CN114844107A - Quantitative evaluation method and system for new energy peak regulation demand of power system - Google Patents

Quantitative evaluation method and system for new energy peak regulation demand of power system Download PDF

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Publication number
CN114844107A
CN114844107A CN202210611395.3A CN202210611395A CN114844107A CN 114844107 A CN114844107 A CN 114844107A CN 202210611395 A CN202210611395 A CN 202210611395A CN 114844107 A CN114844107 A CN 114844107A
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China
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new energy
power system
peak
scheme
peak shaving
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Inventor
孙沛
张雨津
孙骁强
李庆海
段乃欣
李雨田
杨楠
汪莹
李海伟
杨攀峰
霍超
张小奇
万筱钟
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Northwest Branch Of State Grid Corp Of China
Northwest Electric Power Design Institute of China Power Engineering Consulting Group
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Northwest Branch Of State Grid Corp Of China
Northwest Electric Power Design Institute of China Power Engineering Consulting Group
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Priority to CN202210611395.3A priority Critical patent/CN114844107A/en
Publication of CN114844107A publication Critical patent/CN114844107A/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/381—Dispersed generators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
    • H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20—The dispersed energy generation being of renewable origin
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

The invention provides a method and a system for quantitatively evaluating new energy peak regulation requirements of a power system. The method comprises the following steps: obtaining relevant parameters of peak shaving capacity in the power system; calculating the peak shaving capacity of the equivalent new energy of the power system according to the equal power curtailment principle based on the peak shaving capacity related parameters; and aiming at each scheme of the new energy planning basis of the power system, respectively solving the effective capacity under the target power curtailment rate corresponding to the new energy theoretical output sequence, and calculating the new energy peak regulation requirement of each scheme. The peak load regulation demand of the new energy of the power system is quantitatively solved by combining the new energy resource characteristics of the power system to be researched. By adopting the method, the new energy peak regulation requirement of the power system can be quantitatively analyzed, and support is provided for further solving the problem of consumption.

