Control rectifier for variable speed single phase DC motor

Mohd Helmi, Samta (2008) Control rectifier for variable speed single phase DC motor. Faculty of Electrical & Electronic Engineering, Universiti Malaysia Pahang.


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An electric power can be converted from one form to another form by using power electronics devices. The function of power electronics circuits by using semiconductor devices as switch is modifying or controlling a voltage. The goal of power electronics circuits are to convert electrical energy from one form to another, from source to load with highest efficiency, high availability and high reliability with the lowest cost, smallest size and weight. The term rectification refers to the power circuit whose function is to alter the ac characteristic of the line electric power to produce a “rectified”ac power at the load side that contain the dc value. In this project task, the rectifier circuit should be possible to produce a variable average voltage by controlling the delay. The single phase 240 Vrms AC source is stepped down to 12 Vrms by using step-down power transformer. A versatile method of controlling the output of a full-wave rectifier is to substitute controlled switches such as SCRs for the diodes. The output is controlled by adjusting the delay angle of each SCR, resulting in an output voltage or output current which is variable over a limited range with programmed the microcontroller.

Item Type: Undergraduates Project Papers
Additional Information: Project paper (Bachelor of Electrical Engineering (Power systems)) -- Universiti Malaysia Pahang - 2008; SV:MUHAMAD ZAHIM B SUJOD; CD:3253
Uncontrolled Keywords: Power electronics Digital electronics
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Faculty/Division: Faculty of Electrical & Electronic Engineering
Depositing User: Miss Amelia Binti Hasan
Date Deposited: 02 Apr 2010 07:21
Last Modified: 16 Aug 2023 04:23
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