三相电压直流电路PWM变换器的最优控制和适当脉宽调制

Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting Pub Date : 1992-10-04 DOI:10.1109/IAS.1992.244432

R. Marschalko, M. Weinhold

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引用次数: 16

摘要

提出了一种新的控制策略，利用三相电压直流链路脉宽调制(PWM)变换器的所有允许开关操作，使变换器从公用事业或消费者的角度来看具有线路友好性能。对于理想变换器和无畸变供电网络，在稳态条件下功率因数等于1，控制系统的动态特性是充分的。为了用现有的转换器达到这种线路友好性能，并保持低线侧滤波器的支出，需要在高开关频率(>10 kHz)下适当的PWM。介绍了控制策略的原理和适当的PWM控制。在一个绝缘栅双极晶体管(IGBT)变换器上得到的实际结果说明了该控制系统在两个能量流方向上的动态和稳态性能。

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Optimal control and appropriate pulse width modulation for a three-phase voltage DC-link PWM converter

Novel control strategies are presented which use all allowed switching operations of the three-phase voltage DC-link pulse width modulation (PWM) converter such that the converter has a line-friendly performance from the point of view of the utilities or the consumer. In the case of an ideal converter and a distortion-free supply network, the power factor becomes equal to unity under steady-state conditions and the dynamic characteristics of the control system are sufficient. In order to reach this line friendly performance with an existing converter and to keep the expenditure for the line-side filter low, appropriate PWM at a high switching frequency (>10 kHz) is necessary. The theory of the control strategies and appropriate PWM are presented. Practical results obtained with an insulated-gate bipolar transistor (IGBT) converter illustrate the dynamic and steady-state performance of the new control system in both energy-flow directions.<>

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Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting

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