A Voltage Stability Analysis Method of Multi-infeed HVDC Power Systems

Shao Yao, Tang Yong, Zhang Jian, Li Baiqing
2014 Journal of International Council on Electrical Engineering  
According to the Chinese power network planning, the risk of voltage instability at the receiving-end AC power system will be increased significantly, where there will be more HVDC systems feeding into a same AC grid in the future. At present, the effective voltage stability analysis methods of multi-infeed DC (MIDC) system are few, the most widely used method with most research results is the multi-infeed short-circuit ratio (MISCR) index at home and abroad. The deficiency of MISCR index is
more » ... nted out. The relationship between multi-infeed interaction factor (MIIF) and the voltage stability of the receiving-end AC system is discussed. Then a new method joint MIIF and MISCR indexes to evaluate the voltage stability of MIDC system is put forward. Finally, simulation tests and analysis results of a large actual grid prove the feasibility and good performance of the proposed new method.
doi:10.5370/jicee.2014.4.1.074 fatcat:niemfe45nzhspba3cvg7fycyoe