Induction drive system with DSTATCOM based asymmetric twin converter

Abstract

High power demands are usually met by advanced power electronics converters in several large utility and electric drives applications. Applications from high power drives commonly uses solution based multi pulse and multilevel converters. A common DC link with atleast one voltage source converter (VSC) working with almost fundamental switching frequency are used in converters of multipulse type, and each output module is connected with the multipulse transformer in series. When compared to that of solution with single-VSC, Several VSCs generating different triggering pulses are adjused in order to achieve current injected with low specified total harmonic distortion (THD) with losses of abridged switching. Huge structure in complexity and expensive cost expenditure of the multipulse transformer is the major limitation of this scheme. DC link split capacitors in addition are eliminated by modifying the topology of the circuit. Thus, the independent voltages of the DC capacitor are controlled and decreased in number and the flow of third harmonic current component in the transformer is eliminated. The scheme of the designed controller is depending on the derived mathematical system model. Simulaion observation is used to check the scheme performance and efficiency in a detailed way with drive control technique.

Power quality conditioning using two-level buck inverter based DSTATCOM

“…Apart from these, the variable switching frequency can be attained by using this proposed inverter. Most important of all, it does not possess shoot through problems as happens in conventional VSI [16]- [19].…”

Cascaded H-bridge multilevel inverter-based DSTATCOM with an artificial neural fuzzy inference systembased controller

“…In literature, many control schemes have been reported for the distributed static compensator (DSTATCOM) [17]. Most of the control strategies are includes Fryze power theory, synchronous reference frame (SRF) theory, p-q theory, nonlinear control technique and Lyapunov function based control theory [18]. Numerous soft computing methods, such as the fuzzy logic approach, neural network (NN), and artificial neuro-fuzzy inference system (ANFIS), have been developed in addition to these, estimation of the reference current and generation of switching signals of DSTATCOM [19].…”

Fabrication and experimental study of transformer 400 V with a simple rectifier circuit design

“…ISSN: 2088-8708  At this time, the use of high voltage in renewable energy sources is very much needed. The high power demands are usually met by the advanced power electronics of the converter in some large utility and electric drive applications [9]. Renewable energy resources such as photovoltaics, wind turbines and fuel cells are widely used around the world [10].…”