摘要
轻型高压直流输电是基于脉宽调制电压源型换流器的新一代直流输电,具有功率控制灵活、可向有源和无源网络输电、产生的谐波含量小等优点。建立了基于同步旋转坐标系下的轻型高压直流输电系统的动态模型,采用反馈线性化方法设计了非线性解耦控制器,实现输送有功、无功功率的独立控制。应用电磁暂态仿真软件PSCAD/EMTDC对轻型直流输电系统的功率调节控制原理进行了仿真分析,对模型和控制器的有效性进行了多角度验证。
HVDC light is a new generatioa of HVDC power transmission based on PWM controlled voltage source converter （VSC） and possesses following advantages; flexible power control, capability of transmitting power to active and passive network as well as lower harmonics amount, etc. The authors establish a dynamic model of HVDC light system under synchronous rotating coordinate system, design a nonlinear decouple controller and realize individual control for active and reactive power transmission. By means of electromagnetic simulation software PSCAD/EMTDC, the principle of power control is analyzed, and the effectiveness of the established model and designed controller are validated in different standpoints.
出处
《电网技术》
EI
CSCD
北大核心
2007年第6期45-50,共6页
Power System Technology
