This article uses a dynamic voltage restorer to tackle wide range of power quality issues, such as drooping and swelling, spikes, distortions, so on. The proportional controller, integrated controller (PI), adaptive neuro-fuzzy inference system (ANFIS) are proposed (DVR) controllers. control strategy's goal is employ an injection transformer mitigate for the needed keep load fixed. settings PI ...

One of the key aspects of power quality improvement in power system is the mitigation of voltage sags/swells and flicker. Custom power devices have been known as the best tools for voltage disturbances mitigation as well as reactive power compensation. Dynamic Voltage Restorer (DVR) which is the most efficient and effective modern custom power device can provide the most commercial solution to ...

In this paper, a new dual function fault current limiter-dynamic voltage restorer (FCL-DVR) topology is proposed. The proposed structure, in addition to performing routine FCL tasks, can be used improve the quality of point common coupling (PCC). A salient feature FCL-DVR its reduced number semiconductor switches and gate drive control circuit components. Perhaps, variety structure have been bu...

In recent years, the penetration of renewable energy sources (RES) in microgrids and distribution system feeders has increased manifold. Moreover, advancement power electronics-based devices significantly number sensitive loads. Variations voltage under intermittent RES create functional problems with loads, necessitating regulators (VR) installation. this paper, two custom devices: dynamic res...

A custom power device known as dynamic voltage restorer (DVR) has been investigated to operate a distribution system at its desired performance. The with voltage-related quality issues in the supply side addressed through this article using DVR. Four different grid disturbances, such sag, swell, unbalances, and distortions, have taken into account while testing DVR capability. controlled optimi...

The dynamic voltage restorer (DVR) is an important device for coping with sag, swell, and unbalance. However, it a real-time mechanism must operate as quickly possible to protect the sensitive critical load from supply-side anomalies. Hence, fast detection of disturbances reference generation essential DVR. This paper proposes simple disturbance approach based on three-phase phasor diagram whic...

A high-frequency isolated multilevel cascaded-type bipolar direct PWM ac-ac converter is proposed. By cascading N-unit cells, the can produce symmetric voltage gain of ±ND. It does not require a separate ac source for each unit cell, and provide higher output voltages with multiple levels using low-voltage rating devices, decreasing harmonics filtering requirements. Moreover, phase-shift switch...

The enhancement in electric power quality using a single-stage solar PV integrated Unified Power Quality Conditioner (UPQC) has been discussed this paper. UPQC is the combination of Distributed static compensator (DSTATCOM) and Dynamic Voltage Restorer (DVR) having common DC voltage supply link. DSTATCOM compensates for load current associated problems like factor improvement, even odd harmonic...

The most vexing problem plaguing Rumuomoi's 11kV distribution network is voltage sag and swell, which degrades power quality. There has been no effective mitigation control implemented. purpose of this research to address the issue quality by implementing artificial neural (ANN) with an embedded dynamic restorer (DVR). To begin, trained using input desired data obtained during simulation a prop...

This paper discusses design and simulation of dynamic voltage restorer for improve power quality & reduce the harmonics distortion of sensitive load. Electronics devices are very sensitive load against harmonics. DVR proposed not only to improve PQ but also to reduce HD due to the presence of non-linear load. The DVR consists of injection transformer, filter, ESS, VSI and control system. The ba...