An Optimal Allocation of Distributed Generation and Voltage Control Devices for Voltage Regulation Considering Renewable Energy Uncertainty

作者：Ausavanop Olarick; Chanhome Anuwat; Chaitusaney Surachai^*

来源：IEEJ Transactions on Electrical and Electronic Engineering, 2014, 9(S1): S17-S27.

DOI：10.1002/tee.22041

• adaptive Tabu search
• distributed generation
• distribution system
• optimization
• renewable energy
• voltage control device

Distributed generation (DG) may result in voltage fluctuation by changing line flow and reactive power injection, especially DG that generates power from renewable energy resources. To cope with this problem, this paper proposes an optimization process to optimally regulate the system voltage profile to lie close to the desired values by using the adaptive Tabu search (ATS) algorithm. The system voltages will be regulated by using dispatchable DG and voltage control devices, i.e. voltage regulator and capacitor. Moreover, probabilistic load flow calculation by using Monte Carlo simulation is chosen to evaluate the uncertainty of DG powered by renewable energy resources. The number of switching operations of the voltage regulator and capacitor are also accounted for in the optimization constraints, as excessive frequent switching operations can damage these devices. The optimal sizes and locations of dispatchable DGs and capacitors are considered as the optimization variables. The proposed method is demonstrated in an IEEE 34-bus distribution test system and a modified 21-bus Provincial Electricity Authority (PEA) system (Thailand).

• 出版日期2014-10