CN113937788B - Power load side resource scheduling method and system - Google Patents
Power load side resource scheduling method and system Download PDFInfo
- Publication number
- CN113937788B CN113937788B CN202111181831.XA CN202111181831A CN113937788B CN 113937788 B CN113937788 B CN 113937788B CN 202111181831 A CN202111181831 A CN 202111181831A CN 113937788 B CN113937788 B CN 113937788B
- Authority
- CN
- China
- Prior art keywords
- load
- frequency modulation
- power grid
- capacity
- user
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 36
- 230000008859 change Effects 0.000 claims abstract description 8
- 230000004044 response Effects 0.000 claims description 89
- 230000005611 electricity Effects 0.000 claims description 25
- 230000000694 effects Effects 0.000 claims description 10
- 238000004590 computer program Methods 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 6
- 238000011084 recovery Methods 0.000 claims description 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 5
- 238000010248 power generation Methods 0.000 claims description 4
- 238000003860 storage Methods 0.000 claims description 4
- 238000007726 management method Methods 0.000 description 33
- 230000006870 function Effects 0.000 description 25
- 238000011156 evaluation Methods 0.000 description 12
- 238000012544 monitoring process Methods 0.000 description 11
- 238000011161 development Methods 0.000 description 7
- 238000004458 analytical method Methods 0.000 description 6
- 238000004364 calculation method Methods 0.000 description 6
- 230000003993 interaction Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 230000008520 organization Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000010076 replication Effects 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- H02J3/003—Load forecast, e.g. methods or systems for forecasting future load demand
-
- 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
- H02J3/008—Circuit arrangements for ac mains or ac distribution networks involving trading of energy or energy transmission rights
-
- 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
-
- 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
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The invention discloses a power load side resource scheduling method and a power load side resource scheduling system, wherein the power load side resource scheduling method comprises the following steps: the dispatching center obtains the frequency modulation planning capacity value of the lower quarter/lower month of the power grid load side, the upper limit and the lower limit of quotation, the load resource capacity value reported by the user side and the declaration price; determining user information capable of participating in power grid frequency modulation according to the frequency modulation plan capacity value, the upper limit and the lower limit of quotation, the load resource capacity value reported by a user side and the declaration price; the dispatching center obtains real-time frequency change of the power grid side to obtain a load demand value of frequency modulation of the power grid load side; the dispatching center generates dispatching instructions of power grid frequency modulation according to the real-time load demand value of the power grid and the user information, and sends the dispatching instructions to the corresponding user side load control units; and the user side load control unit generates a return load signal after finishing the scheduling command, wherein the return load signal is used for indicating the execution basis of the user side load resource to participate in the frequency modulation of the power grid.
Description
Technical Field
The disclosure belongs to the field of grid frequency modulation, and particularly relates to a power load side resource scheduling method and system.
Background
At present, clean energy gradually replaces fossil energy, an energy structure is generally pushed towards the direction of clean low carbon, but new energy power generation has intermittent characteristics, higher requirements are put forward on the adjustment capability of a system, and the energy storage technology is not applied on a large scale at present due to the single power supply structure in China, so that the flexibility of a power grid is insufficient. The new energy on the user side is largely emerging, the time and the space are indefinite, the tide is bidirectional, and the contradiction between the new energy consumption and the safe and stable operation of the power grid is increasingly outstanding.
The power demand response means that a user responds to price or excitation signals, changes the inherent habit power consumption mode, and achieves the purpose of reducing or pushing the power consumption load of a certain period to respond to power supply, so that the stable short-term behavior of the power grid is ensured. The traditional demand response is manually responded, timeliness and reliability cannot be guaranteed, meanwhile, a power grid company cannot acquire response signals of users, the demand response flexibility is low, the emergency processing time of a large power grid accident is in the order of minutes, and the emergency processing time of the order of minutes enables the power grid elastic bearing capacity and elastic recovery capacity to be poor under the condition that the power grid has serious faults, so that the scheme of applying load resources of millisecond and second is urgently needed at present on the load side of the power grid.
Disclosure of Invention
In order to solve the defects in the prior art, the present disclosure provides a power load side resource scheduling method and system, which can provide a long-term and automatically-responded millimeter-level load side frequency modulation service for a power grid.
In order to achieve the above purpose, the present disclosure adopts the following technical scheme:
the dispatching center obtains the frequency modulation planning capacity value of the lower quarter/lower month of the power grid load side, the upper limit and the lower limit of quotation, the load resource capacity value reported by the user side and the declaration price;
determining user information capable of participating in power grid frequency modulation according to the frequency modulation plan capacity value, the upper limit and the lower limit of quotation, the load resource capacity value reported by a user side and the declaration price;
the dispatching center obtains real-time frequency change of the power grid side to obtain a load demand value of frequency modulation of the power grid load side;
the dispatching center generates dispatching instructions of power grid frequency modulation according to the real-time load demand value of the power grid and the user information, and sends the dispatching instructions to the corresponding user side load control units;
the user side load control unit generates a return load signal after finishing the dispatching command, wherein the return load signal is used for indicating the execution basis of the user side load resource to participate in the power grid frequency modulation;
and the dispatching center stores the return load signal and issues formal frequency modulation settlement with the month as a period in a mode of clearing the moon.
