CN112767018A - Provincial and intra-provincial power market coupling clearing method, system, device and medium - Google Patents
Provincial and intra-provincial power market coupling clearing method, system, device and medium Download PDFInfo
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Abstract
The invention belongs to the field of power automation, and discloses a method, a system, equipment and a medium for coupling clearing of provincial and intra-provincial power markets, which comprise the following steps: acquiring inter-provincial power clear price and intra-provincial load side clear price of each electricity purchasing province in an inter-provincial and intra-provincial power market, adjusting inter-provincial clear demand power of each electricity purchasing province according to the inter-provincial power clear price and the intra-provincial load side clear price of each electricity purchasing province, iteratively performing inter-provincial power clear and intra-provincial power clear of each province according to the adjusted inter-provincial clear demand power of each electricity purchasing province by taking the lowest clear cost as a clear target, and obtaining a final inter-provincial power clear result and an intra-provincial power clear result after preset conditions are reached; and generating a power generation and utilization plan of each province according to the final inter-provincial power clearing result and the intra-provincial power clearing result. By adopting the iterative coupling clearing method, the problem that the existing power generation and utilization plan is easy to cause resource waste is solved, and the power generation and utilization cost is effectively reduced.
Description
Technical Field
The invention belongs to the field of power automation, and relates to a method, a system, equipment and a medium for coupling clearing of provincial and intra-provincial power markets.
Background
With the continuous release of the power generation and utilization plan, the inter-provincial and intra-provincial power market trading volume is remarkably increased, and the demand of the market main body for participating in the inter-provincial and intra-provincial trading is continuously improved. The inter-provincial market is positioned in an energy strategy, energy consumption and large-range optimal configuration of energy resources are promoted, the intra-provincial market is positioned in an optimal intra-provincial resource configuration, and power supply and demand balance and safe operation of a power grid are guaranteed. On the other hand, with the rapid development of the extra-high voltage AC and DC channels, very favorable conditions are provided for the large-scale development of inter-provincial market trading.
However, at present, a smooth and tight connection mechanism is lacked between the inter-provincial market and the intra-provincial market, the transaction operation processes are independent, the inter-provincial market is only used as a locked boundary condition to participate in the intra-provincial market, the optimal allocation of market resources is difficult to be exerted to the maximum extent, the functional connection of the inter-provincial market allocation resources and the intra-provincial market guarantee balance cannot be realized, the established power generation and utilization plan is easy to cause resource waste, and the power generation and utilization cost is increased.
Disclosure of Invention
The present invention is directed to overcome the above-mentioned disadvantages of the prior art, such as resource waste and power generation cost increase, caused by the fact that the current provincial and provincial market clearing result only participates in the provincial and provincial markets as a locked boundary condition, and provides a provincial and provincial power market coupling clearing method, system, device and medium.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
in a first aspect of the present invention, a method for coupling clearing in provincial and intra-provincial power markets comprises the following steps:
acquiring inter-provincial power clear price and intra-provincial load side clear price of each power purchasing province in inter-provincial and intra-provincial power markets; according to the inter-provincial electricity clear price of each electricity purchasing province and the intra-provincial load side clear price, adjusting the inter-provincial clear demand electricity of each electricity purchasing province, according to the adjusted inter-provincial clear demand electricity of each electricity purchasing province, taking the clear cost as the clear target, clearing the inter-provincial electricity and the intra-provincial electricity of each province to obtain an inter-provincial electricity clear result and an intra-provincial electricity clear result, and updating the inter-provincial electricity clear price and the intra-provincial load side clear price of each electricity purchasing province according to the inter-provincial electricity clear result and the intra-provincial electricity clear result; iterating the step until the absolute value of the difference between the inter-provincial power clear price and the intra-provincial load side clear price of any power purchasing province is smaller than a preset threshold value or reaches a preset iteration number, and obtaining a final inter-provincial power clear result and an intra-provincial power clear result; and generating a power generation and utilization plan of each province according to the final inter-provincial power clearing result and the intra-provincial power clearing result.
