CN111242450B - Method, system, device and medium for clearing hydroelectric generating set in real-time market - Google Patents
Method, system, device and medium for clearing hydroelectric generating set in real-time market Download PDFInfo
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Abstract
The invention discloses a method, a system, a device and a medium for clearing a hydroelectric generating set in a real-time market. The method comprises the steps of obtaining declaration information of a hydroelectric generating set in an electric power spot market, obtaining operation information and quotation data of the hydroelectric generating set, drawing a step volume price curve, then carrying out first round of clearing to obtain output distribution data of the hydroelectric generating set, carrying out re-determination on output upper and lower limit constraints of the hydroelectric generating set according to the operation information and the output distribution data, and finally carrying out second round of clearing on the generating set in the electric power spot market. The system comprises an acquisition module, a first processing module, a second processing module, a first output module and a second output module. By using the method provided by the invention, the real-time market clearing efficiency considering the hydroelectric generation characteristics can be effectively improved, and the normal operation of the electric power spot market and the stable operation of an electric power system are favorably ensured. The invention can be widely applied to the technical field of electric power energy scheduling.
Description
Technical Field
The invention relates to the technical field of electric power energy scheduling, in particular to a method, a system, a device and a medium for clearing a hydroelectric generating set in a real-time market.
Background
At present, a clearing mechanism of an electric power spot market adopts Safety Constraint Unit Combination (SCUC) and Safety Constraint Economic Dispatch (SCED) programs to carry out optimization calculation based on declaration information of market members and power grid operation boundary conditions, and clearing is carried out to obtain a market trading result. In short, on the premise of ensuring the safety of the power grid, the unit with the cheapest price report in the system is called preferentially until the load requirement is met.
The electric power spot market clearing includes day-ahead market clearing, in which we have sufficient time to perform SCUC and SCED clearing, and real-time market clearing. In the real-time market, the output of the generator set is optimized in a rolling mode by adopting a Safety Constrained Economic Dispatch (SCED) program in a period of 15 minutes, and information such as a power generation plan and a real-time node power price which need to be actually executed by each generator set is formed, so that the requirement on the real-time performance of the power generation plan and the power price information is very high. However, the current generator set in the electric power market also comprises a hydroelectric generating set, and a water turbine of the hydroelectric generating set has a vibration region in the actual operation, and the hydroelectric generating set needs to be prevented from operating in the vibration region. Some high-water-head giant units also usually have a plurality of vibration intervals, and the water heads in the day are variable, so that the vibration intervals dynamically change along with the water heads. Therefore, in actual real-time market SCED clearing, vibration region constraints of the hydroelectric generating set are also considered, but large quantities of variables are introduced by directly adding the vibration region constraints, so that clearing efficiency of the real-time market is reduced, and stable operation of the power system is possibly influenced in severe cases. At present, a real-time market clearing mechanism considering hydroelectric generation characteristics is also lacked in the prior art.
Disclosure of Invention
The present invention aims to solve at least to some extent one of the technical problems of the prior art.
Therefore, an object of the embodiments of the present invention is to provide a method for clearing a hydroelectric generating set in a real-time market, which can effectively improve the real-time market clearing efficiency considering hydroelectric generation characteristics, and is beneficial to ensuring normal operation of a power spot market and stable operation of a power system.
Another object of an embodiment of the present invention is to provide a hydroelectric generating set clearing system in a real-time market.
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 method for clearing a hydroelectric generating set in a real-time market, including the following steps:
acquiring declaration information of a hydroelectric generating set in an electric power spot market, and acquiring running information and quotation data of the hydroelectric generating set based on the declaration information;
according to the operation information and the quotation data of the hydroelectric generating set, making a step volume price curve of the hydroelectric generating set;
performing first round clearing on the unit in the electric power spot market based on the step volume price curve to obtain output distribution data of the hydroelectric generating set;
re-determining the upper and lower limit constraints of the output of the hydroelectric generating set according to the operation information and the output distribution data of the hydroelectric generating set;
and performing second round of clearing on the unit in the electric power spot market based on the upper and lower output limit constraints after re-determination.
