CN110362845B - Method and device for determining regional power market development planning mode - Google Patents
Method and device for determining regional power market development planning mode Download PDFInfo
- Publication number
- CN110362845B CN110362845B CN201910203824.1A CN201910203824A CN110362845B CN 110362845 B CN110362845 B CN 110362845B CN 201910203824 A CN201910203824 A CN 201910203824A CN 110362845 B CN110362845 B CN 110362845B
- Authority
- CN
- China
- Prior art keywords
- power
- sub
- regional
- market
- regional power
- 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
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/06—Electricity, gas or water supply
-
- 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
Abstract
The embodiment of the invention provides a method and a device for determining a regional power market development planning mode, wherein the method comprises the following steps: determining a development planning data model of the regional power grid according to parameters and planning information of power equipment in at least two sub-region power grids, wherein the regional power grid comprises at least two sub-region power grids; determining a constraint condition of the regional power market and a target application scene of the regional power market according to a development planning data model, wherein the constraint condition of the regional power market at least comprises the limitation of the transmission power between at least two sub-regional power grids; adding constraint conditions of the regional power market in the clearing models of at least two sub-region power grids to obtain the clearing models of the regional power market; and determining the power market development mode of the regional power grid according to the calculation result of the clearing model of the regional power market in the target application scene. The electric power market development mode determined by the embodiment of the invention can reduce the operation cost of the regional power grid.
Description
Technical Field
The invention relates to the technical field of power systems, in particular to a method and a device for determining a regional power market development planning mode.
Background
In the prior art, each sub-area power grid (e.g., provincial power grid) determines the power generation amount of each generator set, the power transmission amount of each transportation line, the power storage amount of an energy storage device, and the like in the sub-area according to the load demand and the power system stability constraint conditions in the sub-area.
With the economy of the electric power market, there are obvious differences in the power generation cost, the power generation amount, the power consumption amount, and the like in various regions, for example: the electricity generation cost of province a is low and the amount of electricity generation is large but the amount of electricity used is small, while the electricity generation cost of province B is high and the amount of electricity generation is small but the amount of electricity used is large. The generated energy of the province A is larger than the power consumption of the province A, so that the electricity waste is caused or the cost of the stored electricity is improved, the electricity generation cost of the province B is high, the generated energy of the province B is smaller than the power consumption of the province B, the lack of the electricity is caused, and even the stability of an electric power system is damaged.
Therefore, the problem that the operation cost of the power system is high in the development planning mode determining method which takes the sub-area power grid as the planning unit in the related technology can be known.
Disclosure of Invention
The embodiment of the invention provides a method and a device for determining a development planning mode of a regional power market, which are used for solving the problem that the operation cost of a power system is high in a development planning mode determining method taking a sub-regional power grid as a planning unit in the related art.
In order to solve the technical problem, the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a method for determining a regional power market development planning mode, including:
determining a development planning data model of a regional power grid according to parameters and planning information of power equipment in at least two sub-region power grids, wherein the regional power grid comprises the at least two sub-region power grids;
determining constraints of a regional power market and a target application scenario of the regional power market according to the development planning data model, wherein the constraints of the regional power market at least comprise the limitation of the transmission power between the at least two sub-region power grids;
adding constraint conditions of the regional power market in the clearing models of the at least two sub-region power grids to obtain the clearing models of the regional power market;
and determining the power market development mode of the regional power grid according to the calculation result of the clearing model of the regional power market in the target application scene.
In a second aspect, an embodiment of the present invention further provides a device for determining a regional power market development planning mode, where the device includes:
the system comprises a first determination module, a second determination module and a third determination module, wherein the first determination module is used for determining a development planning data model of a regional power grid according to parameters and planning information of power equipment in at least two sub-region power grids, and the regional power grid comprises the at least two sub-region power grids;
a second determining module, configured to determine, according to the development planning data model, a constraint condition of a regional power market and a target application scenario of the regional power market, where the constraint condition of the regional power market at least includes a limit of transmission power between the at least two sub-region power grids;
the increasing module is used for increasing the constraint conditions of the regional power market in the clearing model of the at least two sub-region power grids to obtain the clearing model of the regional power market;
and the third determining module is used for determining the power market development mode of the regional power grid according to the calculation result of the clearing model of the regional power market in the target application scene.
In a third aspect, an embodiment of the present invention further provides an electronic device, including: the system comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor executes the computer program to realize the steps of the regional power market development planning mode determination method provided by the embodiment of the invention.
In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements the steps in the method for determining a regional power market development planning mode provided by the embodiment of the present invention.
