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DC-DC converters are the heart of any switched mode power supply (SMPS) system. Rather than using multiple number of DC-DC converters for regulating voltage of each of the outputs in a multi-output SMPS, the reliability and cost-effectiveness can be improved if a single DC-DC converter is used and viable control technique is employed to regulate the voltages effectively. This paper deals with such...
In this paper, a neural network controlled DSTATCOM (Distribution Static Compensator) using dSPACE processor is implemented for power quality improvement in a three-phase four-wire distribution system. A three-leg VSC (Voltage Source Converter) based DSTATCOM with a zig-zag transformer is used for the compensation of reactive power for voltage regulation or for power factor correction along with load...
A new topology of three-phase four-wire DSTATCOM consisting of a H-bridge VSC (voltage source converter) with a star/delta transformer is proposed for power quality improvement in the distribution systems. The proposed DSTATCOM (distribution static compensator) provides the voltage regulation or power factor correction by reactive power compensation along with harmonics elimination, load balancing...
A new topology of DSTATCOM (distribution static compensator) consisting of a H-bridge VSC (voltage source converter) and a star/delta transformer is proposed for power quality improvement in a three-phase four-wire distribution system. The star/delta transformer provides isolation to the H- bridge VSC as well as mitigates the zero sequence current in a three-phase four-wire distribution system. The...
In this paper, a new topology of DSTATCOM (distribution static compensator) is proposed for power quality improvement in a three-phase four-wire distribution system. A three-leg VSC (voltage source converter) based DSTATCOM is integrated with a zig-zag transformer for the compensation of reactive power for voltage regulation or for power factor correction along with load balancing, elimination of...
This paper addresses several issues concerning the modeling and application of single-phase, single switch, power factor corrected AC-DC high frequency switching converter topologies with transformer isolation. A detailed analysis, simulation and development are presented for forward buck and flyback buck-boost converters with high frequency isolation in discontinuous conduction mode (DCM) operation...
Multi-pulse gate turn-off thyristor based voltage source converter (GTO-VSC) topology having a number of 6-pulse VSCs as elementary unit together with fundamental frequency mode of GTO gate control are widely used in STATCOM for dynamic reactive power compensation in electrical network. A 12-pulse topology generally produces an AC output voltage waveforms which contain 11th, 13th, etc. harmonics and...
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