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Energy storage system operation optimization method

An energy storage system, operation optimization technology, applied in the direction of AC network with energy trade/energy transmission authority, AC network load balancing, reducing/preventing power oscillation, etc., can solve problems such as hindering the development of energy storage, and achieve energy storage The effect of comprehensive income

Pending Publication Date: 2021-03-19
SHENZHEN POWER SUPPLY BUREAU
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Problems solved by technology

At present, the single operation mode of the energy storage system has brought more uncertainties to its grid connection revenue, which has hindered the development of energy storage to a certain extent.

Method used

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  • Energy storage system operation optimization method

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Embodiment Construction

[0044] The technical scheme of the present invention is described in detail below in conjunction with accompanying drawing:

[0045] Such as figure 1 , an energy storage system operation optimization method, comprising the following steps:

[0046] Step 1: Establish a time-of-use electricity price mechanism for daily energy storage battery charge and discharge peaks and valleys. In daily situations, the energy storage system conducts arbitrage through the electricity price difference at different times. According to different power market electricity price rule mechanisms, a corresponding energy storage battery electricity price mechanism can be established:

[0047]

[0048] Among them, C n (t) is the charge and discharge electricity price of the energy storage battery at time t, t is the time period, η p , η f and η v Respectively peak electricity price, average peak electricity price, low valley electricity price, T p , T f and T v peak hours, off-peak hours, and...

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Abstract

The invention discloses an energy storage system operation optimization method. The method comprises the following steps of 1, establishing a daily energy storage battery charging and discharging peak-valley time-of-use electricity price mechanism; 2, establishing a compensation mechanism of energy storage participating in power grid frequency modulation; 3, establishing an energy storage life calculation mechanism; 4, establishing a maximum optimization objective function of the energy storage comprehensive income; 5, establishing energy storage charging and discharging and power system constraint conditions; 6, calculating an operation strategy of the energy storage system by adopting a particle swarm algorithm. According to the invention, maximization of energy storage comprehensive benefits can be realized on the premise of ensuring safe operation of a power grid.

Description

technical field [0001] The invention relates to an operation optimization method of an energy storage system. Background technique [0002] In recent years, energy storage systems have been widely used in power systems due to their dual capabilities of flexible power regulation and energy carrying. There are a number of ways in which energy storage systems can assist in the integration of renewable energy into the grid and effectively achieve power balancing during power outages. Energy storage therefore has the potential to significantly improve grid efficiency, stability, and resilience. Although the advancement of technology and the reduction of energy storage costs have promoted the popularization and application of energy storage in power systems, the investment cost of energy storage is still high at this stage, and energy storage systems face the problem of insufficient economic benefits during the application process. [0003] The reform of the electricity market h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/28H02J3/00H02J3/24H02J3/06
CPCH02J3/28H02J3/008H02J3/241H02J3/06
Inventor 李颖杰庞宁黄安子易潇然王琦任磊
Owner SHENZHEN POWER SUPPLY BUREAU