The provincial and intra-provincial electric power market coupling clearing method is further improved as follows:
the specific method for acquiring the inter-provincial power clear price and the intra-provincial load side clear price of each power purchasing province in the inter-provincial and intra-provincial power markets comprises the following steps: acquiring a power system network model, scheduling parameters, power generation quotation information of each power selling province and power utilization quotation information of each power purchasing province of an inter-province and intra-province power market; based on the power system network models and scheduling parameters of the inter-provincial and intra-provincial power markets, clearing the inter-provincial power markets and clearing the intra-provincial power markets of the provinces according to the power generation quotation information of each power selling province and the power utilization quotation information of each power purchasing province to obtain inter-provincial power clearing results and intra-provincial power clearing results; and obtaining the inter-provincial power clear price and the intra-provincial load side clear price of each electricity purchasing province according to the inter-provincial power clear result and the intra-provincial power clear result.
The electricity generation quotation information of each electricity selling province comprises electricity generation power information and electricity generation price information of each unit of each electricity selling province; the electricity price information of each electricity purchasing province comprises load demand electricity and electricity price information of each electricity purchasing province.
The power system network model comprises: the system comprises an inter-provincial alternating current tie line, an inter-provincial direct current tie line, an intra-provincial easily-blocked alternating current section, each unit node information and virtual load node information of each electricity purchasing province; the scheduling parameters include: the available transmission capacity of the inter-provincial ac link, the inter-provincial dc link, and the intra-provincial easily-blocked ac section, and the sensitivity of each unit node information and each virtual load node information of each power purchasing province to the inter-provincial ac link, the inter-provincial dc link, and the intra-provincial easily-blocked ac section, respectively.
The specific method for adjusting the inter-provincial clear power demand of each power purchasing province according to the inter-provincial power clear power price and the intra-provincial load side clear power price of each power purchasing province comprises the following steps: when the inter-provincial clear electricity price of the electricity purchasing province is greater than the intra-provincial load side clear electricity price, the inter-provincial clear electricity demand electricity of the electricity purchasing province is adjusted and reduced; otherwise, the clear demand power is output from the provincial power of the power purchasing province.
The specific method for regulating the inter-provincial clear output required power of the electricity purchasing province comprises the following steps: adjusting and reducing inter-provincial clear discharge required power of the power purchasing provinces according to a preset percentage; the specific method for adjusting and increasing the inter-provincial clear demand power of the electricity purchasing province comprises the following steps: and adjusting the inter-provincial clear output required power of the additional electricity purchasing province according to the preset percentage.
When inter-provincial electric power clearing and intra-provincial electric power clearing of each province are carried out, the quoted price information of each market subject of the electricity purchasing province and the electricity selling province participating in the intra-provincial electric power clearing is consistent with the inter-provincial electric power clearing time of the market subject.
In a second aspect of the invention, a provincial and intra-provincial power market coupling clearing system comprises;
the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring inter-provincial power clear price and intra-provincial load side clear price of each power purchasing province in an inter-provincial and intra-provincial power market;
the clearing module is used for adjusting clear electricity required by clearing the province of each electricity purchasing province according to the clear electricity price of the province of each electricity purchasing province and clear electricity price of the province side of the inter-load side, clearing the province of each electricity purchasing province and clearing the intra-load side of each electricity purchasing province according to the adjusted clear electricity required by clearing the province of each electricity purchasing province with the lowest clearing cost as a clearing target to obtain a clear electricity clearing result and a clear electricity clearing result of the province and the intra-load side of each province, and updating the clear electricity price of the province of each electricity purchasing province and the clear electricity price of the intra-load side of the inter-load side according to the clear electricity clearing result of the province and the clear electricity clearing result of the intra-load side;
the iteration module is used for iteratively triggering the clearing module to obtain a final inter-provincial electric power clearing result and an intra-provincial electric power clearing result, wherein absolute values of differences between inter-provincial electric power clearing prices of any one of the electricity purchasing provinces and the intra-provincial load side clearing prices are smaller than a preset threshold value or reach preset iteration times;
and the generating module is used for generating the power generation and utilization plan of each province according to the final inter-province power clearing result and the intra-province power clearing result.
