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The Switched Capacitor (SC) Circuit is investigated in this paper as a Solid-State Fault Current Limiter and interrupting device (FCLID) with power factor correction suitable for low-voltage distribution networks. It was applied so far successfully as a power factor and harmonic current compensator and as a Switched Capacitor Circuit inverter. In this application it is inserted in series with the...
Power Quality (PQ) issues are increasingly important owing to the widespread use of power electronic devices, such as switch mode power supply, Electric Vehicle (EV) charging systems, etc. Non linear devices used in EV chargers draw non sinusoidal current and distort the input current from the grid resulting in the injection of Harmonic currents. This paper considers the PQ effects of a number of...
Power quality (PQ) is becoming increasingly important owing to the increasing use of power electronic devices, coupled with the increasing penetration of loads, which are sensitive to voltage disturbances. As a result of the problems caused by the confluence of these two trends, there is an increasing need for PQ to be monitored in order to diagnose its nature and locate the source of the disturbance,...
Power quality improvement has become one of the important issues because of increasing sensitive loads. For example, dynamic voltage restoration is one of the major issues about the power quality. On the other hand, a large current caused by some system fault may be unwillingly large because of many interconnections of distributed generators. A Unified Power Quality Conditioner (UPQC) is well known...
A complete modelling and numerical simulation of a system comprising a separately excited d.c. motor fed from a single-phase, single-way rectifier are presented in this paper. The strategy of this approach is based on the cascade combination of a diode bridge rectifier and a Sepic (single-ended primary inductance converter) circuit. Both step-up and step-down characteristics of the output voltage...
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