CONTROL UNIT OF AUTOMATIC VOLTAGE CONTROL SYSTEM FOR SYNCHRONOUS GENERATOR

摘要

PURPOSE: A control unit of an automatic voltage control system for synchronous generator is provided to enhance voltage stability by maintaining accurately voltage of the synchronous generator. CONSTITUTION: An oscillation portion(1) generates frequencies according to a fast/slow mode of a synchronous generator. A demultiplier(2) demultiplies an output signal of the oscillation portion(1) and provides a clock pulse and a count pulse to a logic network(3). The logic network(3) receives the clock pulse and the count pulse from the demultiplier(2) and generates an up/down signal or a count signal. A binary counter(4) performs a counting operation according to the up/down signal and outputs a counted result to a D/A converter portion(6). An initialization portion(5) performs an initializing process when power is applied to an analog memory control module. The D/A converter portion(6) converts an output of the binary counter(4) to an analog signal.