Further, the method further comprises the following steps: and the dispatching center stores the return load signal and issues formal frequency modulation settlement with the month as a period in a mode of clearing the moon.
Further, the determining the user information available for participating in the frequency modulation of the power grid according to the frequency modulation plan capacity value, the upper limit and the lower limit of the quotation, the load resource capacity value reported by the user side and the declaration price specifically includes:
determining the users of which the reported capacity price is within the upper limit and the lower limit of the frequency modulation plan capacity price;
adopting a single-side bidding and marginal clearing mode, and sequentially clearing according to the price priority, time priority and capacity priority principles from low to high according to the capacity price declared by the user side until the capacity of the last user side in clearing is larger than the formulated capacity plan requirement value; and the sum of all the load capacity values reported by the clearing users is the total load capacity value which can participate in the frequency modulation of the power grid.
Further, the dispatching center generates dispatching instructions of power grid frequency modulation according to the real-time load demand value of the power grid and the user information, and sends the dispatching instructions to the corresponding user side load control units; the method comprises the following steps:
when the power grid system fails and the power grid frequency is lower than 49.25Hz, the dispatching center obtains the load demand value of power grid frequency modulation according to the obtained power grid frequency information, and distributes the load demand value according to the principle that the load capacity value reported by each determined power grid frequency modulation participatable user accounts for the total load capacity value participatable power grid frequency modulation, and sends a power grid frequency modulation instruction to each user side control unit, and the user side control unit controls the user side to automatically cut off the load according to the received power grid frequency modulation instruction;
when the power grid system is in fault recovery, the dispatching center sends power grid dispatching instructions to each determined user side control unit capable of participating in power grid frequency modulation according to the obtained power grid frequency information, and the user side control unit controls the intelligent electric meter on the user side to automatically put into load according to the received power grid dispatching instructions, so that the original state is recovered.
Further, the user side load control unit generates a return load signal after completing the scheduling command, specifically: and for the actual response effect when the daily frequency is lower than 49.25Hz, returning a load removal signal through the load control module, and returning the load removal signal as a basis for judging and executing.
Further, the frequency modulation settlement specifically comprises: r=r Capacity of +R Electric energy +R Examination and check Wherein R is total frequency modulation cost, R Capacity of For the cost of frequency modulation capacity; r is R Electric energy The cost of the frequency modulation electric energy is; r is R Examination and check The cost is checked for frequency modulation.
Further, said R Capacity of The cost of the frequency modulation capacity is as follows: r is R Capacity of ＝Q Winning capacity ×P Price of capacity Wherein Q is Winning capacity To participate in frequency modulation of electric networkA user side load capacity value; p (P) Price of capacity The price is cleared for the marginal.
Further, said R Electric energy The frequency modulation electric energy cost is as follows: r is R Electric energy ＝∑(Q Effective response electric quantity, t ×P Real-time load side unified electricity price, t X N), wherein Q Effective response electric quantity, t Is the actual effective response electric quantity; p (P) Real-time load side unified electricity price, t And unifying electricity prices for the real-time market load side, wherein N is a settlement execution multiple.
Further, said R Examination and check The frequency modulation checking cost is as follows:wherein R is Executing electric energy The cost of electrical energy for the execution period; t (T) Execution of For the post-call execution period; t (T) Calling To invoke a total period, i.e., the sum of the executed period and the unexecuted period.
In another embodiment, a power load side resource scheduling system is disclosed, comprising:
a dispatching center configured to receive a frequency modulation plan capacity value of a lower quarter/lower month of a load side of a power grid, upper and lower limits of quotation, and a load resource capacity value and a declaration price reported by a user side; determining user information capable of participating in power grid frequency modulation according to the frequency modulation plan capacity value, the upper limit and the lower limit of quotation, the load resource capacity value reported by a user side and the declaration price; the method is also used for receiving the real-time frequency change of the power grid side to obtain the load demand value of the frequency modulation of the power grid load side; generating a dispatching instruction of power grid frequency modulation according to a real-time load demand value of a power grid and user information, and sending the dispatching instruction to a corresponding user side load control unit; the load information is also used for receiving the load information returned by the load unit at the user side;
and the user side load control unit is configured to execute the dispatching instruction sent by the dispatching center, generate load return information and send the load return information to the dispatching center, and perform frequency modulation settlement according to the load return information.
The beneficial effects of the present disclosure are:
the power load side dispatching method provides long-term and automatically-responded millisecond-level load side frequency modulation service for the power grid; the accident emergency treatment time of the large power grid is improved from the original minute level to the millisecond level, and the elastic bearing capacity and the elastic recovery capacity of the power grid under the serious fault condition of the large power grid are obviously enhanced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate and explain the exemplary embodiments of the disclosure and together with the description serve to explain the disclosure, and do not constitute an undue limitation on the disclosure.
Fig. 1 is a flow chart provided by an embodiment of the present disclosure.
Detailed Description
The disclosure is further described below with reference to the drawings and examples.
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the present disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments in accordance with the present disclosure. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
Example 1
As shown in fig. 1, a power load side resource scheduling method of the present embodiment includes:
(1) The dispatching center obtains the frequency modulation planning capacity value of the lower quarter/lower month of the power grid load side, the upper limit and the lower limit of quotation, the load resource capacity value reported by the user side and the declaration price;
(2) Determining user information capable of participating in power grid frequency modulation according to the frequency modulation plan capacity value, the upper limit and the lower limit of quotation, the load resource capacity value reported by a user side and the declaration price;
(3) The dispatching center obtains real-time frequency change of the power grid side to obtain a load demand value of frequency modulation of the power grid load side;
(4) The dispatching center generates dispatching instructions of power grid frequency modulation according to the real-time load demand value of the power grid and the user information, and sends the dispatching instructions to the corresponding user side load control units;
(5) The user side load control unit generates a return load signal after finishing the dispatching command, wherein the return load signal is used for indicating the execution basis of the user side load resource to participate in the power grid frequency modulation;
(6) And the dispatching center stores the return load signal and issues formal frequency modulation settlement with the month as a period in a mode of clearing the moon.
For step (1), specifically: the power company establishes the upper and lower limits of the frequency modulation plan load capacity demand value and capacity quotation of the next month/next quarter, and issues the upper and lower limits of the capacity price of the established capacity demand value and capacity price and sends the issued upper and lower limits to the dispatching center; according to the issued frequency modulation plan capacity value and the upper and lower limits of quotation, the user side reports the load capacity value and the declaration price;
for the step (2), specifically, determining user information available for participating in power grid frequency modulation according to a frequency modulation plan capacity value, upper and lower limits of quotation, a load resource capacity value reported by a user side and a declaration price; the method comprises the following steps:
firstly, determining the users of which the reported capacity price is within the upper and lower limits of the capacity price formulated by the electric company; and then, adopting a single-side bidding and marginal clearing mode, and sequentially clearing according to the principles of price priority, time priority and capacity priority from low to high according to the declared capacity price of the user side until the capacity of the last user side of clearing is larger than the formulated capacity plan demand value, wherein the price reported by the last cleared user side is taken as the marginal clearing price.
All clear users determined according to the mode are used as users capable of participating in power grid frequency modulation, and the sum of the load capacity values reported by all clear users is the total load capacity value capable of participating in power grid frequency modulation.
For the step (3), the power grid dispatching center calculates and obtains a load demand value of power grid side load frequency modulation according to the real-time change condition of the power grid side frequency;
for the step (4), the dispatching center generates dispatching instructions of power grid frequency modulation according to the real-time load demand value of the power grid and the user information, and sends the dispatching instructions to the corresponding user side load control units; the method comprises the following steps:
the power grid dispatching center sends the obtained power grid frequency modulation load demand value to each user side according to the principle that the determined proportion of the load capacity value of the users capable of participating in frequency modulation to the total load capacity value capable of participating in frequency modulation is distributed, wherein the dispatching command comprises the load demand value;
specifically, when the power grid system fails and the power grid frequency is lower than 49.25Hz, the dispatching center obtains a load demand value of power grid frequency modulation according to the obtained power grid frequency information, and distributes the load demand value according to the principle that each determined load capacity value capable of participating in power grid frequency modulation is the proportion of the total load capacity value capable of participating in power grid frequency modulation, which is reported by a user, and sends a power grid frequency modulation instruction to each user side control unit, and the user side control unit controls the user side to automatically cut off the load according to the received power grid frequency modulation instruction;
when the power grid system is in fault recovery, the dispatching center sends power grid dispatching instructions to each determined user side control unit capable of participating in power grid frequency modulation according to the obtained power grid frequency information, and the user side control unit controls the intelligent electric meter on the user side to automatically put into load according to the received power grid dispatching instructions, so that the original state is recovered.
For the step (5), after the user side load control unit completes the dispatching command, generating a return load signal, wherein the return load signal is used for indicating the execution basis of the user side load resource to participate in the frequency modulation of the power grid; the method comprises the following steps:
after the user side control unit finishes the dispatching command, the load control module automatically returns a load removal signal, and the returned load removal signal is used as a basis for the user side to actually execute power grid frequency modulation.
And (3) for the step (6), the dispatching center stores the return load signal and issues formal frequency modulation settlement with the month as a period in a mode of day-to-month settlement.
The method comprises the following steps: and for the actual response effect when the day frequency is lower than 49.25Hz, returning a load removal signal through the load control module, and returning the load removal signal as a judgment execution basis.
The frequency modulation settlement specifically comprises the following steps:
R＝R capacity of +R Electric energy +R Examination and check
Wherein R is total frequency modulation cost, R Capacity of For the cost of frequency modulation capacity; r is R Electric energy The cost of the frequency modulation electric energy is; r is R Examination and check The cost is checked for frequency modulation. There is no load call in the planned tuning period, the total tuning cost only includes tuning capacity cost, and the load call occurs in the planned tuning period, and the total tuning cost includes tuning capacity cost, electric energy cost and checking cost.
