A control of a three-phase four-leg autonomous voltage inverter (VSI) based on PID-controllers with Scalar PWM as part of an autonomous power supply system (APS) is presented. The control system of the VSI consists of an outer control loop for controlling the load voltages and an inner control loop for controlling the output current of the VSI with a feedback load current loop. To analyze the stability of the system and design the PID regulators, the root locus and the Bode diagram are used. Studies of operating modes of APS are carried out using MATLAB/SIMULINK. The proposed method shows good tracking of the reference output voltage in the static and dynamic modes of APS.
Voltage Control of Autonomous Power Supply Systems Based on PID Controller Under Unbalanced and Nonlinear Load Conditions
2019-03-01
1364795 byte
Conference paper
Electronic Resource
English
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