可再生能源和高压直流供电系统的开源短路电流求解器

IF 5 2区 工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC
Jian Wang , Changgang Li , Junjun Yang , Hang Qi , Wen Hua , Wei Dong , Lin Ye , Vladimir Terzija
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引用次数: 0

摘要

可再生能源(RES)与高压直流(HVDC)线路的大规模集成显著改变了电力系统的短路电流(SCC)水平。对于以同步发电机为主的系统,传统的SCC求解方法已不再适用。本文提供了一个基于电力系统仿真工具包(STEPS)的开源SCC求解器。它支持具有RES和HVDC的电力系统的SCC分析,并允许对新兴RES和HVDC控制模型进行定制扩展。在求解器中,建立了RES和HVDC的序列模型,以支持对SCC特征变化的研究。为了加快不同故障位置等效阻抗的计算速度,提出了一种无需在故障位置增加新母线的等效阻抗计算方法。求解器提供迭代SCC计算和直接求解功能,并具有一系列附加功能。灵活的选项提供和配置,以应付不同的计算场景。并与PSS/E算法进行了精度比较。同时,给出了考虑RES和HVDC链路的数值算例,验证了求解器的实用性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Open-source short-circuit current solver for power systems with renewable energy sources and HVDC links
Large-scale integration of renewable energy sources (RES) and high voltage direct current (HVDC) links have changed the power system short-circuit current (SCC) level significantly. Traditional SCC solvers for systems dominated by synchronous generators are no longer applicable. This paper provides an open-source SCC solver based on Simulation Toolkit for Electrical Power Systems (STEPS). It supports SCC analysis for power systems with RES and HVDC and allows customized extensions for emerging RES and HVDC control models. In the solver, the sequence models are created for RES and HVDC to support the research on changes in SCC characteristics. To speed up the calculation of equivalent impedance for different fault locations, a new method without adding new bus at the fault location is proposed. The solver provides iterative SCC calculation and direct solving functionality with a range of additional features. Flexible options are provided and configurable to cope with different calculation scenarios. The accuracy of the SCC solver is compared with PSS/E. Meanwhile, numerical examples considering RES and HVDC links are provided to demonstrate the practicality of the solver.
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来源期刊
International Journal of Electrical Power & Energy Systems
International Journal of Electrical Power & Energy Systems 工程技术-工程:电子与电气
CiteScore
12.10
自引率
17.30%
发文量
1022
审稿时长
51 days
期刊介绍: The journal covers theoretical developments in electrical power and energy systems and their applications. The coverage embraces: generation and network planning; reliability; long and short term operation; expert systems; neural networks; object oriented systems; system control centres; database and information systems; stock and parameter estimation; system security and adequacy; network theory, modelling and computation; small and large system dynamics; dynamic model identification; on-line control including load and switching control; protection; distribution systems; energy economics; impact of non-conventional systems; and man-machine interfaces. As well as original research papers, the journal publishes short contributions, book reviews and conference reports. All papers are peer-reviewed by at least two referees.
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