According to the clearing method of the hydroelectric generating set in the real-time market, a step volume price curve of the hydroelectric generating set is made based on the operation information and the quotation information of the hydroelectric generating set, the first round of clearing is carried out based on the step volume price curve, so that the proper output distribution data of the hydroelectric generating set is determined, the upper and lower output limits of the hydroelectric generating set are re-determined according to the output distribution data and the operation characteristics of the hydroelectric generating set, the proper output range of the hydroelectric generating set in actual operation is found, and finally the clearing result of the electric power spot market is obtained through re-clearing. According to the method, the output range applicable to the hydroelectric generating set can be rapidly determined by combining the first clear result with the vibration characteristic of the hydroelectric generating set; and vibration constraint of a unit is not required to be introduced in the two SCED discharging processes, so that the discharging efficiency can be obviously improved.
In addition, the method for clearing up the hydroelectric generating set in the real-time market according to the embodiment of the invention may further have the following additional technical features:
further, in an embodiment of the present invention, the step of making a step volume price curve of the hydroelectric generating set according to the operation information and the price data of the hydroelectric generating set specifically includes:
dividing the output of the hydroelectric generating set into an operable area and a vibration area according to the operation information of the hydroelectric generating set;
making a step volume price curve of the hydroelectric generating set operable area based on the quoted price data;
and making a step volume price curve of the vibration area of the hydroelectric generating set according to the quotation data of the operable area before and/or after the vibration area.
According to the embodiment of the invention, the step price curve aims at the special working condition of the vibration region of the hydroelectric generating set, and the quotation of the vibration region of the hydroelectric generating set is supplemented based on the quotation data of the operable region before and/or after the vibration region, so that the hydroelectric generating set can participate in the real-time SCED (single-chip electronic device) clearing of the electric power spot market according to the normal output quotation relation of the generating set without considering the constraint of the vibration region. The method effectively provides a simplified means for the first round of real-time clearing of the hydroelectric generating set participating in the electric power spot market, can quickly obtain the output distribution data of the hydroelectric generating set without considering the constraint condition of the vibration region, and can effectively obtain the appropriate second round of real-time SCED clearing results by carrying out the constraint adjustment of the upper and lower output limits of the hydroelectric generating set based on the data.
Further, in an embodiment of the present invention, the method further comprises the following steps: and based on the stepped volume price curve of the operable area of the hydroelectric generating set, the operable area of the hydroelectric generating set is divided again.
In the embodiment of the invention, the operable area of the hydroelectric generating set is divided again according to the price variation range based on the step price curve of the operable area, so that a more detailed relation between the electricity price and the output can be obtained, on one hand, the quotation of the vibration area can be more favorably determined, on the other hand, a smaller output constraint range can be obtained when the upper and lower output limits of the hydroelectric generating set are re-determined, and the clear result is more in line with the requirement of maximizing social welfare.
Further, in an embodiment of the present invention, the step of making a step price curve of the vibration zone of the hydroelectric generating set according to the price data of the operable zone before and/or after the vibration zone specifically includes:
taking the average value of the quotation data of the operable area before and after the vibration area as the quotation data of the vibration area;
and making a stepped volume price curve of the vibration area of the hydroelectric generating set based on the quoted price data of the vibration area.
Further, in an embodiment of the present invention, the step of re-determining the upper and lower limit constraints of the output of the hydroelectric generating set according to the operation information and the output distribution data of the hydroelectric generating set specifically includes:
and if the output distribution data falls into the operable area of the hydroelectric generating set, taking the output range of the operable area as the output upper and lower limit constraints of the hydroelectric generating set.
