Performance evaluation of different configurations of system with DSTATCOM using proposed Icos⁡ϕ technique

Abstract

The proposed Icos⁡ϕ control technique has been applied for power quality improvement using different configurations of system with distribution static compensator (DSTATCOM). Modeling, design and control of DSTATCOM are analysed in detial. Three phase reference current are extracted with this technique. The proposed technique has been used for power factor enhancement, voltage regulation, harmonic suppression and load balancing under dynamic condition with non-linear load. The proposed control is very effective for three different configurations of system with DSTATCOM for power quality improvement. Results for each configuration of system with DSTATCOM are simulated using MATLAB/Simulink sim power tool box. For teaching the power quality course, these can also be helpful.

Energy saving through load balancing of 3-wire loads

“…Traditional static var compensators (SVCs) and synchronous static compensators (STATCOMs) are the basic means used for power quality purposes [1]- [25]. Traditional static var compensators are represented by thyristor-controlled reactor (TCR), thyristor switched reactor (TSR), and thyristor switched capacitor (TSC).…”

“…Static compensators are represented by power converter based static var compensators and STATCOMs. Load compensation and power factor correction systems have great impact in transmission losses reduction and energy saving in power generation stations [1]- [25] . The minimization of current harmonics released from the operation of TSC-TCR based SVC into the distribution systems at low voltage distribution level was discussed by [1].…”

“…Active filters were introduced in [23] for the purposes of treating harmonic current components associating nonlinear loads, whereas in [24], a shunt active filter was provided to a single-phase converter to achieve significant reduction in harmonic current components. A DSTATCOM was introduced in [25] for power quality purposes. It was suggested to enhance the improvement of power factor, voltage regulation, current balancing, and harmonic minimization.…”

Load current balancing for 4-wire systems using harmonic treated TCR based SVCs

“…A single-phase voltage source converter equipped with a shunt active filter was proposed by [30] to accomplish optimal minimization of current disturbance and harmonic reduction. A DSTATCOM equipped with Icos𝜙 controlling modality was proposed by [30] to enhance voltage regulation, power factor improvement, load balancing, and harmonic suppression of non-linear loads, whereas a system in [31].…”