348832.9A CN202111348832A CN114050579A CN 114050579 A CN114050579 A CN 114050579A CN 202111348832 A CN202111348832 A CN 202111348832A CN 114050579 A CN114050579 A CN 114050579A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/14—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
- H02J3/144—Demand-response operation of the power transmission or distribution network
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00004—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the power network being locally controlled
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/24—Arrangements for preventing or reducing oscillations of power in networks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
- Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses an adjustable load control method and system controlled by an agent user, which are connected with a load circuit at the agent user side through a bus, communicating with a remote main station in a wireless mode, collecting the voltage, current and power information of a load line, establishing a load control strategy according to the control parameters of the remote master station, generating a load line control instruction set according to the acquired load power, when the power grid is in an emergency state, acquiring a large-scale control instruction set of the remote master station, analyzing the control instruction set to establish a load control strategy, generating a load line control instruction set, when the remote control of the remote master station is carried out, a remote control instruction set of the remote master station is obtained, the remote control instruction set is analyzed to generate a load circuit control instruction set, and controlling a corresponding load circuit switch to execute corresponding action according to the load circuit control instruction set, and collecting a switch position signal of the load circuit to upload the switch position signal to a remote master station. The invention provides guarantee for stable operation of the power grid, real-time load control and intelligent power utilization management.
Description
Technical Field
The invention relates to the technical field of power utilization information acquisition and power utilization management of a power system, in particular to an adjustable load control method and system controlled by a proxy user.
Background
With the promotion of the construction of an extra-high voltage power grid and an energy internet, a source grid load friendly interactive system is the requirement of the construction of an intelligent application system which can more economically, efficiently and safely improve the dynamic power balance capability of a power system through various interactive forms among a power supply, the power grid and a load. The resource coordination capability is improved, and the safe and stable operation of the power grid is guaranteed, so that the method becomes an important task for the construction of the power system. Especially, when an extra-high voltage power grid is in fault operation, the stability of the terminal power grid is greatly influenced, and the traditional regulation and control mode of substation line switching-out not only causes great loss to relevant power supply users and has a huge social influence, but also causes difficulty in coordinating large-scale switching-out and power limiting tasks by dispatchers. The loads are distinguished from the user perspective, so that the important loads can still normally supply power in an emergency, the secondary loads are very necessary to participate in the stable control of the power grid, and the load power limitation realized by the power utilization information acquisition system is completely controllable and feasible.
In view of the fact that the existing in-service mining terminal remote communication interface is single, the quantity of the mining controllable loads is small, further differentiation of the user loads is difficult to realize, and the requirements of user load subdivision and load removal in power grid stability control cannot be met, a user load real-time control method and a user load real-time control system which are used for load data real-time collection, user load data real-time transmission, master station control command real-time reception and load control real-time output are needed to be provided.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides an adjustable load control method and system controlled by a proxy user, and solves the technical problems of load terminal load real-time control and insufficient load subdivision capability in the prior art.
Specifically, the invention provides an adjustable load control method controlled by an agent user, which is connected with a load circuit at the agent user side through a bus and is communicated with a remote master station in a wireless mode, and the method comprises the following steps:
s1: collecting the voltage and current information of a load line of the agent user, and calculating the load power of the agent user in real time;
s2: acquiring control parameters of a remote master station;
s3: selecting a corresponding control mode according to the control parameters issued by the remote master station;
s4: generating a load line control instruction set in a corresponding control mode according to the requirement of cutting off the load line in real time, and outputting a control command in real time to realize the control of the load of the agent user;
s5: and uploading the acquired data and the control state to a remote control master station in real time.
Preferably, in step S2, the control parameters include: the system comprises a main station rapid large-scale load shedding instruction, a main station control instruction and parameter, a power conservation instruction and a main station power limiting load shedding instruction.
Preferably, in step S3, the control method includes: power grid stability control, local preset control and remote control of a remote master station.
Preferably, the power grid stability control is used for receiving a rapid large-scale load shedding instruction sent by a remote master station when a power grid enters an emergency state, so as to realize the control of rapidly cutting off load classification and ensuring the power grid stability.
