REGULATION AND CONTROL SYSTEM FOR A WIND POWER PLANT

摘要

In a regulation and control system for a wind power plant, the actual value of the turbine speed is fed via a target power value generator (2) and a power limiting stage (3) and a PID power regulator (5) to the input of a current regulator (7). The output of the current regulator (7) is connected to a current supply network. The actual value of the turbine speed is fed via a PID speed regulator (12) to the input of a rotor blade angle regulator (15). The output of the rotor blade angle regulator (15) is connected to a rotor blade adjusting mechanism. A device (16) which limits the increase in rotor speed is connected to the rotor blade angle regulator (15). The output of the power limiting stage (3) is connected via a chart recorder (14) to the rotor blade angle regulator (15). The actual value of the turbine speed is fed via a chart recorder (21) and a PID voltage regulator (22) to the input of a field current regulator (23). The output of the field current regulator (23) is connected via grid trigger equipment (26) to the field coil of an a.c. dynamo. The actual generator voltage is applied via a rectifier (27) to a second input of the PID voltage controller (22). A regulator (24) which limits the maximum field current is arranged between a second and a third input of the field current regulator (23).