CN111049140B - Method and device for analyzing running rationality of power system - Google Patents
Method and device for analyzing running rationality of power system Download PDFInfo
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Abstract
The invention discloses an operation rationality analysis method of a power system, which comprises the following steps: acquiring a data set of the operating environment of the power system, and constructing a power system operating model; wherein the data set includes system data, unit data, plant data, unit group constraints, and tie line plan data for the power system; generating a corresponding power system operation result according to the power system operation model; and carrying out power flow analysis and safety check on the operation result of the power system according to a preset rationality analysis standard so as to judge the running rationality of the power system. The invention also discloses a corresponding operation rationality analysis device of the power system, and by implementing the embodiment of the invention, the accuracy and the reliability of the operation rationality analysis of the power system can be effectively improved, and the operation regulation and control and management effects of the power system are improved.
Description
Technical Field
The invention relates to the technical field of power system evaluation, in particular to a method and a device for analyzing the running rationality of a power system.
Background
Along with the gradual deepening of the reform of the power system industry in China and the continuous expansion of the market scale, the variety of power transactions is enriched day by day, the complexity of the operation of the power system is increased by diversified contract modes in the power market, uncertainty is brought to the market operation result, and new risks and challenges are brought to the operation regulation and management work of the power system. Therefore, in order to analyze the running rationality of the power system and improve the regulation and control and management effects on the running of the power system, domestic and foreign scholars successively establish various experimental means for the running of the power system to research the running rationality of the power system.
However, in the process of implementing the invention, the inventor finds that the prior art has at least the following problems: the establishment of the existing power system operation simulation platform is mostly restricted by technical difficulties, has more functional limitations, has certain time lag in the operation result, and cannot finish the power system operation mode adapting to the current round; the electric power system operation simulation platform developed by academic institutions mostly stays in a research and teaching stage, or does not have perfect market member simulation and result decision, or fails to consider a detailed power grid model, and the practical application of the electric power system operation simulation platform is limited, so that the problem of improving the reasonability analysis of the electric power system operation is urgently solved.
Disclosure of Invention
The embodiment of the invention aims to provide a method and a device for analyzing the running rationality of an electric power system, which can effectively improve the accuracy and reliability of the analysis on the running rationality of the electric power system and improve the regulation and control and management effects on the running of the electric power system.
In order to achieve the above object, an embodiment of the present invention provides an operation rationality analysis method for an electric power system, including:
acquiring a data set of the operating environment of the power system, and constructing a power system operating model; wherein the data set includes system data, unit data, plant data, unit group constraints, and tie line plan data for the power system;
generating a corresponding power system operation result according to the power system operation model;
and carrying out power flow analysis and safety check on the operation result of the power system according to a preset rationality analysis standard so as to judge the running rationality of the power system.
As an improvement of the above scheme, the acquiring a data set of an operating environment of the power system and constructing a power system operating model specifically includes:
acquiring a data set of the operating environment of the power system, configuring operating parameters of an operating model of the power system, and setting corresponding constraint conditions and constraint relaxation priorities;
building a commodity model of the power transaction of the power system operation model; the commodity model comprises commodity types and cost composition;
and combining and configuring the operating parameters and the commodity model to construct the power system operating model.
As an improvement of the above scheme, the generating a corresponding power system operation result according to the power system operation model specifically includes:
constructing a clearing model conforming to the electric power transaction mode according to the electric power system operation model;
calling a preset clearing algorithm to solve the clearing model, and generating a clearing result of the electric power transaction as an operation result of the electric power system; the clearing algorithm comprises a medium-long term centralized matching clearing algorithm and a day-ahead and real-time scheduling plan optimization algorithm.
As an improvement of the above scheme, the performing power flow analysis and safety check on the operation result of the power system according to a preset rationality analysis standard to determine the rationality of the operation of the power system specifically includes:
acquiring electric power transaction information in the electric power system operation period according to the electric power system operation result; the electric power transaction information comprises medium-long term transaction information, day-ahead quotation information, a day-ahead clearing result and a day-in rolling clearing result;
according to the preset rationality analysis standard, carrying out real-time power flow analysis and safety check on the electric power transaction information to obtain check information;
and judging the running reasonability of the power system according to the checking information.