Preferably, the grid stability control specifically includes: when the power grid is in an emergency state, the remote master station realizes load weight identification according to the load power of the agent users in the whole power grid, ensures that important loads are normally supplied and secondary loads participate in power grid power limitation, sends a rapid large-scale load cutting instruction in the whole power grid, simultaneously sends the instruction to the controlled agent user network load terminals in a concurrent mode, and immediately executes load cutting after the terminal receives the instruction.
Preferably, the local preset control realizes the load power control for multiple rounds according to a preset power set value and a control mode by receiving control parameters issued by the remote master station in advance.
Preferably, the on-site preset control specifically comprises: under the local preset control mode, comparing the obtained current total load power with a preset power fixed value: when the total load power exceeds a preset power fixed value, cutting off a corresponding load circuit according to a preset load cutting-off turn and delay time; and when the total load is lower than the preset power set value, automatically ending the load control and terminating the unexecuted round.
Preferably, the on-site preset control mode comprises: the power floating control, business reporting and stopping control, plant rest control and time interval control.
Preferably, when the remote control of the remote master station is performed, a remote control instruction set of the remote master station is obtained, and the remote control instruction set is analyzed to generate a load line control instruction set; the remote control instruction set of the remote master station comprises: a power limit load shedding instruction and a power protection instruction.
Preferably, when the communication with the remote main station is interrupted, a power-saving control mode is adopted; when the terminal is switched in with the power conservation, the terminal does not execute the remote control instruction issued by the main station.
The invention also provides a real-time control system of the agent user load, which is connected with a load circuit at the agent user side through a bus and is communicated with a remote master station in a wireless mode;
the real-time load acquisition and calculation module is used for acquiring voltage and current of a load line, calculating to obtain load power, uploading the acquired voltage, current and load power to a remote master station in real time, and sending the acquired voltage, current and load power to the power control module;
the preset parameter acquisition module is used for acquiring control parameters issued by the remote master station;
the power control module selects a corresponding control mode according to the control parameters issued by the remote master station; and outputting a control command in real time according to the requirement of cutting off the load line in real time to realize the control of the load of the agent user, and uploading the acquired data and the control state to the remote master station in real time.
Preferably, the real-time load collection and calculation module collects the incoming and outgoing line current and the bus voltage of a full-phase or non-full-phase line of a multi-path agent user, and the load power calculation module calculates the forward and reverse active power and the forward and reverse reactive power as well as the active power and the reactive power of all the summing lines.
Preferably, the control parameters include: the system comprises a main station rapid large-scale load shedding instruction, a main station control instruction and parameter, a power conservation instruction and a main station power limiting load shedding instruction.
Preferably, the system further includes a communication monitoring module for monitoring a state of a communication channel with the master station, a monitoring result of the communication monitoring module sends the power control module, and the power control module executes a corresponding unit according to the monitoring result.
Preferably, the power control module comprises a power grid stability control module, a local preset control module, a power limiting control module, a master station remote control module and a load line control module.
Preferably, the power grid stability control module is configured to establish a load analysis model according to the load power, identify the load weight, obtain a control instruction set issued by the remote master station, analyze the control instruction set to establish a load control policy, generate a load line control instruction set, and send the load line control instruction set to the load line control module.
Preferably, the power grid stability control module constructs a load characteristic vector, which includes regulation response time, load extreme time and adjustable load capacity, for calculating the characteristic distance.
Preferably, the power grid stability control module acquires all load characteristic quantities, performs normalization processing on the load data, and constructs a characteristic space and a distance for regulating and controlling selection of a user.
Preferably, the local preset control module is configured to establish a load control policy according to a control parameter issued by the remote master station, generate a load line control instruction set according to the load power acquired by the real-time load acquisition and calculation module, and send the load line control instruction set to the load line control module.
Preferably, the master station remote control module acquires a remote control instruction set of the remote master station, analyzes the remote control instruction set, generates a load line control instruction set, and sends the load line control instruction set to the load line control module.