In the embodiment of the invention, a development planning data model of a regional power grid is determined according to parameters and planning information of power equipment in at least two sub-region power grids, wherein the regional power grid comprises the at least two sub-region power grids; determining constraints of a regional power market and a target application scenario of the regional power market according to the development planning data model, wherein the constraints of the regional power market at least comprise the limitation of the transmission power between the at least two sub-region power grids; adding constraint conditions of the regional power market in the clearing models of the at least two sub-region power grids to obtain the clearing models of the regional power market; and determining the power market development mode of the regional power grid according to the calculation result of the clearing model of the regional power market in the target application scene. Therefore, the power market development mode of the regional power grid is subjected to simulation calculation through the development planning data model of the regional power grid and the clearing model of the regional power market, and the power market development mode suitable for the regional power grid is determined according to the simulation calculation result, so that the regional power grid operates according to the power market development mode, and the operation cost of the regional power grid is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a flowchart of a method for determining a regional power market development planning mode according to an embodiment of the present invention;
fig. 2 is a flowchart of determining a power market development planning mode in a method for determining a regional power market development planning mode according to an embodiment of the present invention;
fig. 3 is a flowchart of another method for determining a regional power market development planning mode according to an embodiment of the present invention to determine a target application scenario;
fig. 4 is a structural diagram of a device for determining a regional power market development planning mode according to an embodiment of the present invention;
fig. 5 is a structural diagram of another regional power market development planning mode determining apparatus according to an embodiment of the present invention;
fig. 6 is a structural diagram of another device for determining a regional power market development planning mode according to an embodiment of the present invention;
fig. 7 is a structural diagram of another regional power market development planning mode determining apparatus according to an embodiment of the present invention;
fig. 8 is a block diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the embodiment of the invention, in view of the large area involved in the regional power market, the forms of the power resources are diversified, so that the regional power market has the following advantages compared with the sub-regional power market:
1. expensive capacity resources (such as electric quantity storage equipment, water storage power generation, mechanical energy storage power generation and the like) can be reduced;
2. the stability of the power system is improved (for example, when the power generation amount of the first sub-area power grid is insufficient, the power system can receive electric energy from the second sub-area power grid with sufficient power generation amount, so that the first sub-area power grid and the second sub-area power grid can achieve electric quantity balance at the same time);
3. reducing reserve capacity resources (for example, when the power generation amount of a hydropower plant in a certain sub-area power grid is small in winter, a thermal power plant with enough capacity needs to be built in the sub-area power grid to make up for the shortage of the power generation amount of the hydropower plant in winter, and after the regional power grid is applied, the electric energy generated by other sub-area power grids in the regional power grid can be used to make up for the shortage of the power generation amount of the hydropower plant in winter, so that the reserve capacity resources of thermal power generation equipment are reduced);
4. the economy of the power market is improved (for example, the regional power grid comprises a province A and a province B, wherein the province A uses less electricity but has rich water resources, so that the power generation cost of the province A is low, the province B consumes more electricity but has less power generation equipment, and the power generation cost of the total electricity can be reduced after the hydropower generation of the province A is applied to the province B through the market mechanism of the regional power market).
Therefore, the regional power market becomes the necessary development trend of the power market, however, the development of the power market has certain risks, and if larger holes exist in the designs such as the market development mode, the market reformation can be seriously affected, so that the research on the development planning of the power market is urgently needed. The method for determining the regional power market development planning mode in the embodiment of the invention can simulate the operation condition of a regional power grid in a planning period, thereby determining the power market development mode suitable for the regional power market according to the clearing model under the operation condition, and avoiding the problems of high operation cost or unstable power system caused by mismatching of the power market development mode and the regional power market.
In a specific implementation, the sub-area may be a provincial grid, and the regional grid may include at least two provincial grids, for example: northwest grid, north China grid, etc. Of course, according to different application environments, geographic environments, and the like, the sub-area power grid may also be a power grid governed by a scheduling area, and the area power grid may include at least two power grids governed by the scheduling area, and the like, which is not specifically limited herein.
It should be noted that the planning period may be any future time period, and may be set according to the needs of the user, for example: the year to be, month to be, etc., are not particularly limited.
Referring to fig. 1, fig. 1 is a flowchart of a method for determining a regional power market development planning mode according to an embodiment of the present invention. As shown in fig. 1, the method for determining the regional power market development planning mode may include the following steps:
And 102, determining a constraint condition of a regional power market and a target application scene of the regional power market according to the development planning data model, wherein the constraint condition of the regional power market at least comprises the limitation of the transmission power between the at least two sub-region power grids.
And 104, determining the power market development mode of the regional power grid according to the calculation result of the clearing model of the regional power market in the target application scene.
In a specific implementation, the development planning data model of the regional power grid may be determined according to parameters and planning information of the power devices in all the sub-regional power grids included in the model. For example: if the regional power grid is a northwest power grid, the sub-region power grids included in the regional power grid are as follows: the development planning data model of the northwest power grid can be determined according to parameters and planning information of power equipment in the Ningxia power grid, the Qinghai power grid, the Gansu power grid and the Xinjiang power grid. It should be noted that the planning information may include: in order to construct a regional power grid model for a regional power market, the structure of the existing sub-regional power grid, planning information for changing the power equipment (for example, adding inter-provincial links and the like), maintenance plans and outage plans of each power equipment in the regional power grid at different time points are required to be considered, and the like.
In addition, in practical applications, the operation scenarios of the power system can be divided into: an application scene with the maximum winter load, an application scene with the minimum winter load, and the like, in the present embodiment, the target application scene includes a first scene and a second scene respectively corresponding to each conventional application scene; the first scene is an application scene corresponding to the maximum transmission power of the tie lines included in the regional power grid, and the second scene is an application scene corresponding to the minimum transmission power of the tie lines included in the regional power grid. For example: the first scene with the maximum winter load is as follows: a scenario when the winter load is at a maximum and the transmission power of the tie line is at a maximum, wherein a second scenario when the winter load is at a maximum is as follows: a scenario when the winter load is at a maximum and the transmission power of the tie-line is at a maximum. In addition, the target application scenario may also be referred to as a "typical application scenario".
