带储能的等效系统频率响应模型

IF 3.3 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Electric Power Systems Research Pub Date : 2024-11-09 DOI:10.1016/j.epsr.2024.111211

Jinjia Zhang , Ying Xue , Yuan Tang , Yiping Chen , Meng Chen , Xin He , Siqi Lin

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引用次数: 0

摘要

世界各地的电力系统都采用储能系统（ESS）提供频率响应（FR），以减少最大频率偏差。本文提出了一种带有 ESS 的新等效系统频率响应模型。考虑到同步发电机（SG）主导系统中的最大频率偏差，该模型可方便地用于评估系统频率低点，并计算储能容量和等效垂度。与现有的基于模糊逻辑、鲁棒控制、数据驱动控制和预测算法等控制策略的计算方法不同，所提出的方法(i) 使用等效容量和等效垂度来描述 SG 和 ESS 的故障频率，从而避免了求解高阶故障频率模型的困难，(ii) 不需要网络中 SG 的控制策略。因此，所提出的方法为计算 ESS 容量和等效垂度提供了一种简单而系统的方法。基于给定的最大频率偏差，使用可再生资源渗透率为 0%、25% 和 50% 的四发电机两区域 (4G2A) 系统和不同类型的 SG（水力和蒸汽 SG），证明了所提方法的有效性。

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Equivalent system frequency response model with energy storage

Providing Frequency Response (FR) using energy storage system (ESS) has been adopted in power systems worldwide to reduce the maximum frequency deviation. This paper presents a new equivalent system frequency response model with ESS. The model can be conveniently used to assess the system frequency nadir and calculate the capacity and equivalent droop of storage considering the maximum frequency deviation in a synchronous generator (SG) dominated system. Unlike existing calculation methods based on control strategies such as fuzzy-logic, robust control, data-driving control and predictive algorithm, the proposed method (i) uses the equivalent capacity and equivalent droop to describe the FR of SG and ESS, thereby avoids the difficulty in solving high-order FR model and (ii) does not need the control strategy of SGs in the network. Therefore, the proposed method provides a simple yet systematic method in calculating the capacity and equivalent droop of ESS. The effectiveness of the proposed method is demonstrated using the four-generator two-area (4G2A) system with 0 %, 25 % and 50 % penetration of renewable resources and different types of SGs (hydraulic and steam SG) based on the given maximum frequency deviation..

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来源期刊

Electric Power Systems Research 工程技术-工程：电子与电气

CiteScore

7.50

自引率

17.90%

发文量

963

审稿时长

3.8 months

期刊介绍： Electric Power Systems Research is an international medium for the publication of original papers concerned with the generation, transmission, distribution and utilization of electrical energy. The journal aims at presenting important results of work in this field, whether in the form of applied research, development of new procedures or components, orginal application of existing knowledge or new designapproaches. The scope of Electric Power Systems Research is broad, encompassing all aspects of electric power systems. The following list of topics is not intended to be exhaustive, but rather to indicate topics that fall within the journal purview. • Generation techniques ranging from advances in conventional electromechanical methods, through nuclear power generation, to renewable energy generation. • Transmission, spanning the broad area from UHV (ac and dc) to network operation and protection, line routing and design. • Substation work: equipment design, protection and control systems. • Distribution techniques, equipment development, and smart grids. • The utilization area from energy efficiency to distributed load levelling techniques. • Systems studies including control techniques, planning, optimization methods, stability, security assessment and insulation coordination.