As an improvement of the above scheme, the method for analyzing the operation rationality of the power system further includes the steps of:
when the electric power system is judged to be reasonably operated, outputting an operation result of the electric power system;
and when the electric power system is judged to be unreasonable in operation, revising the clearing model conforming to the electric power transaction mode, calling a preset clearing algorithm to solve the clearing model, and generating a clearing result of the electric power transaction as an operation result of the electric power system.
The embodiment of the invention also provides an operation rationality analysis device of the power system, which comprises a system model construction module, an operation result generation module and a rationality analysis module:
the system model building module is used for acquiring a data set of the operating environment of the power system and building an operating model of the power system; wherein the data set includes system data, unit data, plant data, unit group constraints, and tie line plan data for the power system;
the operation result generation module is used for generating a corresponding power system operation result according to the power system operation model;
and the rationality analysis module is used for carrying out power flow analysis and safety check on the operation result of the electric power system according to a preset rationality analysis standard so as to judge the running rationality of the electric power system.
As an improvement of the above scheme, the system model building module includes a parameter configuration module, a commodity building module, and a model organization module:
the parameter configuration module is used for acquiring a data set of the operating environment of the power system, configuring the operating parameters of the operating model of the power system, and setting corresponding constraint conditions and constraint relaxation priorities;
the commodity construction module is used for constructing a commodity model of the power transaction of the power system operation model; the commodity model comprises commodity types and cost composition;
and the model organization module is used for combining and configuring the operation parameters and the commodity model so as to construct the power system operation model.
As an improvement of the above scheme, the operation result generation module includes a clear model module and a result solving module:
the clearing model module is used for constructing a clearing model conforming to an electric power transaction mode according to the electric power system operation model;
the result solving module is used for calling a preset clearing algorithm to solve the clearing model, and generating a clearing result of the electric power transaction as an operation result of the electric power system; the clearing algorithm comprises a medium-long term centralized matching clearing algorithm and a day-ahead and real-time scheduling plan optimization algorithm.
As an improvement of the above scheme, the rationality analysis module comprises an information acquisition module, a security check module and a result judgment module:
the information acquisition module is used for acquiring electric power transaction information in the electric power system operation period according to the electric power system operation result; the electric power transaction information comprises medium-long term transaction information, day-ahead quotation information, a day-ahead clearing result and a day-in rolling clearing result;
the safety check module is used for carrying out real-time power flow analysis and safety check on the electric power transaction information according to the preset reasonableness analysis standard to obtain check information;
and the result judgment module is used for judging the running reasonability of the power system according to the checking information.
The embodiment of the present invention further provides an operation rationality analysis apparatus for an electric power system, which is characterized by comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein the processor implements the operation rationality analysis method for the electric power system according to any one of the above items when executing the computer program.
Compared with the prior art, the method and the device for analyzing the running rationality of the power system disclosed by the invention have the advantages that the running environment data set of the power system is obtained, the power system running model is constructed to simulate the running process of the actual power system, the corresponding power system running result is generated, and the power flow analysis and the safety check are carried out on the power system running result in real time according to the preset rationality analysis standard so as to judge the running rationality of the power system. The method can effectively improve the accuracy and reliability of analysis on the running rationality of the power system, and improve the regulation and control and management effects on the running of the power system.
