摘要
为避免暂态过程中无惯性、无阻尼的换流站对电网造成冲击,对电压源高压直流输电(俗称"柔性高压直流输电")逆变侧换流站建立虚拟同步发电机(virtual synchronous generator,VSG)控制模型。在分析了同步发电机的功角曲线以及转子惯性、阻尼的物理意义的基础上,利用VSG的转动惯量和阻尼系数具有灵活可调的优势,提出一种转动惯量和阻尼系数协同自适应调节策略,并确定了自适应调节系数的选取原则。最后,在MATLAB/Simulink软件中搭建仿真模型,验证了所提调节策略可行、有效。
In order to avoid impact of the inertialess and undamped inverter on the power grid in transient process, this paper builds a virtual synchronous generator （VSG） control model for VSD-HVDC inverter-side converter station. On the basis of analyzing power angle curve and physical meanings of the rotor inertia and damping of the synchronouadvantage of flexible adjustability of rotary inertia and damping coefficient of VSG to propose a kind of collaborative adap-tive adjusting strategy for rotary inertia and damping cien. Finally, in MATLAB/Simulink software, it establishes this strategy.
出处
《广东电力》
2017年第10期57-62,共6页
Guangdong Electric Power
基金
国家自然科学基金项目(51277029)
关键词
电压源高压直流输电
虚拟同步发电机
转动惯量
阻尼系数
自适应调节
VSC-HVDC
virtual synchronous generator
rotaiand determines selection rules for adaptive adjusting coefs-- simulation model and verifies feasibility and effectiveness ofinertia
damping coefficient
adaptive adjusting