It should be noted that, in actual operation, the operation scenario of the power system may further include: correspondingly, the target application scenario may also include a scenario corresponding to the maximum transmission power and the minimum transmission power of the tie line in the conventional application scenario, or may also include a typical application scenario set by the user, and the like, which is not specifically limited herein.
In a specific application, the clearing model may be a model in which the power supply and the power demand can quickly reach equilibrium under the price mechanism adjustment of the electricity price. Compared with the clearing model of the sub-area power grid, the corresponding constraint condition needs to be added in the clearing model of the area power grid, in the embodiment, the constraint condition including the limit of the transmission power between the at least two sub-area power grids is added in the clearing model of the area power grid, and the condition that the transmission power between the at least two sub-area power grids exceeds the limit to damage the stability of the power system or exceeds the upper limit of the transmission power of the power transmission line to damage the power transmission line and the like is avoided.
In addition, the calculation result of the emerging model of the regional power market in the target application scenario may be an economic parameter of the regional power market in the target application scenario, for example: electricity prices, operating costs of the electricity storage device, power transmission costs, power generation costs, and the like.
In a specific implementation, the power market development patterns may include a centralized market pattern based on a node model and a decentralized market pattern based on a partition model, and of course, other power market development patterns may be included as the market economy develops, which is not limited in this respect.
In the above steps, at least two sub-area power grids included in the area power grid are spliced and correspondingly adjusted to form a development planning data model suitable for the area power grid, and constraint conditions and the like in the clearing mode of the area power market are determined according to the model, so that economic parameters (such as electricity price, power generation cost and the like) of the area power grid in a target application scene are calculated according to the clearing model of the area power market. Therefore, the development planning mode of the regional power market can be determined according to the economic parameter, and the high operation cost of a regional power grid caused by the adoption of an unsuitable development planning mode is avoided.
In the embodiment of the invention, a development planning data model of a regional power grid is determined according to parameters and planning information of power equipment in at least two sub-region power grids, wherein the regional power grid comprises the at least two sub-region power grids; determining constraints of a regional power market and a target application scenario of the regional power market according to the development planning data model, wherein the constraints of the regional power market at least comprise the limitation of the transmission power between the at least two sub-region power grids; adding constraint conditions of the regional power market in the clearing models of the at least two sub-region power grids to obtain the clearing models of the regional power market; and determining the power market development mode of the regional power grid according to the calculation result of the clearing model of the regional power market in the target application scene. Therefore, the power market development mode of the regional power grid is subjected to simulation calculation through the development planning data model of the regional power grid and the clearing model of the regional power market, and the power market development mode suitable for the regional power grid is determined according to the simulation calculation result, so that the regional power grid operates according to the power market development mode, and the operation cost of the regional power grid is reduced.
As an optional implementation manner, the step of determining a development planning data model of the regional power grid according to parameters and planning information of power devices in at least two sub-region power grids includes:
determining a ground state model of the regional power grid according to power grid parameters of at least two sub-region power grids at the current time;
and adjusting the ground state model according to parameters and planning information of power equipment in the at least two sub-region power grids in a planning period to obtain a development planning data model of the region power grid, wherein the development planning data model comprises stable quota parameters of the power equipment and power transmission parameters between the at least two sub-region power grids.
In a specific implementation, the grid parameters may include grid structures of sub-area grids, such as: the location of individual power generation equipment, the connection relationship between power generation equipment, and the like. The ground state model may be a model obtained by splicing the grid structures of the at least two sub-region power grids, and the model includes a connection structure of a tie line between the at least two sub-region power grids.
In specific implementation, after at least two sub-region power grids are spliced, the spliced sub-region power grids are mutually influenced, and in order to ensure the temperature operation of a power system, the ground state model needs to be adjusted according to parameters and planning information of power equipment in the at least two sub-region power grids, so that the adjusted power grid topological structure is suitable for the actual operation condition of the region power grid.
The adjusting of the ground state model may be adding electric devices and transmission lines affecting inter-provincial exchange power in the ground state model.
For example: after the power grid structures of provinces A and B are spliced, power exchange transmission is performed between the provinces A and B, and corresponding connecting lines (such as inter-province power transmission lines of more than 220KV (kilovolt)) need to be added between the provinces A and B; in addition, if the generated energy of province A is larger than the power consumption of province A, the power transmitted from province A to province B can be properly increased, and further, the power storage equipment of province B is increased; moreover, in order to ensure that the power saving network a and the power saving network B can operate stably after being spliced, the size of the transmission power between the power saving network a and the power saving network B needs to be limited, and the limit of the transmission power between the power saving network a and the power saving network B is further added to the configuration model.
In addition, in the concrete implementation, the operation mode, the startup and shutdown plan, the maintenance plan and the like of the power grid change along with the time, the environment and the equipment aging condition, in order to ensure that the development planning data model of the regional power grid can more accurately simulate the operation mode of the regional power grid in the planning period, the power outage maintenance plan, the outage maintenance plan and the like of the power equipment in the regional power grid (for example, the outage maintenance plan of an inter-provincial connecting line, the maintenance plan of an electric quantity storage device and the like) can be added to the adjusted basic state model at typical time.
