Benefit evaluation method for energy storage system with energy storage participating in frequency modulation
An energy storage system and benefit technology, applied in the field of energy storage systems, can solve problems such as low solution efficiency, incomplete consideration of energy storage system benefits and losses, etc., and achieve the effects of improving efficiency, reducing data input, and improving solution efficiency
Inactive Publication Date: 2021-06-15
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1
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Problems solved by technology
[0008] The purpose of the present invention is to provide a method for evaluating the benefits of energy storage systems in which energy storage participates in frequency regulation, so as to solve the technical problems of incomplete consideration of benefits and losses in energy storage systems and low solution efficiency
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[0047] Embodiments of the present invention provide a benefit evaluation method of an energy storage system in which energy storage participates in frequency regulation, so as to solve the technical problems of incomplete consideration of the benefits and losses in the energy storage system and low solution efficiency.
[0048] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. A preferred embodiment of the invention is shown in the drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the present invention will be thorough and complete.
[0049] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the ...
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The invention discloses a benefit evaluation method for an energy storage system with energy storage participating in frequency modulation. The method comprises the steps of constructing constraint conditions of a battery participating in frequency modulation service in the energy storage system; establishing an energy storage system benefit evaluation model taking energy storage benefit maximization as an optimization target according to the constraint conditions; obtaining a typical day scene of each year according to historical market prices and frequency modulation signal data, solving the benefit evaluation model according to the typical day scene, and obtaining an optimal energy storage capacity distribution strategy of the corresponding year; and evaluating the energy storage benefit value of the energy storage system according to the optimal energy storage capacity distribution strategy. According to the energy storage system benefit evaluation model established by the invention, a frequency modulation revenue mechanism model is considered, and the internal influence of battery attenuation on energy storage benefits is considered by introducing an energy storage attenuation penalty term, so that the benefit evaluation model is more comprehensive and accurate; and typical day scene extraction is carried out on a lot of frequency modulation signals and market price data through a clustering method, the data input amount is reduced, and the solving efficiency of the evaluation model is improved.
Description
technical field [0001] The invention relates to the technical field of energy storage systems, in particular to an energy storage system benefit evaluation method in which energy storage participates in frequency regulation. Background technique [0002] With the rapid development of random renewable energy and energy storage technology, energy storage will be widely used in the future energy Internet. However, relatively high investment costs and uncertain returns hinder the development of large-scale energy storage systems. Therefore, it is necessary to study the economic benefit evaluation method for more comprehensive and accurate evaluation of energy storage in the energy market. [0003] However, existing research still has deficiencies: [0004] (1) Insufficient consideration of the benefits and losses in the energy storage system; [0005] In the current research, there are relatively few related studies on the introduction of battery cycle life decay into the ene...
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Patent Timeline
Login to View More IPC IPC(8): H02J3/24H02J3/28G06Q10/06
CPCH02J3/241H02J3/28G06Q10/06375H02J2203/20Y04S10/50Y02P90/82Y02E40/70
Inventor 袁智勇郭祚刚雷金勇徐敏王琦黎小林唐学用
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD