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Islanding operation at the sending terminal of Yunnan-Guangdong UHVDC transmission project was designed as one of the normal operation modes. In order to use this mode, it should be verified that the UHVDC and the islanding AC system can withstand impacts of various faults that may occur during real system operation. The DC system mono-polar blocking is one of the serious faults that the islanding...
Under asymmetric information environment, the evolutionary game model for opportunism behavior in purchasing alliance is established respectively in circumstances without preventative measures and introducing trust mechanism. Then, relevant conclusions are proved, and verified by means of numerical simulation. The result shows that, (1)The opportunism behavior will flood in the alliance without any...
This study aim to explain why talent concentrates to IC(industrial clusters), and how HR-environment and talent growth do effects on regional attraction. Regional attraction is defined as the regional capability of attracting and retaining workers and immigrants. The sample of this study was collected from four industrial clusters in China. HR-environment consists of micro-HR-environment measured...
Because of the complexity of topology and control strategy, the mid-voltage and large power frequency converter has more failure types and fault feature relatively. Then the correct identification and isolation of its internal faults are very important. Based on the MATLAB/Simulink, this paper established a complete fault simulation model of IGCT series mid-voltage & mid-power three level frequency...
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