For example: because the rainwater resource is abundant in spring, all the hydroelectric generating sets are started by the hydroelectric power plant to generate electricity, and because the rainwater resource is deficient in winter, only part of the hydroelectric generating sets are started by the hydroelectric power plant to generate electricity, so that the actual operation mode of the power grid is changed.
In addition, the typical time may be a peak time of electricity consumption or a time in the most common operation mode, and in a specific implementation, the typical time may also be determined according to a setting of a user, and is not particularly limited herein.
In a specific implementation, the grid structures of the at least two sub-area grids at the current time may be obtained, and the grid structures of the at least two sub-area grids at the current time are spliced into a ground state Model of the area grid according to a Common data Model-E (Common Information Model, CIM-E), for example;
corresponding power equipment and related operating parameters are added in the ground state model according to the power grid planning information of the regional power grid in the planning period;
and determining a power grid topological model structure at typical time in the planning period by combining the stock and an annual maintenance plan and a service stop plan of newly-added power equipment, and converting the power grid topological model structure into a data model, namely a development planning data model of the regional power grid.
The existing quantity and the newly added power devices can include power devices and transmission lines which are added in each sub-area power grid or between the sub-area power grids in order to obtain the adaptation to the area power grid.
As shown in fig. 2, if the regional power grid includes a first-provincial power grid, a second-provincial power grid and a third-provincial power grid, the models of the first-provincial power grid, the second-provincial power grid and the third-provincial power grid are spliced according to a CIM-E language to obtain a ground state model of the regional power grid; adjusting the ground state model of the regional power grid according to parameters and power grid planning information of power equipment in the first, second and third provincial power grids to obtain a regional power grid planning model suitable for regional power grid planning; and combining the regional power grid planning model with a service outage maintenance plan, a power outage maintenance plan and the like of equipment to obtain a regional power market development planning calculation model, namely a development planning data model of the regional power grid.
In the embodiment, by combining the power grid structure of the current sub-area power market, the newly added equipment and circuits of the area power grid in the planning period, the outage maintenance plan of each equipment in the planning period and the like, the obtained development planning data model of the area power grid is more matched with the area power grid in the planning period, and the accuracy of the calculation result of the model is improved.
As an optional implementation, the step of determining a target application scenario according to the development planning data model includes:
acquiring operation mode prediction information of each scheduling area in the regional power grid in a planning period;
determining an initial operation mode according to the operation mode prediction information and the development planning data model;
and determining the target application scene according to the corresponding operation modes of the initial operation mode when the exchange power of a tie line is the maximum value and the minimum value respectively, wherein the tie line is a power transmission line connected between any two sub-area power grids in the at least two sub-area power grids, and the maximum value and the minimum value of the exchange power of the tie line are determined according to the limit of the transmission power between the at least two sub-area power grids.
In a specific implementation, the scheduling area may be understood as an area governed by a scheduling unit, for example: provincial regions governed by provincial regulations, and the like, in the present embodiment, the initial operation mode may adopt a conventional typical operation mode, for example: in the dispatching area with a large water-electricity ratio, the method may further include a heavy water period maximum load operation mode, a heavy water period minimum load operation mode, a dry water period maximum load operation mode, a dry water period minimum load operation mode, and the like.
In addition, in this embodiment, the target application scenario includes operation modes corresponding to the initial operation modes when the exchange power of the tie line takes a maximum value and a minimum value, respectively. For example: if the initial operation mode comprises a winter maximum load operation mode and a winter minimum load operation mode, the target application scene comprises: an application scenario of the winter maximum load operation mode when the exchange power of the tie line takes a maximum value, an application scenario of the winter maximum load operation mode when the exchange power of the tie line takes a minimum value, an application scenario of the winter minimum load operation mode when the exchange power of the tie line takes a maximum value, and an application scenario of the winter minimum load operation mode when the exchange power of the tie line takes a minimum value.
In practical applications, the limitation of the transmission power between the at least two sub-area power grids may be a maximum output power and a minimum output power that can be provided by the at least two sub-area power grids on the premise of ensuring the stability of the power system. The above-mentioned
In this embodiment, two target application scenes are respectively and correspondingly set for each initial operation mode according to the maximum value and the minimum value of the transmission power of the tie line, so that the target application scenes can simulate the situation that the transmission power of the tie line is the maximum value and the minimum value, the calculation result of the clearing model can meet the requirements of various application scenes, and the reliability of the calculation result of the regional power market development planning mode determination method is improved.
Of course, in practical applications, an application scenario in which the transmission power of the tie line is at the most common value may be added to the target application scenario, and is not particularly limited herein.
As an optional implementation, the operation mode prediction information includes:
and the load prediction information of the regional power grid, the new energy power generation amount prediction information and the power exchange prediction information of the tie line.
In a specific implementation, the new energy power generation amount prediction information may further include new energy power generation prediction information, a typical power generation plan, and the like.
For example: as shown in fig. 3, the initial operation mode is determined according to the load prediction, the typical power generation plan, and the tie line transmission power plan of each sub-area power grid included in the area power grid; and determining constraint conditions of each initial operation mode according to the regional power market development planning data model, and determining an application scene of the initial operation mode when the transmission power of the connecting line takes the maximum value and the minimum value according to the constraint conditions to obtain the target application scene.
