ELECTRIC MOTOR CONTROL SYSTEM DRIVER INVERTER AND CONTROL METHOD AND COMPUTER SOFTWARE AND STORAGE MEDIUM

摘要

An electric motor control system. The electric motor (40) is provided with a first encoder (42) and a sampling interval time thereof is a first interval time T; a shaft (50) is driven by the electric motor (40) and is provided with a second encoder (52) and a sampling interval time thereof is a second interval time t wherein T is greater than t. An electric motor control system (10) comprises an electric motor motion signal detection part (14) a shaft motion signal detection part (15) and a main control apparatus (16). The electric motor motion signal detection part (14) is capable of providing an electric motor motion signal of the electric motor every other first interval time T based on a received first encoder signal sent by the first encoder (42). The shaft motion signal detection part (15) is capable of providing a shaft motion signal of the shaft (50) every other second interval time t based on a received second encoder signal sent by the second encoder (52). The main control apparatus (16) is capable of receiving and calculating according to the electric motor motion signal and the shaft motion signal an electric motor motion parameter of the electric motor (40) at a moment every other second interval time t.