In the embodiment of the invention, aiming at the condition that the output distribution data obtained when the hydroelectric generating set participates in the first round of output is in the operable area, the range of the operable area can be used as the output upper and lower limit constraints of the hydroelectric generating set as the normal operating state of the hydroelectric generating set, and the output result meeting the safety constraint economic dispatch can be obtained by carrying out the second round of output.
Further, in an embodiment of the present invention, the step of re-determining the upper and lower limit constraints of the output of the hydroelectric generating set according to the operation information and the output distribution data of the hydroelectric generating set specifically includes:
and if the output distribution data falls into the vibration area of the hydroelectric generating set, taking the output range of the operable area before or after the vibration area as the output upper and lower limit constraints of the hydroelectric generating set.
Further, in an embodiment of the present invention, the step of using the output range of the operable region before or after the vibration region as the output upper and lower limits of the hydroelectric generating set is specifically:
acquiring upper and lower output limits of the vibration region, and determining the output mean value of the vibration region;
comparing said contribution distribution data with said mean contribution for the vibration region;
if the output distribution data is larger than the output mean value, taking the output range of the operable area behind the vibration area as the output upper and lower limit constraints of the hydroelectric generating set;
and if the output distribution data is smaller than the output mean value, taking the output range of the operable area before the vibration area as the output upper and lower limit constraints of the hydroelectric generating set.
In the embodiment of the invention, aiming at the condition that the output distribution data obtained when the hydroelectric generating set participates in the first round of clearing falls into the vibration region, because the output distribution data does not accord with the normal running state of the hydroelectric generating set, the appropriate output range needs to be adjusted nearby and selected as the output upper and lower limit constraints of the hydroelectric generating set, and then the clearing result meeting the safety constraint economic dispatching can be obtained by carrying out the second round of clearing.
In a second aspect, an embodiment of the present invention provides a cleaning system for a hydroelectric generating set in a real-time market, including:
the acquisition module is used for acquiring declaration information of the hydroelectric generating set in an electric power spot market, and acquiring operation information and quotation data of the hydroelectric generating set based on the declaration information;
the first processing module is used for making a stepped volume price curve of the hydroelectric generating set according to the operation information and the quotation data of the hydroelectric generating set;
the first clearing module is used for carrying out first round clearing on the units in the electric power spot market based on the stepped volume price curve to obtain output distribution data of the hydroelectric generating set;
the second processing module is used for re-determining the upper and lower output limit constraints of the hydroelectric generating set according to the operation information and the output distribution data of the hydroelectric generating set;
and the second clearing module is used for carrying out second round clearing on the unit in the electric power spot market based on the upper and lower limit constraints of output after re-determination.
In a third aspect, an embodiment of the present invention provides a cleaning device for a hydroelectric generating set in a real-time market, including:
at least one processor;
at least one memory for storing at least one program;
when the at least one program is executed by the at least one processor, the at least one program causes the at least one processor to implement the method for clearing hydroelectric generating units in the real-time market.
In a fourth aspect, embodiments of the present invention further provide a storage medium having stored therein processor-executable instructions, which when executed by a processor, are configured to implement the method for clearing a hydroelectric generating set in a real-time market.
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 provides a method for clearing a hydroelectric generating set in real time in an electric power spot market. The embodiment of the invention can accelerate the clearing efficiency of the hydroelectric generating set in the real-time market, ensures the normal operation of the real-time market and is beneficial to maintaining the stable operation of the power system.
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 diagram of a specific embodiment of a method for removing water from a hydroelectric generating set in a real-time market according to the present invention;
FIG. 2 is a schematic diagram of a stepped volume-price curve of a particular embodiment of a method for producing a purge of a hydroelectric generating set in a real-time market in accordance with the present invention;
FIG. 3 is a schematic view of a stepped volume price curve of another embodiment of a method for producing a clear water for a hydroelectric generating set in a real-time market according to the present invention;
FIG. 4 is a schematic structural diagram of an embodiment of a hydroelectric generating set purge system in a real-time market according to the present invention;
fig. 5 is a schematic structural diagram of a specific embodiment of a cleaning device of a hydroelectric generating set in a real-time market.
