2results about How to "Fine-grained control" patented technology

The application discloses a cold backup control method and controller of a processing core and an integrated circuit, relates to the technical field of processors, and comprises the following steps: in a current evaluation period, the cold backup controller can collect running state information of a target processing core corresponding to the cold backup controller, and adopts a preset scoring rule to evaluate the running state information, so that a target score of the target processing core in the current evaluation period is obtained. In a continuous preset number of periods, when the scores of the target processing core are all within a preset score threshold range, an interruption flag of the target processing core is read from an interruption controller, a task allocation flag of the target processing core is read from a task scheduler, and then whether the target processing core meets a cold backup condition is determined according to the interruption flag and the task allocation flag; if yes, a cold backup switching operation is performed on the target processing core. In this way, the response is timely, and the cold backup controller is only responsible for the processing core corresponding to the cold backup controller, so that the control granularity is relatively fine.

The application discloses a parallel fault-tolerant type converter bus short-circuit current limiting method and system, and relates to the technical field of wind power generation. The application establishes a differential equation of wind power generation voltage under normal state, obtains periodic components and non-periodic components of the differential equation when a short-circuit fault occurs in a converter of wind power generation, calculates the relationship between the periodic components and normal current before the fault through the reactive power characteristics when the converter is short-circuited, obtains a result expression of the periodic components, introduces virtual resistance and virtual inductance, orients the reference voltage of the converter, and calculates the virtual resistance and virtual inductance values meeting the requirement of reactive current injection based on the reference voltage, d-axis and q-axis components of the converter current. The application can effectively limit the short-circuit current of the converter bus, and can take corresponding protection measures when a short-circuit fault occurs in the converter of wind power generation, thereby protecting the converter and other devices in wind power generation.