Preferably, the master station remote control module receives a regulation instruction, response time and regulation time of the superior system, and calculates a characteristic vector of the regulation instruction.
Preferably, the load line control module is configured to control a corresponding load line switch to execute a corresponding action according to a load line control instruction set, and collect a switch position signal of the load line and upload the switch position signal to the remote master station.
Preferably, the load circuit control module further includes an alarm prompting unit, and when the load circuit control module outputs the load circuit control instruction, the alarm prompting unit outputs a corresponding voice prompt and an alarm.
Preferably, the load line control module further includes an event recording unit, and the event recording unit is configured to record the load power of the load line when the load line control instruction set is generated, and upload the record to the remote master station. Preferably, the load circuit control module searches for a load closest to the target command, and cuts off the corresponding load. And the load circuit control module calculates whether the regulation and control requirements are met or all the users are traversed, and if so, the regulation and control is finished.
Compared with the prior art, the invention has the following beneficial effects:
the invention calculates the load power of the agent user in real time by acquiring the load data of the agent user line, works in the modes of power grid stable control, local preset control, master station remote control and the like according to the control instruction and parameters issued by the remote master station, outputs a control command in real time according to the requirement of cutting off the load line in real time to realize the control of the agent user load, and uploads the acquired data and the control state to the master station in real time. When the power grid enters an emergency state, the power grid stability control receives a batch-sending quick load cutting instruction sent by the master station, realizes the classified quick removal of loads and ensures the power grid stability control. The local preset control realizes the multi-turn load power control at the agent user side according to the preset power set value and the control mode by receiving the instruction and the parameter issued by the master station in advance. The master station remote control realizes receiving of remote control instructions issued by the master station and remote load control or remote electric charge control. The invention is beneficial to realizing the functions of full-network stable load limiting, user power consumption control load, remote power charge control load shedding, master station remote control and the like when a large-scale power grid fails, and provides guarantee for stable operation, real-time load control and intelligent power consumption management of the power grid.
Drawings
FIG. 1 is a flow chart of a method for proxy user controlled adjustable load control in accordance with the present invention.
Fig. 2 is a schematic diagram of the architecture of the proxy user controlled adjustable load control system of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described herein are only some embodiments of the invention, and not all embodiments. All other embodiments obtained by a person skilled in the art without any inventive step based on the spirit of the present invention are within the scope of the present invention.
As shown in fig. 1, the method for controlling an adjustable load controlled by an agent user according to the present invention is connected to a load line on an agent user side through a bus, and communicates with a remote master station in a wireless manner, and includes the following steps:
s1: collecting the voltage and current information of the agent user load line, and calculating the agent user load power in real time;
s2: and acquiring the control parameters of the remote master station.
The control parameters include: the system comprises a main station rapid large-scale load shedding instruction, a main station control instruction and parameter, a power conservation instruction and a main station power limiting load shedding instruction.
S3: and selecting a corresponding control mode according to the control instruction and the parameters issued by the remote master station.
The control mode comprises the following steps: power grid stability control, local preset control and remote control of a remote master station.
The power grid stability control is used for receiving a batch-sending quick load cutting instruction sent by the master station when the power grid enters an emergency state, realizing the classified quick load cutting and ensuring the stability of the power grid. The method comprises the following steps:
when the power grid is in an emergency state, the master station realizes load weight identification according to the load power of the whole-network agent user, ensures normal power supply of important loads and ensures that secondary loads participate in power grid power limitation, issues a whole-network stable batch fast load cutting instruction, simultaneously sends the instruction to a controlled agent user network load terminal in a concurrent mode, and immediately executes load cutting after the terminal receives the instruction.
The load shedding operation is completed after the instruction is issued to the terminal, and the execution time of the whole control process does not exceed a second, so that the second-level rapid control of the whole-network large-scale agent user load is realized, the network load coordination capability is improved, and the safety and the stability of the power grid are guaranteed. And the line load which is cut off quickly is not allowed to be automatically switched on by the agent user before the stable control power limiting time is finished.
S4: and generating a load line control instruction set in a corresponding control mode according to the requirement of cutting off the load line in real time, and outputting a control command in real time to realize the control of the load of the agent user.
