CN111242451A - Power frequency modulation auxiliary service clearing method, system, device and storage medium - Google Patents
Power frequency modulation auxiliary service clearing method, system, device and storage medium Download PDFInfo
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Abstract
The invention discloses a method, a system and a device for clearing power frequency modulation auxiliary service and a storage medium. The method comprises the steps of generating a first frequency modulation market quotation of a unit based on declaration information and opportunity cost through comprehensive frequency modulation performance indexes and opportunity cost of the unit and declaration information of the unit in a frequency modulation market, then integrating the frequency modulation performance indexes and the first frequency modulation market quotation, sequencing the units providing frequency modulation auxiliary service in a region, and clearing according to a sequencing result. The system comprises an evaluation module, an acquisition module, a first processing module, a second processing module and a clearing module. By using the method disclosed by the invention, the cost of frequency modulation auxiliary service can be effectively reduced, and the overall power generation efficiency in the region is improved; the equity of electric power frequency modulation auxiliary service transaction can be ensured, the enthusiasm of a frequency modulation auxiliary service market is mobilized, and the stable operation of an electric power system is favorably maintained. The invention can be widely applied to the technical field of electric energy.
Description
Technical Field
The invention relates to the technical field of power energy, in particular to a power frequency modulation auxiliary service clearing method, a system, a device and a storage medium.
Background
The electric power frequency modulation auxiliary service refers to secondary frequency modulation spare capacity of a generator or a third-party auxiliary service provider, and active power is adjusted in real time according to a certain adjusting rate through an automatic generation control device (AGC) to automatically respond to area control deviation (ACE), so that the service required by ACE control is met. The auxiliary service is essential to guarantee the safety and stable operation of a power grid, and adverse effects such as reduction of generated energy yield, frequent fluctuation of output and influence on service life are faced to a unit for providing frequency modulation auxiliary service, so that the frequency modulation unit can be compensated when being called.
In the prior art, each unit in the frequency modulation market in the region is released according to the comprehensive frequency modulation mileage price, the compensation income obtained by the winning unit of the frequency modulation auxiliary service comprises two parts of frequency modulation mileage compensation and frequency modulation capacity compensation in the subsequent compensation stage, and all compensation expenses are shared among members in the electric power market. Such an embodiment has major drawbacks, such as: the income of a certain unit participating in the electric energy market is high, but the frequency modulation mileage price is ranked ahead, and the result is preferably cleared in the frequency modulation market, so that obviously, the generating capacity of the unit is a serious waste, and the overall generating efficiency in the area can be reduced; on the other hand, the compensation cost limit for the unit is higher than that of other units, which generally causes the cost for acquiring the frequency modulation auxiliary service to rise, so that the power generation plan of part of power generation enterprises is limited, which further affects the production operation of the whole power in the area and is not beneficial to maintaining the stability of the operation of the power system. At present, no good technical scheme for solving the problems is available.
The noun explains:
frequency modulation mileage: the difference (absolute value) between the actual force output value when the single unit finishes responding to the AGC control instruction and the force output value when the single unit responds to the instruction, and the frequency modulation mileage of the unit in a charging period is the sum of the adjustment amount of the unit responding to the AGC control instruction in the period of time;
capacity price: the capacity electricity price of the generator set is established on the basis of the average investment cost of various generator sets participating competition in the regional power market or the power dispatching trading center.
Disclosure of Invention
The present invention aims to solve at least to some extent one of the technical problems existing in the prior art.
Therefore, an object of the embodiments of the present invention is to provide a method for clearing an electric power fm auxiliary service, which can coordinate performance and cost relationships when a unit provides an fm auxiliary service, so as to provide an electric power fm auxiliary service more reasonably, and is beneficial to improving overall power generation efficiency and stability of an electric power system.
Another object of the embodiments of the present invention is to provide a power fm auxiliary service settlement system.
