Study on the online early-warning system of wind farm integration
Xinchun Shi · Power System Protection and Control · 2011
Currently,the domestic dispatching management of wind power technology is not yet mature,so researching the online early-warning system of large-scale wind power integration has urgent and practical significance for the stable operation of power system.According to the research on key issues such as wind power prediction,power flow calculation and reactive power optimization,this paper proposes design concept of the online early-warning system of wind power integration,and then develops the system on the basis of the software DIgSILENT/PowerFactory.The system can predict nodes voltage and lines current trend with security assessment,if the lines current exceeds the limit value,the system warns and calculates the active power regulation of wind farm;if the nodes voltage exceeds the limit value,the system warns and calculates the reactive power optimization of wind farm.Analysis of the calculating cases and the results of practical application prove that the system realizes the online early-warning function of wind power integration,and is significant to the dispatching management of large-scale wind farm and safe operation of the power system.