Overvoltage Calculation of Submarine Cable in VSC-HVDC Systems Based on MMC Average Value Model

ZHANG Zhengguo; ZHANG Jian; XUAN Yi; XU Zheng

doi:10.13296/j.1001-1609.hva.2014.02.018

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Overvoltage Calculation of Submarine Cable in VSC-HVDC Systems Based on MMC Average Value Model

更新时间：2025-04-26

- Overvoltage Calculation of Submarine Cable in VSC-HVDC Systems Based on MMC Average Value Model
- High VoltageApparatus Vol. 50, Issue 2, Pages: 99-104(2014)
- 作者机构：
  
  1. 国网浙江省电力公司舟山供电公司
  2. 浙江大学电气工程学院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2014.02.018
  CLC： TM721.1
- Published：2014
- 稿件说明：
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[1]章正国,张健,宣羿,徐政.基于MMC平均值模型的柔性直流输电系统海底电缆故障过电压计算[J].高压电器,2014,50(02):99-104.

ZHANG Zhengguo, ZHANG Jian, XUAN Yi, et al. Overvoltage Calculation of Submarine Cable in VSC-HVDC Systems Based on MMC Average Value Model[J]. High voltageapparatus, 2014, 50(2): 99-104.
[1]章正国,张健,宣羿,徐政.基于MMC平均值模型的柔性直流输电系统海底电缆故障过电压计算[J].高压电器,2014,50(02):99-104. DOI： 10.13296/j.1001-1609.hva.2014.02.018.

ZHANG Zhengguo, ZHANG Jian, XUAN Yi, et al. Overvoltage Calculation of Submarine Cable in VSC-HVDC Systems Based on MMC Average Value Model[J]. High voltageapparatus, 2014, 50(2): 99-104. DOI： 10.13296/j.1001-1609.hva.2014.02.018.

摘要

模块化多电平换流器（modular multilevel converter

MMC）具有调制简单、开关频率低、谐波分量小等优点

在柔性直流输电系统

尤其是跨海域的电能传输中得到了广泛的应用。笔者采用了MMC换流站平均值模型

提出了一种简化的计算海底电缆直流故障时过电压的计算方法

节省了计算量

仿真结果与详细模型十分接近。

Abstract

Modular multilevel converter has the advantage of simple modulation

low switching-frequency and low harmonic components.It has been widely used in VSC-HVDC systems

especially in power transmission across sea.This paper introduces an MMC average value model

and presents a simplified method for calculating the overvoltage of submarine cable during the process of DC faults

which reduces the computational burden.The simulation results show that the average value model has good consistency with that of the detailed model.

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