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When large power supply system becomes isolated after fault occurred, the best method is finding a suitable grid-connected point to connect with external power system to maintain stable. This paper presents different connection methods on different operation conditions based on one actual power supply system. If active power in isolated system is larger than load demand, cutting-generator is adopted;...
This paper introduces the Gaussian quadrature method for measuring voltage using three electric field sensors. This novel optic voltage transducer (OVT) deduces voltage value by the quadrature method with limited electrical field sensors, and overcomes a number of shortcomings of the traditional voltage transducer. This paper presents the theory of new OVT, and analyzes the numerical calculation method...
Comparing with the large power system, power supply system of steel enterprise has significantly different characteristics, and there has been relatively little research on its stability control. Power supply system of steel enterprises, as a typical active power-receiving system, generally has private power plants, which connected with external power grid. When disconnected with external power grid...
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