Research on Analysis Method of Transient Reactive Characteristics of New generation Synchronous Condensers Considering Excitation Regulation Characteristics

摘要

The dynamic reactive power capability of the new-generation synchronous condenser has an important impact on grid voltage control. In particular, under the strong excitation and low excitation condition, the reactive power output characteristics of the new-generation synchronous condenser are very important for the UHV DC dynamic reactive support capability. Based on this, the voltage inner loop and reactive outer loop integrated control system of the new-generation synchronous condenser was established. Then, a simplified control model for voltage inner loop is proposed. The reactive power increment considering the influence of excitation regulation is derived based on the Carson transform. The reactive power output characteristics of the new- generation synchronous condenser considering the influence of the excitation regulation characteristics are obtained. Simulation results prove the correctness of theoretical analysis.