In order to achieve the technical purpose, the technical scheme adopted by the embodiment of the invention comprises the following steps:
in a first aspect, an embodiment of the present invention provides a power frequency modulation auxiliary service clearing method, including the following steps:
evaluating the performance of the unit responding to the AGC instruction to obtain the comprehensive frequency modulation performance index of the unit;
acquiring declaration information of the unit in a frequency modulation market; the declaration information comprises the frequency modulation capacity, the frequency modulation mileage price and the capacity price of the unit;
acquiring opportunity cost of the unit, and generating a first frequency modulation market quotation of the unit based on the declaration information and the opportunity cost;
and sequencing the units providing the frequency modulation auxiliary service in the region based on the comprehensive frequency modulation performance index of the units and the first frequency modulation market quotation, and clearing according to a sequencing result.
The electric power frequency modulation auxiliary service clearing method provided by the embodiment of the invention integrates the frequency modulation performance of the unit, the capacity cost and opportunity cost of the unit on the basis of the frequency modulation mileage price, correspondingly covers the fixed cost recovery of the unit and the possible lost income due to the failure of participating in the electric energy market, and comprehensively evaluates the clearing sequence of the unit participating in the frequency modulation auxiliary service. The method embodies the full-cycle cost of the frequency modulation auxiliary service provider, so that the clearing sequence and the calling mechanism are clearer and more reasonable. On one hand, the fairness of electric power frequency modulation auxiliary service transaction is ensured, and the stable operation of an electric power system is facilitated; on the other hand, each unit can be fully used, the frequency modulation auxiliary service cost is reduced, and the overall power generation efficiency in the region is improved.
In addition, the power fm auxiliary service clearing method according to the above embodiment of the present invention may further have the following additional technical features:
furthermore, the electric power frequency modulation auxiliary service clearing method provided by the embodiment of the invention further comprises a unit compensation settlement step;
the unit compensation settlement step specifically comprises:
taking the maximum value in the frequency modulation mileage prices of all winning machine sets as a performance clearing price;
obtaining a capacity clearing price based on the clearing price and the performance clearing price;
performing frequency modulation mileage compensation on the unit based on the performance clearing price;
and performing frequency modulation capacity compensation on the unit based on the capacity clearing price.
The electric power frequency modulation auxiliary service clearing method provided by the embodiment of the invention carries out reasonable cost compensation on the winning machine set based on the market clearing mode, divides the unified market clearing price into a performance clearing price and a capacity clearing price, and compensates the winning machine set according to the performance clearing price and the capacity clearing price. Wherein, the performance clearance price corresponds to frequency modulation mileage compensation, and the capacity clearance price corresponds to compensation of capacity cost and opportunity cost. Corresponding to the embodiment, the compensation is carried out based on the full-period cost of the frequency modulation auxiliary service provider, so that the economic benefits of all parties can be ensured to the greatest extent, the enthusiasm of the frequency modulation auxiliary service provider is mobilized, and the promotion of the orderly operation of the frequency modulation auxiliary service market is facilitated.
Further, in an embodiment of the present invention, the step of evaluating the performance of the unit in response to the AGC instruction to obtain the comprehensive frequency modulation performance index of the unit specifically includes:
acquiring the response time of the unit responding to the AGC command, and recording the adjusting speed and the adjusting precision of the unit executing the AGC command;
and acquiring the comprehensive frequency modulation performance index of the unit according to the response time, the adjusting speed and the adjusting precision based on a preset weight value.
Further, in an embodiment of the present invention, the step of obtaining the opportunity cost of the unit specifically includes:
acquiring the spot electric energy market price of a node where the unit is located;
acquiring the approved marginal cost of the unit; the approved marginal cost is the cost required by the unit output increase;
and obtaining the opportunity cost of the unit based on the spot electric energy market price and the approved marginal cost.
In the embodiment of the invention, the lost income of the unit participating in the frequency modulation auxiliary service because the unit fails to participate in the electric energy market is quantified through two aspects: specifically, the 'lost income' is obtained by obtaining the market price of the spot electric energy of the node where the unit is located, namely the benefit possibly obtained if the unit participates in power generation and subtracting the approved marginal cost of the unit, and the opportunity cost analysis of the unit is more reasonable and efficient by combining with relevant price factors of the real-time market.
Further, in an embodiment of the present invention, the step of generating a first fm market quote for the unit based on the declaration information and the opportunity cost specifically includes:
the formula for generating the first frequency modulation market quotation of the unit is as follows:
therein, TOjQuoted for the first FM market of Unit j, PPjFrequency-modulated mileage price, P, for unit jCjFor the capacity price of unit j, LOCjOpportunity cost, Q, for unit jjThe frequency modulation capacity of the unit j.
Further, in an embodiment of the present invention, the step of sorting the units providing the fm auxiliary service in the area based on the comprehensive fm performance index of the unit and the first fm market quotation specifically includes:
inquiring the maximum value in the comprehensive frequency modulation performance indexes of the units in the region;
based on the maximum value, carrying out normalization processing on the comprehensive frequency modulation performance index of each unit to obtain a performance index coefficient corresponding to each unit;
by the formula RPj＝TOj/FjReconstructing the first frequency modulation market quotation to obtain a second frequency modulation market quotation; therein, TOjFor the first FM market quote, RP, for unit jjSecond frequency modulation market quoted for unit j, FjThe performance index coefficient of the unit j is obtained;
and sorting the second frequency modulation market quotations of the units according to the size relationship.
Further, in an embodiment of the present invention, the clearing with the sorting result specifically includes: and sequentially clearing the second frequency modulation market quotations of all the units from low to high until the sum of the frequency modulation capacities of all the winning units meets the regional frequency modulation capacity requirement, and taking the first frequency modulation market quotation of the last winning unit as a clearing price.
In a second aspect, an embodiment of the present invention provides a power fm auxiliary service settlement system, including:
the evaluation module is used for evaluating the performance of the unit responding to the AGC instruction to obtain the comprehensive frequency modulation performance index of the unit;
the acquisition module is used for acquiring the comprehensive frequency modulation performance index of the unit, declaration information of the unit in a frequency modulation market and opportunity cost of the unit; the declaration information comprises the frequency modulation capacity, the frequency modulation mileage price and the capacity price of the unit;
the first processing module is used for generating a first frequency modulation market quotation of the unit based on the declaration information and the opportunity cost;
the second processing module is used for sequencing the units providing frequency modulation auxiliary service in the region based on the comprehensive frequency modulation performance index of the units and the first frequency modulation market quotation;
and the clearing module is used for clearing according to the sequencing result of the second processing module.
In a third aspect, an embodiment of the present invention provides an electric power fm auxiliary service settlement apparatus, including:
at least one processor;
at least one memory for storing at least one program;
when executed by the at least one processor, the at least one program causes the at least one processor to implement the power fm auxiliary service clearing method.
In a fourth aspect, the present invention further provides a storage medium having stored therein processor-executable instructions, which when executed by a processor, are configured to implement a power fm auxiliary service clearing method.
Advantages and benefits of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention:
the embodiment of the invention can comprehensively evaluate the clearing sequence of the unit participating in the frequency modulation auxiliary service based on the frequency modulation performance of the unit and the declaration information of the unit in the frequency modulation market, and comprehensively considers the full-period cost of a frequency modulation auxiliary service provider, so that the clearing sequence and the calling mechanism are clearer and more reasonable: on one hand, each unit can be made the best use of, the cost of frequency modulation auxiliary service is reduced, and the overall power generation efficiency in the region is improved; on the other hand, the equity of electric power frequency modulation auxiliary service transaction is ensured, the enthusiasm of a frequency modulation auxiliary service market is mobilized, and the stable operation of an electric power system is facilitated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description is made on the drawings of the embodiments of the present invention or the related technical solutions in the prior art, and it should be understood that the drawings in the following description are only for convenience and clarity of describing some embodiments in the technical solutions of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic flow chart illustrating an embodiment of a power fm auxiliary service clearing method according to the present invention;
fig. 2 is a schematic structural diagram of an embodiment of a power fm auxiliary service settlement system according to the invention;
fig. 3 is a schematic structural diagram of an embodiment of a power fm auxiliary service settlement apparatus according to the invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention. The step numbers in the following embodiments are provided only for convenience of illustration, the order between the steps is not limited at all, and the execution order of each step in the embodiments can be adapted according to the understanding of those skilled in the art.
In the embodiment of the invention, market main bodies participating in the power frequency modulation auxiliary service include, but are not limited to, various grid-connected power generation enterprises (such as thermal power, hydroelectric power, wind power, photovoltaic and nuclear power enterprises), enterprises owning self-contained power plants, power selling enterprises, users and energy storage and regulation auxiliary service providers.
