Dual Mode Control of Motor Drive with Integrated Inverter/Converter Circuit for EV/HEV Application
D. Thejasvi1, P. Ram Kishore Kumar Reddy2
1D. Thejasvi, Department of Electrical and Electronics Engineering, Mahatma Gandhi Institute of Technology, JNTUH, Hyderabad, India.
2Dr. P. Ram Kishore Kumar Reddy, Department of Electrical and Electronics Engineering, Mahatma Gandhi Institute of Technology, JNTUH Hyderabad, India.
Manuscript received on January 12, 2015. | Revised Manuscript received on January 13, 2015. | Manuscript published on January 25, 2015. | PP:12-16 | Volume-3 Issue-3, January 2015. | Retrieval Number: C0894013315
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Abstract: The system configuration including green power generator, energy storage element, dc appliance and equipment, and energy management system (EMS) with fuzzy logic will be introduced. The proposed integrated circuit allows the machine to operate in motor mode or acts as boost inductors of the boost converter, and thereby boosting the output torque coupled to the same transmission system or dc-link voltage of the inverter connected to the output of the integrated circuit. In motor mode, the proposed integrated circuit acts as an inverter and it becomes a boost-type boost converter, while using the motor windings as the boost inductors to boost the converter output voltage. Enhancement of a renewable power management system with intelligence control techniques (Fuzzy) for a micro grid system. Modeling, analysis, and control of distributed power sources and energy storage devices with MATLAB/ Simulink are proposed, and the integrated monitoring EMS is implemented. To improve the life cycle of the battery, intelligence control techniques manage the desired state of charge. The controller is to optimize energy distribution and to set up battery state of charge SOC parameters. In the development of the green energy systems, a control method is required to optimize energy distribution of a micro grid system. The design concept of this study was to increase the useful life of lithium batteries and to include charge and over discharge protection mechanisms. The power generator includes PV panels, wind turbines, and fuel cells. The fuel cells provide base power for the emergency loads when the system is operated during a power failure. Maximum power point trackers are associated with PV panels and wind turbines to draw maximum power, which is fed into the dc grid. The loads are connected to the grid and supplied from the grid directly. If there is power shortage, the bidirectional inverter will take power from the ac grid and it is operated in rectification mode with power factor correction to regulate the dc grid voltage within a range of 380 ± 20 V.
Keywords: Energy management system (EMS), Fuzzy Logic, State of charge (SOC), Micro grid, MATLAB/SIMULINK