Drawings
Fig. 1 is a schematic flowchart illustrating steps of a method for analyzing operation rationality of an electrical power system according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart illustrating steps of a preferred method for analyzing the operating rationality of an electrical power system according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of an operation rationality analysis device of an electric power system according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of an operation rationality analysis device of a preferred power system according to a fourth embodiment of the present invention;
fig. 5 is a schematic structural diagram of another apparatus for analyzing operation rationality of an electrical power system according to a fifth 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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Fig. 1 is a schematic flow chart illustrating steps of a method for analyzing operation rationality of an electric power system according to an embodiment of the present invention. The operation rationality analysis method for the power system provided by the embodiment includes steps S11 to S13:
s11, acquiring a data set of the operating environment of the power system, and constructing an operating model of the power system; wherein the data set includes system data, unit data, plant data, unit group constraints, and tie line plan data for the power system.
Specifically, by acquiring a data set under the operating environment of the power system, including system data, unit data, power plant data, unit group constraints, tie line plan data, and the like, each power equipment model and model data are correspondingly constructed, including a power grid model, a unit model, load prediction, a tie line plan, and the like. Meanwhile, the electric power trading varieties which are operated in the electric power trading market are required to be constructed, wherein the electric power trading varieties comprise medium-long-term trading, electric power spot trading, auxiliary service trading and the like in the electric power market, electric power commodity subdivision types appearing in the operation process of the electric power trading market are preset so that a user can design a new electric power trading variety, and therefore an electric power system operation model is constructed, and the operation environment of electric energy production and consumption formed by links of power generation, power transmission, power transformation, power distribution, power utilization and the like of the electric power system is accurately and completely described.
And S12, generating a corresponding power system operation result according to the power system operation model.
Specifically, according to the power system operation model, the operation environment of the actual power system is simulated, and corresponding power system operation results are solved and generated by setting different objective functions and different constraint conditions and matching with corresponding algorithms. The operation result of the power system can be a clearing result of a power trading market, wherein the clearing result comprises medium-long term trading information, day-ahead quotation information, day-ahead clearing result, day-in-day rolling clearing result and the like.
And S13, carrying out power flow analysis and safety check on the operation result of the power system according to a preset reasonability analysis standard so as to judge the reasonability of the operation of the power system.
Specifically, in order to determine the rationality of the operation of the power system, a rationality analysis criterion needs to be set in advance. The preset rationality analysis standard is a power flow threshold value set for the power flow size of all sections and lines in the power system. And the power flow threshold value of the line is set according to the physical characteristics of the power transmission line. For example, in order to meet the thermal stability of the power transmission line, the transmission capacity meeting the standard working condition limit is set as the power flow threshold of the line; the current threshold of the section is obtained by adopting the conventional calculation method of the thermal stability limit of the power transmission channel according to the physical characteristics of the power transmission section, and is not particularly limited herein. And analyzing the power flow of all sections or lines in the power system to judge whether the power flow exceeds the power flow threshold value, so as to judge whether the power flow exceeds the limit. And when the current exceeds the limit, judging that the power system is unreasonable to operate, and when the current does not exceed the limit, judging that the power system is reasonable to operate. And performing trend analysis and safety check in real time by importing the medium-and-long-term transaction information, the day-ahead quotation information, the day-ahead clearing result, the day-in rolling clearing result and the like, and judging whether the clearing result of the electric power transaction market and the operation process of the electric power system have rationality or not.
According to the operation rationality analysis method of the power system, provided by the embodiment of the invention, the data set of the operation environment of the power system is obtained, the power system operation model is constructed to simulate the operation process of the actual power system, the corresponding power system operation result is generated, and the power flow analysis and safety check are carried out on the power system operation result in real time according to the preset rationality analysis standard so as to judge the operation rationality of the power system. The method can effectively improve the accuracy and reliability of analysis on the running rationality of the power system, and improve the regulation and control and management effects on the running of the power system.
Further, referring to fig. 2, a schematic step flow diagram of a preferred method for analyzing operation rationality of an electrical power system according to a second embodiment of the present invention is provided. In this embodiment, the method for analyzing the operation rationality of the power system includes steps S21 to S23:
s21, acquiring a data set of the operating environment of the power system, and constructing an operating model of the power system; wherein the data set includes system data, unit data, plant data, unit group constraints, and tie line plan data for the power system.
