NOVEL LED DRIVE SYSTEM BASED ON MATRIX RECTIFIER
ABSTRACT This paper presents a novel LED drive system based on matrix rectifier. Matrix rectifier is applied to the LED drive system for the first time as to our knowledge. The novel LED drive system is composed of two stages. The first stage is the matrix rectifier,...
IMPROVEMENT OF HARMONIC CURRENT COMPENSATION FOR GRID INTEGRATED PV AND WIND HYBRID RENEWABLE ENERGY SYSTEM
ABSTRACT Ideally, electric utilities are required to supply sinusoidal voltage at constant rated frequency while end users need to receive a sinusoidal current with good power factor. Electrical power distribution systems are already experiencing distortion of the...
HYSTERESIS BAND CURRENT CONTROLLER FOR VOLTAGE REGULATION AND HARMONIC MITIGATION USING DSTATCOM
ABSTRACT This paper presents, Distribution Static Compensator (DST A TCOM) used for voltage regulation and harmonic mitigation in the three phase distribution system. Six pulse voltage source converter (VSC) is used as DSTATCOM with DC bus capacitor. Instantaneous...
A PERFORMANCE INVESTIGATION OF A FOUR-SWITCH THREE-PHASE INVERTER-FED IM DRIVES AT LOW SPEEDS USING FUZZY LOGIC AND PI CONTROLLERS
ABSTRACT This paper presents a speed controller using a fuzzy-logic controller (FLC) for indirect field oriented control (IFOC) of induction motor (IM) drives fed by a four-switch three-phase (FSTP) inverter. In the proposed approach, the IM drive system is fed by...
THREE PHASE INDUCTION MOTOR SPEED CONTROL USING PWM TECHNIQUE
ABSTRACT: There are various methods to control the induction motor. The stator frequency control is one of the simple methods to control the motor. The microcontroller based three phase induction motor speed control system can be used in many industries like cement,...
HIGH-EFFICIENCY PWM DC-AC INVERTER FOR SMALL PV POWER GENERATION SYSTEM
ABSTRACT This paper proposed an improved topology for a high efficiency PWM DC-AC grid-connected PV inverter that utilizes a zero-voltage-transition (ZVT) auxiliary network to provide soft-switching condition. In this paper, a soft-switching method using ZVT technique...
8051 MICROCONTRLLER BASED DIGITAL VOLTMETER
ABSTRACT: This 8051 microcontroller based digital voltmeter is used to measure up to 5 volts. This project is designed using AT89S51 microcontroller and ADC0804 is nothing but ADC (Analog to Digital Conversion). The output is displayed by using two seven segment...
SVM STRATEGIES FOR MULTIPHASE VOLTAGE SOURCE INVERTERS
ABSTRACT This paper compares Space Vector Modulation (SVM) strategies for multiphase inverters. Symmetric, discontinuous, and group-based SVM and Sinusoidal Pulse Width Modulation (SPWM) are compared against each other. Implementation techniques for n-phase modulation...
AUTOMATIC PLANT WATERING SYSTEM
ABSTRACT: This is one of the most useful project in the field of agriculture or in homes. The main concept of this project is to watering the plants automatically without any human interference. This project is also used in the field of agriculture to watering the...
A BIDIRECTIONAL THREE – LEVEL LLC RESONANT CONVERTER WITH PWAM CONTROL
ABSTRACT This paper proposes a bidirectional three-level LLC resonant converter with a new pulse width and amplitude modulation (PWAM) control method. With different control signals, it has three different operation modes with different voltage gains. Therefore, it...
HIGHLY EFFICIENT ASYMMETRICAL PWM FULL-BRIDGE CONVERTER FOR RENEWABLE ENERGY SOURCES
ABSTRACT This paper presents a highly efficient asymmetrical pulse-width modulated (APWM) full-bridge converter for renewable energy sources. The proposed converter adopts full-bridge topology and asymmetric control scheme to achieve the zero-voltage switching (ZVS)...
ELECTRICITY GENERATION FROM SPEED BREAKERS
ABSTRACT: Day by day, the population is increasing in the entire world and the energy sources are reducing. Therefore, to overcome this problem this project is very useful to generate electricity by utilizing the conventional sources.When a vehicle passes over a speed...