Scholarlink

<p>Active power and DC voltage regulation is the key control challenge in a voltage source converter based multi-terminal high voltage direct current system (VSC-MTDC), particularly when integrating renewable energy sources. In such a system, the droop control may result in VSC overloading, leading to unequal power distribution and DC voltage instability following a major disturbance. To enhance the control performance, this paper presents an adaptive droop control technique based on the headroom of VSC (HR-ADC). The designed approach uses the headroom of rectifying and inverting converters to adaptively adjust values of droop coefficient, thereby avoiding converter overloading when significant power interruptions occur. The planned strategy is adopted for the rectifying and inverting converters. To validate its effectiveness, the HR-ADC is compared with the variable droop control using the four terminal ± 400 kV MTDC transmission system in PSCAD. Simulation results demonstrate that the designed HR-ADC is autonomous and resilient, ensuring stable system operation even during significant disturbances such as converter outage or fault conditions in the MTDC grids.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Headroom based adaptive droop control for regulating DC voltage and active power in MTDC grid with integrated renewable energy

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年2月7日

查看全文
  • Zi-Hong Jiang,
  • Asif Raza,
  • Yi-Die Ye,
  • Muhammad Punhal Sahto,
  • Ghalib Raza,
  • Malik Haris,
  • Muhammad Shahid Mastoi,
  • Mannan Hassan

摘要

Active power and DC voltage regulation is the key control challenge in a voltage source converter based multi-terminal high voltage direct current system (VSC-MTDC), particularly when integrating renewable energy sources. In such a system, the droop control may result in VSC overloading, leading to unequal power distribution and DC voltage instability following a major disturbance. To enhance the control performance, this paper presents an adaptive droop control technique based on the headroom of VSC (HR-ADC). The designed approach uses the headroom of rectifying and inverting converters to adaptively adjust values of droop coefficient, thereby avoiding converter overloading when significant power interruptions occur. The planned strategy is adopted for the rectifying and inverting converters. To validate its effectiveness, the HR-ADC is compared with the variable droop control using the four terminal ± 400 kV MTDC transmission system in PSCAD. Simulation results demonstrate that the designed HR-ADC is autonomous and resilient, ensuring stable system operation even during significant disturbances such as converter outage or fault conditions in the MTDC grids.