基于LQR優(yōu)化控制的電動汽車高頻交流諧振逆變電源研究

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中圖分類號：TM464 文獻(xiàn)標(biāo)志碼：A DOI： 10.20104/j.cnki.1674-6546.20250015

Research on EV HFAC Resonant Inverter Power Supply Based on LQR Optimization Control

ZhouHao3，ZengJingyao2，Wu Jun1 （1.Zhuzhou CRRC Times Electric Co.，Ltd.，Zhuzhou41200l; 2.Schoolof Electric Power，South China Universityof Technology，Guangzhou510640; 3.Shien-ming Wu ScholofIntellgentEngineering，South China Universityof Technology， Guangzhou 511442）

【Abstract]Inorder to addressthe issues ofcomplex control strategy design and hardware circuit implementationof High Frequency AC （HFAC）resonant inverter powersupplyin Electric Vehicle（EV），thispaper proposesacompositecontrol strategybasedonthecombinationofanintegralcontrollerandstatefeedback.TakingthetypicalLCLCDC-HFAC inverteras theresearchobject，theLinearQuadraticRegulator（LQR）optimizationcontroltheoryisusedtorealizetheoflinedigital calculationof thefeedback controlparameters inthecompositecontrol strategy，which improves thedynamicperformanceof the DC/HFAC inverterand enhances the stabilityof the DC-HFAC inverterpowersupply.Thecontrol strategyand hardware circuit designareoptimized bysimplifying theparameterdesign processof thecontrolerandthePhase-Shift Modulation （PSM） method.The experimental results show that the proposed LCLC DC-HFAC inverter power supply based on LQR optimized fedback compositecontrol strategynotonly hasgood steady-state performance，butalsohashigh conversion efficiency and superior dynamic response speed.

Keywords：Electric vehicle，DC/HFAC inverter，Composite control strategy，LinearQuadratic Regulator （LQR）， Optimization control theory

【引用格式】周浩，曾婧瑤，吳軍.基于LQR優(yōu)化控制的電動汽車高頻交流諧振逆變電源研究[J].汽車工程師，2025（7）： 10-17.ZHOU H，ZENG JY， WU J. Research on EV HFAC Resonant Inverter Power Supply Based on LQR OptimizationControl[J]. AutomotiveEngineer，2025（7）：10-17.

1前言

高頻諧振逆變器具有高功率密度、低電磁干擾（ElectromagneticInterference，EMI）及高轉(zhuǎn)換效率等優(yōu)點-10]，在過去幾十年中，其衍生的高頻交流配電系統(tǒng)（High-Frequency Alternating Current PowerDistributionSystem，HFACPDS）方案廣泛應(yīng)用于電信、微電網(wǎng)[2-3]和電動汽車[4-6]。（剩余10748字）