In this paper, a new control algorithm for the dynamic voltage restorer (DVR) is proposed to regulate the load terminal voltage during various power quality problems that include sag, swell, harmonics and unbalance in the voltage at the point of common coupling (PCC). The proposed control strategy is an Adaline (Adaptive linear element) Artificial Neural Network (ANN) and is used to control a c...

This paper presents a survey on key issue, challenges and opportunities of power quality problems (PQ) such as transients, instantaneous (interruption, swell & sag), long duration variations (interruption, under voltage, over voltage), harmonics, voltage unbalance, voltage fluctuation, power frequency variations, power factor of system, and waveform distortion such as current and voltage in the...

Power quality is one of major problems in the presence era. It has become importance especially, with the introduction of sophisticated devices, whose performance is very sensitive to quality of power supply. power quality problem is an occurrence manifested as a nonstandard voltage,current,or frequency that results in a failure of end use euipement.One of the major problem deal here is the vol...

Custom power devices such as dynamic voltage restorer (DVR) and DSTATCOM are used to improve the power quality in distribution systems. These devices require real power to compensate the deep voltage sag during sufficient time. An interline DVR (IDVR) consists of several DVRs in different feeders. In this paper, a neural network is proposed to control the IDVR performance to achieve optimal mit...

Abstract: This paper presents a dual neural network based technique for detecting and classifying the power quality disturbances. In the proposed method, Adaptive Linear Neural Network is used to extract the rms voltage for harmonics and Interharmonics estimations. With the help of these indices, PQ disturbances such as Sag, Swell, Outages are detected and classified, Harmonics and Interharmoni...

Voltage sag and voltage swell are frequently occurred power quality problems in present distribution system, which cause more to avoid these maintain constant at sensitive load during Dynamic restorer gives solution .we propose self-supported DVR, minimize the cost by preventing external dc source it is controlled SRF PI control along with an inner current loop stabilize system outer increase r...