Design and operation of DSTATCOM for power quality improvement in distribution systems. Issue 13 (10th January 2018)

• Record Type: Journal Article
• Authors: Kumar, Manish; Swarnkar, Anil; Gupta, Nikhil; Niazi, Khaleequr Rehman
• Is Part Of: Journal of engineering. Volume 2017:Issue 13(2017)
• Page Start: 2328
• Page End: 2333
• Publication Date: 2018-01-10
• Subjects: power supply quality -- power factor -- electric current control -- voltage control -- reactive power control -- static VAr compensators -- power distribution control; distribution systems -- control scheme -- distribution static compensator -- four‐wire distribution system -- voltage control mode -- VCM -- current control mode operation -- harmonic component -- load current -- voltage regulation -- load terminal -- unity power factor -- UPF -- deadbeat voltage control law -- IGBT switches -- reference terminal voltage -- power quality issues -- nominal operation -- distorted source voltage -- power quality improvement -- switching pulses; Engineering -- Periodicals; Engineering; Electronic journals; Periodicals; 620.005
• DOI: 10.1049/joe.2017.0747
• Languages: English
• ISSNs: 2051-3305

Abstract

Abstract : This study provides a control scheme for distribution static compensator (DSTATCOM) which compensates three‐phase, four‐wire distribution system and operates the DSTATCOM in voltage control mode (VCM). This algorithm provides achievement of advantages of current control mode operation while DSTATCOM operated in VCM. Compensator injects reactive and harmonic component of load current and it provides fast voltage regulation at the load terminal with maintaining nearly unity power factor (UPF). Deadbeat voltage control law is used for generating switching pulses for insulated gate bipolar transistor (IGBT) switches and reference terminal voltage is generated by system in such a way that point of common coupling maintains nearly UPF. The proposed design is implemented to mitigate power quality issues induced by source as well as load and it is found to be efficient and robust which is validated through performance under nominal operation, unbalance and distorted source voltage, sag‐swell and unbalancing in load for any types of load. Capability of this arrangement has been verified using result obtained from MATLAB–SIMULINK‐based environment. Different types of loads have been considered (balanced and unbalanced, linear and non‐linear) to check the performance of this arrangement.