现代电子技术
現代電子技術
현대전자기술
MODERN ELECTRONICS TECHNIQUE
2015年
8期
120-123
,共4页
PFC技术%FPGA数字控制%交错并联电路%开关电源
PFC技術%FPGA數字控製%交錯併聯電路%開關電源
PFC기술%FPGA수자공제%교착병련전로%개관전원
PFC technology%FPGA digital control%staggered parallel circuit%switching power supply
随着电力设备的功率等级不断提高,使得传统Boost PFC变换器存在较大的输入纹波、转换效率较低等缺点。因此,这里将交错并联拓扑结构引入到Boost PFC变换器中,在平均电流控制策略的基础上建立离散化数字控制模型,选择现场可编程逻辑门阵列(FPGA)控制器来实现交错并联Boost PFC电路的数字控制。仿真结果表明,该设计有效优化了电源的性能,使得电源中的谐波电流含量减少,大大提高了开关电源的功率因数。
隨著電力設備的功率等級不斷提高,使得傳統Boost PFC變換器存在較大的輸入紋波、轉換效率較低等缺點。因此,這裏將交錯併聯拓撲結構引入到Boost PFC變換器中,在平均電流控製策略的基礎上建立離散化數字控製模型,選擇現場可編程邏輯門陣列(FPGA)控製器來實現交錯併聯Boost PFC電路的數字控製。倣真結果錶明,該設計有效優化瞭電源的性能,使得電源中的諧波電流含量減少,大大提高瞭開關電源的功率因數。
수착전력설비적공솔등급불단제고,사득전통Boost PFC변환기존재교대적수입문파、전환효솔교저등결점。인차,저리장교착병련탁복결구인입도Boost PFC변환기중,재평균전류공제책략적기출상건립리산화수자공제모형,선택현장가편정라집문진렬(FPGA)공제기래실현교착병련Boost PFC전로적수자공제。방진결과표명,해설계유효우화료전원적성능,사득전원중적해파전류함량감소,대대제고료개관전원적공솔인수。
The continuous rise of the power level of the power equipments makes the traditional Boost PFC convertor ap?pear the disadvantages of bigger input ripple wave and low conversion efficiency. Therefore,in this paper,the staggered parallel circuit topology is introduced into Boost PFC converter,and the discretization digital control model is built on the basis of the average current control strategy. The FPGA controller was selected to realize digital control of the Boost PFC circuit. The experi?mental results show that the design can optimize the performance of the power supply effectively,reduce the power harmonic pol?lution and improve the power factor of switching power supply.