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In light condition, switches of Phase Shift-Full Bridge (PB-FB) DC/DC converter cannot satisfy the condition of Zero Voltage Switch (ZVS). Based on field-programmable gate array (FPGA), PWM and PS control method are used according to different load condition. In addition, switching loss of converter is explained, and design process is presented in detail. Experiment results indicate the mutual combination...
This is a design of a stable and reliable control and drive system of IGBT, according to the requirement of the dynamic harmonic filter. This design is centrally controlled by a 89C52 MCU and it mainly consists of 89C52 MCU, FPGA, touch screen, alarm circuit, drive and protection circuit, intelligent electrical energy sensor. It has main functions of collection of harmonic parameters of the power...
This paper deals with a new PWM control scheme of matrix converters, which have been proposed by the authors. The PWM control scheme is characterized by the calculation algorithm using pseudo inverse and the performance that the output voltage can be controlled completely even if the input voltage is distorted. An experimental system, which consists of a matrix converter main circuit and a control...
The paper introduces on operating principle of power management of photovoltaic system with maximum power tracker control to achieve the maximum efficiency of such systems. The paper presents different topologies of basic photovoltaic concepts with DC-DC converters including control design of maximum power tracker by Matlab-Simulink. The paper will be present different topologies of converter concepts...
The primary function of any adjustable speed motor drive is to control the speed, torque, acceleration, deceleration and direction of rotation of machine. Unlike constant speed systems, the adjustable drive permits the selection of infinite number of speeds within its operating range. Most multipurpose production machines benefit from adjustable speed control, since frequently their speed must change...
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