Optimal Allocation of Power-Electronic Interfaced Wind Turbines Using a Genetic Algorithm – Monte Carlo Hybrid Optimization Method

Chapter · September 2010with14 Reads
DOI: 10.1007/978-3-642-13250-6_1
In book: Wind Power Systems, pp.1-23

    Abstract

    The increasing amount of wind power integrated to power systems presents a number of challenges to the system operation. One
    issue related to wind power integration concerns the location and capacities of the wind turbines (WTs) in the network. Although
    the location of wind turbines is mainly determined by the wind resource and geographic conditions, the location of wind turbines
    in a power system network may significantly affect the distribution of power flow, power losses, etc. Furthermore, modern
    WTs with power-electronic interface have the capability of controlling reactive power output, which can enhance the power
    system security and improve the system steady-state performance by reducing network losses. This chapter presents a hybrid
    optimization method that minimizes the annual system power losses. The optimization considers a 95%-probability of fulfilling
    the voltage and current limit requirements. The method combines the Genetic Algorithm (GA), gradient-based constrained nonlinear
    optimization algorithm and sequential Monte Carlo simulation (MCS). The GA searches for the optimal locations and capacities
    of WTs. The gradient-based optimization finds the optimal power factor setting of WTs. The sequential MCS takes into account
    the stochastic behaviour of wind power generation and load. The proposed hybrid optimization method is demonstrated on an
    11 kV 69-bus distribution system.