| 引用本文: | 关红兵,黄立滨,周鹏鹏,等.基于RTDS的高压直流控制系统锁相环仿真研究[J].电力系统保护与控制,2017,45(12):128-132. |
| GUAN Hongbing,HUANG Libin,ZHOU Pengpeng,et al.Application of improved PLL for HVDC transmission system based on RTDS[J].Power System Protection and Control,2017,45(12):128-132 |
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| 摘要: |
| 在基于实时数字仿真器(Real-time digital simulator, RTDS)所建立的特高压直流输电系统实时仿真平台中，常规锁相环技术无法实现换流阀触发脉冲的精确控制，不利于实际直流工程的故障重现。基于系统正序分量的瞬时锁相环控制原理，提出了一种高精度锁相环的建模方法，实现了电网系统频率的高精确跟踪测量。在RTDS仿真平台上搭建完整的云广特高压直流工程的控制系统仿真模型，并结合实际工程的运行工况设计仿真试验算例。试验结果表明，仿真波形与实际工程的录波取得了高度一致性，该仿真建模方法是有效可行的。 |
| 关键词: 频率跟踪 正序锁相 RTDS 高压直流控制系统 |
| DOI：10.7667/PSPC162005 |
| 分类号: |
| 基金项目:南方电网公司科技项目(K153031) |
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| Application of improved PLL for HVDC transmission system based on RTDS |
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GUAN Hongbing1,HUANG Libin1,ZHOU Pengpeng2,ZHANG Yanbing2
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(1. Electric Power Research Institute, Key Laboratory of Power System Simulation, CSG, Guangzhou 510080, China;2. Xuchang KETOP Testing Technology Co., Ltd., Xuchang 461000, China)
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| Abstract: |
| For the HVDC transmission system built in the real time simulation platform based on RTDS, the conventional PLL technology can not realize the precise control of the trigger pulse of the converter valve, which is not conducive to the fault reconstruction of the actual HVDC project. Based on the principle of the instantaneous PLL control system, a high precision PLL modeling method is proposed, and high precision tracking measurement of power system frequency is realized. According to the actual operating conditions, the complete simulation model of the control system for Yun-Guang UHVDC Project is built based on the RTDS simulation platform and the simulation test example is designed. The experimental results show that the simulation waveform is highly consistent with the actual engineering records, and the simulation modeling method is effective and feasible. |
| Key words: frequency tracking positive-sequence PLL RTDS HVDC |