Hereinafter, a power fm auxiliary service clearing method and system according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings, and first, the power fm auxiliary service clearing method according to an embodiment of the present invention will be described with reference to the accompanying drawings.
Referring to fig. 1, the method for clearing the power frequency modulation auxiliary service in the embodiment of the present invention mainly includes the following steps:
s1: evaluating the performance of the unit responding to the AGC instruction to obtain the comprehensive frequency modulation performance index of the unit;
s2: acquiring declaration information of the unit in a frequency modulation market;
s3: acquiring opportunity cost of the unit, and generating a first frequency modulation market quotation of the unit based on the declaration information and the opportunity cost;
s4: the method comprises the steps that units providing frequency modulation auxiliary service in an area are sorted based on comprehensive frequency modulation performance indexes of the units and first frequency modulation market quotations;
s5: clearing according to the sequencing result;
s6: and carrying out compensation settlement on the bid winning unit.
In step S1 described in the embodiment of the present invention, the comprehensive frequency modulation performance index of the unit is a comprehensive dimension of performance exhibited by the unit in the process of providing the frequency modulation auxiliary service, and the evaluation and the verification are mainly performed through three aspects of response time, adjustment rate, and adjustment accuracy. Specifically, the response time refers to a time taken for the AGC unit to reliably span an adjustment dead zone consistent with an adjustment direction on the basis of an original output point after the AGC system sends an instruction, and is measured by a degree of an actual response time of the AGC unit compared with a standard response time. The adjusting speed refers to the speed of the AGC unit responding to the set point instruction, and measures the degree of the actual adjusting speed of the unit and the standard speed which should be reached. The adjustment precision refers to a difference value between actual output and set point output after the response of the unit is stable, and the measured value is the degree of the actual adjustment deviation of the AGC unit compared with the deviation allowed to reach the AGC unit. When the comprehensive frequency modulation performance index of the unit is obtained according to the response time, the adjustment speed and the adjustment precision, weighting calculation is also performed on each dimension, for example, the comprehensive frequency modulation performance index of the unit can be obtained by adopting the following formula:
k＝a×k1+b×k2+c×k3
in the formula, k is the comprehensive frequency modulation performance index value of the unit; k is a radical of1Adjusting the speed performance index value of the unit; k is a radical of2The response time performance index value of the unit is obtained; k is a radical of3The value of the performance index of the unit for adjusting the precision is obtained; a. b and c are weight coefficients corresponding to the performance index values respectively. a. The specific values of b and c can be reasonably set and adjusted according to the actual running condition of the market, and one preferred embodiment is as follows: a is 0.5, b is 0.25, and c is 0.25.
In addition, because the unit often involves continuous time interval in the course of working, so its comprehensive frequency modulation performance index may be changed. In view of this, in the embodiment of the present invention, the numerical average of the comprehensive frequency modulation performance index in the statistical time period is used as the comprehensive frequency modulation performance index in the time period.
On the other hand, it should be understood that the method in the embodiment of the present invention is generally implemented on the basis of a time period, and for convenience of description, the embodiment of the present invention takes each hour as a time period, and of course, the length of the time period may also be flexibly set according to actual requirements.
In step S2, obtaining relevant offer information of the next-day frequency modulation auxiliary service declared in the frequency modulation market before the unit operation day, where for the ith time slot in the operation day, the declaration information content of the unit j specifically includes: frequency modulation capacity Qij(unit: MW), FM Mileage price PPij(Unit: yuan/MW), volume price PCij(unit: yuan/MW).
In step S3, the opportunity cost of the unit may be obtained by: for a unit j, firstly, the spot electric energy market price LMP of the ith time interval of the node where the unit j is located is obtainedij(Unit: element), for the unit j in the ith time interval each increase unit outputThe required cost is checked, and the checking marginal cost MC of the ith time period is obtainedj(unit: element). Then through the formula LOCij＝LMPij-MCjObtaining the opportunity cost LOC of the unit j in the ith time intervalij(unit: element).
Further, in the step S3, a first fm market quote of the unit is generated based on the declaration information and the opportunity cost: in particular, it can be represented by a formula
And generating a first frequency modulation market quotation of the unit j in the ith time interval.
