Variable frequency speed regulation is the most commonly used speed regulation of three-phase asynchronous motor, mainly the use of variable frequency speed regulation than the polar logarithm speed regulation and variable slip rate speed regulation have a higher speed range, and variable frequency speed regulation in the precision of speed regulation is also very high.
It puts us on power frequency50HZThe alternating current is converted into direct current, and then the direct current is changed into alternating current that can be adjusted in frequency and voltage through the inverter link in the inverter, and then suppliedThree-phase asynchronous motor.
Variable frequency speed regulation is to change the frequency of the motor stator power supply, so as to change its synchronous speed regulation method.Asynchronous motorThe main equipment of the frequency conversion speed regulation system is the frequency converter that provides the frequency conversion power supply, and the frequency converter can be divided into AC-Direct current-Ac inverter and AC-Ac inverter two categories, most of the current domestic use-straight-Ac frequency converter.
Its characteristics:
①Wide application range, can be used in cage asynchronous motor;
②The technology is complicated, the cost is high, and the maintenance and overhaul are difficult.
③High efficiency, no additional loss during speed regulation;
④Large speed range, hard characteristics, high precision;
The above content is composed ofThree-phase asynchronous motor manufacturers, provided by Senli Motor. Available if needed1688Search "Shengzhou Chaoli Electric Appliance Factory", or contact us directly0575-8378-1127.
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