Li Ying-zi

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With grid-connected photovoltaic system increasing, distributed generations will influence the power quality. The forecast of distributed generations (e.g. grid-connected photovoltaic system) will be helpful to the planning, operations and management of distributed system. Basing on the Grey forecast GM (l, l) model and the stochastic processes Markov(More)
ALL the time, the methode of simulating the high-frequency contents of inverter-fed traction motor and the winding inter-turn voltage distribution has been the equivalent circuit model. The main simulating tool has been MATLAB. But now another method may be better than this one. Based on electromagnetic field theories, this paper researches the effect of(More)
The 3/3 Phase Double-winding Induction Generator is the integration of electrical machines with evaporative cooling technology. It is 2500 commutating asynchronous generator. This paper introduces the integration methods and experiment analyses. The integration of the power devices and other connective equipments makes the total system to be unitary. Thus(More)
Before, the methode of simulating the high-frequency contents of inverter-fed traction motor and the winding inter-turn voltage distribution has been the equivalent circuit model. The main simulating tool has been MATLAB. But now another method may be better than this one. Based on electromagnetic field theories, this paper researches the effect of(More)
The 3/3 Phase Double-winding Induction Generator is designed for the high speed of the primal rotor. It is 2500 commutating asynchronous generator. An exciting winding is designed in the stator, and the control scheme is implemented by a static exciting device. In this paper the circuit principle is analyzed, also the control scheme is discussed. The(More)
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