An apparatus for driving an AC motor and variable Frequency for use in extraction Wells, a driving Circuit of an Alternating Current motor pump and a control method of AC motor and variable frequency

摘要

Apparatus for driving an AC motor and variable Frequency Drive Circuit, an AC motor and control method of AC motor and variable Frequency in the Alternating Current Circuit provides conditional to a motor which drives a motor Alternating Bo MBA extraction which is a torsional moment irregular.It also provides for the preparation of the primary power supply 310, Changing the primary service conditional 318 to a device driver of variable Frequency VFD 336, which modifies the Line Frequency of the alternating current at a Frequency controlled Speed change The engine in response to a Signal received from the Controller of the well 330And if you start to regenerate Inductively the current when the rotor Speed exceeds the Line Frequency of the impeller, and divert the excess condition of direct current supply to the primary Side R 318 of the variable Frequency Drive, where it can be reused.