A multiprocessor digital signal processing system for real-time power converter applications

The authors describe the design of a multiprocessor digital signal processing system for real-time control of power converters. The system incorporates three high-speed digital signal processors operating independently in parallel, but communicating with one another. The fully programmable system is a powerful device which can implement sophisticated control algorithms. A prototype operating at a clock frequency of 40 MHz has been built for testing and evaluation of control strategies with a laboratory model of an experimental HVDC power system based on pulse width modulation. An illustrative application to a converter for a high-voltage DC (HVDC) system is presented