Step S21 is specifically executed by steps S211 to S213:
s211, acquiring a data set of the operating environment of the power system, configuring operating parameters of the operating model of the power system, and setting corresponding constraint conditions and constraint relaxation priorities.
The method comprises the steps of configuring operation parameters of an electric power system operation model by acquiring a data set of an operation environment of the electric power system, wherein the data set comprises system data, unit data, power plant data, unit group constraints, tie line plan data, safety check data and the like, flexibly selecting and adding or reducing constraint conditions or flexibly setting various constraint relaxation priorities and priority ranges through parameter setting, and accordingly providing a basis for parameters required by construction of a subsequent electric power system operation model and flexibly adjusting the electric power system operation model.
S212, constructing a commodity model of the power transaction of the power system operation model; the commodity model includes commodity type and cost components.
The method comprises the following steps of (1) trading varieties operated on the electric power trading market, including medium and long term trading, electric power spot trading, auxiliary service trading and the like; all commodity segment types that can appear in electricity trading market operations are preset, and cost composition and cost models of each segment electricity commodity are predefined. The user can design and form a new transaction variety and select the new transaction variety based on the customizable types of the different varieties.
Specifically, the commodity model is divided into a spot commodity model, a medium-long term commodity model, an auxiliary service commodity model and the like according to the attributes of the electric power commodity. The transaction varieties in the spot commodity model have different varieties according to different dividing modes. According to different transaction ranges, the method can be divided into intra-province, inter-province and whole region; according to the development time of the market, the method can be divided into day-ahead transaction, day-in-day transaction and real-time transaction; according to different transaction reporting modes, the method can be divided into a single-side reporting rate mode, a single-side reporting rate mode and a double-side reporting rate mode; the method can be divided into physical execution and financial spread execution according to execution modes; according to the clearing mode, the method can be divided into safety unit combined clearing and energy-saving economic dispatching clearing; the settlement method can be divided into node electricity price settlement, partition settlement and the like.
The transaction varieties in the medium-term and long-term commodity model specifically comprise bilateral negotiation transaction, centralized bidding transaction, listing transaction and the like. The bilateral negotiation transaction relates to data such as the form, the electric quantity, the price and the like of a bilateral contract signed by a power generation enterprise and a large user or a power selling company, and comprises a bilateral negotiation electric quantity monthly decomposition model based on a power generation enterprise maintenance plan, a power generation capacity and user actual electric quantity demand distribution, so that reasonable electric quantity decomposition and cost and income measurement of the bilateral negotiation transaction are realized. The centralized bidding transaction relates to data such as market supply and demand, simulated quoted price information of each market member, agent information of an electricity selling company, bilateral negotiation decomposition electric quantity and the like, and comprises a centralized bidding transaction simulation algorithm based on a centralized bidding market clearing rule, so that functional simulation of transaction organization, bargain matching, safety check and the like of a wholesale market and a retail market is realized, and various unconstrained and constrained transaction results and executable transaction and scheduling plans are formed. The listing transaction relates to data such as market supply and demand, listing and picking information of market members, agent information of an electric power selling company, listing electric quantity decomposition and the like, and comprises a listing transaction simulation algorithm based on listing transaction market clearing rules, so that functional simulation of transaction organization, listing and picking, safety check and the like of a wholesale market and a retail market is realized, and various unconstrained and constrained transaction results and executable transaction and scheduling plans are formed. And the historical quotation details of the market main body can be reversely deduced by combining a specific quantity-price distribution mathematical model based on an inversion model of historical trading information, so that the market trading trend and the game psychology can be deeply analyzed.
The auxiliary service commodity model is combined with outstanding contradictions and requirements of high-frequency large-amplitude system peak-load frequency modulation, partition layering reactive power balance, west-east power transmission, energy conservation and emission reduction and the like existing in the operation of a southern regional power grid, targeted paid auxiliary service transaction simulation is developed, and the combined optimization clearing function of an auxiliary service market and a spot energy market in the day before and in the day is realized. Specifically, frequency modulation and deep peak-shaving auxiliary service transactions are included.