Therein, TOijQuote (Unit: element/MW), P, for the first FM market for unit j in the ith time periodPijThe frequency modulation mileage price (unit: element/MW), P, of the unit j in the ith time periodCijFor the capacity price (unit: element/MW) of the unit j in the ith time period, LOCijFor the opportunity cost (unit: element) of the unit j in the ith time interval, QijThe frequency modulation capacity (unit: MW) of the unit j in the ith time interval.
In a frequency modulation resource distribution area, first frequency modulation market quotations of all units participating in a frequency modulation auxiliary service market are generated, then based on the first frequency modulation market quotations and comprehensive frequency modulation performance indexes of the units, the clearing sequence is considered, the economic benefit of the units and the total frequency modulation cost in the area are considered, and the clearing mechanism of the units is more reasonable. Specifically, the process of the unit clearing and sorting is as follows:
s41: the maximum value of the comprehensive frequency modulation performance indexes of all the units in the ith time interval in the query area is recorded as kmax,i；
S42: based on the maximum value kmax,iCarrying out normalization processing on the comprehensive frequency modulation performance indexes of each unit to obtain performance index coefficients corresponding to each unit; for a certain set j, the coefficient of the performance index in the ith time interval can be represented by the formula Fij＝kij/kmax,iObtaining, wherein FijThe performance index coefficient of the unit j in the ith time interval is obtained; k is a radical ofijAnd (4) synthesizing the value of the frequency modulation performance index for the unit j in the ith time period. Therefore, the comprehensive frequency modulation performance indexes of all the units are normalized to performance index coefficients within 0-1.
S43: by the formula RPij＝TOij/FijReconstructing the first frequency modulation market quotation to obtain a second frequency modulation market quotation; therein, TOijQuote the first FM market price (unit: element/MW) for the ith time slot of the unit j, RPijSecond FM market quotes (units: element/MW), F, for unit j ith time slotijThe performance index coefficient of the unit j in the ith time interval is obtained;
s44: and sorting the second frequency modulation market quotations of the units according to the size relationship.
After the sequencing is finished, the units are sequentially cleared according to the sequence of the second frequency modulation market quotations of the units from low to high, for the ith time interval, the sum of the frequency modulation capacity of all the winning units meets the frequency modulation capacity requirement of the area in the ith time interval, and the first frequency modulation market quotation of the last winning unit is used as the clearing price of the ith time interval and is marked as CPi(unit: yuan/MW).
The process of performing compensation settlement on the beacon group in the step S6 is as follows:
in all winning bid units, for the ith time period, taking the maximum value in the frequency modulation mileage price as the performance clearing price CP of the ith time periodPi(unit: element/MW):
in the formula, U represents the set of all winning machine groups, j is the number of the machine group, PPijAnd (4) the frequency modulation mileage price (unit: element/MW) of the unit j in the ith time period.
Then, the performance clearing price is subtracted from the clearing price in the ith time interval to obtain the capacity clearing price CPCi(unit: element/MW):
CPCi＝CPi-CPPi
for each winning machine set participating in the frequency modulation auxiliary service market, the compensation income comprises frequency modulation mileage compensation and frequency modulation capacity compensation.
For the ith time interval, compensating R for the frequency modulation mileage of the unit jPij(unit: yuan) is:
RPij＝Mij×CPPi×Fij
in the formula, MijIs the frequency modulation mileage (unit: MW) provided by the unit j in the ith period, CPPiIs the performance clearing price (unit: yuan/MW), F, for the ith time periodijAnd the performance index coefficient of the unit j in the ith time interval is obtained.
For the ith time interval, compensating R for the frequency modulation capacity of the unit jCij(unit: yuan) is:
RCij＝Qij×CPCi×Fij
in the formula, QijIs the frequency modulation capacity (unit: MW) of the unit j in the ith period, CPPiIs the capacity clearing price (unit: yuan/MW), F, of the ith time periodijAnd the performance index coefficient of the unit j in the ith time interval is obtained.
Next, a power fm auxiliary service settlement system proposed according to an embodiment of the present invention will be described with reference to the drawings.
Fig. 2 is a schematic structural diagram of a power fm auxiliary service settlement system according to an embodiment of the invention.