R Capacity of ＝Q Winning capacity ×P Price of capacity
Wherein: q (Q) Winning capacity The method is characterized in that the method is a user side load capacity value which can participate in power grid frequency modulation; p (P) Price of capacity The price is cleared for the marginal.
R Electric energy ＝∑(Q Effective response electric quantity, t ×P Real-time load side unified electricity price, t ×N)
Wherein: q (Q) Effective response electric quantity, t Is the actual effective response electric quantity; p (P) Real-time load side unified electricity price, t And unifying electricity prices for the real-time market load side, wherein N is a settlement execution multiple.
And according to the proportion of the non-execution time period of the current month capacity of the user side to the called time period, deducting and checking the compensation cost.
Wherein:R executing electric energy The cost of electrical energy for the execution period; t (T) Execution of For the post-call execution period; t (T) Calling To invoke a total period, i.e., the sum of the executed period and the unexecuted period.
By taking the user side resource as the power grid load side frequency modulation load resource, the second response speed load resource is provided for power grid load side frequency modulation, and the user side is utilized to actively participate in power grid frequency modulation, wherein the frequency modulation cost allocated by each user participating in power grid frequency modulation is as follows:
wherein i represents the ith user, R Total cost of For the total cost of frequency modulation, F j And (3) the month electricity consumption of the jth user, wherein M is the total number of users in the month, k is the allocation ratio of the users to the power plant, and k is the fraction of 0-1.
Wherein j represents the j-th power plant, F j And (5) the monthly online electric quantity of the jth power plant, wherein M is the total number of the online power generation power plants in the current month.
Example two
An automatic load response frequency modulation system for power load side resources of the embodiment includes:
a dispatching center configured to receive a frequency modulation plan capacity value of a lower quarter/lower month of a load side of a power grid, upper and lower limits of quotation, and a load resource capacity value and a declaration price reported by a user side; determining user information capable of participating in power grid frequency modulation according to the frequency modulation plan capacity value, the upper limit and the lower limit of quotation, the load resource capacity value reported by a user side and the declaration price; the method is also used for receiving the real-time frequency change of the power grid side to obtain the load demand value of the frequency modulation of the power grid load side; generating a dispatching instruction of power grid frequency modulation according to a real-time load demand value of a power grid and user information, and sending the dispatching instruction to a corresponding user side load control unit; the system is also used for receiving load information returned by the load unit at the user side and performing frequency modulation settlement according to the load return information;
and the user side load control unit is configured to execute the scheduling instruction sent by the scheduling center, generate load return information and send the load return information to the scheduling center.
The dispatching center comprises a response operation management module, a demand response interaction module and a basic supporting module.
The response operation management module is used for providing the functions of user resource management, demand response organization, response subsidy management, response effect evaluation, information release and operation monitoring, and forming a whole flow operation including user management, market organization, market clearing and market evaluation demand response, and supporting the healthy and orderly development of demand response.
The user resource management comprises five functions of user file management, resource equipment management, adjustable resource library management, resource real-time monitoring and user base line management, and is used for maintaining basic information maintenance, equipment information and electricity consumption monitoring of users participating in demand response markets and providing support for execution in demand response.
The user archive management comprises maintenance of information such as business information, marketing user numbers, reporting capacity, maximum demand, electricity utilization property, electricity utilization addresses, electricity utilization scale, upper-level transformer substations, contacts, contact addresses and the like, and supports functions of authentication, auditing, archiving and the like of user basic information.
The resource equipment manages and maintains the adjustable resources of the user, including information such as resource type, rated capacity, adjustable capacity, adjustment mode and the like, and provides resource meter information configuration for resource information acquisition and historical load information statistics functions.
The adjustable resource library management provides real-time monitoring of user and resource operation data, including checking of information such as current, voltage, power and frequency, and checking of historical operation information.
The user baseline management maintains baselines (load baselines/adjustment baselines) of market subjects, including baseline compiling, auditing and issuing, and supports importing and exporting of baseline data in different periods and intelligent statistical calculation.
The demand response organization takes the execution in the demand response as a core and comprises the contents of market demand management, response declaration tracking, response clearing management, response event management, response plan management, demand response tracking and the like.
Wherein, market demand management provides market demand information management functions, compiles and maintains market response demand information, including demand constraints, results of deals, market clearance, etc.
The response reporting tracking provides functions of checking, tracking, counting and the like of the reporting information of the demand response user, and is used for maintaining the reporting information of the user and tracking the reporting state of the user in real time.
The system comprises a user management module, a user management module and a user management module, wherein the user management module responds to the clearing management module to provide functions of calculating, auditing, winning bid and the like for reporting information submitted by the user, and issues winning bid information of the user.
The response event management provides a demand response event execution management function, which comprises the functions of response event demand compiling, auditing, issuing, user response feedback tracking and the like.
