中国电机工程学报2024，Vol.44Issue(19)：7671-7683,中插15,14.DOI:10.13334/j.0258-8013.pcsee.230429
变无功电流比例系数的直驱风电并网系统电压连续穿越控制策略
Continuous Voltage Ride Through Segmentation Control Strategy for PMSG-based Wind Power Integrated Systems With Dynamic Reactive Current Scale Factor
摘要
Abstract
The renewable energy grid code stipulates that wind power integrated system should have the capability of continuous voltage ride through,but existing fault ride through control strategies mainly keep the reactive current scale factors as fixed values and lack a basis for a quantitative description of the reactive current scale factor,which leads to problems such as voltage continuity faults and converter over-modulation.To solve this problem,this paper proposes a voltage continuous ride through control strategy with dynamic reactive current scale factor.This strategy divides the fault voltage interval based on the active current magnitude and the cut-in time of the reactive power compensation device.Dynamic reactive current scaling factors of wind farms under different fault voltages is also calculated in real time,according to the requirements of the grid code,converter overcurrent limit,over modulation,operating conditions of the wind turbine before the fault and subsequent voltage continuity faults and other constraints.The strategy can maximize the voltage active support capability of the wind power integrated system while satisfying the constraints,and ensure safe and stable operation of the wind power integrated system during voltage continuity faults.Finally,a simulation model is built in the PSCAD/EMTDC software platform to verify the correctness of the above analysis.关键词
直驱式风电并网系统/电压连续穿越/动态电流无功比例系数/自适应无功功率调节Key words
PMSG-based wind power integrated systems/continuous voltage ride through/dynamic reactive current scale factor/adaptive reactive power adjustment分类
信息技术与安全科学引用本文复制引用
田书新,陈武晖,王盼盼,陈鸿琳,迟永宁..变无功电流比例系数的直驱风电并网系统电压连续穿越控制策略[J].中国电机工程学报,2024,44(19):7671-7683,中插15,14.基金项目
新疆维吾尔自治区重大科技专项(2022A01007-1) （2022A01007-1）
南方电网有限公司科技项目(037700KK52190012(GDKJXM20198282)). Project Supported by Major Science and Technology Projects in Xinjiang Uygur Autonomous Region(2022A01007-1) （037700KK52190012(GDKJXM20198282）
Science and Technology Project of China Southern Power Grid Corporation(037700KK52190012(GDKJXM20198282)). （037700KK52190012(GDKJXM20198282）
