Frequency Response of Synchronous Generators and Battery Energy Storage Systems: A Comparative Study

2019 29th Australasian Universities Power Engineering Conference (AUPEC) Pub Date : 2019-11-01 DOI:10.1109/AUPEC48547.2019.211850

M. R. Amin, M. Negnevitsky, E. Franklin, Seyed Behzad Naderi

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引用次数: 2

Abstract

In this paper, a comparison of power system frequency response is conducted for a simple modelled power system with primary frequency control being provided either by synchronous generators or by inverter-based Battery Energy Storage (BES) systems. Mathematical models of conventional governor and turbine are developed, representing conventional synchronous generator frequency control, and are used to illustrate system frequency response for a range of typical conventional generating units. A mathematical model of a power-electronics interfaced Li-ion BES system is developed and used to represent a non-synchronous inverter-based generator with primary frequency control capabilities. MATLAB/Simulink is used to build a model of a small power system, and simulations are carried out with at a range of typical conventional synchronous generating units with a nonsynchronous generating unit in the power system. The simulation results demonstrate that the BES can be used for primary frequency control providing a faster and better response. BES is also capable of almost eliminating frequency overshoot and reducing 70% of settling time while providing primary frequency control in power system with various types of conventional synchronous generating units and a nonsynchronous generating unit.

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同步发电机与蓄电池储能系统的频率响应比较研究

本文对由同步发电机和基于逆变器的蓄电池储能(BES)系统提供一次频率控制的简单电力系统进行了频率响应比较。建立了代表常规同步发电机频率控制的常规调速器和水轮机的数学模型，并用于说明一系列典型的常规发电机组的系统频率响应。建立了电力电子接口锂离子BES系统的数学模型，并用于表示具有一次频率控制能力的非同步逆变器发电机。利用MATLAB/Simulink建立了小型电力系统的模型，并在一定范围内对电力系统中典型的常规同步发电机组和非同步发电机组进行了仿真。仿真结果表明，BES可用于一次频率控制，具有更快、更好的响应。BES几乎可以消除频率超调，减少70%的稳定时间，同时为各种类型的常规同步发电机组和非同步发电机组的电力系统提供一次频率控制。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2019 29th Australasian Universities Power Engineering Conference (AUPEC)

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