Description

Quantitative evaluation method and system for new energy peak regulation demand of power system
Technical Field
The invention relates to the field of power system planning, in particular to a method and a system for quantitatively evaluating new energy peak regulation requirements of a power system.
Background
In the planning stage of the power system, the peak shaving requirement of the new energy of the power system is generally required to be evaluated so as to plan the peak shaving power supply and control the power abandonment rate of the new energy to be at a reasonable level. When the new energy peak regulation demand of the power system is evaluated, quantitative analysis is difficult generally, and the method of calculating the power abandonment rate of the power system by production simulation is adopted for side reflection.
Disclosure of Invention
The invention aims to provide a method and a system for quantitatively evaluating the peak load regulation requirement of new energy of a power system. The method can quantitatively calculate the peak load regulation requirement of the new energy of the power system, and has the characteristics of convenience and quickness in calculation.
In order to achieve the purpose, the invention adopts the following technical scheme:
a quantitative evaluation method for peak load regulation demand of new energy of an electric power system comprises the following steps:
obtaining relevant parameters of peak shaving capacity in the power system;
calculating the peak shaving capacity of the equivalent new energy of the power system according to the equal power curtailment principle based on the peak shaving capacity related parameters;
and aiming at each scheme of the new energy planning basis of the power system, respectively solving the effective capacity under the target power curtailment rate corresponding to the new energy theoretical output sequence, and calculating the new energy peak regulation requirement of each scheme.
As a further improvement of the invention, the related parameters of the peak regulation capacity comprise load, direct current delivery, power supply installed scale, power supply regulation capacity and new energy output characteristics.
As a further improvement of the present invention, the calculating of the peak shaving capacity of the equivalent new energy of the power system based on the peak shaving capacity related parameter according to the principle of the equivalent electricity abandonment includes:
electric power system new energy electric quantity abandon E obtained based on electric power system production simulation calculation 0 (ii) a Acquiring new energy theoretical output sequence { C of power system Ri Where i ═ 1,2,3, …, 8760;
the initial value of the variable to be solved is equal to the maximum theoretical output C of the new energy N ＝max(C Ri ) (ii) a Searching downwards according to step length delta C to update variable C to be solved N I.e. C N ＝C N - Δ C; obtaining the corresponding new energy electric quantity E of the electric power system 1 ＝∑ i max(C Ri -C N ,0)；
Comparing the electric quantity E of the new energy discarded by the electric power system 1 Electric quantity E abandoned by new energy of electric power system 0 Whether the calculated new energy power abandon amount is within the error epsilon range or not;
if the error range is within, the variable C to be solved N The peak shaving capacity of the equivalent new energy of the power system.
As a further improvement of the invention, the comparison power system new energy abandoned electric quantity E 1 Electric quantity E abandoned by new energy of electric power system 0 Whether the calculated new energy power abandon amount is within the error epsilon range or not;
if not, the variable C to be solved is updated by searching downwards according to the step length delta C N And (4) recalculating until the error meets the requirement.
As a further improvement of the present invention, for each scheme based on the new energy planning of the power system, respectively solving the effective capacity under the target power curtailment rate corresponding to the theoretical output sequence of the new energy, and calculating the peak shaving demand of the new energy of each scheme specifically includes:
respectively calculating the new energy theoretical output sequence { C 'of each scheme according to the scheme data to be calculated' Ri Wherein i ═ 1,2,3, …,8760 };
calculating effective capacity C under a target power abandoning rate corresponding to the new energy theoretical output sequence;
calculating new energy peak regulation demand C of electric power system of corresponding scheme E ＝C-C N If the new energy peak regulation demand C E If the peak value is negative, the peak regulation still has surplus;
and repeating the steps until the peak shaving requirements of all the schemes are calculated, and obtaining the new energy peak shaving requirement of each scheme.
The invention provides a quantitative evaluation system for new energy peak regulation demand of a power system, which comprises:
the parameter acquisition module is used for acquiring peak shaving capacity related parameters in the power system;
the first calculation module is used for calculating the peak shaving capacity of the equivalent new energy of the power system according to the equal power curtailment principle based on the peak shaving capacity related parameters;
and the second calculation module is used for respectively solving the effective capacity under the target power curtailment rate corresponding to the new energy theoretical output sequence aiming at each scheme of the new energy planning basis of the power system and calculating the new energy peak regulation requirement of each scheme.
The first calculation module is specifically configured to:
electric power system new energy electric quantity abandon E obtained based on electric power system production simulation calculation 0 (ii) a Acquiring new energy theoretical output sequence { C of power system Ri Where i ═ 1,2,3, …, 8760;
