Advanced Power Electronics and Controllers for Renewable based Residential Energy Storage Systems

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With the advent of renewable resources, the conversion of the intermittent energy into usable form has became a new challenge. Power converters are normally used to interconnect the load and sources such as grid, renewables and energy storage systems. Similar to power converters, the loads were improved to have higher efficiencies. These loads use switching techniques that make them nonlinear. This nonlinearity causes the input current to become nonlinear which leads to voltage harmonics. Such voltage quality deterioration may harm sensitive loads such as hospital devices and may cause standard violations. On the other hand, inverters have protection system against unwanted/harmful conditions such as over-voltage and over-current which can lead to the second problem that is false fault detection by protection system.This research aims to design and implement robust controllers to avoid such problems and coordinator between controller and safety protection algorithm while complying with codes and standards. This research project is expected to take 12 months starting from the basic control concept and design to the implementation and testing of the controller on the company's existing inverters. The company will be involved in steps of the research project including consultations through follow-up report(s), review of simulations results, prototype implementations, and providing guidance for possible industrial design modifications and implementations.