And S213, combining and configuring the operation parameters and the commodity model to construct the power system operation model.
Based on the preset or self-defined generated commodity transaction varieties, the organizations of each electric power market are flexibly combined and configured, including flexibly processing transaction sequence coordination and network province transaction priority, so as to realize the complete market system simulation of a single market transaction variety or a plurality of varieties; meanwhile, the simulation trading period can be flexibly configured, the clearing of the full-flow market in one day can be simulated, the iterative operation condition of the panoramic power market under long-period rolling can also be simulated, and finally, a perfect power system operation model is constructed.
Preferably, the power system operation model includes a grid model, a unit model, load prediction, a tie line plan, and the like. The influence of the change of the power grid operation mode on the market can be simulated by increasing, reducing or modifying parameters of equipment in the power grid model; the unit model can be adjusted, the parameter change of the unit can be simulated, and the influence of efficiency improvement on market trading can be improved; the system load prediction value can be modified and adjusted, and the influence of load change on market clearing can be simulated and analyzed; the tie line plan can be modified, the influence of the west-east power transmission on the provincial electric power spot market can be analyzed and evaluated, and the electric power system operation model can be further improved by adjusting the parameters or the model in real time, so that the electric power system operation model is closer to the electric power system operation environment at the current stage and accords with the electric power market construction of China.
And S22, generating a corresponding power system operation result according to the power system operation model.
Further, step S22 is specifically executed by steps S221 to S222:
and S221, constructing a clearing model according with the electric power transaction mode according to the electric power system operation model.
S222, calling a preset clearing algorithm to solve the clearing model, and generating a clearing result of the electric power transaction as an operation result of the electric power system; the clearing algorithm comprises a medium-long term centralized matching clearing algorithm and a day-ahead and real-time scheduling plan optimization algorithm.
According to a market trading flow formed by the constructed power system operation model, relevant clearing models and clearing modes among the models are automatically generated, so that the method is suitable for various current and future power market trading modes to the maximum extent. The clearing model is solved by calling a preset clearing algorithm, the clearing algorithm comprises a medium-long term centralized matching clearing algorithm and a day-ahead and real-time scheduling plan optimization algorithm, certain decoupling is achieved with the optimization model, and the method can be applied to safety constraint unit combinations and economic scheduling models with different objective functions and different constraint conditions, so that the clearing model is accurately solved, and an electric power trading clearing result, namely an electric power system operation result, is generated.
And S23, carrying out power flow analysis and safety check on the operation result of the power system according to a preset reasonability analysis standard so as to judge the reasonability of the operation of the power system.
Further, step S23 is specifically executed by steps S231 to S233:
s231, acquiring electric power transaction information in the electric power system operation period according to the electric power system operation result; the electric power transaction information comprises medium and long term transaction information, day-ahead quotation information, day-ahead clearing results and day-in rolling clearing results.
And S232, carrying out real-time trend analysis and safety check on the electric power transaction information according to the preset reasonability analysis standard to obtain check information.
And S233, judging the running reasonability of the power system according to the checking information.
The electric power transaction information comprises electric power transaction information in an electric power system operation period, such as medium-long term transaction information, day-ahead quotation information, day-ahead clearing results, day-in-rolling clearing results and the like. And performing real-time power flow analysis and safety check according to a preset reasonability analysis standard by acquiring the electric power transaction information. The preset rationality analysis standard is a power flow threshold value set for the power flow size of all sections and lines in the power system. And the power flow threshold value of the line is set according to the physical characteristics of the power transmission line. For example, in order to meet the thermal stability of the power transmission line, the transmission capacity meeting the standard working condition limit is set as the power flow threshold of the line; similarly, the current threshold of the section is obtained by adopting the conventional calculation method of the thermal stability limit of the power transmission channel according to the physical characteristics of the power transmission section, and is not specifically limited herein. Analyzing the tidal current of all sections or lines in the electric power system, when the tidal current does not exceed the tidal current threshold value, indicating that the operating result of the electric power system passes through safety check, when the tidal current exceeds the tidal current threshold value, indicating that the operating result of the electric power system does not pass through safety check, thereby obtaining the check information. And judging whether the clearing result of the electric power trading market and the operation process of the electric power system are reasonable or not according to the checking information. And when the check information judges that the safety check is not passed, judging that the power system is unreasonable in operation, and when the check information judges that the safety check is passed, judging that the power system is reasonable in operation.
