The invention discloses a
control system and method of an electric compressor of a
new energy automobile. The
control system comprises an inverse variation module, an energy conversion module, a
voltage distributing module, compressor drivers, a
brake energy recovering device and a main controller. The input end of the inverse variation module is connected with the output end of a
battery pack, the input end of the energy conversion module is connected with the output end of the inverse variation module, and the
voltage distributing module is connected to the output end of the energy conversion module and comprises at least two capacitors arranged in a series-connection mode, wherein one
capacitor is adjustable, and the adjustable
capacitor is provided with a
capacitance value adjusting mechanism. The compressor drivers are arranged at the two ends of the adjustable
capacitor, the input end of the
brake energy recovering device is connected with the
stator end of a
car driving motor, and the main controller is connected with the
capacitance value adjusting mechanism, a compressor controller and the control end of the driving motor, and the two ends of the
battery pack are further provided with staggered
voltage-increasing circuits. According to the
control system and method of the electric compressor of the
new energy automobile, the technical problem that operation of a compressor is instable is solved.