The system specifically comprises:
the evaluation module 101 is used for evaluating the performance of the unit responding to the AGC instruction to obtain the comprehensive frequency modulation performance index of the unit;
the acquisition module 102 is used for acquiring comprehensive frequency modulation performance indexes of the unit, declaration information of the unit in a frequency modulation market and opportunity cost of the unit; the declaration information comprises the frequency modulation capacity, the frequency modulation mileage price and the capacity price of the unit;
the first processing module 103 is used for generating a first frequency modulation market quotation of the unit based on the declaration information and the opportunity cost;
the second processing module 104 is configured to rank the units providing the frequency modulation auxiliary service in the region based on the comprehensive frequency modulation performance index of the unit and the first frequency modulation market quotation;
and a clearing module 105, configured to clear according to the sorting result of the second processing module 104.
It can be seen that the contents in the foregoing method embodiments are all applicable to this system embodiment, the functions specifically implemented by this system embodiment are the same as those in the foregoing method embodiment, and the advantageous effects achieved by this system embodiment are also the same as those achieved by the foregoing method embodiment.
Referring to fig. 3, an embodiment of the present invention provides an electric power fm auxiliary service settlement apparatus, including:
at least one processor 201;
at least one memory 202 for storing at least one program;
when executed by the at least one processor 201, the at least one program causes the at least one processor 201 to implement the power fm auxiliary service clearing method.
Similarly, the contents of the method embodiments are all applicable to the apparatus embodiments, the functions specifically implemented by the apparatus embodiments are the same as the method embodiments, and the beneficial effects achieved by the apparatus embodiments are also the same as the beneficial effects achieved by the method embodiments.
The embodiment of the present invention further provides a storage medium, in which instructions executable by the processor 201 are stored, and when the instructions executable by the processor 201 are executed by the processor 201, the power fm auxiliary service clearing method is executed.
Similarly, the contents in the foregoing method embodiments are all applicable to this storage medium embodiment, the functions specifically implemented by this storage medium embodiment are the same as those in the foregoing method embodiments, and the advantageous effects achieved by this storage medium embodiment are also the same as those achieved by the foregoing method embodiments.
In alternative embodiments, the functions/acts noted in the block diagrams may occur out of the order noted in the operational illustrations. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality/acts involved. Furthermore, the embodiments presented and described in the flow charts of the present invention are provided by way of example in order to provide a more thorough understanding of the technology. The disclosed methods are not limited to the operations and logic flows presented herein. Alternative embodiments are contemplated in which the order of various operations is changed and in which sub-operations described as part of larger operations are performed independently.
Furthermore, although the present invention is described in the context of functional modules, it should be understood that, unless otherwise stated to the contrary, one or more of the described functions and/or features may be integrated in a single physical device and/or software module, or one or more functions and/or features may be implemented in a separate physical device or software module. It will also be appreciated that a detailed discussion of the actual implementation of each module is not necessary for an understanding of the present invention. Rather, the actual implementation of the various functional modules in the apparatus disclosed herein will be understood within the ordinary skill of an engineer, given the nature, function, and internal relationship of the modules. Accordingly, those skilled in the art can, using ordinary skill, practice the invention as set forth in the claims without undue experimentation. It is also to be understood that the specific concepts disclosed are merely illustrative of and not intended to limit the scope of the invention, which is defined by the appended claims and their full scope of equivalents.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device.
More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
In the foregoing description of the specification, reference to the description of "one embodiment/example," "another embodiment/example," or "certain embodiments/examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A power frequency modulation auxiliary service clearing method is characterized by comprising the following steps:
evaluating the performance of the unit responding to the AGC instruction to obtain the comprehensive frequency modulation performance index of the unit;
acquiring declaration information of the unit in a frequency modulation market; the declaration information comprises the frequency modulation capacity, the frequency modulation mileage price and the capacity price of the unit;
acquiring opportunity cost of the unit, and generating a first frequency modulation market quotation of the unit based on the declaration information and the opportunity cost;
and sequencing the units providing the frequency modulation auxiliary service in the region based on the comprehensive frequency modulation performance index of the units and the first frequency modulation market quotation, and clearing according to a sequencing result.