let the variable to be solvedThe initial value of (A) is equal to the maximum theoretical output C of the new energy N ＝max(C Ri ) (ii) a Searching downwards according to step length delta C to update variable C to be solved N I.e. C N ＝C N - Δ C; obtaining the corresponding new energy electric quantity E of the electric power system 1 ＝∑ i max(C Ri -C N ,0)；
Comparing the electric quantity E of the new energy abandoned of the electric power system 1 Electric quantity E abandoned by new energy of electric power system 0 Whether the calculated new energy power abandon amount is within the error epsilon range or not;
if the error range is within, the variable C to be solved N The peak shaving capacity of the equivalent new energy of the power system.
The second calculation module is specifically configured to:
respectively calculating the new energy theoretical output sequence { C 'of each scheme according to the scheme data to be calculated' Ri Wherein i ═ 1,2,3, …,8760 };
calculating effective capacity C under a target power abandoning rate corresponding to the new energy theoretical output sequence;
calculating new energy peak regulation demand C of electric power system of corresponding scheme E ＝C-C N If the peak shaving demand of new energy is C E If the peak value is negative, the peak regulation still has surplus;
and repeating the steps until the peak shaving requirements of all the schemes are calculated, and obtaining the new energy peak shaving requirement of each scheme.
The invention provides a quantitative evaluation device for peak regulation requirements of new energy of a power system, which comprises:
a memory for storing a plurality of data to be transmitted,
a processor for processing the received data, wherein the processor is used for processing the received data,
the processor is configured to: and executing the quantitative evaluation method for the peak regulation demand of the new energy of the power system.
A computer readable storage medium, wherein instructions in the storage medium, when executed by a processor, enable the processor to perform the method for quantitatively evaluating new energy peak shaving requirements of a power system.
Compared with the prior art, the invention has the beneficial effects that:
for a researched power generation power system, the method introduces the concept of the equivalent new energy peak regulation capability, solves the peak regulation demand of the new energy of the power system quantitatively by an equivalent energy method according to the equivalent new energy peak regulation capability of the power system and the new energy resource characteristics of the researched power system. By adopting the method, the new energy peak regulation requirement of the power system can be quantitatively analyzed, and support is provided for further solving the problem of consumption. Therefore, the method can quantitatively calculate the peak load regulation requirement of the new energy of the power system, and has the characteristics of convenience and quickness in calculation.
Drawings
FIG. 1 is a schematic flow chart of a quantitative evaluation method for peak shaving demand of new energy in an electric power system according to the present invention;
FIG. 2 is a detailed policy flow diagram of the present invention;
FIG. 3 is a schematic diagram of a system for quantitatively evaluating peak shaving requirements of new energy resources of an electric power system according to the present invention;
fig. 4 is a schematic structural diagram of an electronic device according to the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making creative efforts based on the embodiments in the present invention, shall fall within the protection scope of the present invention.
As shown in fig. 1, a method for quantitatively evaluating peak shaving demand of new energy in an electric power system includes the following steps:
1) collecting data such as load, direct current delivery, power supply installation scale, power supply regulation capacity, new energy output characteristics and the like in a researched power system;
2) calculating the equivalent new energy peak regulation capacity of the power system based on the equal electricity abandonment principle, and skipping the step if the equivalent new energy peak regulation capacity is known;
3) and aiming at each scheme, solving the effective capacity under the target power rejection rate corresponding to the new energy theoretical output sequence, and calculating the new energy peak regulation requirement of the scheme.
The present invention will be described in detail below with reference to specific embodiments and the accompanying drawings.
The following is a detailed description of an example of a provincial power grid. It should be emphasized that the following description is merely exemplary in nature and is in no way intended to limit the scope of the invention or its applications.
Examples
A basic scheme for planning new energy in a certain province is that installed scale wind power is 3100 ten thousand kilowatts and photovoltaic power is 1550 ten thousand kilowatts. Solving the following scheme, wherein the peak load regulation demand of the new energy of the power system is that when the target power rejection rate is 5 percent:
the first scheme is as follows: wind power 3300 ten thousand kilowatts, photovoltaic 1700 ten thousand kilowatts, other conditions are unchanged;
scheme II: the wind power is 3500 ten thousand kilowatts, the photovoltaic power is 2000 ten thousand kilowatts, and other conditions are unchanged.
As shown in fig. 2, the method comprises the following specific operation steps:
(1) collecting data such as load, direct current delivery, power supply installation scale, power supply regulation capacity, new energy output characteristics and the like in a researched power system;
(2) calculating the equivalent new energy peak regulation capacity of the power system:
1) firstly, calculating based on production simulation software to obtain the new energy abandoned electric quantity E of the electric power system 0 . By performing production simulation calculation on the province, the electricity abandonment amount of the power system is 52.03 hundred million kilowatt hours.
2) Arranging new energy theoretical output sequence { C Ri Where i is 1,2,3, …,8760 }. The theoretical output statistics of the provincial and new energy resources can obtain an output sequence of {439,627.., 323}, the unit of which is ten thousand kilowatts.
