A Novel Interface Algorithm of Power Hardware-in-the-loop Simulation for MMC-HVDC System Based on Adaptive Mode Switching

被引：0
|
作者：
Jiang S. [1 ]
Li G. [1 ]
Xin Y. [1 ]
Wang L. [1 ]
Liu B. [2 ]
机构：
[1] Key Laboratory of Modern Power System Simulation and Control & Renewable Energy Technology, Ministry of Education, Northeast Electric Power University, Jilin, 132012, Jilin Province
[2] State Grid Beijing Urban District Power Supply Branch, Xicheng District, Beijing
来源：
Dianwang Jishu/Power System Technology | 2020年 / 44卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Adaptive mode switching; Power hardware-in-the-loop (PHIL) simulation; Real-time impedance matching; Start-up scheme; Switching criterion;
D O I：
10.13335/j.1000-3673.pst.2018.2844
中图分类号：
学科分类号：
摘要：
Power hardware-in-loop (PHIL) simulation has become an important research measure of modular multilevel converter based high voltage direct current (MMC-HVDC) technology, and interface algorithm is the key technology to ensure system stability and simulation accuracy. Based on comparative analysis of the interface characteristics between ideal transformer model (ITM) method and damping impedance method (DIM), a novel interface algorithm based on adaptive mode switching is proposed to improve simulation accuracy while guaranteeing stability of MMC-HVDC PHIL simulation system. For the DIM, an accurate calculation method for the AC field equivalent impedance of the hardware under test (HUT) is proposed, and the calculation process of the equivalent impedance for MMC AC side is simplified to realize real-time impedance matching. According to the structure principle of the two interface algorithms, a controllable switch is added to the additional impedance branch of the DIM, and the switching conditions of the switch and the solution of maloperation are designed based on interface stability of the ITM. Then, an implementation process of the novel interface algorithm is designed to ensure effective switching of the interface characteristics. The interface characteristics of the novel and common interface algorithms are compared and analyzed with digital simulation, and its superior stability and accuracy performance are verified. Finally, a start-up scheme for the MMC-HVDC PHIL simulation platform is designed, and effectiveness and feasibility of the proposed method are verified with hardware-in-loop experiments. © 2020, Power System Technology Press. All right reserved.
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页码：70 / 78
页数：8
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