Method of analyzing the influence of mass wind power accessing on directional comparison pilot protection

The invention discloses a method of simulating, verifying and analyzing the influence of mass wind power accessing to an AC-DC hybrid system on directional comparison pilot protection. The method mainly comprises the following steps of analyzing fault component directional elements; on the basis of the fault component direction analyzing result, establishing element classifications based on fault component directions; according to the element classifications based on the fault classification direction, performing system fault phase error analysis; according to the system fault phase error analysis result, performing application condition analysis of the fault component directional elements; and based on the fault component directional element application condition analysis result, setting up a simulation model and performing simulation and verification. The method of simulating, verifying and analyzing the influence of mass wind power accessing to the AC-DC hybrid system on directional comparison pilot protection can overcome defects existing in the prior art and characterized by great power grid fluctuation, high failure rate, bad safety, etc. By means of the method, advantages of low power grid fluctuation, low failure rate and good safety are achieved.