Abstract:

Voltage quality is the core factor of safe and economic operation in power systems, and reasonable measures are needed for voltage regulation. The infeasibility degree was introduced into the mathematical model of voltage regulation, which can deal with the constraints of the model. In addition, an improved genetic algorithm was used to solve the voltage regulation problem. The infeasibility degree can extend the search scope of the genetic algorithm and enhance the ability of getting the optimal solutions. The results of a practice power system demonstrate that the proposed method can effectively balance the pressure between the optimization and the constraints of the objective function, and improve the voltage quality of power systems.

Key words: voltage quality; infeasibility degree; improved genetic algorithm; power systems