Impact of demand response programs on wind integrated distribution network with uncertain load demand
摘要
The liability of Distribution Control Centre (DCC) becomes more important to handle irregular load demand of distribution network and supply good quality of electrical power to the consumers. In this work, wind power has been optimally placed with the Demand Response (DR) program under uncertain load demand for the purpose of improvement of power loss reduction, voltage profile, total operating cost reduction and emission reduction. Two DR model are considered named as Emergency Demand Response Program (EDRP) and Time of Use (TOU) program for demand side management. Due to irregular behaviour of wind power therefore, it is normalized by Rayleigh probability distribution function. Moreover, in order to find optimal position and number of wind turbine units are identified via Gbest-guided Artificial Bee Colony (GABC)-based two stage algorithm. The proposed methodology is divided into two stages. In first stage, identify the weak buses which are having large voltage deviation using voltage deviation index. In second, the optimization algorithm identifies the optimal number of wind generator units. As a result, it improves the reduction of system power loss, voltage profile and reduction of emission generation level from thermal power plant. This approach is implemented on standard 33-bus and 85-bus distribution systems and their results are presented. Finally, it is analysed that, the collective impact of wind power integration and DR models make the system efficient, cost-effective for operation and environmental friendly.