高速客车空调逆变电源电压矢量轨迹脉宽调制控制

Voltage Vector Locus PWM Control of the Inversion Supply of Air-Condition in High-Speed Coach

首先从理论上阐述电压矢量轨迹ＰＷＭ控制原理，建立了数学模型，提出了用电压矢量逼近理想磁链圆的方法，给出了任一分割方式的逼近路径，得到逆变器开关状态表，最后设计该控制的最佳硬件和软件，以实现对逆变器的控制．

The principle of voltage vector locus pulse width modulation control was put forward.Firstly analyzed PWM control principle of voltage vector locus in theory, formed mathematicalmodules and proposed a method to ideal flux circle with voltage vector, then gave the approximativepath of any segmentation mode to obtain the switching state table of a inverter and analyzederror and harmony on such basis. Finally designed the optimal hardware and software to realizevoltage vector locus pulse width modulation control and formed PWM signal in order to drivesome certain operation of a inverter and IGBT.