2. The power frequency modulation auxiliary service clearing method according to claim 1, wherein the step of evaluating the performance of the unit in response to an AGC instruction to obtain a comprehensive frequency modulation performance index of the unit specifically comprises:
acquiring the response time of the unit responding to the AGC command, and recording the adjusting speed and the adjusting precision of the unit executing the AGC command;
and acquiring the comprehensive frequency modulation performance index of the unit according to the response time, the adjusting speed and the adjusting precision based on a preset weight value.
3. The method according to claim 1, wherein the step of obtaining the opportunity cost of the unit specifically comprises:
acquiring the spot electric energy market price of a node where the unit is located;
acquiring the approved marginal cost of the unit; the approved marginal cost is the cost required by the unit output increase;
and obtaining the opportunity cost of the unit based on the spot electric energy market price and the approved marginal cost.
4. A power fm auxiliary service clearing method according to any of claims 1-3, wherein the step of generating a first fm market quote for the unit based on the declaration information and opportunity cost is specifically:
the formula for generating the first frequency modulation market quotation of the unit is as follows:
therein, TOjQuoted for the first FM market of Unit j, PPjFrequency-modulated mileage price, P, for unit jCjFor the capacity price of unit j, LOCjOpportunity cost, Q, for unit jjThe frequency modulation capacity of the unit j.
5. The method according to claim 1, wherein the step of sorting the units providing fm auxiliary service in the region based on the aggregate fm performance index of the units and a first fm market quoted price specifically comprises:
inquiring the maximum value in the comprehensive frequency modulation performance indexes of the units in the region;
based on the maximum value, carrying out normalization processing on the comprehensive frequency modulation performance index of each unit to obtain a performance index coefficient corresponding to each unit;
by the formula RPj＝TOj/FjReconstructing the first frequency modulation market quotation to obtain a second frequency modulation market quotation; therein, TOjFor the first FM market quote, RP, for unit jjSecond frequency modulation market quoted for unit j, FjThe performance index coefficient of the unit j is obtained;
and sorting the second frequency modulation market quotations of the units according to the size relationship.
6. A method according to claim 5, wherein the clearing with the sorted result is performed by: and sequentially clearing the second frequency modulation market quotations of all the units from low to high until the sum of the frequency modulation capacities of all the winning units meets the regional frequency modulation capacity requirement, and taking the first frequency modulation market quotation of the last winning unit as a clearing price.
7. A power FM auxiliary service clearing method according to claim 6, characterized in that: the method further comprises a unit compensation settlement step, wherein the unit compensation settlement step specifically comprises the following steps:
taking the maximum value in the frequency modulation mileage prices of all winning machine sets as a performance clearing price;
obtaining a capacity clearing price based on the clearing price and the performance clearing price;
performing frequency modulation mileage compensation on the unit based on the performance clearing price;
and performing frequency modulation capacity compensation on the unit based on the capacity clearing price.
8. An electric power frequency modulation auxiliary service settlement system, comprising:
the evaluation module is used for evaluating the performance of the unit responding to the AGC instruction to obtain the comprehensive frequency modulation performance index of the unit;
the acquisition module is used for acquiring the comprehensive frequency modulation performance index of the unit, declaration information of the unit in a frequency modulation market and opportunity cost of the unit; the declaration information comprises the frequency modulation capacity, the frequency modulation mileage price and the capacity price of the unit;
the first processing module is used for generating a first frequency modulation market quotation of the unit based on the declaration information and the opportunity cost;
the second processing module is used for sequencing the units providing frequency modulation auxiliary service in the region based on the comprehensive frequency modulation performance index of the units and the first frequency modulation market quotation;
and the clearing module is used for clearing according to the sequencing result of the second processing module.
9. An electric power frequency modulation auxiliary service settlement apparatus, comprising:
at least one processor;
at least one memory for storing at least one program;
when executed by the at least one processor, cause the at least one processor to implement a power fm auxiliary services clearing method as claimed in any one of claims 1 to 7.
10. A storage medium having stored therein instructions executable by a processor, the storage medium comprising: the processor-executable instructions, when executed by a processor, are for implementing a power fm auxiliary services clearing method as claimed in any one of claims 1 to 7.
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