In this embodiment, according to the load prediction information of the regional power grid, the new energy power generation amount prediction information, and the power exchange prediction information of the tie line in the planning period, various typical operation modes, application scenes, and the like of the regional power grid in the planning period are determined, so that the simulation scene of the regional power grid planning data model is more comprehensive and conforms to the actual operation condition.
As an alternative embodiment, the limitation of the transmission power between the at least two sub-area power grids comprises:
wherein, P l,max For the upper limit of the cross-sectional exchange power between two sub-area networks, P l,min For the lower limit, P, of the cross-sectional exchange power between the two sub-area grids l,t And the transmission power of the ith tie line at T, L is the total number of the tie lines between the two sub-area power grids, T can be any time in the planning period T, and the section exchange power is equal to the sum of the transmission power of the tie lines between the two sub-area power grids.
In a specific implementation, the planning period T may be divided into a plurality of periods, and the limit of the transmission power between two sub-area power grids is calculated once every other period, for example: and when T is equal to 1, the limitation of the transmission power between the two sub-area power grids calculated in the first period in the planning period T is represented.
Wherein, the P l,max For maximum value of power exchange between two sub-area grids, P l,min The minimum value for power exchange between two sub-area grids. For example: 10 links are arranged between provinces A and B, and through analysis and calculation of stability of a power system, the province A can transmit 1 billion megawatt of electric energy to the province B at most, and can transmit 0.1 billion megawatt of electric energy to the province B at least, so that the sum of the transmission power of the 10 links from the province A to the province B needs to be greater than or equal to 0.1 billion megawatt and less than or equal to 1 megawatt.
In the embodiment, the transmission power of the tie line between the two sub-area power grids is constrained according to the limit of the cross-section exchange power between the two sub-area power grids, and the condition that the stable operation of the power system is damaged due to the fact that the transmission power of the tie line is too large or too small is avoided, so that the operation stability of the area power grids is improved.
As an optional implementation manner, the step of determining the power market development mode of the regional power grid according to the calculation result of the regional power market clearing model in the target application scenario includes:
acquiring a first simulation calculation result of the regional power market clearing model based on a centralized market mode in the target application scene, and acquiring a second simulation calculation result of the regional power market clearing model based on a distributed market mode in the target application scene;
and determining the development mode of the power market of the regional power grid according to the first simulation calculation result and the second simulation calculation result.
In a specific implementation, the first simulation calculation result and the second simulation calculation result may include economic parameters such as power generation cost, transaction electric quantity and transaction power price of each power plant, power transmission cost of each power transmission line, and purchase power price and purchase electric quantity of an electric quantity demand side in a target application scenario.
In addition, the first simulation calculation result and the second simulation calculation result may be compared to determine which calculation result is more excellent in performance, so as to determine that the development pattern of the power market corresponding to the calculation result is the development pattern of the power market suitable for the regional power grid.
Specifically, the performance of the calculation result can be evaluated by the following three aspects:
1. whether the market price can be found can be exerted, and the market promotes competition, so that the efficiency of market transaction is improved (for example, through bidding transaction, power saving A with low power generation cost and large power generation amount is realized and is transmitted to power saving B with small power generation amount and large power consumption amount, so that the transaction power price of the power saving A and the power saving B is adjusted);
2. whether the particularity of the power commodity can be fully considered, and the safety and the stability of the power system can be ensured (for example, because the fluctuation of the trading volume and the like following the power market is very large in the process of trading the electric quantity in the power market, the power system can be always in a stable state under the fluctuation);
3. whether the market mode has expansibility or not and whether the market mode can adapt to the characteristics of local power grids and power generation resources (for example, if the power generation amount of a province with rich water resources changes along with a rich water period and a dry water period, the development mode of the power market corresponding to the calculation result is required to adapt to the change characteristic of the province power generation amount).
In this embodiment, the first simulation calculation result and the second simulation calculation result of the emerging model of the regional power market in the target application scene are respectively calculated based on the centralized market mode and the distributed market mode, so that the development mode of the power market applicable to the regional power market is determined according to the comparison between the two simulation calculation results, and in specific application, the corresponding device and system can be controlled to control the regional power market according to the development mode of the power market, so as to reduce the operation cost of the regional power market and improve the stability of the regional power grid.
Referring to fig. 4, an embodiment of the present invention further provides a device 400 for determining a development planning mode of a local power market, as shown in fig. 4, the device 400 for determining a development planning mode of a local power market includes:
a first determining module 401, configured to determine a development planning data model of a regional power grid according to parameters and planning information of power devices in at least two sub-region power grids, where the regional power grid includes the at least two sub-region power grids;
a second determining module 402, configured to determine, according to the development planning data model, constraints of a regional power market and a target application scenario of the regional power market, where the constraints of the regional power market at least include a limit of transmission power between the at least two sub-region power grids;
an adding module 403, configured to add a constraint condition of the regional power market to the export model of the at least two sub-region power grids to obtain an export model of the regional power market;
a third determining module 404, configured to determine a power market development mode of the regional power grid according to a calculation result of the outbound model of the regional power market in the target application scenario.