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.
The method and system for removing a hydroelectric generating set in a real-time market according to embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1, the method for clearing a hydroelectric generating set in a real-time market in the embodiment of the present invention mainly includes the following steps:
s1: acquiring declaration information of a hydroelectric generating set in an electric power spot market, and acquiring running information and quotation data of the hydroelectric generating set based on the declaration information;
s2: according to the operation information and the quotation data of the hydroelectric generating set, making a step volume price curve of the hydroelectric generating set;
s3: performing first round clearing on the unit in the electric power spot market based on the step volume price curve to obtain output distribution data of the hydroelectric generating set;
s4: re-determining the upper and lower limit constraints of the output of the hydroelectric generating set according to the operation information and the output distribution data of the hydroelectric generating set;
s5: and performing second round of clearing on the units in the electric power spot market based on the upper and lower output limit constraints after the hydroelectric generating set is re-determined.
In step S1 described in the embodiment of the present invention, declaration information submitted by the hydro-power generating unit in the future is obtained, where the declaration information mainly includes an operation output condition and quoted price data of the unit, and because the hydro-power generating unit operates in a vibration region, the output of the hydro-power generating unit can be divided according to normal power generation and the failure of normal power generation in the vibration region according to the operation information provided by the hydro-power generating unit, so as to obtain an operable region and a vibration region of the output of the hydro-power generating unit. Referring to fig. 2, according to quoted price data corresponding to different output magnitudes of the hydroelectric generating set, a stepped pricing curve of an operable area of the hydroelectric generating set may be first made, where an output unit on a horizontal axis may be MW, and an electricity price unit on a vertical axis may be element. In fig. 2, P1-P2 are vibration areas of the hydro-power generating unit, and the hydro-power generating unit cannot normally generate electricity in the vibration areas, so that the hydro-power generating unit needs to avoid the output areas of P1-P2 in actual operation, and no quotation is provided for the vibration areas. After the step volume price curve of the operable area of the hydroelectric generating set is obtained, the operable area of the hydroelectric generating set can be divided again according to the change situation of the electricity price, referring to fig. 3, wherein the output area of 0-P5 does not contain a vibration area, which is a complete operable area, and the electricity price is greatly changed at the output points of P3 and P4, which is probably because the operating power of the generating set is correspondingly adjusted. Therefore, the operable area of 0-P5 can be subdivided at the power points P3 and P4, and three more finely operable areas with relatively stable electricity prices, namely 0-P3, P3-P4 and P4-P5, are obtained, and the specific division standard can be flexibly adjusted according to actual requirements. The step-rate curve of the vibration region may be supplemented in the form of fig. 3, and specifically, as shown in fig. 3, N1(P4-P5 power region) is an operable region, N2(P5-P6 power region) is a vibration region, and N3(P6-P7 power region) is an operable region, and for the power rate of the N2 vibration region, the power rate of the preceding N1 operable region adjacent thereto may be referred to, the power rate of the following N3 operable region adjacent thereto may be referred to, and more preferably, the average of the power rates of the N1 operable region and the N3 operable region may be selected as the power rate of the N2 vibration region, and the step-rate curve of the vibration region of the hydroelectric generating unit may be supplemented, so as to obtain a complete step-rate curve of the generating-power relationship of the hydroelectric generating unit.
