海上风电场MMC HVDC并网系统暂态行为分析

CHEN Helin

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海上风电场MMC HVDC并网系统暂态行为分析

更新时间：2025-08-13

- 海上风电场MMC HVDC并网系统暂态行为分析
- Automation of Electric Power Systems Vol. 38, Issue 12, Pages: 112-118(2014)
- 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：
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- Published：2014
- 稿件说明：
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CHEN Helin. [J]. Automation of electric power systems, 2014, 38(12): 112-118.
DOI：

CHEN Helin. [J]. Automation of electric power systems, 2014, 38(12): 112-118. DOI：

摘要

对于海上风电场模块化多电平换流器型高压直流输电(MMC HVDC)并网系统

提出风电场侧模块化多电平换流器通过双维度单环直接控制风电场集电系统交流电压的方法

有效控制集电系统交流电压并保持稳定。基于PSCAD／EMTDC建立整个海上风电场直流并网系统模型

进行相应仿真研究

针对风速变化、风电场集电系统故障、电网故障以及MMC HVDC直流单极接地故障等几种情况进行暂态分析

并与交流并网系统暂态结果进行比较。研究结果表明

采用所述控制方法的并网MMC HVDC系统在发生相应故障时能够保持稳定运行

验证了海上风电场MMC HVDC并网系统及相应控制方法的正确性和有效性。

Abstract

For offshore wind farm integration system with modular multilevel converter high voltage direct current (MMC HVDC)

the control strategy for the wind farm modular multilevel converter (MMC) to maintain the AC voltage of the wind farm collecting system is presented

which adopts single loop in two dimensions. The detailed offshore wind farm MMC HVDC integration system is established. The model is realized with PSCAD/EMTDC. Simulation and research under different conditions are carried out. Transient behaviors of the whole integration system during wind speed variations

wind farm collecting system fault

grid fault and single pole grounding fault of the MMC HVDC system are studied. The results are compared with the results of a high voltage alternating current (HVAC) integration system. The study reveals that the MMC HVDC system with the control strategies presented can keep stable operation under different faults. The results show that the proposed grid integration system and control strategies are correct and valid.

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