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Stand-alone PV systems are increasingly being used in rural areas to drive basic loads typically less than 300 VA. Such systems are beneficial where grid electricity is unreliable or not present at all. A 250 VA battery integrated stand-alone PV system is proposed here. This PV system is based on simple hardware structure. It is possible to design this system at lower cost with higher reliability...
To improve the reliability and efficiency of grid tied inverters, it is suggested to replace some of the fully controllable devices by semi-controllable devices like thyristor. A modification for the HERIC topology is proposed, wherein the upper two switches of inverter leg and additional series connected switches for freewheeling are replaced by thyristors. The efficiency and reliability of full...
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