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Electrical energy generation is evolving from centralized towards distributed energy resources (DER) like wind and solar power plants. In such power systems, new challenges arise for the design of voltage source converter (VSC) control strategies. In the last few years synchronverters have gained interest from the research community due to their capability of emulating synchronous machines (SMs) and...
With the ever growing demand for power and development of renewable energy technologies, the concepts of distributed generation and microgrids are quickly coming to the forefront. A microgrid is an electrical power grid where the load and power generation are within close proximity. Increasingly educational institutions are trying to capitalize on the need to educate future and current professional...
The key player in the multi-clock domain system is the synchronizer. This synchronizer suffers from the effect of metastability and results in the failure of the circuit. Prevention of the synchronizer from the metastability is feasible. Metastable state occurs whenever there is a violation of setup and hold time i.e., uncontrolled and unpredictable change in data within setup and hold time window...
In this paper, an attempt to implement auto synchronization technique using Charge Pump Phase Locked Loop (CPPLL) for grid connected solar photovoltaic system (SPV) has been made. The main aim of this paper is to reduce the phase angle mismatch between the grid voltage and inverter voltage, which in turn would improve the quality of power delivered by eliminating the unwanted islanding condition....
Since the photovoltaic systems development is growing exponentially, the policies related to grid integration will also have to change so that more and more PV systems can be accommodated in the grid. This paper discusses existing Central Electricity Authority (CEA) technical interconnection regulations. As PV penetration increases the CEA can reevaluate the existing operating range for voltage and...
This paper presents a theoretical analysis and simulation for the design and implementation of a Second Order Generalized Integrator - Frequency Locked Loop (SOGI-FLL) aimed at synchronization and fault detection when connecting an inverter to the utility grid. Such an inverter is implemented in a Highly-Efficient-and-Reliable- Inverter-Concept (HERIC) topology. The two main aims of this work are:...
This paper shows a novel design and implementation of a multi-purpose power module used to manage the energy produced by renewable energy sources and at the same time compensate the discontinuous power absorption from loads, with the final goals to increase power distribution efficiency and grid stability.
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