Further, the method for analyzing the operation rationality of the power system further includes steps S141 to S142:
and S141, outputting the operation result of the power system when the power system is judged to be reasonable in operation.
And S142, when the electric power system is judged to run unreasonably, revising the clearing model conforming to the electric power transaction mode, skipping to the step S222, calling a preset clearing algorithm to solve the clearing model, and generating a clearing result of the electric power transaction as the running result of the electric power system.
When the electric power system is judged to be operated reasonably, outputting the operation result of the electric power system, namely outputting the medium-long term transaction information, the day-ahead quotation information, the day-ahead clearing result, the day-in rolling clearing result and the like; when the electric power system is judged to be unreasonable in operation, a new clearing model which accords with an electric power transaction mode is obtained by modifying constraint conditions of corresponding sections or lines, the operation result of the electric power system is obtained by solving and calculating, and the reasonability of the operation result of the electric power system is further judged again.
According to the operation rationality analysis method of the power system, provided by the embodiment of the invention, the power system operation model is constructed by acquiring the data set of the operation environment of the power system. And adjusting and modifying parameters or models in the power system operation model to simulate the operation process of the actual power system. And constructing a clearing model conforming to the electric power transaction, calculating a corresponding electric power system operation result, and carrying out load flow analysis and safety check on the electric power system operation result in real time according to a preset rationality analysis standard so as to judge the rationality of the electric power system operation. And when the electric power system is judged to be unreasonable in operation, constructing a clear model and calculating the operation result of the electric power system again until the electric power system is judged to be reasonable in operation, and outputting the operation result of the electric power system. The method can effectively improve the accuracy and reliability of analysis on the running rationality of the power system, and improve the regulation and control and management effects on the running of the power system.
Fig. 3 is a schematic structural diagram of an operation rationality analysis apparatus for an electric power system according to a third embodiment of the present invention. The running rationality analysis device 30 of the power system comprises a system model building module 31, a running result generating module 32 and a rationality analysis module 33.
The system model building module 31 is configured to obtain a data set of an operating environment of the power system, and build an operating model of the power system; wherein the data set includes system data, unit data, plant data, unit group constraints, and tie line plan data for the power system.
The operation result generating module 32 is configured to generate a corresponding operation result of the power system according to the power system operation model.
And the rationality analysis module 33 is used for carrying out power flow analysis and safety check on the operation result of the power system according to a preset rationality analysis standard so as to judge the running rationality of the power system.
It should be noted that the operation rationality analysis apparatus for an electrical power system according to the embodiment of the present invention is used to execute all the process steps of the operation rationality analysis method for an electrical power system according to the first embodiment, and the working principles and beneficial effects of the two are in one-to-one correspondence, and therefore are not described again.
Further, referring to fig. 4, a schematic structural diagram of a preferred operation rationality analysis apparatus for an electric power system according to a fourth embodiment of the present invention is shown. The operating rationality analysis device 40 of the power system includes a system model construction module 41, an operating result generation module 42, and a rationality analysis module 43.
The system model building module 41 includes a parameter configuration module 411, a commodity building module 412, and a model organization module 413.
The parameter configuration module 411 is configured to obtain a data set of an operating environment of the power system, configure an operating parameter of the power system operating model, and set a corresponding constraint condition and a constraint relaxation priority.
The commodity construction module 412 is configured to construct a commodity model of the power transaction of the power system operation model; the commodity model includes commodity type and cost components.
The model organization module 413 is configured to combine and configure the operation parameters and the commodity model to construct the power system operation model.
The operation result generation module 42 includes a clearing model module 421 and a result solving module 422.
The clearing model module 421 is configured to construct a clearing model conforming to the electric power transaction mode according to the electric power system operation model.
The result solving module 422 is configured to invoke a preset clearing algorithm to solve the clearing model, and generate a clearing result of the power transaction as an operation result of the power system; the clearing algorithm comprises a medium-long term centralized matching clearing algorithm and a day-ahead and real-time scheduling plan optimization algorithm.
The rationality analyzing module 43 includes an information obtaining module 431, a security checking module 432, and a result judging module 433.
The information obtaining module 431 is configured to obtain, according to the operation result of the power system, power transaction information in the operation cycle of the power system; the electric power transaction information comprises medium and long term transaction information, day-ahead quotation information, day-ahead clearing results and day-in rolling clearing results.
And the safety check module 432 is used for performing real-time trend analysis and safety check on the electric power transaction information according to the preset rationality analysis standard to obtain check information.
And the result judging module 433 is used for judging the running reasonability of the power system according to the checking information.
It should be noted that, the operation rationality analysis apparatus for an electrical power system according to the embodiment of the present invention is configured to execute all the process steps of the operation rationality analysis method for an electrical power system according to the first embodiment or the second embodiment, and working principles and beneficial effects of the two are in one-to-one correspondence, and thus are not described again.
According to the operation rationality analysis device of the power system, provided by the embodiment of the invention, the data set of the operation environment of the power system is obtained, the power system operation model is constructed to simulate the operation process of the actual power system, the corresponding power system operation result is generated, and the power flow analysis and safety check are carried out on the power system operation result in real time according to the preset rationality analysis standard so as to judge the operation rationality of the power system. The method can effectively improve the accuracy and reliability of analysis on the running rationality of the power system, and improve the regulation and control and management effects on the running of the power system.
The fifth embodiment of the present invention further provides an operation rationality analyzing apparatus 50 for an electric power system, including a processor 51, a memory 52, and a computer program stored in the memory and configured to be executed by the processor, wherein the processor implements the operation rationality analyzing method for an electric power system according to any one of the first and second aspects when executing the computer program.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (8)
1. An operation rationality analysis method of an electric power system, characterized by comprising:
acquiring a data set of the operating environment of the power system, and constructing a power system operating model; wherein the data set includes system data, unit data, plant data, unit group constraints, and tie line plan data for the power system;
generating a corresponding power system operation result according to the power system operation model;
according to a preset rationality analysis standard, carrying out power flow analysis and safety check on the operation result of the power system so as to judge the operation rationality of the power system;
the acquiring of the data set of the operating environment of the power system and the constructing of the power system operation model specifically include:
acquiring a data set of the operating environment of the power system, configuring operating parameters of an operating model of the power system, and setting corresponding constraint conditions and constraint relaxation priorities;
building a commodity model of the power transaction of the power system operation model; the commodity model comprises commodity types and cost composition;
and combining and configuring the operating parameters and the commodity model to construct the power system operating model.
2. The method for analyzing the running rationality of the power system according to claim 1, wherein the generating a corresponding power system running result according to the power system running model specifically includes:
constructing a clearing model conforming to the electric power transaction mode according to the electric power system operation model;
calling a preset clearing algorithm to solve the clearing model, and generating a clearing result of the electric power transaction as an operation result of the electric power system; the clearing algorithm comprises a medium-long term centralized matching clearing algorithm and a day-ahead and real-time scheduling plan optimization algorithm.
3. The method for analyzing the running rationality of the power system according to claim 2, wherein the power flow analysis and the safety check are performed on the running result of the power system according to a preset rationality analysis standard to judge the running rationality of the power system, and specifically comprises the following steps:
acquiring electric power transaction information in the electric power system operation period according to the electric power system operation result; the electric power transaction information comprises medium-long term transaction information, day-ahead quotation information, a day-ahead clearing result and a day-in rolling clearing result;
according to the preset rationality analysis standard, carrying out real-time power flow analysis and safety check on the electric power transaction information to obtain check information;
and judging the running reasonability of the power system according to the checking information.
