dsPIC based SPWM controlled Three Phase Inverter Fed Induction Motor Drive

Abstract

The induction motor fulfills admirably the requirements of substantially constant speed drive. This paper presents simulation and development of variable frequency drive by keeping constant voltage-frequency ratio of power supply which is fed to induction motor. A rule-based fuzzy logic controller applied to a scalar closed loop V/f induction motor (IM) speed control,in MATLAB environment. A fuzzy control system uses speed error and speed error variation to change both amplitude and frequency of supplied voltage. Reference speed and load torque variations are also simulated and implemented on hardware.

Fractional Order PIλ Controller Application for Limited Memory System

“…Variable-speed drive systems are used in many applications in industry. They are hybrid electric vehicles, air conditioning (HVAC) systems, heating, ventilation, driver controls and automotive controls [1,2]. In recent years, for variable-speed drive systems, induction machines are preferred in instead of direct current machines due to their low-cost, promising performance at bad environmental conditions, maintenance free, making less fault due to not containing brush and collector [3,4].…”