能源工程2024，Vol.44Issue(6)：76-84,9.DOI:10.16189/j.nygc.2024.06.009
面向深远海风的高压有源电力滤波器双环电流控制策略
Dual-loop current control strategy of high-voltage active power filters for deep and distant offshore wind power
摘要
Abstract
The harmonic pollution issue that may arise during the interaction between deep and distant offshore wind power transmission systems and onshore power grids can affect the safe operation of the systems.High-voltage active power filters(HAPF)represent an efficient means of harmonic mitigation.To achieve stable control of the HHAPF,this paper proposes a dual-loop current control strategy that simultaneously detects both grid current and inverter-side current.Without the need for additional current sensors,the introduction of a first-order high-pass feedback on the inverter-side current achieves resonance peak suppression for the equivalent LCL filter and addresses the issue of LCL low-frequency gain attenuation caused by proportional feedback.Meanwhile,to effectively suppress the injection of harmonic currents from the wind farm into the grid,the current controller adopts a proportional resonant controller,and a controller parameter design method combining root locus and Bode plot is presented.Finally,the proposed dual-loop current control strategy is experimentally validated on a 30kVA scaled-down prototype.The experimental results demonstrate the effectiveness of the aforementioned method.关键词
深远海风电/高压有源电力滤波器/双环电流控制/高通反馈Key words
offshore wind power/sub-synchronous/super-synchronous oscillation/full-condition frequency-domain impedance/stability分类
信息技术与安全科学引用本文复制引用
杨磊,张浙波,王鹏宇,许林波,刘冬,钱坤,傅雨荷,赵慧勉..面向深远海风的高压有源电力滤波器双环电流控制策略[J].能源工程,2024,44(6):76-84,9.基金项目
浙江省自然科学基金资助项目(LY23E070002) （LY23E070002）
