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Use of renewable sources of energy for charging of electric vehicle(EV) batteries have generated tremendous interest. The use of off-board DC chargers to reduce the weight and increase space inside an electric vehicles has been an important area of interest. Harvesting solar energy to charge electric vehicle batteries can result in large inefficient systems when multiple power conversion stages are...
One of the major issues in a single phase inverter topology is the 120Hz ripple which needs large decoupling capacitors. Big bulky electrolytic capacitors can be an issue in applications where compact size and high power density are requirements such as solar converter chargers. In z source inverter systems, the design of the impedance network is critical. In single phase z source inverter systems,...
In this paper, a single stage highly efficient photovoltaic grid interconnected charging infrastructure has been designed for off-board DC charging for electric vehicles. This paper starts with the design of a single phase H-bridge quasi-z-source inverter (qZSI), component design and the pulse width modulation technique used. Then it discusses the control techniques used to control the power flow...
Twelve pulse nonlinear loads are generally employed in high power applications for large AC and DC drives. These 12-pulse rectifiers are utilized for high power loads because of comparatively less supply current Total Harmonic Distortion (THD) compared to 6-pulse rectifier at front end. However, both 6-pulse as well as 12-pulse converters at front end behaving as nonlinear loads do not meet IEEE 519...
This paper discusses the application of Distribution Static Compensator (DSTATCOM) to a small distribution system supplied from 42.5kVA diesel generator. The isolated system is not supported from the grid and is prone to a variety of system disturbances and faults. The shunt compensator is modelled, simulated and its performance is studied under load perturbations. To meet the real power needs, a...
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