In a third aspect of the present invention, a computer device comprises a memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the above-mentioned inter-and intra-provincial power market coupling-out method when executing the computer program.
In a fourth aspect of the invention, a computer readable storage medium has stored thereon a computer program which, when being executed by a processor, carries out the steps of the above-mentioned inter-and intra-provincial electricity market coupling-out method.
Compared with the prior art, the invention has the following beneficial effects:
according to the inter-provincial and intra-provincial power market coupling clearing method, inter-provincial clearing demand power of each power purchasing province is adjusted according to the inter-provincial power clearing price and the intra-provincial load side clearing price, inter-provincial power clearing and intra-provincial power clearing are performed in an iterative mode according to the adjusted inter-provincial clearing demand power of each power purchasing province, the inter-provincial power clearing price and the intra-provincial load side clearing price of each power purchasing province are updated in an iterative mode until preset conditions are met, a final inter-provincial power clearing result and an intra-provincial power clearing result are obtained, and then a power generation and utilization plan of each province is generated according to the final inter-provincial power clearing result and the intra-provincial power clearing result. By adopting the inter-provincial power clearing and intra-provincial power clearing coupling iterative clearing method, the problem that the market resource optimal allocation effect is difficult to exert to the maximum extent due to the fact that the inter-provincial clearing and intra-provincial clearing processes are independent from each other is solved, the inter-provincial power trading barrier is further broken, the advantage complementation of inter-regional power generation resources is effectively promoted, the transmission capacity of the extra-high voltage AC/DC channel is fully exerted, the interest relationship among all market members is better coordinated, the operation plan of each unit established by clearing results is effectively avoided, the resource waste is effectively avoided, and the power generation and utilization cost is reduced to a certain extent.
Drawings
FIG. 1 is a flowchart of a provincial and intra-provincial power market coupling clearing method according to an embodiment of the present invention;
FIG. 2 is a detailed flowchart of the provincial and intra-provincial power market coupling clearing method according to the embodiment of the present invention;
FIG. 3 is a block diagram of an inter-and intra-provincial power market coupled-out system according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, 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.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The invention is described in further detail below with reference to the accompanying drawings:
referring to fig. 1, in an embodiment of the present invention, an inter-provincial and intra-provincial power market coupling clearing method is provided, and by using an inter-provincial and intra-provincial power market coupling iterative trading mode and a two-stage inter-market power and electricity price coupling method, a problem that optimal allocation of market resources is difficult to be performed to the maximum extent due to independent inter-provincial and intra-provincial trading processes is solved, thereby facilitating further breaking inter-provincial power trading barriers, effectively promoting advantage complementation of inter-regional power generation resources, fully performing the transmission capability of an extra-high voltage ac/dc channel, better coordinating the interest relationship among various market members, further avoiding resource waste caused by an established power generation plan, and greatly reducing the power generation and utilization cost.
Specifically, the inter-provincial and intra-provincial power market coupling clearing method comprises the following steps:
s1: and acquiring the inter-provincial power clear price and the intra-provincial load side clear price of each power purchasing province in the inter-provincial and intra-provincial power markets.
The inter-provincial and intra-provincial power markets comprise an inter-provincial power market and an intra-provincial power market, in an area comprising a plurality of provinces, a power market constructed by power systems formed by power combination among the provinces is the inter-provincial power market, and a power market constructed by respective power systems of the provinces is the intra-provincial power market.
Specifically, the specific method for obtaining the inter-provincial clearing result and the intra-provincial clearing result of each unit in the inter-provincial and intra-provincial power markets comprises the following steps: acquiring a power system network model, scheduling parameters, power generation quotation information of each power selling province and power utilization quotation information of each power purchasing province of an inter-province and intra-province power market; based on the power system network models and scheduling parameters of the inter-provincial and intra-provincial power markets, clearing the inter-provincial power markets and clearing the intra-provincial power markets of the various provinces by taking the lowest clearing cost as a clearing target according to power generation quotation information of the various power selling provinces and power consumption quotation information of the various power purchasing provinces, wherein clearing based on sensitivity is generally carried out to obtain inter-provincial power clearing results and intra-provincial power clearing results; and obtaining the inter-provincial power clear price and the intra-provincial load side clear price of each electricity purchasing province according to the inter-provincial power clear result and the intra-provincial power clear result. The lowest clearing cost is the clearing target, namely the maximization of the general social welfare can be realized after clearing.
