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Based on recording the inputs and outputs of control systems and its control modules and control blocks during on-site disturbance experiments and tests, an abnormal signal analysis based method for locating oscillation source in control blocks is proposed by intensively comparing the differences between the ideal standard responses and the actual response of a control system and its control modules...
The interaction between AC and DC systems in a long distance bulk power transmission system is very complicated. In this paper, taking some cases in China Southern Power Grid as examples, the main functions of the DC control system operating during the AC faults is discussed. During the AC faults, the protection and monitoring system for DC converter and the protection system for converter transformers...
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