INSTANTANEOUS LOAD CURRENT CONTROL SCHEME FOR VOLTAGE FED DC TO AC INVERTER SUPPLYING RESISTIVE-INDUCTIVE LOAD

摘要

A control system is provided for controlling varying alternating current (AC) to a load with varying resistance and inductance. A plurality of nested control loops may employ cascaded proportional controllers to provide desired control of a pulse width modulation (PWM) block to control an inverter that supplies AC power to the load. An AC feedback signal may be supplied to each proportional controller. An AC feed forward signal may be added to outputs of the proportional controllers.