S5: and uploading the acquired data and the control state to a remote control master station in real time.
The local preset control realizes the multi-turn load power control according to the preset power set value and the control mode by receiving the control parameters issued by the remote master station in advance. Under the local preset control mode, comparing the obtained current total load power with a preset power fixed value:
when the total load power exceeds a preset power fixed value, cutting off a corresponding load circuit according to a preset load cutting-off turn and delay time;
and when the total load is lower than the preset power set value, automatically ending the load control and terminating the unexecuted round.
The local preset control mode comprises the following steps: the power floating control, business reporting and stopping control, plant rest control and time interval control. The existing control mode in the smart power grid of the power system is adopted by the modes of power floating control, business reporting and stopping control, plant rest control and time interval control.
When the remote control of the remote master station is carried out, a remote control instruction set of the remote master station is obtained, and the remote control instruction set is analyzed to generate a load circuit control instruction set.
The remote control instruction set of the remote master station comprises: a power limit load shedding instruction and a power protection instruction.
Power conservation refers to the disabling of the control switch set by the terminal. When the terminal is switched in with the power conservation, the terminal does not execute the remote control instruction issued by the main station. When receiving a real-time power limiting instruction calculated by a master station and a power limiting and load cutting instruction managed by electric charge, sending an alarm within preset alarm delay time, controlling an outlet to cut off a corresponding load line when the delay time is reduced to zero, and keeping a tripping outlet within the power limiting time without allowing an agent user to automatically switch on. And receiving an instruction sent by the master station to enable the load line to enter or exit a power conservation state, controlling a corresponding load line switch to execute corresponding action according to a load line control instruction set, and acquiring a switch position signal of the load line to upload the switch position signal to the remote master station.
When the power-saving state is in, the local preset control and master station power limit control instruction exits execution, and when the power-saving state exits, the local preset control and master station power limit control function recovers to take effect. And the power grid stable load control is not limited by the power protection function.
As shown in fig. 2, the present invention further provides an agent user controlled adjustable load control system, which is connected to an agent user side load line through a bus, and communicates with a remote master station in a wireless manner, and includes a real-time load acquisition and calculation module, a preset parameter acquisition module, and a power control module.
And the real-time load acquisition and calculation module is used for acquiring the voltage and the current of a load line and calculating to obtain the load power. And uploading the acquired voltage, current and load power to a main station in real time, and simultaneously sending the voltage, current and load power to a power control module.
The preset parameter acquisition module is used for acquiring control parameters issued by the remote master station, and the control parameters comprise a master station rapid large-scale load shedding instruction, master station control instructions and parameters, a power conservation instruction, a master station power limiting load shedding instruction and the like.
The power control module comprises a power grid stability control module, a local preset control module, a power limiting control module, a master station remote control module and a load line control module.
The power grid stability control module comprises a real-time control outlet processing unit and a stability control electricity limiting processing unit and is used for establishing a load analysis model and identifying load weight according to load power, acquiring a large-scale control instruction set of a remote master station, analyzing the control instruction set, establishing a load control strategy, generating a load line control instruction set and sending the load line control instruction set to the load line control module.
And the power grid stability control module is used for constructing a load characteristic vector which comprises regulation response time, load extreme value time and adjustable load capacity and is used for calculating characteristic distance. And acquiring all load characteristic quantities, carrying out normalization processing on the load data, and constructing a characteristic space and a distance for regulating and controlling selection of a user.
And the local preset control module is used for establishing a load control strategy according to the control parameters issued by the remote master station, generating a load circuit control instruction set according to the load power acquired by the real-time load acquisition and calculation module, and transmitting the load circuit control instruction set to the load circuit control module. The local preset control mode comprises the following steps: the power floating control, business reporting and stopping control, plant rest control and time interval control.
And the master station remote control module acquires a remote control instruction set of the remote master station, analyzes the remote control instruction set, generates a load line control instruction set and sends the load line control instruction set to the load line control module. And the master station remote control module receives the regulation and control instruction, the response time and the regulation and control time of the superior system and calculates the characteristic vector of the regulation and control instruction.
