| 摘要 |
The present invention provides a method for operating a dual controller, which determines whether an error occurs in the dual controller by monitoring the state of the dual controller and enables the dual controller to be normally operated. The method for operating the dual controller according to the present invention calculates variations of dq conversion values by performing the dq conversion of control command output values of first and second controllers, and calculates average variations of the dq conversion values by performing the dq conversion of feedback input values of the first and second controllers. When the average variations of the dq conversion values for the control command output values are respectively the same as the average variations of the dq conversion values for the feedback input values, it is determined that the corresponding controller is in a normal state, with respect to the first and second controllers, and when the average variations of the dq conversion values for the control command output values are respectively different from the average variations of the dq conversion values for the feedback input values, it is determined that the corresponding controller is in an erroneous state with respect to the first and second controllers. According to the determined results, the controller in an erroneous state is set to a standby state and the controller of a normal state is set to an active state. |