In the execution process of the demand response event, the demand response tracking provides viewing tracking for actual operation information of single user and market overall aggregation, and deviation analysis and warning are carried out on planning information.
And the response subsidy management comprises actual response calculation and subsidy settlement management.
The actual response calculation provides calculation of the actual response electric quantity of the user after the execution of the demand response event is completed, statistics of the user execution completion quantity is carried out according to the event, month and year, and the response electric quantity downloading and importing functions are provided.
The subsidy settlement management provides actual response electric quantity, execution completion rate, accumulated response quantity, accumulated qualification rate and subsidy amount calculation for the user participating in the demand response event, and provides whole course tracking of the subsidy state of the user.
The response effect evaluation is used for analyzing the electricity utilization performance of the user and completing the rating evaluation of the user aiming at the actual electricity utilization condition and the response completion condition of the user, and comprises the functions of load characteristic analysis, response event effect evaluation, user response effect evaluation and the like.
The load characteristic analysis is to analyze load peaks Gu Chafen of different dimensions such as day, week, month, etc. for actual electricity loads in a user history period.
The method comprises the steps of carrying out comprehensive evaluation on the execution effect of a demand response event according to the evaluation of the effect of the response event, wherein the comprehensive evaluation comprises the evaluation of indexes such as the total number of the demand response event, the number of large user participators, the number of load aggregator participators, the total target capacity, the total execution capacity, the execution completion rate, the high completion rate occupation ratio industry, the electricity charge saving benefit and the like;
the user response effect evaluation evaluates indexes such as the participation times, the average response completion rate, the actual maximum adjustment capacity, the average adjustment capacity and the like through analysis of the load characteristics and the actual response results of the user, and performs rating division on the response capacity of the user.
And (3) operation monitoring, namely counting the actual operation process of the system and the access of a user of the system, and providing a visual large screen display function. The system comprises functions of platform operation overview, market operation monitoring and the like.
The platform operation overview analyzes and counts users participating in demand response from industries, electricity types and distribution cities, performs statistical analysis on demand response development conditions, and provides clear display functions.
The market operation monitoring carries out real-time monitoring analysis on the response development condition of the actual demand on the same day, and comprises planning capacity, actual response quantity, response time length, participating users and the like.
And the information release management provides the compiling and release of demand response notice information, and comprises market development condition notification and market participation condition notification.
The market development condition notification provides public information release before market development and comprises functions of message compiling, auditing, release and the like.
The public information release after market development is provided by the market participation condition notification, and the public information release comprises functions of message compiling, auditing, release and the like.
The demand response interaction module is mainly used for supporting full-flow operations such as demand response user participation demand response reporting, instruction receiving, operation checking, evaluation checking and the like, and comprises functions such as user home page, my equipment, my contract, collaborative planning, clear result checking, actual response tracking, my subsidy, resource monitoring, message notification checking, user personal center and the like.
The user home page mainly provides a user's plan on the same day, a real-time power curve, a view of the running power curve of each resource, a response condition on the same day and a view of monthly benefits, and provides a navigation function for quickly processing various services.
The equipment provides the information of checking and maintaining files of various adjustable resources, including information such as resource names, table numbers, measurement and regulation parameters, operation modes thereof and the like for electric power users, and provides the functions of reporting, checking and changing application of the information of the resource files.
The My contract provides the functions of checking, editing, uploading, downloading and the like of the demand response contract for the user.
The collaborative planning provides a unified and aggregated external reporting curve for a collaborative planning of user establishment management resources, and comprises the functions of planning, adjusting, auditing, issuing and confirming the collaborative planning, and supports planning replication, load prediction, intelligent summarization, income estimation, optimization calculation, import and export.
And the clearing result viewing provides the user with the view of the clearing result, and can search and inquire according to time and the clearing type.
And the actual response tracking provides tracking comparison between actual running conditions and planning conditions for users to check, and performs corresponding deviation analysis.
The My subsidy provides the actual response completion amount, standard reaching condition and response subsidy in the process of checking the single demand response event by a user, and provides the subsidy and response amount statistics according to the time dimension.
And the resource monitoring provides a user with a view of the total, each resource electricity utilization real-time load curve and the historical load curve.
The message notification viewing provides the functions of the user for viewing the bulletin information, the notification information, the market demand information and the like which are issued by the demand response.
The user personal center provides the functions of personal information maintenance and enterprise information maintenance of the user. The personal information is information such as a personal account number, a contact way, a system password, personalized settings and the like, and the enterprise information is enterprise information for providing a power user with the function of checking and changing applications.
Base support module comprising interface services and public services
The interface service provides interface interaction service between the system and other external systems, and comprises a receiving real-time data interface and an interaction response interface, so that the collection of user power consumption information and the issuing of response instructions are realized. And providing a market demand information interface and a user information interface, and carrying out information interaction with the transaction system and the marketing system.
