Analysis of Deloaded Wind Power in Hybrid AC/HVDC Systems by Frequency Stability Constrained Optimal Power Flow

This paper investigates the relationship between frequency support by voltage-source converter based high-voltage direct current (VSC-HVDC) systems and deloaded wind power operation considering stability constraints. The is incorporated as additional constraints in optimal flow (OPF) analysis. reserve capacity of plants should be provided for support, which requires output suppression during steady-state. On contrary, this curtailment unnecessary if can satisfied fast controller VSC-HVDC system. deload ratio determined OPF calculation. A hybrid AC/VSC-HVDC system model designed on IEEE 39-bus inertia emulation control (IEC) method applied to slack primary support. Sensitivity analysis constraints, capacities HVDC are carried out. It validated that reduce suppression.