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并網(wǎng)逆變器分裂電容型LCL濾波器參數(shù)優(yōu)化設(shè)計(jì)

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并網(wǎng)逆變器分裂電容型LCL濾波器參數(shù)優(yōu)化設(shè)計(jì)

殷嘉杰1,鐘建偉1,譚愛(ài)國(guó)1,鄭建鄂2,穆世學(xué)2
(1 湖北民族大學(xué) 智能科學(xué)與工程學(xué)院,湖北 恩施 445000;
2 國(guó)網(wǎng)湖北省電力有限公司恩施供電公司,湖北 恩施 445000)
 
    摘 要:現(xiàn)有并網(wǎng)系統(tǒng)中傳統(tǒng) LCL 濾波器有效解決了電流諧振問(wèn)題,而分裂電容型 LCL 濾波器則進(jìn)一步降低了阻尼電阻的功率損耗。針對(duì)分裂電容型 LCL 濾波器的參數(shù)配置繁瑣、計(jì)算密集、準(zhǔn)確性低等問(wèn)題,提出一種基于 NSGA Ⅲ 多目標(biāo)優(yōu)化算法來(lái)設(shè)計(jì)濾波器的參數(shù),并給出了濾波器參數(shù)尋優(yōu)的實(shí)現(xiàn)流程。仿真結(jié)果表明,該方法不僅改善了濾波性能和系統(tǒng)穩(wěn)定性,還降低了功率損耗,大大降低了設(shè)計(jì)過(guò)程對(duì)經(jīng)驗(yàn)的依賴(lài),濾波器參數(shù)設(shè)計(jì)更加具有普適性。
    關(guān)鍵詞: LCL 濾波器;分裂電容;NSGA Ⅲ多目標(biāo)優(yōu)化算法;參數(shù)設(shè)計(jì);功率損耗
    中圖分類(lèi)號(hào):TM464     文獻(xiàn)標(biāo)識(shí)碼:A     文章編號(hào):1007-3175(2024)06-0010-08
 
Parameter Optimization Design of Split-Capacitor
LCL Filter for Grid-Connected Inverter
 
YIN Jia-jie1, ZHONG Jian-wei1, TAN Ai-guo1, ZHENG Jian-e2, MU Shi-xue2
(1 College of Intelligent Systems Science and Engineering, Hubei Minzu University, Enshi 445000, China;
2 State Grid Hubei Electric Power Co., Ltd. Enshi Power Supply Company, Enshi 445000, China)
 
    Abstract: In existing grid-connected systems, traditional LCL filters effectively solve the problem of current resonance, while split-capacitor LCL filters further reduce power loss in damping resistors. Aim at the problems that split-capacitor LCL filters exists complex parameter configuration, computational intensity and low accuracy associated. In this paper, a filter parameter design approach based on the NSGA III multi-objective optimization algorithm is proposed, and the realization flow of filter parameter optimization is also given. The simulation results indicate that the method not only improves filtering performance and system stability but also reduces power loss, greatly reduces the dependence on experience in the design process, and the filter parameter design is more universal.
    Key words: LCL filter; split-capacitor; NSGA III multi-objective optimization algorithm; parameter design; power loss
 
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