基于直接功率控制的三相整流器的研究
Research of Three-phase Rectifier Based on Direct Power Control
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摘要: 直接功率控制是继矢量控制、直接转矩控制之后出现的又一种新型的控制策略,具有较多的优越性能。文章介绍了直接功率控制技术的发展,阐述了基于直接功率控制的三相整流器的原理及数学模型,并给出了各个模块的实现方法。仿真结果表明,基于直接功率控制的三相整流器输出电压稳定,直流侧输入电流、电压相位差较小,功率因数高,谐波含量少,达到了预期效果。Abstract: The direct power control is a new type of control strategy coming after the vector control and the direct torque control and has some superior performances.The paper introduced development of direct power control technology,expounded the principle of three-phase rectifier based on direct power control and its mathematical model,as well as gave implementation method of each module.The simulation result showed that the three-phase rectifier based on direct power control had advantages such as stable output(voltage,) small phase difference of input current and voltage on the side of DC,high power factor and little harmonic wave,which received expectation effect.