Optionally, as shown in fig. 5, the second determining module 402 includes:
a first obtaining unit 4021, configured to obtain operation mode prediction information of each scheduling area in the regional power grid in a planning period;
a first determining unit 4022, configured to determine an initial operation mode according to the operation mode prediction information and the development planning data model;
a second determining unit 4023, configured to determine the target application scenario according to the corresponding operation modes when the initial operation mode is respectively the maximum value and the minimum value of the exchange power of a tie line, where the tie line is a power transmission line connected between any two sub-area power grids in the at least two sub-area power grids, and the maximum value and the minimum value of the exchange power of the tie line are determined according to the limit of the transmission power between the at least two sub-area power grids.
Optionally, the operation mode prediction information includes:
and the load prediction information and the new energy power generation amount prediction information of the regional power grid and the power exchange prediction information of the tie line are obtained.
Optionally, the limitation of the transmission power between the at least two sub-area power grids includes:
wherein, P l,max For the upper limit of the cross-sectional exchange power between two sub-area networks, P l,min A lower limit, P, of the cross-section exchange power between the two sub-area grids l,t And the transmission power of the ith tie line at T, L is the total number of the tie lines between the two sub-area power grids, T can be any time in the planning period T, and the section exchange power is equal to the sum of the transmission power of the tie lines between the two sub-area power grids.
Optionally, as shown in fig. 6, the first determining module 401 includes:
the third determining unit 4011 is configured to determine a ground state model of the regional power grid according to power grid parameters of at least two sub-region power grids at current time;
an adjusting unit 4012, configured to adjust the ground state model according to parameters and planning information of the electrical devices in the at least two sub-area electrical grids in a planning period, to obtain a development planning data model of the area electrical grid, where the development planning data model includes a stable quota parameter of the electrical devices and a transmission parameter between the at least two sub-area electrical grids.
Optionally, as shown in fig. 7, the third determining module 404 includes:
a fourth determining unit 4041, configured to obtain a first simulation calculation result obtained by the regional power market clearing model based on a centralized market mode in the target application scenario, and obtain a second simulation calculation result obtained by the regional power market clearing model based on a decentralized market mode in the target application scenario;
a fifth determining unit 4042, configured to determine a development pattern of the power market of the regional power grid according to the first simulation calculation result and the second simulation calculation result.
The device for determining the regional power market development planning mode provided by the embodiment of the invention can be realized, and each process in the method embodiment provided by the invention can obtain the same beneficial effect, so that the repeated description is omitted for avoiding the repetition.
Referring to fig. 8, an electronic device according to an embodiment of the present invention further includes a memory 801, a processor 802, and a computer program 8011 stored in the memory 801 and executable on the processor 802.
When the processor 802 runs the computer program 8011, the following steps are performed:
determining a development planning data model of a regional power grid according to parameters and planning information of power equipment in at least two sub-region power grids, wherein the regional power grid comprises the at least two sub-region power grids;
determining constraints of a regional power market and a target application scenario of the regional power market according to the development planning data model, wherein the constraints of the regional power market at least comprise the limitation of the transmission power between the at least two sub-region power grids;
adding constraint conditions of the regional power market in the clearing models of the at least two sub-region power grids to obtain the clearing models of the regional power market;
and determining the power market development mode of the regional power grid according to the calculation result of the clearing model of the regional power market in the target application scene.
Optionally, the step performed by the processor 802 to determine the target application scenario according to the development planning data model includes:
acquiring operation mode prediction information of each scheduling area in the regional power grid in a planning period;
determining an initial operation mode according to the operation mode prediction information and the development planning data model;
and determining the target application scene according to the corresponding operation modes of the initial operation mode when the exchange power of a tie line is the maximum value and the minimum value respectively, wherein the tie line is a power transmission line connected between any two sub-area power grids in the at least two sub-area power grids, and the maximum value and the minimum value of the exchange power of the tie line are determined according to the limit of the transmission power between the at least two sub-area power grids.
Optionally, the operation mode prediction information includes:
and the load prediction information of the regional power grid, the new energy power generation amount prediction information and the power exchange prediction information of the tie line.
Optionally, the limitation of the transmission power between the at least two sub-area power grids includes:
Wherein, P l,max For the upper limit of the cross-sectional exchange power between two sub-area networks, P l,mim For the lower limit, P, of the cross-sectional exchange power between the two sub-area grids l,t The transmission power of the ith tie line at T, L is the total number of tie lines between the two sub-area power grids, T can be any time in the planning period T, and the section exchange power is equal to the transmission power between the two sub-area power gridsSum of the transmission power of the tie line.
Optionally, the step, executed by the processor 802, of determining a development planning data model of the regional power grid according to parameters and planning information of power devices in at least two sub-region power grids includes:
determining a ground state model of the regional power grid according to power grid parameters of at least two sub-region power grids at the current time;
and adjusting the ground state model according to parameters and planning information of power equipment in the at least two sub-region power grids in a planning period to obtain a development planning data model of the region power grid, wherein the development planning data model comprises stable quota parameters of the power equipment and power transmission parameters between the at least two sub-region power grids.
Optionally, the step, executed by the processor 802, of determining the power market development mode of the regional power grid according to the calculation result of the regional power market clearing model in the target application scenario includes:
acquiring a first simulation calculation result of the regional power market clearing model based on a centralized market mode in the target application scene, and acquiring a second simulation calculation result of the regional power market clearing model based on a distributed market mode in the target application scene;
and determining the development mode of the power market of the regional power grid according to the first simulation calculation result and the second simulation calculation result.