3) The initial value of the variable to be solved is equal to the maximum theoretical output C of the new energy N ＝max(C Ri ). In this province C N 3745 kilowatts.
4) Updating the variable to be solved, i.e. C, by searching downwards in step size Δ C N ＝C N - Δ C. Step length of 1 ten thousand kilowatts is taken, and the first iteration C N ＝3745-1 equals 3744 ten thousand kilowatts.
5) Corresponding electric power system new energy electric quantity abandoning E 1 ＝∑ i max(C Ri -C N ,0). For the first iteration, the power discard amount is 0.98 kilowatt-hour.
6) Comparing whether the new energy power abandon amount calculated by the two methods is within the error epsilon range, namely whether the new energy power abandon amount satisfies | E 1 -E 0 If | ≦ ε, entering the next step within the error range, otherwise jumping to 4). And taking the calculation error as 0.01 hundred million kilowatt hours, and turning to 4) when the first iteration calculation error does not meet the requirement. Up to C N When 1930, the error meets the requirement.
7)C N Namely the equivalent new energy peak regulation capacity of the power system. The equivalent new energy peak regulation capacity of the power system is 1930 ten thousand kilowatts.
3. Calculating the power rejection rate of each scheme:
1) inputting the scheme data to be calculated. The input scheme is that wind power 3300 ten thousand kilowatts and photovoltaic 1700 ten thousand kilowatts are input.
2) New energy theoretical output sequence { C 'of calculation scheme' Ri Where i is 1,2,3, …,8760 }. The theoretical output sequence of the new energy of the scheme is {486,683.., 325}, and the unit is ten thousand kilowatts.
3) And solving the effective capacity under the target power curtailment rate corresponding to the new energy theoretical output sequence. In the scheme, through analysis of a theoretical output sequence of the new energy, the effective capacity C corresponding to the 5% power abandon rate is 2100 ten thousand kilowatts.
4) Calculating the peak regulation demand of the new energy of the electric power system of the scheme: C-C N 2100 + 1930 + 170 ten thousand kilowatts.
5) And repeating the steps 1) to 4) until the peak load regulation requirements of the new energy resources of all the schemes are calculated. The calculation result is as follows, the peak regulation requirement of a new energy source of the scheme is 170 ten thousand kilowatts; scheme two new energy peak shaving requires 330 ten thousand kilowatts.
As shown in fig. 3, the present invention further provides a system for quantitatively evaluating and determining peak shaving demand of new energy in an electrical power system, including:
the parameter acquisition module is used for acquiring peak shaving capacity related parameters in the power system;
the first calculation module is used for calculating the peak shaving capacity of the equivalent new energy of the power system according to the equal power curtailment principle based on the peak shaving capacity related parameters;
and the second calculation module is used for respectively solving the effective capacity under the target power curtailment rate corresponding to the new energy theoretical output sequence aiming at each scheme of the new energy planning basis of the power system and calculating the new energy peak regulation requirement of each scheme.
As a preferred embodiment, the first calculating module is specifically configured to:
electric power system new energy electric quantity abandon E obtained based on electric power system production simulation calculation 0 (ii) a Acquiring new energy theoretical output sequence { C of power system Ri Where i ═ 1,2,3, …, 8760;
the initial value of the variable to be solved is equal to the maximum theoretical output C of the new energy N ＝max(C Ri ) (ii) a Searching downwards according to step length delta C to update variable C to be solved N I.e. C N ＝C N - Δ C; obtaining the corresponding new energy electric quantity E of the electric power system 1 ＝∑ i max(C Ri -C N ,0)；
Comparing the electric quantity E of the new energy abandoned of the electric power system 1 Electric quantity E abandoned by new energy of electric power system 0 Whether the calculated new energy power abandon amount is within the error epsilon range or not;
if the error range is within, the variable C to be solved N The peak shaving capacity of the equivalent new energy of the power system.
The second calculation module is specifically configured to:
respectively calculating the new energy theoretical output sequence { C 'of each scheme according to the scheme data to be calculated' Ri Wherein i ═ 1,2,3, …,8760 };
calculating effective capacity C under a target power abandoning rate corresponding to the new energy theoretical output sequence;
calculating new energy peak regulation demand C of electric power system of corresponding scheme E ＝C-C N If the peak shaving demand of new energy is C E If the peak value is negative, the peak regulation still has surplus;
and repeating the steps until the peak shaving requirements of all the schemes are calculated, and obtaining the new energy peak shaving requirement of each scheme.
As shown in fig. 4, another objective of the present invention is to provide an apparatus for quantitatively evaluating peak shaving demand of new energy in an electric power system, comprising:
a memory for storing a plurality of data to be transmitted,
a processor for processing the received data, wherein the processor is used for processing the received data,
the processor is configured to: and executing the quantitative evaluation method for the peak load regulation demand of the new energy of the power system.
The invention also provides a computer readable storage medium, wherein when the instructions in the storage medium are executed by the processor, the processor can execute the quantitative evaluation method for the peak shaving requirement of the new energy of the power system.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Finally, it should be noted that: although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.

