An Improved Voltage Controller for Distribution Static Compensator

Distribution System consist of different types of loads like linear and nonlinear load. Due to different types of loads, voltage unbalance and other power quality related issues will occur. To overcome this problem, a voltage source inverter based device called distribution static compensator can be used. In this work, an improved voltage controller for distributed static compensator, based on power balancing theory is presented. The improved controller uses only voltage sensors and this controller is developed by considering unbalanced load conditions. Proportional Integral controller is used for maintaining terminal voltage and DC link voltage. The controller is verified for different voltage disturbances such as sag and swell. MATLAB/SIMULINK package is used to verify the controller using simulation. The controller is also verified using Hardware in the loop simulation using DSPACE and results are presented for different voltage disturbances.

[1]  Yuan-Yih Hsu,et al.  Direct output voltage control of a static synchronous compensator using current sensorless d-q vector-based power balancing scheme , 2003, 2003 IEEE PES Transmission and Distribution Conference and Exposition (IEEE Cat. No.03CH37495).

[2]  M Thirupathaiah,et al.  Enhancement of Power Quality in Wind Power Distribution System by using Hybrid PSO-Firefly based DSTATCOM , 2018, International Journal of Renewable Energy Research.

[3]  Bhim Singh,et al.  An improved control algorithm of DSTATCOM for power quality improvement , 2015 .

[4]  Mahesh K. Mishra,et al.  A Voltage-Controlled DSTATCOM for Power-Quality Improvement , 2014, IEEE Transactions on Power Delivery.

[5]  P. Sekhar,et al.  Power Quality Enhancement Using Custom Power Devices , 2012 .

[6]  Bhim Singh,et al.  Implementation of Neural Network Controlled Three-Leg VSC and a Transformer as Three-Phase Four-Wire DSTATCOM , 2009, 2009 IEEE Industry Applications Society Annual Meeting.

[7]  Jorge Rodas,et al.  Finite Control Set Model Predictive Control Strategies for a Three-Phase Seven-level Cascade H-Bridge DSTATCOM , 2018, 2018 7th International Conference on Renewable Energy Research and Applications (ICRERA).

[8]  Om Prakash Mahela,et al.  Power quality improvement in distribution network using DSTATCOM with battery energy storage system , 2016 .

[9]  Arindam Ghosh,et al.  Operation of a DSTATCOM in voltage control mode , 2002 .

[10]  Chandan Kumar,et al.  A Multifunctional DSTATCOM Operating Under Stiff Source , 2014, IEEE Transactions on Industrial Electronics.

[11]  Dawood Amoozegar,et al.  DSTATCOM modelling for voltage stability with fuzzy logic PI current controller , 2016 .

[12]  Bhim Singh,et al.  Implementation of distribution static compensator for power quality enhancement using learning vector quantisation , 2013 .

[13]  Kr Padiyar,et al.  Facts Controllers in Power Transmission and Distribution , 2009 .

[14]  Anup Kumar Panda,et al.  DSTATCOM deploying CGBP based icos ϕ neural network technique for power conditioning , 2016 .

[15]  Yan Zhang,et al.  Global Voltage Sag Mitigation With FACTS-Based Devices , 2010, IEEE Transactions on Power Delivery.

[16]  Narain G. Hingorani,et al.  Introducing custom power , 1995 .

[17]  Chandan Kumar,et al.  An Improved Hybrid DSTATCOM Topology to Compensate Reactive and Nonlinear Loads , 2014, IEEE Transactions on Industrial Electronics.

[18]  Bhim Singh,et al.  Neural Network Based Conductance Estimation Control Algorithm for Shunt Compensation , 2014, IEEE Transactions on Industrial Informatics.

[19]  B. Singh,et al.  Performance of DSTATCOM Using Leaky LMS Control Algorithm , 2013, IEEE Journal of Emerging and Selected Topics in Power Electronics.

[20]  K. Ravi,et al.  Optimal size and siting of multiple DG and DSTATCOM in radial distribution system using Bacterial Foraging Optimization Algorithm , 2016 .