Real-Time Dynamic Simulation of Korean Power Grid for Frequency Regulation Control by MW Battery Energy Storage System
Real-Time Dynamic Simulation of Korean Power Grid for Frequency Regulation Control by MW Battery Energy Storage System
复制标题
MW电池储能系统调频控制韩国电网实时动态仿真
DOI：
10.13044/j.sdewes.2016.04.0030
复制
发表时间：
2016
期刊：
影响因子：
--
通讯作者：
Geon
中科院分区：
文献类型：
--
作者：
Tae;M. Chung;K. Shin;Herie Park;Geon
本研究的目的是开发一个具有发电厂和电池模型的电网实时动态模拟器。利用该仿真器对连接电网的兆瓦级大容量储能系统的频率控制特性进行了研究。在本研究中，选择锂离子二次电池作为并网模型的电池之一。分析了模型在稳态和瞬态下的动力学特性。电池模型的变频控制系统通过根据过程变量和电网频率控制储能系统的功率，起到调节电网频率的作用。该电网模型以韩国现有电网为基础，包括电厂、变电站和电力需求。电力供应按涡轮发电机的类型分为火电、核电、水电、抽水蓄能、联合发电厂和电池，包括最大额定功率为500兆瓦的大容量储能系统。本研究涉及韩国电网的装机容量为87.17 GW，峰值负荷为77.30 GW。运行24小时，最大输出功率为61.59 GW，最小输出功率为46.32 GW。采用商业化的实时动态仿真软件ProTRAX。仿真观察了电厂发生故障、无调速器运行、自动发电控制运行、接入蓄电池储能系统时变频调速系统的运行特性。结果表明，该模型对各电厂的故障仿真是有效的。他们还证实，在模拟过程中，电池的输出功率和频率控制运行良好。
The aim of this study was to develop a real-time dynamic simulator of a power grid with power plant and battery model. The simulator was used to investigate the frequency control characteristics of a megawatt-scale high-capacity energy storage system connected to the electric power grid. In this study, a lithium-ion secondary battery was chosen as one of the batteries for a grid-connected model. The dynamics of the model was analysed in both steady and transient states. The frequency control system of the battery model plays a role in regulating the grid frequency by controlling the power of energy storage systems according to process variables and grid frequencies. The power grid model based on the current power network of South Korea, included power plants, substations and power demands. The power supply is classified by the type of turbine generator as thermal, nuclear, hydro power, pumped power storage, combined power plants and batteries, including high-capacity energy storage systems rated for a maximum of 500 MW. This study deals with an installed capacity of 87.17 GW and peak load of 77.30 GW in the Korean power grid. For 24 hours of operation, the maximum and minimum power outputs were simulated as 61.59 GW and 46.32 GW, respectively. The commercialized real-time dynamic simulation software ProTRAX was used. The simulation was conducted to observe the operation characteristics of the frequency control system during a breakdown of power plants, as well as under governor-free operation, auto generation control operation, and with the battery energy storage system connected. The results show that the model is valid for each power plant breakdown simulation. They also confirm that the output power and frequency controls of the battery operated well during simulations.