【摘要】：為使靜止無功發(fā)生器(static var generator,SVG)具備無功、諧波及不對(duì)稱電流的綜合補(bǔ)償能力,對(duì)中高壓鏈?zhǔn)絊VG的控制策略進(jìn)行了研究�；谶x擇性諧波補(bǔ)償策略提出了利用同步旋轉(zhuǎn)坐標(biāo)變換及離散傅里葉變換(discrete fouries transform,DFT)相結(jié)合的SVG指令電流檢測(cè)方法,應(yīng)用載波層疊脈寬調(diào)制(pulse width modulation,PWM)實(shí)現(xiàn)指令電流跟蹤控制,針對(duì)載波層疊PWM方法采用基于逆變橋自身能量平衡原理的軟件方法實(shí)現(xiàn)直流側(cè)電容電壓均衡控制。該控制策略方法簡(jiǎn)便,運(yùn)算量較小,便于工程實(shí)現(xiàn),仿真和實(shí)驗(yàn)驗(yàn)證證明了其有效性。
[Abstract]:In order to make the static Var Generator (static var generator,SVG) have the comprehensive compensation ability of reactive power, harmonic and asymmetrical current, the control strategy of MHV chain SVG is studied. Based on the selective harmonic compensation strategy, a SVG instruction current detection method based on synchronous rotation coordinate transform and discrete Fourier transform (discrete fouries transform,DFT) is proposed. The carrier stacked pulse width modulation (pulse width modulation,) is applied to detect the current. PWM) is used to realize the command current tracking control. For the carrier stacked PWM method, the DC side capacitor voltage equalization control is realized by using the software method based on the energy balance principle of the inverter bridge itself. The control strategy is simple and easy to implement. The simulation and experimental results show that it is effective.
【作者單位】： 中國(guó)礦業(yè)大學(xué)信息與電氣工程學(xué)院;
【基金】：高等學(xué)校博士學(xué)科點(diǎn)專項(xiàng)科研基金(20110095110014)~~
【分類號(hào)】：TM761.12

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本文編號(hào)：2420549