Fuzzy Logic Control on Solid State Servo Voltage Stabilizer

P. Chow Reddy
2019 International Journal for Research in Applied Science and Engineering Technology  
Industry has been craving for a Servo Voltage Stabilizer with no moving parts, high efficiency, fast correction and a tight line and load regulation. This can be catered in two ways as per the application. One is by using a fixed voltage boost transformer with error correction PWM on the line voltage. The other is with a Power Factor Corrector and SPWM generated over the power delivered by PFC. For both the methods fuzzy logic in the feedback loop serves very fast correction of voltage across
more » ... of voltage across the load. In transformer method power switching and correction takes place in the low voltage secondary which gets in series with the line voltage. Weight of the system is higher but much less than a conventional servo voltage stabilizer. Switching effect does not fall on the load reducing di/dt. This is not the situation in PFC delivered power control. Power is switched at a high frequency then filtered and delivered to the load. Since this does not employ bulky transformers, system weight is low and compact in size.
doi:10.22214/ijraset.2019.9147 fatcat:v6urlb6hkzdo5o6iyb3smi6o7y