通过无源输配电网连接的变流器主导电力系统的通用建模和控制框架

IF 6.9 2区 工程技术 Q2 ENERGY & FUELS CSEE Journal of Power and Energy Systems Pub Date : 2023-12-28 DOI:10.17775/CSEEJPES.2023.06400
Qing-Chang Zhong;Marcio Stefanello
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引用次数: 0

摘要

本文采用端口-哈密顿(pH)系统理论和基本电路理论,针对以电力转换器为主、通过无源输配电网互联的通用电力系统,提出了结构优雅的紧凑型数学模型和通用控制框架。首先建立了一般输配电线路的模型,然后建立了一般输配电网的模型。利用所提出的控制框架,受控变流器被证明是无源和输入到状态稳定(ISS)的。该紧凑型数学模型具有可扩展性,可应用于带有通用无源控制器的多个电力电子变流器、无源本地负载以及以无自环网状配置连接的不同类型无源输配电线路的电力系统,因此具有很强的通用性。此外,由此产生的电力系统也被证明是 ISS。除了所有相关部分都需要无源之外,分析中没有假设恒定频率/电压、恒定负载和/或无损网络,也没有使用克拉克/帕克变换或图形理论。为简化表述,本文采用了三相平衡系统,但其结果可轻松适用于单相或不平衡的三相系统。
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Generic Modeling and Control Framework for Power Systems Dominated by Power Converters Connected Through a Passive Transmission and Distribution Grid
In this paper, a compact mathematical model having an elegant structure, together with a generic control framework, are proposed for generic power systems dominated by power converters that are interconnected through a passive transmission and distribution (T&D) grid, by adopting the port-Hamiltonian (pH) systems theory and the fundamental circuit theory. The models of generic T&D lines are developed and then the model of a generic T&D grid is established. With the proposed control framework, the controlled converters are proven to be passive and Input-to-State Stable (ISS). The compact mathematical model is scalable and can be applied to power systems with multiple power electronic converters with generic passive controllers, passive local loads, and different types of passive T&D lines connected in a meshed configuration without self-loops, so it is very generic. Moreover, the resulting power system is proven to be ISS as well. The analysis is carried out without assumptions on constant frequency/voltage, constant loads, and/or lossless networks, except the need of passivity for all parts involved, and without using the Clarke/Park transformations or the graph theory. To simplify the presentation, three-phase balanced systems are adopted but the results can be easily adapted for single-phase or unbalanced three-phase systems.
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来源期刊
CiteScore
11.80
自引率
12.70%
发文量
389
审稿时长
26 weeks
期刊介绍: The CSEE Journal of Power and Energy Systems (JPES) is an international bimonthly journal published by the Chinese Society for Electrical Engineering (CSEE) in collaboration with CEPRI (China Electric Power Research Institute) and IEEE (The Institute of Electrical and Electronics Engineers) Inc. Indexed by SCI, Scopus, INSPEC, CSAD (Chinese Science Abstracts Database), DOAJ, and ProQuest, it serves as a platform for reporting cutting-edge theories, methods, technologies, and applications shaping the development of power systems in energy transition. The journal offers authors an international platform to enhance the reach and impact of their contributions.
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