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Application of Demand Response to Improve Voltage Regulation with High DG Penetration

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The ability of a consumer friendly demand response based voltage control (DR-VC) program to improve the voltage regulation in a low voltage distribution network (LVDN) with high penetration of DG is investigated. The use of active and reactive power management to regulate the nodal voltage in a distribution network with simple incremental reduction algorithm, in conjunction with DR, is proposed as a solution for over voltage and undervoltage issues in the LVDN. The algorithm micromanages the load and generation in the network enabling the operator to utilize grid resources economically and efficiently while maintaining fairness between consumers with minimum inconvenience. The algorithm is tested on a representative 74-load radial urban distribution network (Dublin, Ireland) using consumer load and DG generation profiles. The system is modelled and analysed using COM interface between OpenDSS and MATLAB. The DR is modelled through a mixed integer linear programming (MILP), implemented in CVX, such that consumer inconvenience is prioritized. The DR-VC algorithm is capable of regulating load and generation within normal operation limits during undervoltage and overvoltage scenarios.

Author(s):

Chittesh Veni Chandran    
Technological University Dublin
Ireland

Malabika Basu    
Technological University Dublin
Ireland

Keith Sunderland    
Technological University Dublin
Ireland

Shivananda Pukhrem    
Technological University Dublin
Ireland

João Catalão    
Faculty of Engineering of the University of Porto (FEUP)
Portugal

 

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