The system comprises a plurality of market bodies, a trading center, a plurality of power generation/power utilization main bodies, a plurality of power generation main bodies and a plurality of power consumption main bodies, wherein each market body reports power generation/power utilization quotation information with curves to the trading center, the power generation main bodies of each power selling province directly report power generation information and power generation price information by taking a unit as a unit, and load demand power and price information of each power purchasing province power utilization main body are aggregated by taking a province as a unit to obtain clear demand power between provinces and clear price between provinces for reporting.
When inter-provincial power market clearing and intra-provincial power market clearing of each province are carried out, trade type and scheduling type parameters need to be collected, and then sensitivity-based clearing can be carried out. Wherein the transaction parameters include: 1) each market main body declares power generation/utilization quotation information with curves to a trading center; 2) power system network models for the inter-and intra-provincial power markets. The network model of the power system in the inter-provincial and intra-provincial power markets referred to herein includes a network model of the power system of each province and a network model of the power system between each province, and these pieces of information already exist after the power system is constructed and can be generally acquired from a dispatching agency or a trading agency of the power system.
Preferably, in this embodiment, in order to facilitate clearing, the power system network model in the inter-provincial and intra-provincial power markets is simplified, and only the inter-provincial ac tie, the inter-provincial dc tie, the intra-provincial easy-to-block ac cross section, the unit node information, and the virtual load node information of each power purchasing province in the power system network model need to be acquired, so as to construct a simplified power system network model, thereby achieving a simpler clearing process. Based on this, the scheduling class parameters include: 1) the inter-provincial alternating current connecting line, the inter-provincial direct current connecting line and the available power transmission capacity of the intra-provincial easily-blocked alternating current section; 2) the sensitivity of each unit node information and the virtual load node information of each power purchasing province to an inter-provincial alternating current connecting line, an inter-provincial direct current connecting line and an intra-provincial easily-blocked alternating current section is respectively high. These scheduling class parameters may also be obtained from the scheduling authority of the power system.
S2: according to the inter-provincial power clear price and the intra-provincial load side clear price of each power purchasing province, adjusting the inter-provincial clear demand power of each power purchasing province, according to the adjusted inter-provincial clear demand power of each power purchasing province, taking the clear cost as the lowest clear target, performing inter-provincial power clear and intra-provincial power clear of each province to obtain an inter-provincial power clear result and an intra-provincial power clear result, and updating the inter-provincial power clear price and the intra-provincial load side clear price of each power purchasing province according to the inter-provincial power clear result and the intra-provincial power clear result.
Specifically, referring to fig. 2, in the embodiment, the inter-provincial power clear price and the intra-provincial load clear price of the electricity purchasing province are used as the basis of iterative coupling clearing, and the association relationship between the inter-provincial power market clearing and the intra-provincial power market clearing is established, so that the difference between the inter-provincial power clear price and the intra-provincial load clear price is continuously reduced, and the coupling of the power price and the electricity price between the inter-provincial power market and the intra-provincial power market is realized.
The specific method for adjusting the inter-provincial clear power demand of each power purchasing province according to the inter-provincial power clear power price and the intra-provincial load side clear power price of each power purchasing province comprises the following steps: when the inter-provincial clear electricity price of the electricity purchasing province is greater than the intra-provincial load side clear electricity price, the inter-provincial clear electricity demand electricity of the electricity purchasing province is adjusted and reduced; otherwise, the inter-provincial clear output required power of the electricity purchasing province is adjusted, in this embodiment, when the inter-provincial clear output required power of the electricity purchasing province is adjusted, the inter-provincial clear output required power of the electricity purchasing province is adjusted or increased according to a preset percentage, when the specific adjustment is performed, the specific adjustment is generally adjusted according to the percentage of the inter-provincial clear output required power, such as 5% or 10%, the specific proportion is obtained according to repeated measurement and calculation of an actual case, and the adjustment can also be performed according to other adjustment strategies, which is not limited to this. Wherein, the inter-provincial clear power demand of the electricity purchasing province is the synthesis of the inter-provincial clear power demand of each electricity main body in the electricity purchasing province.