And the load line control module is used for controlling a corresponding load line switch to execute corresponding actions according to the load line control instruction set, and acquiring a switch position signal of the load line and uploading the switch position signal to the remote master station. And the load circuit control module is used for searching the load closest to the target instruction and cutting off the corresponding load. And calculating whether the regulation and control requirements are met or all the users are traversed, and if so, finishing the regulation and control.
The invention calculates the load power of the agent user in real time by acquiring the load data of the agent user line, works in the modes of power grid stable control, local preset control, master station remote control and the like according to the control instruction and parameters issued by the remote master station, outputs a control command in real time according to the requirement of cutting off the load line in real time to realize the control of the agent user load and uploads the acquired data and the control state to the master station in real time.
The specific process of quickly cutting off the load of a large agent user when the power grid is in an emergency state is that when an extra-high voltage power grid fails, the provincial energy management system firstly obtains relevant fault information, sends the relevant fault information to the main station load control quick response system in a work area, and then directly sends batch quick control instructions to the system of the invention by the main station in the work area. When the power grid is in an emergency state, the master station realizes load weight identification according to the load power of the whole-network agent user, ensures normal power supply of important loads and ensures that secondary loads participate in power grid power limitation, issues a whole-network stable batch fast load cutting instruction, simultaneously sends the instruction to a controlled agent user network load terminal in a concurrent mode, and immediately executes load cutting after the terminal receives the instruction.
The system is directly connected with a main station through optical fibers, and long connection is kept online.
Furthermore, the collection interfaces of the load circuit are rich, the load collection unit can collect the incoming and outgoing line current and the bus voltage of the full-phase or non-full-phase circuit of multiple agent users, wherein the outgoing line branch of the full-phase load is not less than 8, and the incoming and outgoing line branch of the non-full-phase line is not less than 12.
The load power calculating unit calculates forward and reverse active power, forward and reverse reactive power and active power and reactive power of all the summing lines.
The on-off position acquisition of the load circuit in the load circuit control module comprises the acquisition of switching value input signals in various contact forms, the simultaneous acquisition of more than 32 switching values is supported, the resolution of the switching value can be expanded to be not more than 10ms, and the self-tuning identification time interval is supported.
Furthermore, the system of the present invention further includes a communication monitoring module for monitoring the state of the communication channel with the master station, the monitoring result of the communication monitoring module sends the power control module, and the power control module executes the corresponding unit according to the monitoring result. And when the communication interruption with the master station is detected, automatically entering a power-saving state. When communication is recovered, the state before communication interruption is automatically recovered.
Furthermore, the load circuit control module also comprises an alarm prompting unit, and when the load circuit control module outputs a load circuit control instruction, the alarm prompting unit outputs corresponding voice prompt and alarm. The voice warning or prompting function under various running states or control modes is supported, the voice prompting warning consistent with the information content is provided under various modes such as control instruction execution under various control modes, automatic execution of load shedding for multiple times, agent user recovery of closing power utilization, communication interruption or recovery and the like, the agent user can conveniently master the execution state and the control result of a load circuit at the agent user side, and intelligent management of power utilization information is facilitated.
Further, the load line control module further comprises an event recording unit, and the event recording unit is used for recording the load power of the load line when the load line control instruction set is generated, and uploading the record to the remote master station. So that the agent user can know the running state before the switch action on the agent user side in time.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.
Claims (26)
1. An adjustable load control method controlled by an agent user is connected with a load circuit at the agent user side through a bus and is communicated with a remote main station in a wireless mode, and is characterized by comprising the following steps:
s1: collecting the voltage and current information of a load line of the agent user, and calculating the load power of the agent user in real time;
s2: acquiring control parameters of a remote master station;
s3: selecting a corresponding control mode according to the control parameters issued by the remote master station;
s4: generating a load line control instruction set in a corresponding control mode according to the requirement of cutting off the load line in real time, and outputting a control command in real time to realize the control of the load of the agent user;
s5: and uploading the acquired data and the control state to a remote control master station in real time.
