Research on high-voltage inverter controlling system based on wave algorithm

Abstract

High-voltage inverter designed in accordance with the principle of voltage serial stacking is adopted and controlling for the high-voltage electric motor with high-power is realized by the method of low-voltage series connection. Besides, distributed control system overcomes the shortcomings of traditional controlling system, such as bad reliability and difficulty in maintenance. Using ARM processor as the central controlling system can reduce the system cost; using DSP processor as the controlling unit can make the controlling method more flexible and also can gain more preciseness. The experiment in the principle of voltage serial stacking verifies that the method of voltage serial stacking is correct. What¿s more, AC asynchronous motor hauling experiment, adopting the method of low-voltage simulating high-voltage, verifies that the idea of voltage serial stacking and distributed control system based on the field bus are correct and realizes the function of the system.