Decoupled optimal power flow simulation to maximize customer welfare
Ong, Yao Zhou
Date of Issue2018
School of Electrical and Electronic Engineering
The purpose of this project is to study the feasibility of utilizing the DC-Optimal Power Flow (OPF) solution to maximize customer’s welfare in a real-world AC setting. DC-OPF is an approximation of the conventional OPF, where a standard DC-OPF formulation neglects losses and reactive power in the system and assumes that all the buses in the system have a flat voltage magnitude of 1 per unit (pu). In addition, Demand Side Management (DSM) will be incorporated into the DC-OPF formulation to simulate customer’s participation, which will further reduce the cost of generation and maximize the welfare of customers. Due to the simplifications made, DC-OPF solutions do not guarantee AC feasibility. An iterative validation process proposed will be used to test for the AC feasibility of a DC-OPF solution on a realistic AC simulation environment. Rectifications will be made if system violations are found, and the process will repeat until an AC feasible DC-OPF solution is obtained. The IEEE 14-bus system and 15-bus microgrid from NTU’s Clean Energy Research Laboratory (CERL) will be used for the study in this project. Results show that with the validation process proposed, DC-OPF solutions can be used in a real-world AC setting. Despite a difference in the solution of an AC feasible DC-OPF and DC-OPF, the difference is within acceptable limits. Furthermore, the use of DSM can tremendously improve the overall time taken to obtain an AC feasible DC-OPF solution and further maximize the welfare of customers.
DRNTU::Engineering::Electrical and electronic engineering::Electric power::Production, transmission and distribution
Final Year Project (FYP)
Nanyang Technological University