4. A running rationality analyzing method for an electric power system according to claim 2 or 3, characterized by further comprising the steps of:
when the electric power system is judged to be reasonably operated, outputting an operation result of the electric power system;
and when the electric power system is judged to be unreasonable in operation, revising the clearing model conforming to the electric power transaction mode, calling a preset clearing algorithm to solve the clearing model, and generating a clearing result of the electric power transaction as an operation result of the electric power system.
5. The utility model provides an operation rationality analytical equipment of electric power system which characterized in that includes system model construction module, operation result generation module and rationality analysis module:
the system model building module is used for acquiring a data set of the operating environment of the power system and building an operating model of the power system; wherein the data set includes system data, unit data, plant data, unit group constraints, and tie line plan data for the power system;
the operation result generation module is used for generating a corresponding power system operation result according to the power system operation model;
the rationality analysis module is used for carrying out power flow analysis and safety check on the operation result of the power system according to a preset rationality analysis standard so as to judge the running rationality of the power system;
the system model building module comprises a parameter configuration module, a commodity building module and a model organization module:
the parameter configuration module is used for acquiring a data set of the operating environment of the power system, configuring the operating parameters of the operating model of the power system, and setting corresponding constraint conditions and constraint relaxation priorities;
the commodity construction module is used for constructing a commodity model of the power transaction of the power system operation model; the commodity model comprises commodity types and cost composition;
and the model organization module is used for combining and configuring the operation parameters and the commodity model so as to construct the power system operation model.
6. The running rationality analysis apparatus for an electric power system according to claim 5, wherein the running result generation module includes a clear model module and a result solving module:
the clearing model module is used for constructing a clearing model conforming to an electric power transaction mode according to the electric power system operation model;
the result solving module is used for calling a preset clearing algorithm to solve the clearing model, and generating a clearing result of the electric power transaction as an operation result of the electric power system; the clearing algorithm comprises a medium-long term centralized matching clearing algorithm and a day-ahead and real-time scheduling plan optimization algorithm.
7. The running rationality analysis device of an electric power system according to claim 5, wherein the rationality analysis module includes an information acquisition module, a security check module, and a result judgment module:
the information acquisition module is used for acquiring electric power transaction information in the electric power system operation period according to the electric power system operation result; the electric power transaction information comprises medium-long term transaction information, day-ahead quotation information, a day-ahead clearing result and a day-in rolling clearing result;
the safety check module is used for carrying out real-time power flow analysis and safety check on the electric power transaction information according to the preset reasonableness analysis standard to obtain check information;
and the result judgment module is used for judging the running reasonability of the power system according to the checking information.
8. An operating rationality analysis apparatus for an electric power system, characterized by comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, the processor implementing the operating rationality analysis method for an electric power system according to any one of claims 1 to 4 when executing the computer program.
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| CN105260846A (en) * | 2015-10-21 | 2016-01-20 | 中国电力科学研究院 | Rationality assessment method for power system scheduling strategy |
| CN108599168A (en) * | 2018-03-30 | 2018-09-28 | 中国电力科学研究院有限公司 | A kind of method and system for carrying out reasonable evaluation to bulk power grid plan trend |
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| CN101794424A (en) * | 2010-01-29 | 2010-08-04 | 华东电网有限公司 | Self-adaptive unified power market transaction method |
| CN105260846A (en) * | 2015-10-21 | 2016-01-20 | 中国电力科学研究院 | Rationality assessment method for power system scheduling strategy |
| CN108599168A (en) * | 2018-03-30 | 2018-09-28 | 中国电力科学研究院有限公司 | A kind of method and system for carrying out reasonable evaluation to bulk power grid plan trend |
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