In the embodiment of the invention, after a complete step volume-price curve of the hydroelectric generating set is obtained, the vibration region condition is not considered, the hydroelectric generating set is used as a common set to perform a first round of real-time SCED discharging without vibration region constraint, each constraint condition of the real-time SCED discharging can be executed by referring to the existing standard, wherein the upper and lower output limit constraints of the hydroelectric generating set are set according to the maximum output value and the minimum output value of the hydroelectric generating set in the time period. In the first round of real-time SCED clearing, the cleared units comprise all units in the electric power spot market, and output distribution data of all the units, namely the power generation plan to be actually executed by the units, are obtained after clearing is finished. And then, acquiring output distribution data of the hydroelectric generating set, wherein the first round of real-time SCED output cannot be used as a final output result because of the existence of a vibration region of the hydroelectric generating set, and the first round of real-time SCED output is used for quickly positioning a proper output range of the hydroelectric generating set and further analyzing and adjusting according to the operating characteristics of the hydroelectric generating set. Specifically, the upper and lower limit constraints of the output of the hydroelectric generating set can be re-determined through the relationship between the output distribution data and the operable area and the vibration area of the hydroelectric generating set, for example, the upper and lower limits of the output of the hydroelectric generating set are controlled in one operable area, so that the vibration area of the hydroelectric generating set can be effectively avoided.
Specifically, the step S4 in the embodiment of the present invention is divided into the following cases:
referring to fig. 3, if the output allocation data falls into an operable region of the hydroelectric generating set, for example, N1 or N3, an output range of the operable region is used as an output upper limit and an output lower limit of the hydroelectric generating set, for example, when the output allocation data falls into N1, P4 may be used as an output lower limit of the hydroelectric generating set, and P5 may be used as an output upper limit of the hydroelectric generating set.
If the output allocation data falls into the vibration region of the hydroelectric generating set, for example, into N2, adaptive adjustment is required because the hydroelectric generating set cannot work normally in this region. An alternative embodiment is: and taking the output range of the operable area before or after the vibration area as the upper and lower output limit constraints of the hydroelectric generating set, namely taking the output range of the operable area N1 or N3 adjacent to the N2 area as the upper and lower output limit constraints of the hydroelectric generating set. For example, when the output allocation data falls into N2, P4 may be used as the lower output limit constraint of the hydroelectric generating set, and P5 may be used as the upper output limit constraint of the hydroelectric generating set; similarly, P6 may be used as the lower limit of the output of the hydroelectric generating set, and P7 may be used as the upper limit of the output of the hydroelectric generating set.
In the case of the above-mentioned output allocation data falling into the vibration region of the hydroelectric power generating unit, the following preferred embodiments may also be used for adjustment: referring to fig. 3, if the output distribution data falls into the vibration region N2 of the hydroelectric generating set, the upper and lower output limits of the vibration region N2, that is, the values of P5 and P6, may be obtained first, the average of P5 and P6 is used as the output average of the vibration region N2, and then the output distribution data is compared with the output average of the vibration region N2: if the output distribution data is larger than the output mean value, taking the output range of the operational area N3 as the output upper and lower limit constraints of the hydroelectric generating set; and if the output distribution data is smaller than the output mean value, taking the output range of the operable area N1 as the output upper and lower limit constraints of the hydroelectric generating set.
In the embodiment of the invention, each hydroelectric generating set may contain a plurality of vibration regions in practical situation, and it can be recorded that the hydroelectric generating set i has K vibration regions in total, wherein the output range of the nth vibration region is
In a certain period t, the upper limit and the lower limit of the output of the hydroelectric generating set i are respectively
It can be concluded that during this time period t the operational area of the hydroelectric generating set i comprises
The method for re-determining the upper and lower limit constraints of the output of the hydroelectric generating set i after the first round of clearing is performed according to the embodiment.
For a hydroelectric power station comprising a plurality of hydroelectric generating sets, it is preferable that all the hydroelectric generating sets with the output distribution data of the first round in the vibration region are equal to the total value of the output of the lower adjusting mechanism and the output of the upper adjusting mechanism. The output value adjusted by the hydroelectric generating set is calculated through the difference between the output distribution data and the output mean value of the adjacent operable area. For example, the adjustment mean value of all the hydroelectric generating sets can be used as a judgment standard, the output of the hydroelectric generating sets smaller than the adjustment mean value is reduced and adjusted downwards to the adjacent operable area, and the output of the hydroelectric generating sets larger than the adjustment mean value is increased and adjusted upwards to the adjacent operable area. Therefore, the output balance of the hydroelectric generator set in the whole hydropower station is ensured, and other types of units are not influenced as far as possible.