When inter-provincial power market clearing and intra-provincial power market clearing of each province are carried out, the un-bid winning machine set which is cleared by the inter-provincial power market directly participates in the intra-provincial power market clearing of each province; the clear power of the winning bid unit in the provincial power market is aggregated and then used as the clear external power to participate in the clear in the provincial power market of the power purchasing province. Wherein, when inter-provincial electric power clearing and intra-provincial electric power clearing of each province are carried out, the quotation information of the intra-provincial electric power clearing participated by each market main body of the electricity purchasing province and the electricity selling province is consistent with the inter-provincial electric power clearing participated by the market main body of the electricity purchasing province and the electricity selling province.
By iterating step S2 until the absolute value of the difference between the inter-provincial power clear price and the intra-provincial load side clear price of any electricity purchasing province is less than the preset threshold or reaches the preset iteration number, the final inter-provincial power clear result and intra-provincial power clear result are obtained.
In the iteration process, after each iteration, comparing the absolute value of the difference between the inter-provincial power clear price and the intra-provincial load side clear price of each electricity purchasing province with a preset threshold value, and if the absolute value is less than or equal to the preset threshold value, ending the iteration clear process. The preset threshold is generally set according to a market-based rule, and may be set to 0.01-0.001 yuan, but is not limited thereto. Otherwise, comparing the iteration times of inter-provincial power market clearing and intra-provincial power market clearing of each province; if the number of iterations is greater than or equal to the preset number of iterations, the iterative clearing process is ended; if the number of iterations is less than the preset number, adjusting the inter-provincial clearing demand power of each electricity purchasing province, and then re-performing inter-provincial power market clearing and intra-provincial power market clearing of each province so as to circulate. The preset iteration number is generally set according to a market-based rule and can be set to be 3-5 times, but the preset iteration number is not limited to this.
And after the iteration is finished, taking the inter-provincial power clearing result and the intra-provincial power clearing result obtained in the last iteration as a final inter-provincial power clearing result and an intra-provincial power clearing result.
S3: and generating a power generation and utilization plan of each province according to the final inter-provincial power clearing result and the intra-provincial power clearing result. The power generation and utilization plan comprises a power generation plan of each provincial unit and an provincial load side power utilization plan.
Specifically, the inter-provincial electricity clearing result comprises inter-provincial clear electricity price and clear electricity of each unit of electricity selling provinces and inter-provincial clear electricity price and clear electricity of each electricity purchasing province, and the intra-provincial electricity clearing result comprises inter-provincial clear electricity price and clear electricity of each unit of electricity selling provinces and intra-provincial load side clear electricity price and clear electricity.
The inter-provincial clearing result can also comprise the occupation conditions of inter-provincial alternating current connecting lines and direct current connecting lines and tidal current information of intra-provincial easily-blocked alternating current sections, the intra-provincial power clearing result comprises the tidal current information of intra-provincial easily-blocked alternating current sections, and the occupation conditions of the inter-provincial alternating current connecting lines and the inter-provincial direct current connecting lines are generally submitted to a national power dispatching center, and the tidal current information of the intra-provincial easily-blocked alternating current sections is submitted to each provincial power dispatching center.
In summary, according to the inter-provincial and intra-provincial power market coupling clearing method, inter-provincial power clearing prices and intra-provincial load side clearing prices of each power-purchasing province in the inter-provincial and intra-provincial power market are obtained, inter-provincial power clearing and intra-provincial power clearing are iteratively performed according to the inter-provincial power clearing prices and the intra-provincial load side clearing prices, the inter-provincial power clearing prices and the intra-provincial load side clearing prices of each power-purchasing province are further iteratively updated, the absolute value of the difference between the inter-provincial power clearing prices and the intra-provincial load side clearing prices of any power-purchasing province is smaller than the preset threshold or reaches the preset iteration number, the final inter-provincial power clearing result and intra-provincial power clearing result is obtained, and the power generation and utilization plans of each power province are generated according to the final inter-provincial power clearing result and the intra-provincial power clearing result. By adopting the inter-provincial power clearing and intra-provincial power clearing coupling iterative clearing method, the problem that the market resource optimal allocation effect is difficult to exert to the maximum extent due to the fact that the inter-provincial clearing and intra-provincial clearing processes are independent from each other is solved, the inter-provincial power trading barrier is further broken, the advantage complementation of inter-regional power generation resources is effectively promoted, the transmission capacity of the extra-high voltage AC/DC channel is fully exerted, the interest relationship among all market members is better coordinated, the operation plan of each unit established by clearing results is effectively avoided, the resource waste is effectively avoided, and the power generation and utilization cost is reduced to a certain extent.
