Yang, Xiyun; Li, Jinxia; Liu, Wei; Guo, Peng - In: Energies 4 (2011) 6, pp. 978-997
discrete state of the operation of the hydraulic pitch system of the wind turbine and at the same time a fault Petri net model … describe the structure, function and operation of the hydraulic pitch system with a graphic language, but the fault Petri net … model can also clearly express the logical relations among faults. The novel Petri net model offers simple calculations and …