The public service provides basic supporting capability of system operation and meets the functional requirements of system login management, authority authentication, log recording, data authority division, service operation monitoring, flow management and the like.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The power load side resource scheduling method is characterized by comprising the following steps of:
the dispatching center obtains frequency modulation planning capacity values of the lower quarter and the lower month of the power grid load side, upper and lower quotation limits, load resource capacity values reported by the user side and declaration prices;
determining user information capable of participating in power grid frequency modulation according to the frequency modulation plan capacity value, the upper limit and the lower limit of quotation, the load resource capacity value reported by a user side and the declaration price;
the dispatching center obtains real-time frequency change of the power grid side to obtain a load demand value of frequency modulation of the power grid load side;
the dispatching center generates dispatching instructions of power grid frequency modulation according to the real-time load demand value of the power grid and the user information, and sends the dispatching instructions to the corresponding user side load control units;
the user side load control unit generates a return load signal after finishing the dispatching command, wherein the return load signal is used for indicating the execution basis of the user side load resource to participate in the power grid frequency modulation;
the dispatching center stores the return load signal and issues formal frequency modulation settlement with the month as a period in a solar clearing moon junction mode;
the dispatching center generates dispatching instructions of power grid frequency modulation according to the real-time load demand value of the power grid and the user information, and sends the dispatching instructions to the corresponding user side load control units; the method comprises the following steps:
when the power grid system fails and the power grid frequency is lower than 49.25Hz, the dispatching center obtains the load demand value of power grid frequency modulation according to the obtained power grid frequency information, and distributes the load demand value according to the principle that the load capacity value reported by each determined power grid frequency modulation participatable user accounts for the total load capacity value participatable power grid frequency modulation, and sends a power grid frequency modulation instruction to each user side control unit, and the user side control unit controls the user side to automatically cut off the load according to the received power grid frequency modulation instruction;
when the power grid system is in fault recovery, the dispatching center sends a power grid dispatching instruction to each determined user side control unit capable of participating in power grid frequency modulation according to the obtained power grid frequency information, and the user side control unit controls the intelligent electric meter of the user side to automatically put into load according to the received power grid dispatching instruction, so that the original state is recovered;
the frequency modulation settlement is specifically as follows: r=r Capacity of +R Electric energy +R Examination and check
Wherein R is total frequency modulation cost, R Capacity of For the cost of frequency modulation capacity; r is R Electric energy The cost of the frequency modulation electric energy is; r is R Examination and check Checking the cost for frequency modulation;
said R is Capacity of The cost of the frequency modulation capacity is as follows: r is R Capacity of ＝Q Winning capacity ×P Price of capacity Wherein Q is Winning capacity The method is characterized in that the method is a user side load capacity value which can participate in power grid frequency modulation; p (P) Price of capacity The price is cleared for the marginal;
said R is Electric energy The frequency modulation electric energy cost is as follows: r is R Electric energy ＝∑(Q Effective response electric quantity, t ×P Real-time load side unified electricity price, t X N), wherein Q Effective response electric quantity, t Is the actual effective response electric quantity; p (P) Real-time load side unified electricity price, t Unifying electricity prices for the real-time market load side, wherein N is a settlement execution multiple;
said R is Examination and check The frequency modulation checking cost is as follows:wherein R is Executing electric energy The cost of electrical energy for the execution period; t (T) Execution of For the post-call execution period; t (T) Calling For invoking the total period, i.e. the sum of the executed period and the unexecuted period;
by taking the user side resource as the power grid load side frequency modulation load resource, the second response speed load resource is provided for power grid load side frequency modulation, and the user side is utilized to actively participate in power grid frequency modulation, wherein the frequency modulation cost allocated by each user participating in power grid frequency modulation is as follows:
wherein i represents the ith user, R Total cost of For the total cost of frequency modulation, F j For the month electricity consumption of the jth user, M is the total number of users in the month, k is the allocation proportion of the users to the power plant, and k is the decimal of 0-1;
wherein j represents the j-th power plant, F j And (5) the monthly online electric quantity of the jth power plant, wherein M is the total number of the online power generation power plants in the current month.
2. The power load side resource scheduling method according to claim 1, wherein the determining the user information available for participating in the frequency modulation of the power grid according to the frequency modulation plan capacity value, the upper limit and the lower limit of the quotation, and the load resource capacity value and the declaration price reported by the user side is specifically as follows:
determining the users of which the reported capacity price is within the upper limit and the lower limit of the frequency modulation plan capacity price;
adopting a single-side bidding and marginal clearing mode, and sequentially clearing according to the price priority, time priority and capacity priority principles from low to high according to the capacity price declared by the user side until the capacity of the last user side in clearing is larger than the formulated capacity plan requirement value; and the sum of all the load capacity values reported by the clearing users is the total load capacity value which can participate in the frequency modulation of the power grid.
3. The power load side resource scheduling method according to claim 1, wherein the user side load control unit generates a return load signal after completing the scheduling command, specifically: and for the actual response effect when the daily frequency is lower than 49.25Hz, returning a load removal signal through the load control module, and returning the load removal signal as a basis for judging and executing.
