This paper studied the real-time task fault-tolerant scheduling algorithm of the distribution network dynamic monitoring platform with heavy-overload distribution transformer in order to solve the problem of poor schedulability of distribution network dynamic monitoring platform when performing heavy overload monitoring task of distribution trans-former.According to the layered scheduling idea,fault-tolerant scheduling of real-time tasks were classified into upper scheduling algorithm and lower scheduling algorithm.Through the upper scheduling algorithm,the logistic model was used to predict whether there existed heavy-overload distribution transformer,and transfered to lower scheduling algo-rithm when encountering heavy overload.The lower scheduling algorithm used the priority attribute list of the platform to establish effective transfer function when platform manager performs dynamic monitoring task,and adopted symbol mod-ulation method to obtain scheduling output of the platform task,so as to ensure stable implementation of dynamic monito-ring distribution transformer overload.The proposed algorithm was proved by case analysis to achieve a success rate of fault-tolerant scheduling higher than 93%when coping with simultaneous 30 dynamic monitoring tasks of heavy-overload distribution network operation,and satisfactorily effective in real-time task fault-tolerant scheduling.
关键词
配变/重过载/配网运营/动态监控平台/实时任务/容错调度算法
Key words
distribution transformer/heavy overload/distribution network operation/dynamic monitoring platform/real-time task/fault-tolerant scheduling algorithm
维普
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