Claims (10)

1. A quantitative evaluation method for peak load regulation demand of new energy of an electric power system is characterized by comprising the following steps:
obtaining relevant parameters of peak shaving capacity in the power system;
calculating the peak shaving capacity of the equivalent new energy of the power system according to the equal power curtailment principle based on the peak shaving capacity related parameters;
and aiming at each scheme of the new energy planning basis of the power system, respectively solving the effective capacity under the target power curtailment rate corresponding to the new energy theoretical output sequence, and calculating the new energy peak regulation requirement of each scheme.
2. The method according to claim 1, wherein the parameters related to peak shaving capability include load, dc delivery, installed size of power supply, power supply regulation capability, and new energy output characteristics.
3. The quantitative evaluation method for the peak shaving demand of the new energy of the power system according to claim 1, wherein the calculating of the peak shaving capacity of the equivalent new energy of the power system based on the peak shaving capacity related parameters according to the equal power curtailment principle comprises the following steps:
electric power system new energy electric quantity abandon E obtained based on electric power system production simulation calculation 0 (ii) a Acquiring new energy theoretical output sequence { C of power system Ri 8760, where i ═ 1,2, 3.;
the initial value of the variable to be solved is equal to the maximum theoretical output C of the new energy N ＝max(C Ri ) (ii) a Searching downwards according to step length delta C to update variable C to be solved N I.e. C N ＝C N - Δ C; obtaining the corresponding new energy electric quantity E of the electric power system 1 ＝∑ i max(C Ri -C N ，0)；
Comparing the electric quantity E of the new energy abandoned of the electric power system 1 Electric quantity E abandoned by new energy of electric power system 0 Whether the calculated new energy power abandon amount is within the error epsilon range or not;
if the error range is within, the variable C to be solved N The peak shaving capacity of the equivalent new energy of the power system.
4. The method according to claim 3, wherein the method for quantitatively evaluating the peak load regulation demand of the new energy of the power system,
comparing the new energy abandoned electric quantity E of the electric power system 1 Electric quantity E abandoned by new energy of electric power system 0 Whether the calculated new energy power abandon amount is within the error epsilon range or not;
if not, the variable C to be solved is updated by searching downwards according to the step length delta C N And (4) recalculating until the error meets the requirement.
5. The method according to claim 1, wherein for each scheme of a new energy planning basis of the power system, the effective capacity under the target power curtailment rate corresponding to the theoretical output sequence of the new energy is respectively solved, and the peak shaving demand of the new energy of each scheme is calculated, specifically including:
respectively calculating the new energy theoretical output sequence { C 'of each scheme according to the scheme data to be calculated' Ri Wherein i ═ 1,2,3,.., 8760 };
calculating effective capacity C under a target power abandoning rate corresponding to the new energy theoretical output sequence;
calculating new energy peak regulation demand C of electric power system of corresponding scheme E ＝C-C N If the peak shaving demand of new energy is C E If the peak value is negative, the peak regulation still has surplus;
and repeating the steps until the peak shaving requirements of all the schemes are calculated, and obtaining the new energy peak shaving requirement of each scheme.
6. A system for quantitatively evaluating peak regulation demand of new energy of an electric power system is characterized by comprising:
the parameter acquisition module is used for acquiring peak shaving capacity related parameters in the power system;
the first calculation module is used for calculating the peak shaving capacity of the equivalent new energy of the power system according to the equal power curtailment principle based on the peak shaving capacity related parameters;
and the second calculation module is used for respectively solving the effective capacity under the target power curtailment rate corresponding to the new energy theoretical output sequence aiming at each scheme of the new energy planning basis of the power system and calculating the new energy peak regulation requirement of each scheme.
7. The system according to claim 6, wherein the first calculation module is specifically configured to:
electric power system new energy electric quantity abandon E obtained based on electric power system production simulation calculation 0 (ii) a Acquiring new energy theoretical output sequence { C of power system Ri 8760, where i ═ 1,2, 3.;
the initial value of the variable to be solved is equal to the maximum theoretical output C of the new energy N ＝max(C Ri ) (ii) a Search down by step size Δ CUpdating the variable C to be solved N I.e. C N ＝C N - Δ C; obtaining the corresponding new energy electric quantity E of the electric power system 1 ＝∑ i max(C Ri -C N ，0)；
Comparing the electric quantity E of the new energy abandoned of the electric power system 1 Electric quantity E abandoned by new energy of electric power system 0 Whether the calculated new energy power abandon amount is within the error epsilon range or not;
if the error range is within, the variable C to be solved N The peak shaving capacity of the equivalent new energy of the power system.
8. The system according to claim 6, wherein the second calculation module is specifically configured to:
respectively calculating the new energy theoretical output sequence { C 'of each scheme according to the scheme data to be calculated' Ri Wherein i ═ 1,2,3,.., 8760 };
calculating effective capacity C under a target power abandoning rate corresponding to the new energy theoretical output sequence;
calculating new energy peak regulation demand C of electric power system of corresponding scheme E ＝C-C N If the peak shaving demand of new energy is C E If the peak value is negative, the peak regulation still has surplus;
and repeating the steps until the peak shaving requirements of all the schemes are calculated, and obtaining the new energy peak shaving requirement of each scheme.
9. The utility model provides a power system new forms of energy peak regulation demand quantitative evaluation equipment which characterized in that includes:
a memory for storing a plurality of data to be transmitted,
a processor for processing the received data, wherein the processor is used for processing the received data,
the processor is configured to: the method for quantitatively evaluating the peak shaving demand of the new energy of the power system according to any one of claims 1 to 5 is carried out.
10. A computer-readable storage medium, wherein instructions in the storage medium, when executed by a processor, enable the processor to perform the power system new energy peak shaving demand quantitative assessment method of any one of claims 1 to 5.
CN202210611395.3A 2022-05-31 2022-05-31 Quantitative evaluation method and system for new energy peak regulation demand of power system Pending CN114844107A (en)

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CN202210611395.3A CN114844107A (en) 2022-05-31 2022-05-31 Quantitative evaluation method and system for new energy peak regulation demand of power system

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CN114844107A true CN114844107A (en) 2022-08-02

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