PROPORTIONAL INTEGRAL REGULATING LOOP FOR A DIGITAL REGULATOR DEVICE FOR AUTOMOTIVE VEHICLE EXCITATION ROTATING ELECTRIC MACHINE

摘要

The regulating loop for a digital regulator of an excitation rotating electric machine is suitable for operation as a generator delivering an output voltage tailored by an excitation current. The digital regulator comprises means of control of the excitation current and the regulating loop comprises, at input, a means of measurement by sampling the output voltage generating a measurement signal (U_m), means of error calculation (13) generating an error signal (e) equal to a difference between the measurement signal (U_m) and a setpoint (U0), means of processing (14, 15, 16, 17, 18, 20) of the error signal (e) generating a regulating signal (Y_sat) comprising in parallel a first amplifier (14), an integrator (15) and an anti-saturation system (23), and comprising, at output, means of generation of a control signal (PWM) controlling the means of control as a function of the regulating signal (Y_sat). In accordance with the invention, the anti-saturation system (23) is a conditional detection system (24).