The following are embodiments of the apparatus of the present invention that may be used to perform embodiments of the method of the present invention. For details of non-careless mistakes in the embodiment of the apparatus, please refer to the embodiment of the method of the present invention.
Referring to fig. 3, in another embodiment of the present invention, an inter-provincial and intra-provincial power market coupling clearing system is provided, which can be used to implement the inter-provincial and intra-provincial power market coupling clearing method described above, and specifically, the inter-provincial and intra-provincial power market coupling clearing system includes an obtaining module, a clearing module, an iteration module, and a generating module.
The system comprises an acquisition module, a display module and a display module, wherein the acquisition module is used for acquiring inter-provincial power clear price and intra-provincial load side clear price of each power purchasing province in an inter-provincial and intra-provincial power market; the clearing module is used for adjusting clear electricity clearing requirement electricity between the provinces of the electricity purchasing provinces according to the clear electricity between the provinces of the electricity purchasing provinces and clear electricity between the province side of the inner load, clearing the clear electricity between the provinces of the electricity purchasing provinces and clearing the inner electricity between the provinces of the electricity purchasing provinces according to the adjusted clear electricity required between the provinces of the electricity purchasing provinces by taking the lowest clearing cost as a clearing target, obtaining clear results of the inter-province electricity and the inner electricity, and updating the clear electricity between the provinces of the electricity purchasing provinces and the clear electricity between the inner load side of the electricity purchasing province according to the clear results of the inter-province electricity and the inner electricity; the iteration module is used for iteratively triggering the clearing module to obtain a final inter-provincial electric power clearing result and an intra-provincial electric power clearing result, wherein absolute values of differences between inter-provincial electric power clearing prices of any one electricity purchasing province and the intra-provincial load side clearing prices are smaller than a preset threshold value or reach preset iteration times; the generating module is used for generating power generation and utilization plans of all provinces according to the final inter-provincial power clearing result and the intra-provincial power clearing result.
In yet another embodiment of the present invention, a terminal device is provided that includes a processor and a memory for storing a computer program comprising program instructions, the processor being configured to execute the program instructions stored by the computer storage medium. The Processor may be a Central Processing Unit (CPU), or may be other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable gate array (FPGA) or other Programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, etc., which is a computing core and a control core of the terminal, and is adapted to implement one or more instructions, and is specifically adapted to load and execute one or more instructions to implement a corresponding method flow or a corresponding function; the processor of the embodiment of the invention can be used for the operation of the provincial and intra-provincial power market coupling clearing method, and comprises the following steps: acquiring inter-provincial power clear price and intra-provincial load side clear price of each power purchasing province in inter-provincial and intra-provincial power markets; according to the inter-provincial electricity clear price of each electricity purchasing province and the intra-provincial load side clear price, adjusting the inter-provincial clear demand electricity of each electricity purchasing province, according to the adjusted inter-provincial clear demand electricity of each electricity purchasing province, taking the clear cost as the clear target, clearing the inter-provincial electricity and the intra-provincial electricity of each province to obtain an inter-provincial electricity clear result and an intra-provincial electricity clear result, and updating the inter-provincial electricity clear price and the intra-provincial load side clear price of each electricity purchasing province according to the inter-provincial electricity clear result and the intra-provincial electricity clear result; iterating the step until the absolute value of the difference between the inter-provincial power clear price and the intra-provincial load side clear price of any power purchasing province is smaller than a preset threshold value or reaches a preset iteration number, and obtaining a final inter-provincial power clear result and an intra-provincial power clear result; and generating a power generation and utilization plan of each province according to the final inter-provincial power clearing result and the intra-provincial power clearing result.
