Wide-area distributed energy-storage system coordinated dispatching method by considering peak regulation and pressure regulation demands

A distributed energy storage and coordinated dispatching technology, applied in the field of electrical engineering, can solve problems such as insufficient peak regulation capacity, insufficient voltage deviation, single dispatching target, etc.

Active Publication Date: 2019-02-01
STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST +1
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  • Abstract
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  • Application Information

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Problems solved by technology

This solves the technical problems of the existing technology, such as the single scheduling target of the energy storage system, the inability to effectively balan

Method used

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  • Wide-area distributed energy-storage system coordinated dispatching method by considering peak regulation and pressure regulation demands
  • Wide-area distributed energy-storage system coordinated dispatching method by considering peak regulation and pressure regulation demands
  • Wide-area distributed energy-storage system coordinated dispatching method by considering peak regulation and pressure regulation demands

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Embodiment Construction

[0029] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0030] like figure 1 As shown, a coordinated dispatching method for a wide-area distributed energy storage system considering peak regulation and voltage regulation requirements includes the following steps:

[0031] Step 1: Obtain grid parameters and distributed energy storage parameters.

[0032] The grid parameters include: thermal power unit economic parameters, system technical parameters, wind power unit technical parameters and thermal power technical parameters, and active power data of typical daily wind power and loads and reactive power data

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Abstract

The present invention discloses a wide-area distributed energy-storage system coordinated dispatching method by considering peak regulation and pressure regulation demands. The method comprises the steps of: obtaining power grid parameters and distributed energy storage parameters; taking the minimum of the sum of the routine thermal power generating unit operation cost and the node voltage deviation punishment cost as a target function; taking a wind turbine generator constraint, a system constraint and a battery energy storage system constraint as constraint conditions, and establishing a wide-area distributed energy-storage system coordinated dispatching model by considering the peak regulation and pressure regulation demands; in order to facilitate rapid and accurate solution of the model, employing a linearization tool as such as a big M method to perform voltage drop constraint, and performing linear processing of nonlinear form such as a voltage deviation penalty term in the target function; and finally, transferring a solution tool to solve the established model at a simulation calculation platform to obtain an electric power system dispatching scheme comprising distributedenergy storage.

Description

technical field [0001] The invention belongs to the field of electrical engineering, and more specifically relates to a method for coordinating and dispatching a wide-area distributed energy storage system considering the demand for peak regulation and voltage regulation. Background technique [0002] my country's current energy structure is relatively single. The primary energy source is mainly coal power, and the proportion of flexible power sources such as gas-fired power stations is very small. Therefore, the lack of system regulation capacity has caused difficulties in the operation and scheduling of large-scale wind power power systems. According to the consistency of wind power and load fluctuations, the peak-shaving effect of wind power can be divided into three situations: positive peak-shaving, negative peak-shaving and over-peak-shaving. In the "Three North" regions with abundant wind resources in my country, the principle of "setting power with heat" for heating ...

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Application Information

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IPC IPC(8): H02J3/00H02J3/28H02J3/12
CPCH02J3/008H02J3/12H02J3/28H02J2203/20Y02E10/76Y02E40/10
Inventor 饶宇飞李相俊甘伟杨海晶李朝晖张景超贾学翠李程昊滕卫军
Owner STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST
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