4. A power load side resource scheduling system, comprising:
a dispatching center configured to receive frequency modulation plan capacity values of lower quarter and lower month of the power grid load side, upper and lower limits of quotation and load resource capacity values and declaration prices reported by a user side; determining user information capable of participating in power grid frequency modulation according to the frequency modulation plan capacity value, the upper limit and the lower limit of quotation, the load resource capacity value reported by a user side and the declaration price; the method is also used for receiving the real-time frequency change of the power grid side to obtain the load demand value of the frequency modulation of the power grid load side; generating a dispatching instruction of power grid frequency modulation according to a real-time load demand value of a power grid and user information, and sending the dispatching instruction to a corresponding user side load control unit; the system is also used for receiving load information returned by the load unit at the user side and performing frequency modulation settlement according to the load return information;
the dispatching center stores the return load signal and issues formal frequency modulation settlement with the month as a period in a solar clearing moon junction mode;
the user side load control unit is configured to execute the scheduling instruction sent by the scheduling center, generate load return information and send the load return information to the scheduling center;
the dispatching center generates dispatching instructions of power grid frequency modulation according to the real-time load demand value of the power grid and the user information, and sends the dispatching instructions to the corresponding user side load control units; the method comprises the following steps:
when the power grid system fails and the power grid frequency is lower than 49.25Hz, the dispatching center obtains the load demand value of power grid frequency modulation according to the obtained power grid frequency information, and distributes the load demand value according to the principle that the load capacity value reported by each determined power grid frequency modulation participatable user accounts for the total load capacity value participatable power grid frequency modulation, and sends a power grid frequency modulation instruction to each user side control unit, and the user side control unit controls the user side to automatically cut off the load according to the received power grid frequency modulation instruction;
when the power grid system is in fault recovery, the dispatching center sends a power grid dispatching instruction to each determined user side control unit capable of participating in power grid frequency modulation according to the obtained power grid frequency information, and the user side control unit controls the intelligent electric meter of the user side to automatically put into load according to the received power grid dispatching instruction, so that the original state is recovered;
the frequency modulation settlement is specifically as follows: r=r Capacity of +R Electric energy +R Examination and check
Wherein R is total frequency modulation cost, R Capacity of For the cost of frequency modulation capacity; r is R Electric energy The cost of the frequency modulation electric energy is; r is R Examination and check Checking the cost for frequency modulation;
said R is Capacity of The cost of the frequency modulation capacity is as follows: r is R Capacity of ＝Q Winning capacity ×P Price of capacity Wherein Q is Winning capacity The method is characterized in that the method is a user side load capacity value which can participate in power grid frequency modulation; p (P) Price of capacity The price is cleared for the marginal;
said R is Electric energy The frequency modulation electric energy cost is as follows: r is R Electric energy ＝∑(Q Effective response electric quantity, t ×P Real-time load side unified electricity price, t X N), wherein Q Effective response electric quantity, t Is the actual effective response electric quantity; p (P) Real-time load side unified electricity price, t To unify electricity prices for real-time market load sides, NPerforming multiple for settlement;
said R is Examination and check The frequency modulation checking cost is as follows:wherein R is Executing electric energy The cost of electrical energy for the execution period; t (T) Execution of For the post-call execution period; t (T) Calling For invoking the total period, i.e. the sum of the executed period and the unexecuted period;
by taking the user side resource as the power grid load side frequency modulation load resource, the second response speed load resource is provided for power grid load side frequency modulation, and the user side is utilized to actively participate in power grid frequency modulation, wherein the frequency modulation cost allocated by each user participating in power grid frequency modulation is as follows:
wherein i represents the ith user, R Total cost of For the total cost of frequency modulation, F j For the month electricity consumption of the jth user, M is the total number of users in the month, k is the allocation proportion of the users to the power plant, and k is the decimal of 0-1;
wherein j represents the j-th power plant, F j And (5) the monthly online electric quantity of the jth power plant, wherein M is the total number of the online power generation power plants in the current month.
5. A computer readable storage medium having stored thereon a computer program, which when executed by a processor, implements the steps of a power load side resource scheduling method according to any of claims 1-3.