In still another embodiment of the present invention, the present invention further provides a storage medium, specifically a computer-readable storage medium (Memory), which is a Memory device in a terminal device and is used for storing programs and data. It is understood that the computer readable storage medium herein may include a built-in storage medium in the terminal device, and may also include an extended storage medium supported by the terminal device. The computer-readable storage medium provides a storage space storing an operating system of the terminal. Also, one or more instructions, which may be one or more computer programs (including program code), are stored in the memory space and are adapted to be loaded and executed by the processor. It should be noted that the computer-readable storage medium may be a high-speed RAM memory, or may be a non-volatile memory (non-volatile memory), such as at least one disk memory.
One or more instructions stored in a computer-readable storage medium may be loaded and executed by a processor to perform the corresponding steps of the above-described embodiments with respect to the inter-and intra-provincial power market coupling-out method; one or more instructions in the computer-readable storage medium are loaded by the processor and perform the steps of: acquiring inter-provincial power clear price and intra-provincial load side clear price of each power purchasing province in inter-provincial and intra-provincial power markets; according to the inter-provincial electricity clear price of each electricity purchasing province and the intra-provincial load side clear price, adjusting the inter-provincial clear demand electricity of each electricity purchasing province, according to the adjusted inter-provincial clear demand electricity of each electricity purchasing province, taking the clear cost as the clear target, clearing the inter-provincial electricity and the intra-provincial electricity of each province to obtain an inter-provincial electricity clear result and an intra-provincial electricity clear result, and updating the inter-provincial electricity clear price and the intra-provincial load side clear price of each electricity purchasing province according to the inter-provincial electricity clear result and the intra-provincial electricity clear result; iterating the step until the absolute value of the difference between the inter-provincial power clear price and the intra-provincial load side clear price of any power purchasing province is smaller than a preset threshold value or reaches a preset iteration number, and obtaining a final inter-provincial power clear result and an intra-provincial power clear result; and generating a power generation and utilization plan of each province according to the final inter-provincial power clearing result and the intra-provincial power clearing result.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.
Claims (10)
1. An inter-provincial and intra-provincial power market coupling clearing method is characterized by comprising the following steps:
acquiring inter-provincial power clear price and intra-provincial load side clear price of each power purchasing province in inter-provincial and intra-provincial power markets;
according to the inter-provincial electricity clear price of each electricity purchasing province and the intra-provincial load side clear price, adjusting the inter-provincial clear demand electricity of each electricity purchasing province, according to the adjusted inter-provincial clear demand electricity of each electricity purchasing province, taking the clear cost as the clear target, clearing the inter-provincial electricity and the intra-provincial electricity of each province to obtain an inter-provincial electricity clear result and an intra-provincial electricity clear result, and updating the inter-provincial electricity clear price and the intra-provincial load side clear price of each electricity purchasing province according to the inter-provincial electricity clear result and the intra-provincial electricity clear result; iterating the step until the absolute value of the difference between the inter-provincial power clear price and the intra-provincial load side clear price of any power purchasing province is smaller than a preset threshold value or reaches a preset iteration number, and obtaining a final inter-provincial power clear result and an intra-provincial power clear result;
and generating a power generation and utilization plan of each province according to the final inter-provincial power clearing result and the intra-provincial power clearing result.
2. The inter-provincial and intra-provincial power market coupling clearing method according to claim 1, wherein the specific method for acquiring the inter-provincial power clearing price and the intra-provincial load side clearing price of each power purchasing province in the inter-provincial and intra-provincial power market is as follows:
acquiring a power system network model, scheduling parameters, power generation quotation information of each power selling province and power utilization quotation information of each power purchasing province of an inter-province and intra-province power market;
based on the power system network models and scheduling parameters of the inter-provincial and intra-provincial power markets, clearing the inter-provincial power markets and clearing the intra-provincial power markets of the provinces according to the power generation quotation information of each power selling province and the power utilization quotation information of each power purchasing province to obtain inter-provincial power clearing results and intra-provincial power clearing results;
and obtaining the inter-provincial power clear price and the intra-provincial load side clear price of each electricity purchasing province according to the inter-provincial power clear result and the intra-provincial power clear result.
