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This paper is to present a new model of Voltage and frequency drive control for inverter fed Induction motors. The V/f drive control is based on buck/boost converter circuit by changing the duration time and frequency. The output voltage and frequency of the inverter can control the speed of an induction motor. This new topology offers almost step up and step down of the output voltage without the...
The TMS320 - based control systems have numerous advantages. The high processing speed of the TMS320 family allows sophisticated control techniques to be used to build a high-precision control system. The experimental results for the V/f control of 3-hp induction motor drives controlled by a digital signal processor micro 2407 TMS320 chip have verified the effectiveness of the proposed scheme. The...
This paper gives an overview about motion control of induction motor and also presents the simulation and experiment of induction motor controller using method of voltage/frequency control. In this paper, the voltage/frequency (V/Hz) control principle is used to the speed controller for 3-phase AC induction motor. The DSP (TMS320F2812) controller is used to read the stator flux of motor (the AC machine...
An effective scheme of induction motor control without using stator sensor is proposed in this paper. The effective scheme consist of speed calculation algorithm and voltage/frequency control. The speed calculation algorithm is achieved by sensoring the current of stator and compared with the prospective speed then calculation by DSP. The principles of constant voltage/frequency (V/Hz) control for...
This paper presents the modeling, simulation and hardware implementation of voltage/frequency control of induction motor which is the most widely used in industrial applications. In this paper, the voltage/frequency (V/Hz) control principle is used to the speed controller for 3-phase AC induction motor. The DSP (TMS320F2812) controller is used to read the stator flux of motor (the AC machine stator...
In this paper, a simple adaptive speed control for induction motor is described and implemented using dedicated Digital Signal Processor (DSP). The controller structure design is based on voltage/frequency (V/Hz) control scheme that transforms the three phase motor speed into voltage and generating input of sine wave of PWM. Using these voltage components, the AC induction motor can be handled in...
Doubly fed induction generators (DFIGs) are widely used in wind generation. The possibility of getting a constant frequency AC output from a DFIG while driven by a variable speed prime mover improves the efficacy of energy harvest from wind. In the power lab at North Dakota State University (NDSU), the wind turbine is substituted by a variable-speed DC motor which dives a DFIG. A wound rotor induction...
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