In the embodiment of the present invention, when the processor executes the computer program, the processes of the method embodiments described above are implemented, and the same technical effect can be achieved.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention or portions thereof contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a mobile terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
While the present invention has been described with reference to the particular illustrative embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but is intended to cover various modifications, equivalent arrangements, and equivalents thereof, which may be made by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. A method for determining a regional power market development planning pattern, the method comprising:
determining a development planning data model of a regional power grid according to parameters and planning information of power equipment in at least two sub-region power grids, wherein the regional power grid comprises the at least two sub-region power grids;
determining constraints of a regional power market and a target application scenario of the regional power market according to the development planning data model, wherein the constraints of the regional power market at least comprise the limitation of the transmission power between the at least two sub-region power grids;
adding constraint conditions of the regional power market in the clearing models of the at least two sub-region power grids to obtain the clearing models of the regional power market;
determining a power market development mode of the regional power grid according to a calculation result of the clearing model of the regional power market in the target application scene;
wherein the step of determining a target application scenario from the development planning data model comprises:
acquiring operation mode prediction information of each scheduling area in the regional power grid in a planning period;
determining an initial operation mode according to the operation mode prediction information and the development planning data model;
and determining the target application scene according to the corresponding operation modes of the initial operation mode when the exchange power of a tie line is the maximum value and the minimum value respectively, wherein the tie line is a power transmission line connected between any two sub-area power grids in the at least two sub-area power grids, and the maximum value and the minimum value of the exchange power of the tie line are determined according to the limit of the transmission power between the at least two sub-area power grids.
2. The method according to claim 1, wherein the operation mode prediction information includes:
and the load prediction information of the regional power grid, the new energy power generation amount prediction information and the power exchange prediction information of the tie line.
3. The regional power market development planning pattern determination method of claim 1, wherein the quota of delivered power between the at least two sub-regional power grids comprises:
wherein, P l,max For the upper limit of the cross-sectional exchange power between two sub-area networks, P l,min For the lower limit, P, of the cross-sectional exchange power between the two sub-area grids l,t And the transmission power of the ith tie line at T, L is the total number of the tie lines between the two sub-area power grids, T can be any time in the planning period T, and the section exchange power is equal to the sum of the transmission power of the tie lines between the two sub-area power grids.
4. The method for determining the regional power market development planning pattern according to claim 1, wherein the step of determining the development planning data model of the regional power grid according to the parameters and the planning information of the power equipment in at least two sub-regional power grids comprises:
determining a ground state model of the regional power grid according to power grid parameters of at least two sub-region power grids at the current time;
and adjusting the ground state model according to parameters and planning information of the power equipment in the at least two sub-region power grids in a planning period to obtain a development planning data model of the region power grid, wherein the development planning data model comprises stability quota parameters of the power equipment and power transmission parameters between the at least two sub-region power grids.
5. The method according to claim 1, wherein the step of determining the power market development pattern of the regional power grid according to the calculation result of the regional power market clearing model in the target application scenario comprises:
acquiring a first simulation calculation result of the regional power market clearing model based on a centralized market mode in the target application scene, and acquiring a second simulation calculation result of the regional power market clearing model based on a distributed market mode in the target application scene;
and determining the development mode of the power market of the regional power grid according to the first simulation calculation result and the second simulation calculation result.
6. A regional power market development planning pattern determining apparatus, the apparatus comprising:
the system comprises a first determining module, a planning module and a planning module, wherein the first determining module is used for determining a development planning data model of a regional power grid according to parameters and planning information of power equipment in at least two sub-region power grids, and the regional power grid comprises the at least two sub-region power grids;
a second determining module, configured to determine, according to the development planning data model, a constraint condition of a regional power market and a target application scenario of the regional power market, where the constraint condition of the regional power market at least includes a limit of transmission power between the at least two sub-region power grids;
the increasing module is used for increasing the constraint conditions of the regional power market in the clearing model of the at least two sub-region power grids to obtain the clearing model of the regional power market;
the third determining module is used for determining the power market development mode of the regional power grid according to the calculation result of the clearing model of the regional power market in the target application scene;
wherein the step of determining a target application scenario from the development planning data model comprises:
acquiring operation mode prediction information of each scheduling area in the regional power grid in a planning period;
determining an initial operation mode according to the operation mode prediction information and the development planning data model;
and determining the target application scene according to the corresponding operation modes of the initial operation mode when the exchange power of a tie line is the maximum value and the minimum value respectively, wherein the tie line is a power transmission line connected between any two sub-area power grids in the at least two sub-area power grids, and the maximum value and the minimum value of the exchange power of the tie line are determined according to the limit of the transmission power between the at least two sub-area power grids.
7. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps in the regional power market development planning pattern determination method according to any one of claims 1 to 5 when executing the computer program.