2. The method according to claim 1, wherein in the step S2, the control parameters include: the system comprises a main station rapid large-scale load shedding instruction, a main station control instruction and parameter, a power conservation instruction and a main station power limiting load shedding instruction.
3. The method of claim 1,
in step S3, the control method includes: power grid stability control, local preset control and remote control of a remote master station.
4. The method of claim 3,
the power grid stability control is used for receiving a rapid large-scale load shedding instruction sent by a remote master station when a power grid enters an emergency state, achieving rapid load classification shedding and ensuring the power grid stability control.
5. The method of claim 3,
the power grid stability control specifically comprises: when the power grid is in an emergency state, the remote master station realizes load weight identification according to the load power of the agent users in the whole power grid, ensures that important loads are normally supplied and secondary loads participate in power grid power limitation, sends a rapid large-scale load cutting instruction in the whole power grid, simultaneously sends the instruction to the controlled agent user network load terminals in a concurrent mode, and immediately executes load cutting after the terminal receives the instruction.
6. The method of claim 3,
and the local preset control realizes the multi-turn load power control according to a preset power set value and a control mode by receiving control parameters issued by the remote master station in advance.
7. The method of claim 6,
the local preset control specifically comprises:
under the local preset control mode, comparing the obtained current total load power with a preset power fixed value:
when the total load power exceeds a preset power fixed value, cutting off a corresponding load circuit according to a preset load cutting-off turn and delay time;
and when the total load is lower than the preset power set value, automatically ending the load control and terminating the unexecuted round.
8. The method of claim 7,
the local preset control mode comprises the following steps: the power floating control, business reporting and stopping control, plant rest control and time interval control.
9. The method of claim 3,
when the remote control of the remote master station is carried out, a remote control instruction set of the remote master station is obtained, and the remote control instruction set is analyzed to generate a load circuit control instruction set; the remote control instruction set of the remote master station comprises: a power limit load shedding instruction and a power protection instruction.
10. The method of claim 9, wherein when communication with the remote host station is interrupted, a power conservation control mode is employed; when the terminal is switched in with the power conservation, the terminal does not execute the remote control instruction issued by the main station.
11. A real-time control system for the load of an agent user is connected with a load circuit at the agent user side through a bus and is communicated with a remote master station in a wireless mode, and is characterized by comprising a real-time load acquisition and calculation module, a preset parameter acquisition module and a power control module;
the real-time load acquisition and calculation module is used for acquiring voltage and current of a load line, calculating to obtain load power, uploading the acquired voltage, current and load power to a remote master station in real time, and sending the acquired voltage, current and load power to the power control module;
the preset parameter acquisition module is used for acquiring control parameters issued by the remote master station;
the power control module selects a corresponding control mode according to the control parameters issued by the remote master station; and outputting a control command in real time according to the requirement of cutting off the load line in real time to realize the control of the load of the agent user, and uploading the acquired data and the control state to the remote master station in real time.
12. The system of claim 11, wherein the real-time load collection and calculation module collects incoming and outgoing line currents and bus voltages of all-phase or non-all-phase lines of the multi-path agent users, and the load power calculation calculates forward and reverse active power and forward and reverse reactive power and active power and reactive power of all summing lines.
13. The system of claim 11, wherein the control parameters comprise: the system comprises a main station rapid large-scale load shedding instruction, a main station control instruction and parameter, a power conservation instruction and a main station power limiting load shedding instruction.
14. The system of claim 11, further comprising a communication monitoring module for monitoring the status of the communication channel with the master station, wherein the monitoring result of the communication monitoring module is transmitted to the power control module, and the power control module executes the corresponding unit according to the monitoring result.
15. The system of claim 11, wherein the power control module comprises a grid stability control module, a local preset control module, a limit control module, a master station remote control module, and a load line control module.
16. The system of claim 15, wherein the grid stability control module is configured to establish a load analysis model according to the load power, identify a load weight, obtain a control instruction set issued by the remote master station, analyze the control instruction set to establish a load control policy, generate a load line control instruction set, and send the load line control instruction set to the load line control module.
