A Hybrid Complementary Optimization Scheme of Wind- Solar- Pumped Storage Integrated by Voltage Source Converter Multi-terminal DC

Abstract

A hybrid complementary optimization scheme of wind-solar-pumped storage integrated by voltage source converter multi-terminal DC(VSC-MTDC) is proposed, which considered power system stability control and actual generation schedule of pumped storage units. The goal anticipation is based on the minimum power flow and minimum frequency difference on tie line between voltage source converter multi-terminal DC(VSC-MTDC) and AC power system, improves the stability of voltage source converter multi-terminal DC(VSC-MTDC) and decrease renewable energy fluctuation’s impact on AC power system. Simulation example shows that this method can reduce power flow on tie line effectively and improve system stability.