6. A processing device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the steps of a power load side resource scheduling method according to any one of claims 1-3 when the program is executed by the processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111181831.XA CN113937788B (en) | 2021-10-11 | 2021-10-11 | Power load side resource scheduling method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111181831.XA CN113937788B (en) | 2021-10-11 | 2021-10-11 | Power load side resource scheduling method and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113937788A CN113937788A (en) | 2022-01-14 |
| CN113937788B true CN113937788B (en) | 2024-02-02 |
Family
ID=79278667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111181831.XA Active CN113937788B (en) | 2021-10-11 | 2021-10-11 | Power load side resource scheduling method and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113937788B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114597921B (en) * | 2022-03-14 | 2022-08-23 | 长沙学院 | Energy storage power station power distribution method for frequency modulation of interconnected power grid subareas |
| CN116961011B (en) * | 2023-09-18 | 2024-01-12 | 国网山西省电力公司营销服务中心 | User side resource oriented regulation and control method, system, equipment and storage medium |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105760998A (en) * | 2016-02-16 | 2016-07-13 | 国电南瑞科技股份有限公司 | Frequency modulation resource calling optimization decision system introducing competition mechanism and method thereof |
| CN108734396A (en) * | 2018-05-16 | 2018-11-02 | 国网山东省电力公司电力科学研究院 | A kind of virtual plant method for optimizing scheduling bidded and provided multiple forms of energy to complement each other based on Demand-side |
| CN109492789A (en) * | 2018-06-26 | 2019-03-19 | 广东电网有限责任公司 | A kind of method and device of plan electricity and the decoupling clearing of market electricity |
| CN110400059A (en) * | 2019-07-05 | 2019-11-01 | 中国科学院电工研究所 | A kind of integrated energy system dominant eigenvalues control method |
| CN110544112A (en) * | 2019-08-13 | 2019-12-06 | 南方电网科学研究院有限责任公司 | Method and device for clearing regional frequency modulation market in consideration of renewable energy |
| CN111832824A (en) * | 2020-07-14 | 2020-10-27 | 国网电力科学研究院有限公司 | Electric power frequency modulation market trading clearing and settlement method, device and system |
| CN112766695A (en) * | 2021-01-12 | 2021-05-07 | 国网四川省电力公司经济技术研究院 | Balanced operation method of main and auxiliary combined system under participation of load aggregation main body |
-
2021
- 2021-10-11 CN CN202111181831.XA patent/CN113937788B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105760998A (en) * | 2016-02-16 | 2016-07-13 | 国电南瑞科技股份有限公司 | Frequency modulation resource calling optimization decision system introducing competition mechanism and method thereof |
| CN108734396A (en) * | 2018-05-16 | 2018-11-02 | 国网山东省电力公司电力科学研究院 | A kind of virtual plant method for optimizing scheduling bidded and provided multiple forms of energy to complement each other based on Demand-side |
| CN109492789A (en) * | 2018-06-26 | 2019-03-19 | 广东电网有限责任公司 | A kind of method and device of plan electricity and the decoupling clearing of market electricity |
| CN110400059A (en) * | 2019-07-05 | 2019-11-01 | 中国科学院电工研究所 | A kind of integrated energy system dominant eigenvalues control method |
| CN110544112A (en) * | 2019-08-13 | 2019-12-06 | 南方电网科学研究院有限责任公司 | Method and device for clearing regional frequency modulation market in consideration of renewable energy |
| CN111832824A (en) * | 2020-07-14 | 2020-10-27 | 国网电力科学研究院有限公司 | Electric power frequency modulation market trading clearing and settlement method, device and system |
| CN112766695A (en) * | 2021-01-12 | 2021-05-07 | 国网四川省电力公司经济技术研究院 | Balanced operation method of main and auxiliary combined system under participation of load aggregation main body |
Non-Patent Citations (1)
| Title |
|---|
| 考虑调频补偿效果的区域综合能源系统调频服务优化策略;马恒瑞;《电力系统自动化》;第3页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113937788A (en) | 2022-01-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Burger et al. | The efficiency and distributional effects of alternative residential electricity rate designs | |
| CN113937788B (en) | Power load side resource scheduling method and system | |
| US9052732B2 (en) | Aggregator, monitor, and manager of distributed micro-generators | |
| CN110633889A (en) | Regional spot market technical support system | |
| US11909210B2 (en) | Systems and methods for load management | |
| Lyon et al. | Market implications and pricing of dynamic reserve policies for systems with renewables | |
| Yan et al. | Future evolution of automated demand response system in smart grid for low-carbon economy | |
| CN115619439A (en) | Power load operation management system, device and method | |
| CN111966663A (en) | Multi-user-side comprehensive energy data service system | |
| Berl et al. | Integrating data centres into demand-response management: A local case study | |
| WO2002027639A1 (en) | System and method for energy usage curtailment | |
| CN116739208A (en) | Unified management system for power supply service | |
| Kokos et al. | Demand response strategy for optimal formulation of flexibility services | |
| CN104239413A (en) | Electric network data on-line analysis processing method | |
| CN111292127A (en) | Electricity selling management and control system | |
| Twitchell et al. | Planning Considerations for Energy Storage in Resilience Applications. Outcomes from the NELHA Energy Storage Conference's Policy and Regulatory Workshop | |
| Abrishambaf et al. | Aggregation of Consumers Participation in the Ramping of a Demand Response Event | |
| CN114004488A (en) | System for margin new energy electric power and adjustable load increment transaction | |
| Thomas et al. | Valuing resiliency from Microgrids: How end users can estimate the marginal value of resilient power | |
| Kahn et al. | New rate structures in communications | |
| CN117787641A (en) | Operation and maintenance resource scheduling method, device, equipment and storage medium | |
| CN118279088A (en) | Micro-grid distributed transaction management system and method based on blockchain | |
| Locsin | $1 Billion in outages planned | |
| Scherer et al. | How should power industry R and D be funded and managed | |
| CN113780853A (en) | Source network load storage cooperative interaction intelligent control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |