Microprocessor-controlled HVDC simulator

Abstract
The power convertor and transducer requirements for direct digital control are first discussed with reference to an existing analogue-controlled scaled-down HVDC simulator. The interface between the HVDC simulator, a multimicroprocessor control system and a VDU interactive terminal is then described. A data acquisition scheme is developed and used as a basis for a dual-purpose system, which provides convertor control as the first priority and various interactive tasks as a second priority