A thermal-electric decoupling approach to reduce the wind power tripping rate

With the rapid growth of wind power, due to the limit of the system peak load regulation capability, wind turbines were often tripped to guarantee power system security during heating periods in China´s north provinces. This paper proposes a thermal-electric decoupling scheme for reduction of wind power trippings. In this study, an outside thermal source is introduced to absorb sufficient wind power and to provide heating services. Thus, the heating output of co-generators could be reduced to lower the minimum forced power of co-generators, which further increases the system peak load regulation capability. An approach is proposed to calculate the wind power tripping rate by using Monte Carlo simulation technique. Case studies have been conducted to demonstrate the effectiveness of the proposed methods, and the results show that the proposed approach could relieve the wind power tripping rate and improve the ability of power system to accommodate wind power.