Variable Frequency Tuning Technology of Half-wavelength AC Transmission Based on MMC

ZHOU Pan; WANG Dayang; DAI Chaobo; JING Ping; ZHAO Chengyong; JI Yucong

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Variable Frequency Tuning Technology of Half-wavelength AC Transmission Based on MMC

更新时间：2025-12-08

- Variable Frequency Tuning Technology of Half-wavelength AC Transmission Based on MMC
- Vol. 44, Issue 1, Pages: 99-105(2018)
- 作者机构：
  
  1. 华北电力大学电气与电子工程学院
  2. 国网江苏省电力有限公司信息通信分公司
  3. 全球能源互联网研究院先进输电技术国家重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：31 January 2018，
  
  Published：2018
- 稿件说明：
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ZHOU Pan, WANG Dayang, DAI Chaobo, et al. Variable Frequency Tuning Technology of Half-wavelength AC Transmission Based on MMC[J]. 2018, 44(1): 99-105.
DOI：

ZHOU Pan, WANG Dayang, DAI Chaobo, et al. Variable Frequency Tuning Technology of Half-wavelength AC Transmission Based on MMC[J]. 2018, 44(1): 99-105. DOI：

摘要

为解决半波长输电线路的调谐问题

提出基于模块化多电平换流器（MMC）的变频柔性调谐装置来获得不同的运行频率

使得输电线路具有半波长交流输电的特性。在PSCAD/EMTDC中建立了变频调谐等值系统模型并设计了柔性调谐装置的控制策略。在全球能源互联网的背景下

提出基于变频调谐技术的半波长交流输电在洲际间应用的初步方案

并对特定的情景进行了算例分析。仿真结果证明了基于MMC的变频调谐方法可以将长度为6 000 km的输电线路调谐成运行频率为24.484 Hz半波长线路

且可以实现补偿交流系统功率因数的功能。与传统调谐方法相比

提出的变频调谐方法性能更优

尤其适用于超远距离输电线路的调谐

为解决半波长输电线路的调谐问题提供了新的备选方案。

Abstract

To deal with the tuning problem of the half-wavelength AC transmission line（HWACT）

we proposed a flexible frequency tuning device based on modular multi-level converter（MMC） to obtain different operating frequency so that the transmission line possessed the characteristics of half-wavelength.Moreover

we established an equivalent tuning system model by using PSCAD/EMTDC and designed a control strategy of the flexible tuning device.Under the background of global energy interconnection（GEI）

we put forward the fundamental scheme of half-wavelength AC transmission with variable frequency turning technology for transcontinental grid connection

and verified through simulation of a specific case.The simulation results show that the MMC-based flexible frequency tuning method can tune a transmission line with a length of 6 000 km to a half-wavelength line with an operating frequency of 24.484 Hz

and can realize the additional function of power factor compensation.The flexible frequency tuning method described in this paper shows better performances compared with the traditional tuning method

and is especially useful for the ultra long distance transmission line.It provides a novel alternative to solve the tuning problem of the half-wavelength transmission line.

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