电力系统自动化2025，Vol.49Issue(12)：153-161,9.DOI:10.7500/AEPS20240807002
基于分布式调相机的电压支撑型新能源场站构建方案
Construction Scheme of Voltage-supporting Renewable Energy Station Based on Distributed Synchronous Condensers—Part Two Coordinated Control Strategy and Test Verification
摘要
Abstract
Deploying the distributed synchronous condenser in the renewable energy station is an effective measure to improve the voltage-supporting ability on the power supply side.However,the existing cascade strategy of"reactive power outer loop+voltage inner loop"is adopted to integrate the synchronous condenser into the automatic voltage control(AVC)of the station,which limits the low-frequency voltage source characteristics of the synchronous condenser.First,this paper describes the existing problems of the synchronous condenser integrated into AVC and proposes the constant voltage requirement for the synchronous condenser throughout the whole process.Based on the topology of the renewable energy station with distributed synchronous condensers,the reactive voltage conversion coefficient and the reactive power shunt influence factor are analyzed.Then,this paper proposes a new scheme of"constant voltage+reactive power shunt suppression"for integrating the synchronous condenser into AVC.The effectiveness of the proposed scheme is verified by the hardware-in-the-loop simulation of the dual controllers of synchronous condenser excitation and AVC at the station.Finally,the engineering application has been realized in an actual renewable energy station.The field operation results show that the proposed scheme realizes the steady-state regulation of multi-type reactive power devices of the station,effectively reduces the voltage fluctuation amplitude at the grid-connection point of the station,fully utilizes the voltage source characteristics of the synchronous condenser in the whole process,and guarantees the voltage stability margin of the system.关键词
新能源场站/分布式调相机/电压源/励磁调节器/自动电压控制/协调控制Key words
renewable energy station/distributed synchronous condenser/voltage source/excitation regulator/automatic voltage control(AVC)/coordinated control引用本文复制引用
梁浩,秦川,谢欢,梁倍华,吴涛,王宣元,吴龙..基于分布式调相机的电压支撑型新能源场站构建方案[J].电力系统自动化,2025,49(12):153-161,9.基金项目
国网冀北电力有限公司科技项目:"含新型同步调相机的构网型新能源场站协调控制技术研究"(B3018K240005). This work is supported by State Grid Jibei Electric Power Co.,Ltd.(No.B3018K240005). （B3018K240005）
