| 摘要 |
<p>A distributed-control system of an H-bridge inverter is provided to perform cell-based maintenance and compensation processes by using compensation calculators in respective cell controllers. A distributed-control system of a 3-phase H-bridge inverter includes a main controller(31), cell controllers(33A1~33An,33B1~33Bn,33C1~33Cn), and a CAN(Controller Area Network) communication unit(32). Plural power cells are series-connected to respective phases of the H-bridge inverter. The main controller receives a speed command and outputs a voltage reference signal corresponding to the speed command in a predetermined communication cycle. The cell controllers receive the voltage reference signal and output PWM(Pulse Width Modulation) signals for controlling the magnitude and phase of an output voltage in synchronization with the voltage reference signal. The CAN communication unit couples the main controller with the respective cell controllers, using a CAN communication scheme. A single CAN communication driver, which transmits the voltage reference signal to the respective cell controllers, is included in the main controller.</p> |
