LOAD ANGLE SIGNAL GENERATING CONTROL APPARATUS AND METHOD USING NON-INTEGER MULTIPLES SIGNAL INPUT

摘要

An apparatus and a method for converting a load angle of a synchronous machine are disclosed. The apparatus for converting a load angle of a synchronous machine according to the present invention comprises: a square wave conversion unit for receiving and converting a teeth signal to a square wave signal; a correction module which calculates a load angle according to a ratio of a rated target frequency to a rated teeth input frequency with respect to the frequency of the signal converted by the square wave conversion unit, corrects an error between values determined through a frequency variation error and calculation of load angle data if the ratio of a rated target frequency to a rated teeth input frequency is an integer multiple, corrects an accumulated error generated during each cycle if the ratio of a rated target frequency to a rated teeth input frequency is a non-integer multiple, and generates an analog output signal based on a corrected value; and a load angle signal generation unit which generates a load angle signal based on the analog output signal generated by the correction module. [Reference numerals] (100) Square wave conversion unit; (110) Rated teeth input frequency setting unit; (120) Rated target frequency setting unit; (210) Pulse counter; (220) Frequency calculaltion unit; (230) Load angle calculation unit; (240) Error calculation unit; (250) Load angle storing unit; (260) Analog output unit; (300) Load angle signal generating unit; (AA) Teeth signal; (BB) Load angle signal