Control of 4-Leg VSC based DSTATCOM using modified Instantaneous Symmetrical Component Theory

Kumar, Sunil; Singh, Bhim

doi:10.1109/icpws.2009.5442769

Cited by 20 publications

(12 citation statements)

References 7 publications

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“…Thus, fourth wire can cause an additional neutral line current flow and need extra compensation requirement. To eliminate the neutral line current in 3P4 W system, different DSTATCOM configurations have been applied, mainly, two split capacitor (2C) [35][36][37][38][39], four-leg (4 L) [39][40][41][42][43][44] and three H-bridge (3HB) [12,[45][46][47][48][49][50][51][52]. In 2C topology, DC-link consists of two capacitors which are connected in split as shown in Fig.…”

Section: Classification According To Type Of Power Sourcementioning

confidence: 99%

Mitigation of power quality problems using distribution static synchronous compensator: a comprehensive review

Latran

Teke

Yoldaş

2015

IET Power Electronics

134

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Electric power quality (PQ) in distribution system has become increasingly significant subject both for end users and power suppliers with the deregulation of the electric power market. The inadequate performance of conventional compensation devices to mitigate PQ problems has revealed the use of advanced power electronics based compensation devices. Distribution static synchronous compensator (DSTATCOM) is one of the shunt connected custom power devices used to improve PQ, voltage and reactive power support and to increase the capability of the auxiliary service for utility grid. This study presents a comprehensive review of the various DSTATCOM configurations for single-phase (two-wire) and three-phase (three or four-wire) systems and control strategies for the compensation of different PQ problems in distribution systems. In addition, comprehensive explanation, comparison and discussion on DSTATCOM technology are performed. Furthermore, latest trends, practical consideration and some future research fields on DSTATCOMs are discussed in detail. This is intended to present a broad perspective on the status of DSTATCOM technology to researchers dealing with compensation of PQ problems in distribution systems.

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Section: Classification According To Type Of Power Sourcementioning

confidence: 99%

Mitigation of power quality problems using distribution static synchronous compensator: a comprehensive review

Latran

Teke

Yoldaş

2015

IET Power Electronics

134

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“…Figure 15 a-c shows the 3p4w D-STATCOM, DVR and UPQC system configuration based on three phase four-wire (3p4w) four-leg (4-L) topology. For elimination of high neutral currents the 4-leg topology used in 3P4W systems [27], [210][211][212][213][214][215][216][217][218].Having a higher number of switching devices this topology outweighed the split capacitor topology by number for factors [27], [209] control, linear quadratic regulator (LQR), pole-shift control, deadbeat control, and Kalman filter are used. Recently, for improving the dynamic and steady state performance of the devices, the complex algorithms like fuzzy logic [46], [82], [108], [115], [125], [161], [163], neural networks and genetic are implemented with the help of microprocessor and microcontroller…”

Section: Three-phase Four-wire Split Capacitor (2c) Topologymentioning

confidence: 99%

“…The aim of p-q control strategy is to find an effective strategy to compensate nonlinear loads using active power filters. Initially it was applied to balanced three-phase three-wire systems (3p3w) and then it was extended to unbalanced four-wire systems [18], [20], [21], [56], [61], [71], [92], [110], [116], [131], [133], [134], [136], [144], [146], [159], [161], [165], [167], [173], [180][181][182][183], [187], [188], [190], [202], [203], [213], [216].…”

Section: Instantaneous Reactive Power Theory (P-q Theory)mentioning

confidence: 99%

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Mitigation of Power Quality Problems Using Custom Power Devices: A Review

Prasad

Akella

2017

IJEEI

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Electrical power quality (EPQ) in distribution systems is a critical issue for commercial, industrial and residential applications. The new concept of advanced power electronic based Custom Power Devices (CPDs) mainly distributed static synchronous compensator (D-STATCOM), dynamic voltage restorer (DVR) and unified power quality conditioner (UPQC) have been developed due to lacking the performance of traditional compensating devices to minimize power quality disturbances. This paper presents a comprehensive review on D-STATCOM, DVR and UPQC to solve the electrical power quality problems of the distribution networks. This is intended to present a broad overview of the various possible DSTATCOM, DVR and UPQC configurations for single-phase (two wire) and three-phase (three-wire and four-wire) networks and control strategies for the compensation of various power quality disturbances. Apart from this, comprehensive explanation, comparison, and discussion on D-STATCOM, DVR, and UPQC are presented. This paper is aimed to explore a broad prospective on the status of D-STATCOMs, DVRs, and UPQCs to researchers, engineers and the community dealing with the power quality enhancement. A classified list of some latest research publications on the topic is also appended for a quick reference.

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“…This configuration allows to control the voltage in the neutral wire [10] reducing the overvoltage problems in the capacitors. Several applications to solve problems of line harmonic currents and neutral line currents [11] and reactive power compensation [12] of LV distribution system has been satisfactory proposed using this topology.…”

Section: Introductionmentioning

confidence: 99%

Voltage Control of Four-Leg VSC for Power System Applications With Nonlinear and Unbalanced Loads

Olives-Camps

Mauricio

Barragán-Villarejo

et al. 2020

IEEE Trans. Energy Convers.

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Voltage source converters are presented as the key devices for the future massive integration of distributed renewable energy resources in the network. This paper presents a novel approach to control a three-phase four-leg voltage source converter for grid-forming operation. The objective of the controller is to generate a balanced three-phase voltage with a given amplitude and frequency at the point of common coupling. The proposed control algorithm works over the stationary axes. It is based on full state feedback law in combination with a resonant control loop tuned at the fundamental frequency in order to guaranty zero steady-state error on the voltage. The main advantage of the controller with respect to the classical cascade controllers is that this strategy is not modified depending on the type of load connected at the point of common coupling. Moreover, a systematic methodology to compute the controller gains is presented by solving an linear quadratic regulator problem that considers an extended model. This method guarantees small signal stability and provides active damping to the system. A laboratory testbed with different type of loads is used to validate and compare the proposed algorithm with the classical one. The experimental results demonstrate the effectiveness of the proposal by achieving low levels of harmonic distortion and imbalances in steady-state as well as a fast transient response.Index Terms-Four-leg voltage source converter (4LVSC), voltage control, grid-forming, full state feedback law, nonlinear unbalanced system.

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Control of 4-Leg VSC based DSTATCOM using modified Instantaneous Symmetrical Component Theory

Cited by 20 publications

References 7 publications

Mitigation of power quality problems using distribution static synchronous compensator: a comprehensive review

Mitigation of power quality problems using distribution static synchronous compensator: a comprehensive review

Mitigation of Power Quality Problems Using Custom Power Devices: A Review

Voltage Control of Four-Leg VSC for Power System Applications With Nonlinear and Unbalanced Loads

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