17. The system of claim 15, wherein the grid stability control module is configured to construct a load characteristic vector comprising a control response time, a load extreme time, and an adjustable load capacity for calculating the characteristic distance.
18. The system of claim 17, wherein the grid stability control module obtains all load characteristic quantities, normalizes the load data, and constructs a characteristic space and a distance for regulating and controlling selection of a user.
19. The system of claim 15, wherein the local default control module is configured to establish a load control policy according to the control parameters issued by the remote master station, generate a load line control instruction set according to the load power acquired by the real-time load acquisition and calculation module, and send the load line control instruction set to the load line control module.
20. The system of claim 15, wherein the master remote control module obtains a set of remote control commands for the remote master, analyzes the set of remote control commands to generate a set of load circuit control commands, and sends the set of load circuit control commands to the load circuit control module.
21. The system of claim 15, wherein the master remote control module receives the control command, the response time, and the control time of the superior system, and calculates the characteristic vector of the control command.
22. The system of claim 15, wherein the load line control module is configured to control a corresponding load line switch to perform a corresponding action according to a load line control instruction set, and collect a switch position signal of the load line to upload to the remote master station.
23. The system of claim 15, wherein the load circuit control module further comprises an alarm prompting unit, and when the load circuit control module outputs the load circuit control command, the alarm prompting unit outputs a corresponding voice prompt and an alarm.
24. The system of claim 15, wherein the load line control module further comprises an event logging unit configured to log the load power of the load line at the time of generating the load line control instruction set, and to upload the log to the remote master station.
25. The system of claim 15, wherein the load circuit control module is configured to find a load closest to the target command and to remove the corresponding load.
26. The system of claim 15, wherein the load circuit control module calculates whether regulatory requirements are met or all users have been traversed, and if so, the regulation is complete.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116404658A (en) * | 2023-04-28 | 2023-07-07 | 国网山东省电力公司聊城供电公司 | Method, device and medium for selecting user and switch during emergency load control |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106160229A (en) * | 2016-08-02 | 2016-11-23 | 江苏方天电力技术有限公司 | A kind of customer charge real-time control method and system |
| US20180015838A1 (en) * | 2014-09-14 | 2018-01-18 | Electric Motor Werks, Inc. | Systems and methods for enabling automatic management of power loads and power generation based on user-specified set of rules |
| CN108898154A (en) * | 2018-09-29 | 2018-11-27 | 华北电力大学 | A kind of electric load SOM-FCM Hierarchical clustering methods |
| CN109921430A (en) * | 2017-12-12 | 2019-06-21 | 河南许继仪表有限公司 | A kind of load control terminal and its control method |
| CN110097214A (en) * | 2019-04-11 | 2019-08-06 | 华北电力大学 | A kind of automatic demand response user gradation evaluation method based on integrated energy system |
-
2021
- 2021-11-15 CN CN202111348832.9A patent/CN114050579A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180015838A1 (en) * | 2014-09-14 | 2018-01-18 | Electric Motor Werks, Inc. | Systems and methods for enabling automatic management of power loads and power generation based on user-specified set of rules |
| CN106160229A (en) * | 2016-08-02 | 2016-11-23 | 江苏方天电力技术有限公司 | A kind of customer charge real-time control method and system |
| CN109921430A (en) * | 2017-12-12 | 2019-06-21 | 河南许继仪表有限公司 | A kind of load control terminal and its control method |
| CN108898154A (en) * | 2018-09-29 | 2018-11-27 | 华北电力大学 | A kind of electric load SOM-FCM Hierarchical clustering methods |
| CN110097214A (en) * | 2019-04-11 | 2019-08-06 | 华北电力大学 | A kind of automatic demand response user gradation evaluation method based on integrated energy system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116404658A (en) * | 2023-04-28 | 2023-07-07 | 国网山东省电力公司聊城供电公司 | Method, device and medium for selecting user and switch during emergency load control |
| CN116404658B (en) * | 2023-04-28 | 2024-04-23 | 国网山东省电力公司聊城供电公司 | Method, device and medium for selecting user and switch during emergency load control |
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