Capacitive Harmonic Analysis and DSTATCOM-Based Comprehensive Power Quality Management in Metro Substations

被引:0
作者
Guo, Peiqian [1 ]
Yuan, Zhichang [1 ]
Tian, Zhongbei [2 ]
Zhang, Xiao-Yu [3 ]
Yin, Congqi [4 ]
Liu, Wei [1 ,5 ]
Jiang, Zhilin [1 ]
Xiang, Miaoyi [1 ]
He, Ningyi [1 ]
Zhao, Yuming [6 ]
Fan, Lijuan [6 ]
Liu, Guowei [6 ]
机构
[1] Tsinghua Univ, Dept Elect Engn, Beijing 100083, Peoples R China
[2] Univ Birmingham, Dept Elect Elect & Syst Engn, Birmingham B15 2TT, England
[3] Anhui Univ, Sch Artificial Intelligence, Hefei 230601, Peoples R China
[4] State Grid Econ & Technol Res Inst Co Ltd, Beijing 102209, Peoples R China
[5] State Grid Corp China, Natl Elect Power Dispatching & Control Ctr, Beijing 100031, Peoples R China
[6] Shenzhen Power Supply Co Ltd, China Southern Power Grid, Shenzhen 518028, Peoples R China
来源
IEEE TRANSACTIONS ON TRANSPORTATION ELECTRIFICATION | 2025年 / 11卷 / 01期
关键词
Harmonic analysis; Substations; Reactive power; Transformers; Power quality; Impedance; Power harmonic filters; Capacitive harmonic; distribution static synchronous compensation (DSTATCOM); harmonic impedance restructuration; harmonic mitigation; metro substation; multisystem resonance; power factor correction (PFC); power quality; reactive power compensation; FILTER;
D O I
10.1109/TTE.2024.3396406
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Urban railway transit power supply system (URTPSS) involves power quality problems related to reactive power and harmonics. In addition to this, it is susceptible to multisystem resonance at specific frequencies. Negative impedance caused by capacitive characteristics carries the risk of harmonic amplification, which may lead to equipment damage and instability within the metro substation system. This article analyzes the monitored profile of the real-world "SHL" metro substation and identifies the capacitive harmonics of the 35 kV ac bus. A theoretical analysis is performed, and a dynamic model of a metro traction step-down substation (MTSDS) is developed to study capacitive harmonics and their potential causes, and to analyze the network impedance across multiple frequencies. Following that, a distribution static synchronous compensation (DSTATCOM) solution is proposed, featuring a 35 kV-10 MVar power stage configuration and its associated controller design. The improved instantaneous power controller uses the inner $\alpha $ -coordinate current loop to suppress harmonic magnitudes and reconstruct the capacitive impedance. The $\beta $ -coordinate current is used to regulate reactive power demand and correct the system power factor. Simulation results performed in the PSCAD/EMTDC and RSCAD/RTDS environments validate the effectiveness of the DSTATCOM solution with the improved controller under steady-state and load-changing operating conditions.
引用
收藏
页码:774 / 786
页数:13
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