电源学报
電源學報
전원학보
JOURNAL OF POWER SUPPLY
2012年
6期
116-122
,共7页
王百永%张俊伟%郑华荣%肖华锋%王宝宝
王百永%張俊偉%鄭華榮%肖華鋒%王寶寶
왕백영%장준위%정화영%초화봉%왕보보
LCL滤波器%参数设计%有源阻尼
LCL濾波器%參數設計%有源阻尼
LCL려파기%삼수설계%유원조니
LCL filter%parameter design%active damping
LCL型滤波器对高次谐波电流抑制能力强、体积小、成本低,适合中大功率并网逆变器应用,但滤波器参数多、关系紧密,使得参数选取十分复杂和困难。提出一种兼顾物理意义和部分储能最小优化的LCL滤波器参数设计方法,并将有源阻尼技术对滤波器参数的配置要求作为在满足滤波要求前提下选择滤波器参数的依据。本文详细分析了并网逆变器的谐波特性、设计准则和计算流程,并通过一个具体设计实例,给出在不同有源阻尼策略下LCL滤波器参数配置的建议。
LCL型濾波器對高次諧波電流抑製能力彊、體積小、成本低,適閤中大功率併網逆變器應用,但濾波器參數多、關繫緊密,使得參數選取十分複雜和睏難。提齣一種兼顧物理意義和部分儲能最小優化的LCL濾波器參數設計方法,併將有源阻尼技術對濾波器參數的配置要求作為在滿足濾波要求前提下選擇濾波器參數的依據。本文詳細分析瞭併網逆變器的諧波特性、設計準則和計算流程,併通過一箇具體設計實例,給齣在不同有源阻尼策略下LCL濾波器參數配置的建議。
LCL형려파기대고차해파전류억제능력강、체적소、성본저,괄합중대공솔병망역변기응용,단려파기삼수다、관계긴밀,사득삼수선취십분복잡화곤난。제출일충겸고물리의의화부분저능최소우화적LCL려파기삼수설계방법,병장유원조니기술대려파기삼수적배치요구작위재만족려파요구전제하선택려파기삼수적의거。본문상세분석료병망역변기적해파특성、설계준칙화계산류정,병통과일개구체설계실례,급출재불동유원조니책략하LCL려파기삼수배치적건의。
Characterized with high harmonic current attenuating, low bulk and low cost, the LCL filter is suitable for middle and high power grid-connected inverters. Whereas, the optimization of filter parameters is complicated and difficult due to the multiplicity and coupling of elements. A design method was proposed considering the physical meaning and partial storage energy optimized, and the relationship between the filter parameters and active damping of the resonance was introduced in the parameters selection procedure. The harmonic characteristic, design specifications and calculating procedure were analyzed and listed. Finally, based on an example, the selection results of LCL filter parameters were advised under different active damping strategies.