Informatics Publishing Limited

T. S. Anandhi ¹, S. PremKumar ²

Affiliations
1 Department of Electrical and Electronics Engineering, Jerusalem College of Engineering, Chennai-600100, Tamil Nadu, IN
2 Department of Electrical and Electronics Engineering, Bharath University, Chennai-600073,Tamil Nadu, IN

Abstract

The paper presents the application of a DC-DC Boost Convereter for solar powered traffic light equipment for traffic control. The proposed system gives a high performance of the solar powered traffic light equipment whose adaptability are very attractive for the solar array power tracking in dynamic environments. The input is a solar panel that supplies a voltage of 12 V which is used for this application. The DC Boost converter is successfully implemented using a low cost microcontroller.

Keywords

Boost Converter, Solar Panel, Solar Powered Traffic Light Equipment

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Joseph Anthony Prathap ¹, T. S. Anandhi ¹, T. S. Sivakumaran ²

Affiliations
1 Department of Electronics and Instrumentation Engineering, Annamalai University, Annamalai Nagar, Chidambaram - 608002, Tamil Nadu, IN
2 Department of Electrical and Electronics Engineering, Arunai Engineering College, Velu Nagar, Tiruvannamalai - 606603, Tamil Nadu, IN

Abstract

Objectives: In this paper, a Field Programmable Gate Array (FPGA) based real time implementation of a closed loop controller for regulating the load voltage under line and load disturbances by generating Digital Pulse Width Modulation (DPWM) is developed. Digital Proportional Integral (DPI) controller is designed to generate the DPWM. Methods: DPWM are developed by two methods: Counter based and Delay line based. The closed loop DPWM activated DC-DC buck converter is simulated using MODELSIM and tested in real time using Xilinx Spartan 3A DSP FPGA. Findings: Hardware results show the regulated load voltage by updating the DPWM control signal duty cycle to compensate the line and load disturbances. FPGA based DPWM provides less complexity in design. Improvements: Hybrid based DPWM method with closed loop control for DC-DC Buck converter could be used for voltage regulation.

Keywords

Closed Loop Controller, Digital PI, DPWM, FPGA.

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B. Muthuvel ¹, K. C. Balaji ², T. S. Anandhi ³, M. Janani Raj ⁴

Affiliations
1 Department of EEE, AKT Memorial college of Engineering and Technology, Villupuram, IN
2 Department of EEE, Sree Sastha Institute of Engineering and Technology, Chembarampakkam, Chennai, IN
3 Annamalai University, Annamalai Nagar, Cuddalore Dt., IN
4 Department of EEE, Vivekananda Polytechnic College, Vadalur, Cuddalore Dt., IN

Abstract

This paper proposes a simulation of designing and implementation of a PI controller with increasing and decreasing RL load values for a 3 phase to 3 phase power conversion using matrix converter. Closed loop PI controller is used to achieve real time control for 3 phase to 3 phase matrix converter. The entire matrix converter circuits are developed by Mathematical model so as to achieve less computational time and performances of the controller are evaluated using MATLAB for different RL Load value. The mathematical expressions of the three phase matrix converter are implemented by using simulink block set. The duty cycles of the matrix converter bidirectional switches are calculated using modified venturini algorithm for maximum (0.866) voltage transfer ratio.

Keywords

Matrix Converter, 3 Phase to 3 Phase Converter, 3 Phase AC Power Conversion, Closed Loop Controller, Closed Loop Matrix Converter.

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