8. A computer-readable storage medium, having a computer program stored thereon, wherein the computer program, when being executed by a processor, implements the steps in the regional power market development planning pattern determination method according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910203824.1A CN110362845B (en) | 2019-03-18 | 2019-03-18 | Method and device for determining regional power market development planning mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910203824.1A CN110362845B (en) | 2019-03-18 | 2019-03-18 | Method and device for determining regional power market development planning mode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110362845A CN110362845A (en) | 2019-10-22 |
| CN110362845B true CN110362845B (en) | 2023-04-18 |
Family
ID=68215499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910203824.1A Active CN110362845B (en) | 2019-03-18 | 2019-03-18 | Method and device for determining regional power market development planning mode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110362845B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113592667A (en) * | 2020-04-30 | 2021-11-02 | 南京南瑞继保电气有限公司 | Method for generating market model of electric power spot market from EMS |
| CN111754076B (en) * | 2020-05-25 | 2024-03-08 | 国家电网有限公司 | Method and equipment suitable for evaluating electric wholesale market mode |
| CN111899122B (en) * | 2020-07-03 | 2024-01-02 | 国网江苏省电力有限公司镇江供电分公司 | User decentralized clearing method based on energy storage control |
| CN115693650B (en) * | 2022-10-17 | 2023-07-28 | 国家电网有限公司大数据中心 | Determination method, device, equipment and medium for regional power carbon emission factor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101901429A (en) * | 2010-07-21 | 2010-12-01 | 中国电力科学研究院 | Power market simulation modeling method based on Web GIS technology |
| WO2013166510A1 (en) * | 2012-05-04 | 2013-11-07 | Viridity Energy, Inc. | Facilitating revenue generation from wholesale electricity markets using an engineering-based energy asset model |
| CN106447462A (en) * | 2016-10-18 | 2017-02-22 | 国网山东省电力公司烟台供电公司 | Power market panorama experiment platform |
-
2019
- 2019-03-18 CN CN201910203824.1A patent/CN110362845B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101901429A (en) * | 2010-07-21 | 2010-12-01 | 中国电力科学研究院 | Power market simulation modeling method based on Web GIS technology |
| WO2013166510A1 (en) * | 2012-05-04 | 2013-11-07 | Viridity Energy, Inc. | Facilitating revenue generation from wholesale electricity markets using an engineering-based energy asset model |
| CN106447462A (en) * | 2016-10-18 | 2017-02-22 | 国网山东省电力公司烟台供电公司 | Power market panorama experiment platform |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110362845A (en) | 2019-10-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110362845B (en) | Method and device for determining regional power market development planning mode | |
| Greenwood et al. | A probabilistic method combining electrical energy storage and real-time thermal ratings to defer network reinforcement | |
| Kumar et al. | Renewable energy based microgrid system sizing and energy management for green buildings | |
| Varaiya et al. | Smart operation of smart grid: Risk-limiting dispatch | |
| Qi et al. | Hierarchical coordinated control of plug-in electric vehicles charging in multifamily dwellings | |
| Krishnamurthy et al. | Effects of power electronics, energy storage, power distribution architecture, and lifeline dependencies on microgrid resiliency during extreme events | |
| Wu et al. | A multi-agent-based energy-coordination control system for grid-connected large-scale wind–photovoltaic energy storage power-generation units | |
| Pradhan et al. | Frequency sensitivity analysis of dynamic demand response in wind farm integrated power system | |
| Hao et al. | Locational marginal pricing in the campus power system at the power distribution level | |
| CN111799794A (en) | Power transmission network extension planning method considering surplus of transmission resistor plug | |
| US11791631B2 (en) | Dynamic computation and control of distributed assets at the edge of a power grid | |
| Farzin et al. | A hierarchical scheme for outage management in multi‐microgrids | |
| Zhu et al. | Energy optimal dispatch of the data center microgrid based on stochastic model predictive control | |
| Hamidi et al. | Value of wind power at different locations in the grid | |
| CN112699562A (en) | Method and terminal for constructing power distribution network architecture | |
| Li et al. | Real-time scheduling of time-shiftable loads in smart grid with dynamic pricing and photovoltaic power generation | |
| Liang et al. | Adaptive robust energy management strategy for campus-based commercial buildings considering comprehensive comfort levels | |
| Hamdaoui et al. | Optimized energy management of electric vehicles connected to microgrid | |
| Gonzalez-Castellanos et al. | Congestion management via increasing integration of electric and thermal energy infrastructures | |
| Santos et al. | New scoring metric for load shedding in multi‐control area systems | |
| Huang et al. | Research on capacity allocation and economy of islanded microgrid | |
| CN117200278B (en) | New energy power transmission network planning method and planning model construction method related to energy storage | |
| KR102538077B1 (en) | System and method for forecasting maximum generation limit of renewable energy | |
| CN109861309B (en) | Distributed optimization method for island operation microgrid group energy scheduling | |
| US20220057767A1 (en) | Methods and systems for energy storage dispatch |
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 | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200710 Address after: 510000, Guangdong, Guangzhou province Yuexiu District Dongfeng East Road water all Gang 6-8 Applicant after: GUANGDONG ELECTRIC POWER TRANSACTION CENTER Co.,Ltd. Address before: 510000, Guangdong, Guangzhou province Yuexiu District Dongfeng East Road water all Gang 6-8 Applicant before: GUANGDONG ELECTRIC POWER TRANSACTION CENTER Co.,Ltd. Applicant before: ELECTRIC POWER PLANNING AND ENGINEERING INSTITUTE Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |