CN106816878B - Demand response regulation and control device and method applied to electric power irrigation and drainage facilities - Google Patents
Demand response regulation and control device and method applied to electric power irrigation and drainage facilities Download PDFInfo
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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
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/16—Control of watering
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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
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/50—The network for supplying or distributing electric power characterised by its spatial reach or by the load for selectively controlling the operation of the loads
- H02J2310/56—The network for supplying or distributing electric power characterised by its spatial reach or by the load for selectively controlling the operation of the loads characterised by the condition upon which the selective controlling is based
- H02J2310/62—The condition being non-electrical, e.g. temperature
- H02J2310/64—The condition being economic, e.g. tariff based load management
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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
Abstract
The invention provides a demand response regulation and control device and method applied to electric power irrigation and drainage facilities, wherein the device comprises a microprocessor module, a communication module, a safety module, an interface module, a data acquisition module, a data storage module, a real-time clock module, a watchdog module and a power management module; the problem that the existing power drainage and irrigation facility is not high enough in automation level, cannot participate in demand response, automatically analyzes a demand response signal sent by a demand response server, cannot generate an equipment time interval operation strategy and directly controls starting and stopping of equipment according to the strategy is solved, the power drainage and irrigation facility is used for supporting participation in demand response business, electricity charges are saved for users and subsidies are obtained on the basis of electricity price and an incentive policy, and loads can be started when the loads are needed to be consumed, so that low-price electric energy is obtained or subsidies are obtained.
Description
Technical Field
The invention relates to electric automation for irrigation and drainage facilities and automatic participation in demand response thereof, in particular to a demand response regulation and control device and method applied to electric irrigation and drainage facilities.
Background
Irrigation and drainage of waterlogging have very important significance for overcoming drought and waterlogging disasters and promoting the development of agriculture, forestry and animal husbandry. With the enhancement of farmland infrastructure and the improvement of productivity level, many places utilize electric power for irrigation and drainage, which results in obvious seasonal characteristics of agricultural power utilization, namely, in two seasons of spring and summer with prominent drought and flood control problems, the power consumption and the power utilization load are obviously higher than those in other seasons. In addition, because the automation degree of the prior irrigation and drainage facilities is low, besides that a lot of irrigation and drainage facilities still need to be manually controlled to start and stop, the automatic irrigation and drainage facilities which can be realized at present can not intelligently participate in demand response, so that the electricity consumption for irrigation and drainage is obvious in seasonality, and the load on the same day is different between day and night due to the work and rest habits of people. When the power supply is short at the peak time of power utilization, the phenomena of severe wind and light abandonment still exist at the valley time of power utilization, and a large amount of electric energy is wasted. Due to the characteristics, the situation that the power supply of a power grid is short in summer and the reliability faces serious threats is aggravated; due to the capacity limitation of the transformer, the irrigation and drainage activities of users are severely limited; but also causes a great deal of waste of electrical energy.
The situation of shortage of power supply and demand in China still happens occasionally, the phenomena of wind and light abandonment are aggravated continuously, and the development of demand response work is highly emphasized by relevant departments such as development and improvement committee and the like. At present, although an automatic irrigation and drainage control system can realize automation of farmland irrigation and drainage, the system cannot meet the requirements of maximizing economic benefits of users, cutting peaks and filling valleys of a power grid, absorbing renewable energy sources and the like, and is specifically represented in the following two aspects: on one hand, under the condition that the supply and demand of a power grid are in shortage, such as short supply and short demand at the moment of peak power utilization, or renewable energy sources in the power grid can not be effectively consumed, and when the supply is larger than the demand, flexible time-of-use electricity price, real-time electricity price and other electricity price policies can be formulated, but the existing automatic irrigation and drainage control system can not realize operation in different time periods according to the flexible electricity price policies; on the other hand, when demand response implementing organizations such as demand response service providers and load aggregators organize and implement peak load reduction or renewable energy consumption planning tasks, the existing automatic irrigation and drainage control system cannot automatically participate in the planning tasks, and therefore cannot obtain corresponding incentives.
The invention patent with the application number of 201320283908.9 provides a farmland automatic irrigation and drainage control system based on wireless transmission, in particular provides an automatic irrigation and drainage device which can timely and properly irrigate according to the water requirement rule of crops, and makes a drainage or irrigation decision according to water level information.
Disclosure of Invention
The invention provides a demand response regulation and control device and a demand response regulation and control method applied to an electric power drainage and irrigation facility, which are used for supporting the electric power drainage and irrigation facility to participate in demand response business, saving electric charge and obtaining subsidies for users on the basis of electricity price and incentive policy, and starting a load when the load is needed to be consumed, so that low-price electric energy is obtained or the subsidies are obtained.
In order to achieve the purpose of the invention, the invention adopts the following technical scheme:
the invention provides a demand response regulation and control device applied to electric power irrigation and drainage facilities, which comprises a microprocessor module, a communication module, a safety module, an interface module, a data acquisition module, a data storage module, a real-time clock module, a watchdog module and a power management module, wherein the microprocessor module is used for receiving a control signal from the control module;
the communication module, the safety module, the interface module, the data acquisition module, the data storage module, the real-time clock module and the watchdog module are all in bidirectional connection with the microprocessor module, and the power management module is simultaneously in unidirectional connection with the microprocessor module and the interface module.
The microprocessor module is based on the demand response strategy in the demand response strategy library and matches with the operation regulation strategy in the operation regulation strategy library to further generate an operation regulation instruction.
The communication module is communicated with the demand response server and the user mobile terminal through a communication network, sends the electricity consumption information of the power drainage and irrigation facility to the demand response server and the user mobile terminal, receives the electricity price information and the incentive information sent by the demand response server, and simultaneously receives a user control instruction sent by the user mobile terminal.
The data acquisition module is used for acquiring the running state parameters of the electric power irrigation and drainage facility, monitoring the acquired running state parameters and measuring the electric parameters and the environmental parameters of the electric power irrigation and drainage facility;
the electrical parameters comprise the electrical parameters of each host and the electrical parameters of the related component parts;
the environmental parameters include soil humidity, water level and temperature.
The data storage module is internally provided with a demand response strategy library and an operation regulation and control strategy library which are used for storing basic information, operation state parameters, electric parameters, environment parameters and historical data of the electric power irrigation and drainage facility;
the basic information includes the number, address, user telephone and power supply priority of the power drain and irrigation facility.
The demand response server distinguishes and searches the electric power irrigation and drainage facilities by calling and matching the basic information of the electric power irrigation and drainage facilities.
The safety module is used for verifying the legality of the running state parameters, the electric parameters and the environmental parameters of the electric power irrigation and drainage facilities collected by the data collection module, encrypting the feedback signals, keeping secret the basic information of the user, ensuring that the basic information of the user is safe and does not flow out, and playing a role in protecting the privacy of the user.
The microprocessor module completes the issuing of an operation regulation instruction through an interface module, and the interface module comprises a digital interface, an analog interface, RJ45, RS232 and RS 485;
the analog interface collects analog signals, processes the collected module signals, and then generates and outputs analog control signals;
the digital interface collects digital signals and is used for judging the running state of each water pump unit in the electric power irrigation and drainage facility and then generating and outputting digital control signals.
The real-time clock module provides accurate time for the device, prevents the occurrence of wrong operation time interval of the electric power irrigation and drainage facility and ensures the normal execution of an operation regulation and control strategy;
the watchdog module is used for monitoring whether the device normally operates;
and the power supply management module is responsible for the management and distribution of the electric energy of the device.
The user mobile terminal comprises a smart phone and a tablet personal computer, the user remotely monitors the operation state of the electric power drainage and irrigation facility in real time through the user mobile terminal, and when the user refuses to regulate and control the electric power drainage and irrigation facility according to the operation regulation and control strategy, the user issues a manual control instruction, and when the manual control instruction issued by the user conflicts with the operation regulation and control instruction issued by the microprocessor module, the electric power drainage and irrigation facility operates according to the manual control instruction issued by the user.
The invention also provides a demand response regulation and control method applied to the electric power irrigation and drainage facility, which comprises the following steps:
receiving the demand response event information and judging the demand response type;
matching corresponding demand response strategies according to different demand response categories;
and executing an operation regulation strategy according to the demand response strategy.
Receiving the demand response event information, and judging the demand response type specifically includes:
receiving demand response event information sent by a demand response server;
and judging the demand response type according to the demand response event information, wherein the demand response type comprises incentive type demand response and electricity price type demand response.
Matching the corresponding demand response policy according to the different demand response categories specifically includes:
if the demand response type is an excitation type demand response, firstly receiving and analyzing a load reduction signal or a renewable energy consumption signal, and then matching a corresponding demand response strategy according to the excitation type demand response;
if the demand response type is the electricity price type demand response, the electricity price signal is received firstly, and then the corresponding demand response strategy is matched according to the electricity price type demand response.
Matching the corresponding demand response strategies according to different demand response categories comprises:
if the demand response type is an excitation type demand response, acquiring electric parameters, environmental parameters and running state parameters of the electric power drainage and irrigation facility, then determining the response grade and the response capacity, uploading a feedback signal, finally judging whether the demand response event requirement is met, if the demand response event requirement is met, sending a confirmation signal by a demand response server, and if the demand response event requirement is not met, continuously receiving and analyzing a load reduction signal or a renewable energy consumption signal and executing subsequent operation;
and if the demand response type is the electricity price demand response, acquiring the electric parameters, the environmental parameters and the running state parameters of the electric power drainage and irrigation facility, then determining the response grade and the response capacity, uploading a feedback signal, and issuing a confirmation signal by the demand response server according to the feedback signal.
The step of judging whether the requirement of the demand response event is met specifically comprises the following steps:
uploading a load reduction plan or a renewable energy consumption plan to a demand response server, and issuing signals by the demand response server according to the summary result, wherein the conditions are as follows:
1) if the summary result meets the requirement of the demand response event, the demand response server sends a confirmation signal;
2) and if the summary result does not meet the requirement of the demand response event, the demand response server issues a signal for reformulating the demand response strategy, continues to receive and analyze the load reduction signal or the renewable energy consumption signal, re-matches the demand response strategy and feeds back the demand response strategy until the summary result meets the requirement of the demand response event, and at the moment, the demand response server issues a confirmation signal.
Executing the operation regulation and control strategy according to the demand response strategy specifically comprises:
receiving a confirmation signal sent by a demand response server;
and executing an operation regulation strategy according to the demand response strategy and the confirmation signal.
After executing the operation regulation and control strategy according to the demand response strategy, the method comprises the following steps:
judging whether the demand response belongs to the emergency demand response or not according to the response grade; if the emergency demand response does not belong to the emergency demand response, the user selects to carry out load control in a manual mode or an automatic mode; if the emergency demand response is met, the user needs to perform load control in an automatic mode;
executing a demand response strategy, and generating an operation regulation and control instruction based on an operation regulation and control strategy in an operation regulation and control strategy library;
recording the starting time and the ending time of the demand response, and the electric parameters, the environmental parameters and the running state parameters of the electric power irrigation and drainage facility in the demand response process, encrypting the recorded information, and sending the encrypted information to the demand response server.
The step of selecting to perform load control in a manual mode or an automatic mode by a user specifically comprises the following steps:
if the user selects an automatic mode to carry out load control, automatically controlling the start and stop of each water pump unit according to an operation regulation strategy;
and if the user selects a manual mode to carry out load control, the user regulates and controls the electric power irrigation and drainage facility according to the execution result of the demand response strategy and the operation regulation and control strategy.
The demand response policy includes response participation object information, response object operational state information, and response scheduling information.
Aiming at price type demand response and incentive type demand response, the corresponding demand response strategies are divided into the following conditions according to the principle that the influence on crops in irrigation areas cannot be generated:
for the electric irrigation and drainage facility only comprising a single water pump unit, firstly confirming the working state of the water pump unit in a demand response time period, dividing the demand response time period according to the operation necessity and emergency degree of the water pump unit, and preferentially shutting down or reducing the flow rate in a non-necessary operation time period when the load is reduced;
for the electric power drainage and irrigation facility aggregated by at least two water pump units, on the premise of meeting the requirement of demand response, the water pump units are selected to be the units needing response according to the operation necessity and the emergency degree in each demand response time period, the specific operation is that unnecessary operation water pump units are preferentially selected when the required load is reduced, emergency water pump units are preferentially selected when the required load is absorbed, and finally the response load is determined.
The operation regulation and control strategy comprises the steps of regulating the flow of the water pump unit by using the frequency conversion device and starting and stopping the whole water pump unit.
Compared with the closest prior art, the technical scheme provided by the invention has the following beneficial effects:
the demand response regulation and control device applied to the electric power drainage and irrigation facility is internally provided with the demand response strategy library and the operation regulation and control strategy library, responds to the load reduction command and the renewable energy consumption command at the same time, and supports real-time updating;
the demand response strategy in the demand response strategy library is combined with the running state parameters and the environmental parameters of the electric power irrigation and drainage facility to determine the necessity and urgency of running of the unit at each time period, and the priority running sequence of the response unit is formulated, so that the influence of the load change of the unit on production and life is reduced to the maximum extent;
the demand response regulation and control device applied to the electric power irrigation and drainage facility provided by the invention is internally provided with an operation regulation and control strategy library of the electric power irrigation and drainage facility, and converts a demand response strategy into an operation regulation and control instruction aiming at the electric power irrigation and drainage facility;
the demand response regulation and control device applied to the electric power drainage and irrigation facility is deployed at the electric power drainage and irrigation facility side, can acquire the power utilization parameters, the environmental parameters and the like at the electric power drainage and irrigation facility side, and can regulate and control the running state of the demand response device to respond to the demand response signal requirements of the power grid side or a load aggregator, so that the cost is saved or the economic benefit is generated for users, and the running reliability of a power grid is improved;
in the aspect of participating in automatic demand response business, the demand response regulation and control device applied to the electric power irrigation and drainage facility can replace manpower, automatically realize load control of the electric power irrigation and drainage facility and avoid uncertain factors caused by manual participation;
the demand response task aimed by the demand response regulation and control device applied to the electric power irrigation and drainage facility can be used for consuming renewable energy sources besides load reduction type demand response, and the load is started at the moment when the supply is larger than the demand, and a part of load is transferred to the time period when the generation supply of the renewable energy sources is larger than the demand;
the demand response regulation and control device applied to the electric power irrigation and drainage facility can enable the irrigation and drainage system to execute according to the strategy and accept manual intervention, the priority of the manual intervention command of the user is higher, after the user issues the command, the demand response strategy execution is stopped, and the electric power irrigation and drainage facility directly operates according to the user command;
for the water pump unit which participates in demand response through the load aggregator, as part of the load aggregator needs to meet a certain response task, when the load aggregator summarizes feedback information and cannot meet a reduction task, the load aggregator resends a response instruction, and the demand response regulation and control device applied to the power drainage and irrigation facility has the function of re-matching an operation strategy after receiving the instruction;
aiming at different demand response grades, the demand response regulation and control device applied to the electric power drainage and irrigation facility can make different operation regulation and control strategies, and the demand response regulation and control device applied to the electric power drainage and irrigation facility is internally provided with the operation regulation and control strategies for the electric power drainage and irrigation system consisting of a plurality of water pump units, and the operation regulation and control strategies can reasonably arrange the sequence of the units participating in automatic demand response according to the demand response event information from a power grid side demand response server, by combining the operation parameters and the environmental parameters of the power drainage and irrigation system, the necessity and the urgency of the operation of each water pump unit are comprehensively considered, so that the execution efficiency of the automatic demand response service is improved, and the economic loss caused by unreasonable operation of the units is effectively avoided.
Drawings
FIG. 1 is a schematic structural diagram of a demand response control device applied to an electric power irrigation and drainage facility according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a data exchange of a demand response control device applied to an electric irrigation and drainage facility according to an embodiment of the present invention;
fig. 3 is a flowchart of a demand response control method applied to an electric power irrigation and drainage facility according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The invention provides automatic demand response regulation and control for the electric power irrigation and drainage facilities, which not only reduces the power consumption peak, relieves the pressure of the power grid, and improves the operation reliability of the power grid; the workload of manually operating irrigation and drainage facilities by a user is reduced, and convenience is provided for the user; and under the background of serious light and wind abandoning conditions, the method provides technical support for effectively consuming renewable energy sources to generate electricity.
The invention provides a demand response regulation and control device applied to an electric power irrigation and drainage facility, which comprises a microprocessor module, a communication module, a safety module, an interface module, a data acquisition module, a data storage module, a real-time clock module, a watchdog module and a power management module, wherein the communication module is used for communicating with the safety module and the interface module;
the communication module, the safety module, the interface module, the data acquisition module, the data storage module, the real-time clock module and the watchdog module are all in bidirectional connection with the microprocessor module, and the power management module is simultaneously in unidirectional connection with the microprocessor module and the interface module.
The microprocessor module is based on the demand response strategy in the demand response strategy library and matches with the operation regulation strategy in the operation regulation strategy library to further generate an operation regulation instruction.
The communication module is communicated with the demand response server and the user mobile terminal through a communication network, sends the electricity consumption information of the power drainage and irrigation facility to the demand response server and the user mobile terminal, receives the electricity price information and the incentive information sent by the demand response server, and simultaneously receives a user control instruction sent by the user mobile terminal.
The data acquisition module is used for acquiring the running state parameters of the electric power irrigation and drainage facility, monitoring the acquired running state parameters and measuring the electric parameters and the environmental parameters of the electric power irrigation and drainage facility;
the electrical parameters comprise the electrical parameters of each host and the electrical parameters of the related component parts;
the environmental parameters include soil humidity, water level and temperature.
The data storage module is internally provided with a demand response strategy library and an operation regulation and control strategy library which are used for storing basic information, operation state parameters, electric parameters, environment parameters and historical data of the electric power irrigation and drainage facility;
the basic information includes the number, address, user telephone and power supply priority of the power drain and irrigation facility.
The demand response server distinguishes and searches the electric power irrigation and drainage facilities by calling and matching the basic information of the electric power irrigation and drainage facilities.
The safety module is used for verifying the legality of the running state parameters, the electrical parameters and the environmental parameters of the electric power drainage and irrigation facilities collected by the data collection module, and on the other hand, in order to prevent sent information from being tampered, the safety module encrypts feedback signals and keeps secret user basic information, so that the safety of the user basic information is guaranteed, the user basic information is prevented from flowing outwards, and the effect of protecting the privacy of a user is achieved.
The micro-processing module completes the issuing of the operation regulation and control instruction through an interface module, and the interface module comprises a digital interface, an analog interface, RJ45, RS232 and RS 485;
the analog interface collects analog signals, processes the collected module signals, and then generates and outputs analog control signals;
the digital interface collects digital signals and is used for judging the running state of each water pump unit in the electric power irrigation and drainage facility and then generating and outputting digital control signals.
The real-time clock module provides accurate time for the device, prevents the occurrence of wrong operation time interval of the electric power irrigation and drainage facility and ensures the normal execution of an operation regulation and control strategy;
the watchdog module is used for monitoring whether the device normally operates;
and the power management module is responsible for the management and distribution of the electric energy of the device.
The user mobile terminal comprises a smart phone and a tablet personal computer, the user remotely monitors the operation state of the electric power drainage and irrigation facility in real time through the user mobile terminal, and when the user refuses to regulate and control the electric power drainage and irrigation facility according to the operation regulation and control strategy, the user issues a manual control instruction, and when the manual control instruction issued by the user conflicts with the operation regulation and control instruction issued by the microprocessor module, the electric power drainage and irrigation facility operates according to the manual control instruction issued by the user.
The demand response regulation and control device provided by the invention is arranged at the side of electric power drainage and irrigation facility equipment and is communicated with a demand response server and a user mobile terminal through a communication network; and selecting a field distributed bus or other local area networks to communicate with each water pump unit of the electric power irrigation and drainage facility according to actual conditions.
The invention also provides a demand response regulation and control method applied to the electric power irrigation and drainage facility, as shown in fig. 3, the demand response regulation and control method specifically comprises the following steps:
s101: receiving the demand response event information and judging the demand response type;
s102: matching corresponding demand response strategies according to different demand response categories;
s103: and executing an operation regulation strategy according to the demand response strategy.
S101 comprises the following specific processes:
receiving demand response event information sent by a demand response server;
and judging whether the demand response type is incentive type demand response or electricity price type demand response according to the demand response event information.
The specific process of S102 is divided into the following cases:
case 1: if the demand response type is an excitation type demand response, firstly receiving and analyzing a load reduction signal or a renewable energy consumption signal, and then matching a corresponding demand response strategy according to the excitation type demand response;
case 2: if the demand response type is the electricity price type demand response, the electricity price signal is received firstly, and then the corresponding demand response strategy is matched according to the electricity price type demand response.
S102 is followed by two cases:
case 1: if the demand response type is an excitation type demand response, acquiring electric parameters, environmental parameters and running state parameters of the electric power drainage and irrigation facility, then determining the response grade and the response capacity, uploading a feedback signal, finally judging whether the demand response event requirement is met, if the demand response event requirement is met, sending a confirmation signal by a demand response server, and if the demand response event requirement is not met, continuously receiving and analyzing a load reduction signal or a renewable energy consumption signal and executing subsequent operation;
the specific process for judging whether the requirement of the demand response event is met is as follows:
uploading the load reduction plan or the renewable energy consumption plan to a demand response server, and sending a signal by the demand response server according to the summary result, wherein the situations are as follows:
1) if the summary result meets the requirement of the demand response event, the demand response server sends a confirmation signal;
2) and if the summary result does not meet the requirement of the demand response event, the demand response server issues a signal for reformulating the demand response strategy, continues to receive and analyze the load reduction signal or the renewable energy consumption signal, re-matches the demand response strategy and feeds back the demand response strategy until the summary result meets the requirement of the demand response event, and at the moment, the demand response server issues a confirmation signal.
Case 2: and if the demand response type is the electricity price demand response, acquiring the electric parameters, the environmental parameters and the running state parameters of the electric power drainage and irrigation facility, then determining the response grade and the response capacity, uploading a feedback signal, and issuing a confirmation signal by the demand response server according to the feedback signal.
S103 specifically comprises the following steps:
receiving a confirmation signal sent by a demand response server;
and executing an operation regulation strategy according to the demand response strategy and the confirmation signal.
After S103, the following operations are also performed:
1) judging whether the demand response belongs to the emergency demand response according to the response grade:
1-1) if the emergency demand response is not met, the user selects to perform load control in a manual mode or an automatic mode; the specific classification is as follows:
if the user selects an automatic mode to carry out load control, automatically controlling the start and stop of each water pump unit according to an operation regulation strategy;
and if the user selects a manual mode to carry out load control, the user regulates and controls the electric power irrigation and drainage facility according to the execution result of the demand response strategy and the operation regulation and control strategy.
1-2) if the emergency demand response is available, the user must perform load control in an automatic manner;
2) executing a demand response strategy, and generating an operation regulation and control instruction based on an operation regulation and control strategy in an operation regulation and control strategy library; (for a single water pump unit, the actual power consumption is influenced by the flow, so the demand response strategy relates to the flow of the water pump in the starting and stopping time period and each time period in the starting state; for a drainage and irrigation system which is formed by connecting a plurality of water pump units in parallel and can independently regulate each water pump, the establishment of the response strategy needs to comprehensively consider the starting and stopping time periods and the flow of each time period of the plurality of water pumps, so the response condition of the whole system is optimal)
3) Recording the starting time and the ending time of the demand response, and the electric parameters, the environmental parameters and the running state parameters of the electric power irrigation and drainage facility in the demand response process, encrypting the recorded information, and sending the encrypted information to the demand response server.
The demand response policy includes response participation object information, response object operational state information, and response scheduling information.
Aiming at price type demand response and incentive type demand response, the corresponding demand response strategies are divided into the following conditions according to the principle that the influence on crops in irrigation areas cannot be generated:
for the electric irrigation and drainage facility only comprising a single water pump unit, firstly confirming the working state of the water pump unit in a demand response time period, dividing the demand response time period according to the operation necessity and emergency degree of the water pump unit, and preferentially shutting down or reducing the flow rate in a non-necessary operation time period when the load is reduced;
for the electric power drainage and irrigation facility aggregated by at least two water pump units, on the premise of meeting the requirement of demand response, the water pump units are selected to be the units needing response according to the operation necessity and the emergency degree in each demand response time period, the specific operation is that unnecessary operation water pump units are preferentially selected when the required load is reduced, emergency water pump units are preferentially selected when the required load is absorbed, and finally the response load is determined. For example, after receiving the load reduction command, if a certain unit must keep normal operation at a certain time, when a strategy at the time is formulated, the load reduction task is distributed to other units to ensure the unit to operate normally.
The operation regulation and control strategy comprises the steps of regulating the flow of the water pump unit by using the frequency conversion device and starting and stopping the whole water pump unit:
(1) utilize frequency conversion device to adjust the flow of water pump unit:
for a water pump dragging motor provided with a frequency conversion device, the running power of the motor is influenced by the flow of the water pump, so that the running power of a unit can be adjusted by controlling the flow. The frequency conversion device controls the frequency of the frequency converter according to the flow set for the unit, automatically changes the rotating speed of the water pump motor, and finally achieves the purpose of adjusting the running power of the unit.
(2) Starting and stopping the whole unit:
the operation regulation and control strategy has large and quick load variation, and larger instantaneous impact current appears for a unit without a frequency conversion device, which may influence the power grid.
The operation regulation and control strategy integrates two strategies of time-interval regulation and control of a single water pump unit and time-interval combined regulation and control of a plurality of water pump units;
the component time interval regulation and control of a single water pump unit refers to the regulation of the starting and stopping states or flow rates of the same water pump unit in each time interval according to different operation necessities of the water pump unit in each time interval.
The time-interval combined regulation and control of the multiple water pump units refers to that the optimal integral response condition is taken as a target for an electric power drainage and irrigation system consisting of multiple units, unnecessary operation units are preferentially selected to be shut down when load reduction is needed, and the influence on the drainage and irrigation effect is reduced;
the system can be used for responding a renewable energy consumption command issued by a demand response server, and for an electric power drainage and irrigation system aggregated by a plurality of water pumps, in order to avoid causing other economic losses on the premise of meeting the response requirement, the units are sorted at all times according to the operation necessity and emergency degree, and the emergency units are preferentially selected to be started.
Meanwhile, in the demand response execution process, relevant parameters of the electric power drainage and irrigation facility are collected in real time and are sent to a user control system or a monitoring system of a demand response execution mechanism and the like.
Finally, it should be noted that: the above embodiments are only intended to illustrate the technical solution of the present invention and not to limit the same, and a person of ordinary skill in the art can make modifications or equivalents to the specific embodiments of the present invention with reference to the above embodiments, and such modifications or equivalents without departing from the spirit and scope of the present invention are within the scope of the claims of the present invention as set forth in the claims.
Claims (1)
1. A demand response regulation and control method applied to an electric power irrigation and drainage facility is characterized in that the method is realized based on a demand response regulation and control device applied to the electric power irrigation and drainage facility;
the device comprises a microprocessor module, a communication module, a safety module, an interface module, a data acquisition module, a data storage module, a real-time clock module, a watchdog module and a power management module;
the communication module, the safety module, the interface module, the data acquisition module, the data storage module, the real-time clock module and the watchdog module are all in bidirectional connection with the microprocessor module, and the power management module is simultaneously in unidirectional connection with the microprocessor module and the interface module;
the microprocessor module is based on a demand response strategy in the demand response strategy library, matches an operation regulation strategy in the operation regulation strategy library and further generates an operation regulation instruction;
the communication module is communicated with the demand response server and the user mobile terminal through a communication network, sends the electricity consumption information of the power drainage and irrigation facility to the demand response server and the user mobile terminal, receives the electricity price information and the incentive information sent by the demand response server, and simultaneously receives a user control instruction sent by the user mobile terminal;
the data acquisition module is used for acquiring the running state parameters of the electric power irrigation and drainage facility, monitoring the acquired running state parameters and measuring the electric parameters and the environmental parameters of the electric power irrigation and drainage facility;
the electrical parameters comprise electrical parameters of each host and electrical parameters of related component parts;
the environmental parameters comprise soil humidity, water level and temperature;
the data storage module is internally provided with a demand response strategy library and an operation regulation and control strategy library which are used for storing basic information, operation state parameters, electric parameters, environment parameters and historical data of the electric power irrigation and drainage facility;
the basic information comprises the number, the address, the user telephone and the power supply priority of the electric power irrigation and drainage facility;
the demand response server distinguishes and searches the electric power irrigation and drainage facilities by calling and matching the basic information of the electric power irrigation and drainage facilities;
the safety module is used for verifying the legality of the running state parameters, the electric parameters and the environment parameters of the electric power irrigation and drainage facilities collected by the data collection module, encrypting the feedback signals and keeping the basic information of the user secret, so that the safety of the basic information of the user is ensured, and the effect of protecting the privacy of the user is achieved;
the microprocessor module completes the issuing of an operation regulation instruction through an interface module, and the interface module comprises a digital interface, an analog interface, RJ45, RS232 and RS 485;
the analog interface collects analog signals, processes the collected module signals, and then generates and outputs analog control signals;
the digital interface acquires digital signals, is used for judging the running state of each water pump unit in the electric power irrigation and drainage facility and then generates and outputs digital control signals;
the real-time clock module provides accurate time for the device, prevents the occurrence of wrong operation time interval of the electric power irrigation and drainage facility and ensures the normal execution of an operation regulation and control strategy;
the watchdog module is used for monitoring whether the device normally operates;
the power management module is responsible for managing and distributing the electric energy of the device;
the user mobile terminal comprises a smart phone and a tablet personal computer, the user remotely monitors the operation state of the electric power drainage and irrigation facility in real time through the user mobile terminal, and when the user refuses to regulate and control the electric power drainage and irrigation facility according to the operation regulation and control strategy, the user issues a manual control instruction, and when the manual control instruction issued by the user conflicts with the operation regulation and control instruction issued by the microprocessor module, the electric power drainage and irrigation facility operates according to the manual control instruction issued by the user; the method comprises the following steps:
receiving the demand response event information and judging the demand response type;
matching corresponding demand response strategies according to different demand response categories;
executing an operation regulation strategy according to a demand response strategy;
the receiving the demand response event information and the judging the demand response type specifically include:
receiving demand response event information sent by a demand response server;
judging a demand response type according to the demand response event information, wherein the demand response type comprises incentive type demand response and electricity price type demand response;
the matching of the corresponding demand response strategies according to the different demand response categories specifically includes:
if the demand response type is an excitation type demand response, firstly receiving and analyzing a load reduction signal or a renewable energy consumption signal, and then matching a corresponding demand response strategy according to the excitation type demand response;
if the demand response type is the electricity price demand response, firstly receiving an electricity price signal, and then matching a corresponding demand response strategy according to the electricity price demand response;
the matching of the corresponding demand response strategies according to the different demand response categories comprises:
if the demand response type is an excitation type demand response, acquiring electric parameters, environmental parameters and running state parameters of the electric power drainage and irrigation facility, then determining the response grade and the response capacity, uploading a feedback signal, finally judging whether the demand response event requirement is met, if the demand response event requirement is met, sending a confirmation signal by a demand response server, and if the demand response event requirement is not met, continuously receiving and analyzing a load reduction signal or a renewable energy consumption signal and executing subsequent operation;
if the demand response type is electricity price demand response, acquiring the electricity parameters, environment parameters and running state parameters of the electric power drainage and irrigation facility, then determining the response grade and the response capacity, uploading a feedback signal, and issuing a confirmation signal by the demand response server according to the feedback signal;
the judging whether the requirement of the demand response event is met specifically includes:
uploading a load reduction plan or a renewable energy consumption plan to a demand response server, and issuing signals by the demand response server according to the summary result, wherein the conditions are as follows:
1) if the summary result meets the requirement of the demand response event, the demand response server sends a confirmation signal;
2) if the summary result does not meet the requirement of the demand response event, the demand response server issues a signal for reformulating the demand response strategy, continues to receive and analyze the load reduction signal or the renewable energy consumption signal, re-matches the demand response strategy and feeds back the demand response strategy until the summary result meets the requirement of the demand response event, and at the moment, the demand response server issues a confirmation signal;
the executing the operation regulation and control strategy according to the demand response strategy specifically comprises:
receiving a confirmation signal sent by a demand response server;
executing an operation regulation strategy according to the demand response strategy and the confirmation signal;
after executing the operation regulation and control strategy according to the demand response strategy, the method comprises the following steps:
judging whether the demand response belongs to the emergency demand response or not according to the response grade; if the emergency demand response does not belong to the emergency demand response, the user selects to carry out load control in a manual mode or an automatic mode; if the emergency demand response is met, the user needs to perform load control in an automatic mode;
executing a demand response strategy, and generating an operation regulation and control instruction based on an operation regulation and control strategy in an operation regulation and control strategy library;
recording the starting time and the ending time of demand response, and the electric parameters, the environmental parameters and the running state parameters of the electric power irrigation and drainage facility in the demand response process, encrypting the recorded information, and sending the encrypted information to a demand response server;
the step of selecting to perform load control in a manual mode or an automatic mode by the user specifically comprises the following steps:
if the user selects an automatic mode to carry out load control, automatically controlling the start and stop of each water pump unit according to an operation regulation strategy;
if the user selects a manual mode to carry out load control, the user regulates and controls the electric power irrigation and drainage facility according to the execution result of the demand response strategy and the operation regulation and control strategy;
the demand response strategy comprises response participation object information, response object running state information and response time arrangement information;
aiming at price type demand response and incentive type demand response, the corresponding demand response strategies are divided into the following conditions according to the principle that the influence on crops in irrigation areas cannot be generated:
for the electric irrigation and drainage facility only comprising a single water pump unit, firstly confirming the working state of the water pump unit in a demand response time period, dividing the demand response time period according to the operation necessity and emergency degree of the water pump unit, and preferentially shutting down or reducing the flow rate in a non-necessary operation time period when the load is reduced;
for the electric power irrigation and drainage facility aggregated by at least two water pump units, on the premise of meeting the requirement of demand response, the water pump units are selected to be the units needing response according to the operation necessity and the emergency degree in each demand response time period, the specific operation is that unnecessary operation water pump units are preferentially selected when the required load is reduced, emergency water pump units are preferentially selected when the required load is reduced, and finally the response load is determined;
the operation regulation and control strategy comprises the steps of regulating the flow of the water pump unit by using the frequency conversion device and starting and stopping the whole water pump unit.
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| CN114740764A (en) * | 2021-08-20 | 2022-07-12 | 百倍云(浙江)物联科技有限公司 | Intelligent agricultural greenhouse edge cloud cooperative synchronous control system and control method thereof |
| CN113794285A (en) * | 2021-10-22 | 2021-12-14 | 成都汉度科技有限公司 | Intelligent flexible regulation and control method for agricultural motor-pumped well cluster |
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