| 三相电压型PWM整流器直接功率控制 |
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| 引用本文： | 王宇野,徐新林.三相电压型PWM整流器直接功率控制[J].应用科技,2012(3):66-70. |
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| 作者姓名： | 王宇野 徐新林 |
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| 作者单位： | 哈尔滨工程大学信息与通信工程学院,黑龙江哈尔滨150001 |
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| 基金项目： | 黑龙江省博士后基金资助项目(LBH-Q09153) |
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| 摘 要： | 为了克服电压定向和虚拟磁链定向直接功率控制技术的缺点,采用了基于输出调整子空间的直接功率控制(ORS-DPC)技术,对三相电压型PWM整流器进行仿真研究.分析了ORS-DPC技术的系统结构和原理,并对输入电压扇区重新进行了划分,给出相应的开关表,使系统性能进一步提高.最后利用Matlab/Simulink进行了仿真,验证了扇区划分改进后系统性能的优越性.研究和分析表明,改进后的ORS-DPC技术保证了对输出电压的良好控制,并且功率因数接近于1.
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| 关 键 词： | PWM整流器 直接功率控制 输出调整子空间 扇区 功率因数 |
Three-phase boost type PWM rectifiers with a direct power control strategy |
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| WANG Yuye,XU Xinlin.Three-phase boost type PWM rectifiers with a direct power control strategy[J].Applied Science and Technology,2012(3):66-70. |
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| Authors: | WANG Yuye XU Xinlin |
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| Institution: | College of Information and Communication Engineering,Harbin Engineering University,Harbin 150001,China |
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| Abstract: | In order to overcome the shortcomings of the voltage-oriented and virtual flux-oriented direct power control strategy,a direct power control strategy based on output regulation subspaces(ORS-DPC) is utilized to study the three-phase boost type PWM rectifiers.The structure and principle of ORS-DPC system were analyzed,the system performance was improved by the re-division of input voltage sectors,and the corresponding switching table was given.Then ORS-DPC system was researched by a simulation model based on Matlab/Simulink,and the simulation results verified a high performance when the input voltage sector was divided again.Research and analysis show that the improved ORS-DPC ensures a good control of output voltage and the power factor is close to 1. |
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| Keywords: | PWM rectifier direct power control output regulation subspaces sectors power factor |
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