大规模储能电源参与电网快速调频的关键理论与技术研究

项目名称： 大规模储能电源参与电网快速调频的关键理论与技术研究

项目编号： No.51477043

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 电工技术

项目作者： 李欣然

作者单位： 湖南大学

项目金额： 82万元

中文摘要： 随着高渗透率风电的大规模并网，现有调频容量不足的问题日益突出。储能系统的快速响应特性使得其作为电网调频的辅助手段，能够满足电网的稳定性和可靠性要求。以此为背景，本项目拟通过构建储能系统的技术经济模型，分析储能技术参与电网调频的必要性、优势以及价值；研究区域电网和传统电源的频率特性，确定储能系统参与一次调频时频率增量与负荷增量的内在联系，提出储能系统参与二次调频时区域控制误差信号的分配方法，确定储能系统的最佳投运时机和深度；研究储能系统参与调频的应用场景，获取各场景下性能/经济最优的容量配置方案；研究储能的技术经济参量与电网频率稳定性的相互作用与制约关系，确定参与调频应用的储能系统的主导特征参量，揭示其改善电网调频能力的机理；研究储能系统进行电网调频的协调控制方法，开发储能系统参与电网调频的集控控制技术软件包。此课题研究成果可有效引导储能系统在我国电网调频领域中的推广应用与规划建设方向。

中文关键词： 智能电网；储能系统；频率调节；容量配置；协调控制

英文摘要： Accompanied with massive penetration of wind power of high permeability，the shortage of reserves in the grid is more challenging than ever before. Meanwhile, ESS' (energy storage system) features of rapid response have made it capable of securing stability and reliability of the grid, thus, a new option for auxiliary services like frequency regulation. Under this circumstance, the project intends to construct a technical and economic assessment model of ESSs, analyze the necessity, advantages and value of ESS' participation in frequency regulation of the grid. The project also aims at determining the intrinsic connection between frequency increment and load increment with ESS' participation in PFR (primary frequency regulation) by studying the frequency characteristics of regional power grids and that of conventional power generators, proposing an allocation method of the area control error signal with ESS' participation in SFR(secondary frequency regulation), determining the optimal commission timing and depth of ESSs; The project will research proper scenarios for ESS' application in frequency regulation and establish a capacity allocation model for ESSs to achieve optimal performance and economic benefits in these scenarios; By studying the interaction and constraints between technical and economic characteristic parameters of ESS and the stability of the grid frequency, the dominant characteristic parameters of ESS will be found out, unveiling the mechanism of ESS' ability to improve frequency regulation; At last, the project intends to put forward a coordinated control strategy for ESS' participation in frequency regulation and develop a centralized control software package for it. These research results can effectively promote the use of ESS in the field of domestic frequency regulation and guide its planning and construction.

英文关键词： smart grid;energy storage system;frequency regulation;capacity allocation;coordination control