Next, a hydroelectric generating set purge system in a real-time market proposed according to an embodiment of the present invention will be described with reference to the accompanying drawings.
Fig. 4 is a schematic structural diagram of a hydroelectric generating set clearing system in a real-time market according to an embodiment of the present invention.
The system specifically comprises:
the acquiring module 101 is used for acquiring declaration information of the hydroelectric generating set in an electric power spot market, and acquiring operation information and quotation data of the hydroelectric generating set based on the declaration information;
the first processing module 102 is configured to make a step pricing curve of the hydroelectric generating set according to the operation information and the quotation data of the hydroelectric generating set;
the first clearing module 103 is used for performing first round clearing on the units in the electric power spot market based on the stepped volume price curve to obtain output distribution data of the hydroelectric generating set;
the second processing module 104 is configured to re-determine the upper and lower output limit constraints of the hydroelectric generating set according to the operation information and the output distribution data of the hydroelectric generating set;
and the second clearing module 105 is used for carrying out second round clearing on the units in the electric power spot market based on the re-determined upper and lower output limit constraints.
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. 5, an embodiment of the present invention provides a cleaning apparatus for a hydroelectric generating set in a real-time market, 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 method for hydroelectric generating set clearing in the real-time market.
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 method for clearing the hydroelectric generating set in the real-time market 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 of ordinary skill in the art will be able to 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 (8)
1. A method for clearing a hydroelectric generating set in a real-time market is characterized by comprising the following steps:
acquiring declaration information of a hydroelectric generating set in an electric power spot market, and acquiring running information and quotation data of the hydroelectric generating set based on the declaration information;
according to the operation information and the quotation data of the hydroelectric generating set, making a step volume price curve of the hydroelectric generating set;
performing first round clearing on the unit in the electric power spot market based on the step volume price curve to obtain output distribution data of the hydroelectric generating set;
re-determining the upper and lower limit constraints of the output of the hydroelectric generating set according to the operation information and the output distribution data of the hydroelectric generating set;
performing second round of clearing on the units in the electric power spot market based on the upper and lower output limit constraints after the hydroelectric generating set is re-determined;
the step of re-determining the upper and lower limit constraints of the output of the hydroelectric generating set according to the operation information and the output distribution data of the hydroelectric generating set specifically comprises the following steps:
if the output distribution data falls into the vibration region of the hydroelectric generating set, taking the output range of the operable region before or after the vibration region as the output upper and lower limit constraints of the hydroelectric generating set;
the step of taking the output range of the operable area before or after the vibration area as the upper and lower output limits of the hydroelectric generating set is specifically as follows:
acquiring upper and lower output limits of the vibration region, and determining the output mean value of the vibration region;
comparing said contribution distribution data with said mean contribution for the vibration region;
if the output distribution data are larger than the output mean value, taking the output range of the operable area behind the vibration area as the output upper and lower limit constraints of the hydroelectric generating set;
and if the output distribution data is smaller than the output mean value, taking the output range of the operable area before the vibration area as the output upper and lower limit constraints of the hydroelectric generating set.
2. The method according to claim 1, wherein the step of generating a step price curve of the hydroelectric generating set according to the operation information and the price data of the hydroelectric generating set specifically comprises:
dividing the output of the hydroelectric generating set into an operable area and a vibration area according to the operation information of the hydroelectric generating set;
making a step volume price curve of the hydroelectric generating set operable area based on the quoted price data;
and making a step volume price curve of the vibration area of the hydroelectric generating set according to the quotation data of the operable area before and/or after the vibration area.
3. The method according to claim 2, further comprising the steps of: and based on the stepped volume price curve of the operable area of the hydroelectric generating set, the operable area of the hydroelectric generating set is divided again.
4. The method according to claim 2, wherein the step of generating a step price curve of the vibration area of the hydroelectric generating set according to the price data of the operable area before and/or after the vibration area comprises:
taking the average value of the quotation data of the operable area before and after the vibration area as the quotation data of the vibration area;
and making a stepped volume price curve of the vibration area of the hydroelectric generating set based on the quoted price data of the vibration area.
5. The method according to any one of claims 2 to 4, wherein the step of re-determining the upper and lower output limit constraints of the hydroelectric generating set according to the operation information and output allocation data of the hydroelectric generating set specifically comprises:
and if the output distribution data falls into the operable area of the hydroelectric generating set, taking the output range of the operable area as the output upper and lower limit constraints of the hydroelectric generating set.
6. The utility model provides a hydroelectric generating set goes out clear system in real-time market which characterized in that includes:
the acquisition module is used for acquiring declaration information of the hydroelectric generating set in an electric power spot market, and acquiring operation information and quotation data of the hydroelectric generating set based on the declaration information;
the first processing module is used for making a stepped volume price curve of the hydroelectric generating set according to the operation information and the quotation data of the hydroelectric generating set;
the first clearing module is used for carrying out first round clearing on the units in the electric power spot market based on the stepped volume price curve to obtain output distribution data of the hydroelectric generating set;
the second processing module is used for re-determining the upper and lower output limit constraints of the hydroelectric generating set according to the operation information and the output distribution data of the hydroelectric generating set;
the second clearing module is used for carrying out second round clearing on the unit in the electric power spot market based on the upper and lower output limit constraints after the re-determination;
the step of re-determining the upper and lower limit constraints of the output of the hydroelectric generating set according to the operation information and the output distribution data of the hydroelectric generating set specifically comprises the following steps:
if the output distribution data falls into the vibration region of the hydroelectric generating set, taking the output range of the operable region before or after the vibration region as the output upper and lower limit constraints of the hydroelectric generating set;
the step of taking the output range of the operable area before or after the vibration area as the upper and lower output limits of the hydroelectric generating set is specifically as follows:
acquiring upper and lower output limits of the vibration region, and determining the output mean value of the vibration region;
comparing said contribution distribution data with said mean contribution for the vibration region;
if the output distribution data is larger than the output mean value, taking the output range of the operable area behind the vibration area as the output upper and lower limit constraints of the hydroelectric generating set;
and if the output distribution data is smaller than the output mean value, taking the output range of the operable area before the vibration area as the output upper and lower limit constraints of the hydroelectric generating set.
7. The utility model provides a hydroelectric generating set in real-time market goes out clear device which characterized in that includes:
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 a hydroelectric generating set clearing method in a real-time market according to any of claims 1-5.
8. A medium having stored therein processor-executable instructions, characterized in that: the processor-executable instructions, when executed by the processor, are for implementing a hydroelectric generating set clearing method in a real-time market according to any one of claims 1-5.
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| CN112288276A (en) * | 2020-10-28 | 2021-01-29 | 中国南方电网有限责任公司 | Real-time market clearing rapid calculation method considering hydropower vibration region constraint |
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| US6490506B1 (en) * | 1999-05-21 | 2002-12-03 | Hydro Resource Solutions Llc | Method and apparatus for monitoring hydroelectric facility maintenance and environmental costs |
| CN110555590A (en) * | 2019-07-31 | 2019-12-10 | 云南电网有限责任公司 | secondary clearing method for watershed cascade upstream and downstream power stations participating in electric power spot market |
| CN110633889A (en) * | 2019-07-31 | 2019-12-31 | 中国电力科学研究院有限公司 | Regional spot market technical support system |
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| CN110555590A (en) * | 2019-07-31 | 2019-12-10 | 云南电网有限责任公司 | secondary clearing method for watershed cascade upstream and downstream power stations participating in electric power spot market |
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