3. The inter-provincial and intra-provincial electric power market coupling-out method according to claim 2, wherein the electricity generation quotation information of each electricity selling province includes electricity generation power information and electricity generation price information of each unit of each electricity selling province; the electricity price information of each electricity purchasing province comprises load demand electricity and electricity price information of each electricity purchasing province.
4. The provincial and intra-provincial power market outcoupling method of claim 2, wherein the power system network model comprises: the system comprises an inter-provincial alternating current tie line, an inter-provincial direct current tie line, an intra-provincial easily-blocked alternating current section, each unit node information and virtual load node information of each electricity purchasing province;
the scheduling parameters include: the available transmission capacity of the inter-provincial ac link, the inter-provincial dc link, and the intra-provincial easily-blocked ac section, and the sensitivity of each unit node information and each virtual load node information of each power purchasing province to the inter-provincial ac link, the inter-provincial dc link, and the intra-provincial easily-blocked ac section, respectively.
5. The inter-provincial and intra-provincial power market coupling clearing method according to claim 1, wherein the specific method of adjusting the inter-provincial clear demand power of each power purchasing province according to the inter-provincial power clearing price and the intra-provincial load side clearing price of each power purchasing province is:
when the inter-provincial clear electricity price of the electricity purchasing province is greater than the intra-provincial load side clear electricity price, the inter-provincial clear electricity demand electricity of the electricity purchasing province is adjusted and reduced; otherwise, the clear demand power is output from the provincial power of the power purchasing province.
6. The provincial and intra-provincial power market coupling clearing method according to claim 5, wherein the specific method for reducing the provincial clearing demand power of the electricity purchasing province is as follows: adjusting and reducing inter-provincial clear discharge required power of the power purchasing provinces according to a preset percentage; the specific method for adjusting and increasing the inter-provincial clear demand power of the electricity purchasing province comprises the following steps: and adjusting the inter-provincial clear output required power of the additional electricity purchasing province according to the preset percentage.
7. The inter-provincial and intra-provincial power market coupling clearing method according to claim 1, wherein when inter-provincial power clearing and intra-provincial power clearing of each province are performed, the quoted information of each market subject participating in intra-provincial power clearing of the electricity purchasing province and the electricity selling province is consistent with the inter-provincial power clearing time of the participation thereof.
8. An inter-provincial and intra-provincial power market coupling clearing system is characterized by comprising;
the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring inter-provincial power clear price and intra-provincial load side clear price of each power purchasing province in an inter-provincial and intra-provincial power market;
the clearing module is used for adjusting clear electricity required by clearing the province of each electricity purchasing province according to the clear electricity price of the province of each electricity purchasing province and clear electricity price of the province side of the inter-load side, clearing the province of each electricity purchasing province and clearing the intra-load side of each electricity purchasing province according to the adjusted clear electricity required by clearing the province of each electricity purchasing province with the lowest clearing cost as a clearing target to obtain a clear electricity clearing result and a clear electricity clearing result of the province and the intra-load side of each province, and updating the clear electricity price of the province of each electricity purchasing province and the clear electricity price of the intra-load side of the inter-load side according to the clear electricity clearing result of the province and the clear electricity clearing result of the intra-load side;
the iteration module is used for iteratively triggering the clearing module to obtain a final inter-provincial electric power clearing result and an intra-provincial electric power clearing result, wherein absolute values of differences between inter-provincial electric power clearing prices of any one of the electricity purchasing provinces and the intra-provincial load side clearing prices are smaller than a preset threshold value or reach preset iteration times;
and the generating module is used for generating the power generation and utilization plan of each province according to the final inter-province power clearing result and the intra-province power clearing result.
9. A computer arrangement comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the steps of the provincial and intra-provincial power market coupling-out method according to any one of claims 1 to 7 when executing the computer program.
10. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the inter-and intra-provincial electric power market coupling-out method according to any one of claims 1 to 7.
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