变频空调压缩机及变频调速系统的技术现状（Technical status quo of inverter air conditioner compressor and variable frequency speed control system）.docVIP

变频空调压缩机及变频调速系统的技术现状（Technical status quo of inverter air conditioner compressor and variable frequency speed control system） Inverter air conditioner compressor and a 5 low frequency bin Liang Bi them as swollen? This paper introduces three kinds of commonly used cocoon development and technical situation of inverter compressor refrigeration, and from the inverter, micro controller, method of generating PWM wave and inverter compressor motors and so on 4 aspects discusses the frequency control system Ding. Keywords variable frequency compressor; frequency conversion; speed regulation system; technical status quo; 1 Introduction Pang refrigeration system with conventional compressor, so the research focus on the refrigeration system and the compressor efficiency has been in the steady state nominal working condition and rated speed of L and other work must be diluted 4 car trouble on the main pieces of the lower nest a wholesale. Gu Ka Chi zinc what if the enemy. Ether fine sauce ne Gu wholesale drop spindle pound from Gu. W from domestic wholesale evaporation temperature. This mode of control causes the evaporation temperature to fluctuate greatly and affects the temperature of the cooling environment easily. The huge inertia of the compressor motor to overcome the rotor from rest to produce the rated speed change process in the work process, especially with load, high starting torque to operating torque for many times, the result is not only to spend extra energy, and will wear and motion series compressor components. In addition to this operation will cause vibration, noise and impulse current during the startup process, caused by the fluctuations of the supply voltage, so the inverter compressor should be used instead of fixed speed compressor, so as to avoid the frequent start stop process. The frequency conversion technology mainly consists of the following 4 key technologies: inverter, microcontroller, PWM wave generation, and inverter compressor motor selecti