 This paper presents the development of a control scheme for a multilevel diode-clamped converter connected in a series-parallel fashion to the electrical system such that it can compensate for deviations in utility voltage (sag, surge, and unbalance) and act as a harmonic and/or reactive current source for a load. New carrier-based multilevel pulse width modulation (PWM) techniques are identi...

1EEE Department, KKR & KSR Institute of Technology and Sciences,Guntur,AP,India 2Department of EEE, University college of Engineering, JNTU Kakinada, AP,India 3Department of EEE, KL University, Vaddeswaram, AP,India --------------------------------------------------------------------**--------------------------------------------------------------------Abstract This paper proposes a novel predic...

This paper presents an alternative method based on artificial neural network, which is used to obtain the reference currents for harmonic current suppression and reactive power compensation in a shunt active power filter applied to three-phase four-wire system. The neural network consists of a multilayer perceptron, which is trained to estimate the peak amplitude of the load fundamental compone...

The low harmonic distortion and reduced switching losses are the advantages of using multilevel inverter. For this purpose, three-level inverter is used in paper as a three-phase four-leg shunt active power filter (SAPF). SAPF to eliminate current compensate reactive current, balance load currents under an unbalanced non-linear load. A fuzzy logic controller self-tuning filters (STF) control (A...

In this Space Vector PWM Control technique is designed for a three-phase voltage source converter (VSC) which act as a Static Synchronous Compensators to provide reactive power compensation. The VSC as STATCOM provide efficient damping for sub synchronous resonance that enhance the Power System Stability in addition to RPC. Among different Pulse width modulation techniques SVPWM technique is im...

Topology for reactive power compensation of dynamic load in closed loop is presented. The scheme consists of Thyristor Binary Switched Capacitor (TBSC) banks and a Thyristor Controlled Reactor (TCR). TBSC is based on a chain of Thyristor Switched Capacitor (TSC) banks arranged in binary sequential manner. TCR capacity is chosen to be smallest of TBSC step size. A transient free switching of TBS...

1 PG Student, Dept of EE, Mata Raj Kaur Institute of Engineering & Technology, Saharanwas, Rewari, India 2 Associate Professor & HOD, Dept of EE, Mata Raj Kaur Institute of Engineering & Technology, Saharanwas, Rewari, India ---------------------------------------------------------------------***--------------------------------------------------------------------ABSTRACT: This paper presents a ...

In modern power system, the switching devices are generally used in combination with unbalanced reactive loads which produces current related Power Quality (PQ) problems by making source currents distorted and unbalanced. Usually a STATCOM is installed to support electricity networks that have a poor power factor and often poor voltage regulation. A Distribution Static Compensator (DSTATCOM) op...

Variable speed drives (VSDs) use power electronic components as controlled switches which distort the sinusoidal current and voltage waveforms of AC grid due to harmonic injection at the point of common coupling (PCC). These harmonics and distortions are propagated through the power network and affect all other connected loads. So, the shunt active power filter (SAPF) is one of the proposed too...