基于分段解析公式的MMC-HVDC阀损耗计算方法

ZHANG Zheren

您当前的位置：

首页 >

文章列表页 >

基于分段解析公式的MMC-HVDC阀损耗计算方法

更新时间：2025-08-13

- 基于分段解析公式的MMC-HVDC阀损耗计算方法
- Automation of Electric Power Systems Vol. 37, Issue 15, Pages: 109-116(2013)
- 作者机构：
  
  浙江大学电气工程学院,浙江省,杭州市,310027
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2013
- 稿件说明：
移动端阅览
ZHANG Zheren. [J]. Automation of electric power systems, 2013, 37(15): 109-116.
DOI：

ZHANG Zheren. [J]. Automation of electric power systems, 2013, 37(15): 109-116. DOI：

摘要

针对基于模块化多电平换流器的高压直流输电系统（MMC-HVDC），提出了一种采用分段解析公式计算换流站阀损耗的方法。首先，通过移除最近电平逼近中的取整函数，将桥臂电压转化成理想的光滑波形，根据桥臂电流过零点时刻，对换流阀通态损耗进行分段解析计算。其次，将开关损耗分为必要开关损耗和附加开关损耗。对于前者，通过引入变化率函数进行分段解析计算;对于后者，给出了估算其大小的方法。随后，给出了使用分段解析公式计算MMC-HVDC阀损耗的详细流程。最后，基于时域仿真软件PSCAD/EMTDC下搭建的300 MW/±150 kV数字仿真模型，验证了所提方法的有效性。

Abstract

Based on the modular multilevel converter high voltage direct current（MMC-HVDC）system，a piecewise analytical formula method for valve loss calculation of converters is proposed.Firstly，the arm voltage is transformed into a smooth waveform after removing the nearest integer function.Under this simplification，the conduction losses can be precisely generalized as piecewise analytical formulas right at the instant the arm current crosses zero.Secondly，the switching losses are divided into two parts:the essential switching losses and the additional switching losses.As a result of the introduction of the changing rate function，the essential switching losses are also generalized as piecewise analytical formulas.For the additional switching losses，a method is adopted to estimate the value.The procedures of the proposed methodology for valve loss evaluation of MMC-HVDC are given.Finally，case studies have been carried out based on a 300 MW/±150 kV MMC-HVDC.The results show that the proposed methodology is efficient and effective.

关键词

Keywords

references

Views

4064

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

新型混合高压直流输电技术在海上风电场并网中的应用

Fast Protection Scheme for Bipolar Face-to-face Modular Multilevel Converter Based DC Transformer

超级电容储能型MMC多工况电磁暂态等值建模方法

State Space Averaging Modeling Method of Full-bridge Modular Multilevel Converter Considering Dead-time Characteristics

Matrix Dimensionality Reduction for Stability Analysis of Modular Multilevel Converters Under Asymmetric Conditions

Related Author

YIN Rui

LIAO Jianquan

HU Chengbin

GAO Shilin

TAN Zipeng

WANG Yuhong

FU Lerong

FENG Moke

Related Institution

College of Electrical Engineering, Zhejiang University

College of Electrical Engineering, Sichuan University

State Key Laboratory of Power Transmission Equipment Technology (Chongqing University)

State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources (North China Electric Power University)

⁰