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The performance of the DSTATCOM depends on the control algorithm i.e. the extraction of the current components. So, for this, there are various control algorithms for the control of DSTATCOM block depending on various theories and strategies like phase shift control, instantaneous PQ theory, synchronous frame theory, Adaline based theory. Each of the algorithms specified have their own merits and...
Injection of the wind power into an electric grid affects the power quality. The performance of the wind turbine and thereby power quality are determined on the basis of measurements and the norms followed according to the guideline specified in International Electro-technical Commission standard, IEC-61400. The influence of the wind turbine in the grid system concerning the power quality measurements...
In this paper, a DSTATCOM (Distribution Static Compensator) using three single-phase VSCs (voltage source converters) integrated with three single phase transformers is employed for the power quality improvement in three-phase fourwire distribution system. Three single phase transformers are used for isolation and connection of H-bridge VSCs. This DSTATCOM provides the voltage regulation or power...
In this paper, a new control strategy based on current mode control for dynamic voltage restorer (DVR) is proposed to mitigate the power quality problems in the supply voltage. The DVR is controlled indirectly by controlling the supply current. The reference supply currents are estimated using the sensed load terminal voltages and the dc bus voltage of DVR. The control scheme is based on synchronous...
The dynamic voltage restorer (DVR) is used to regulate the voltage at the load terminals from various power quality problems like sag, swell, harmonics, unbalance etc., in supply voltage. In this paper, a novel control strategy is proposed to control a capacitor supported DVR for sag, swell, harmonics and unbalance in supply voltage. The reference signal for the series connected DVR is obtained indirectly...
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