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Numerous models and formulations have been used to study synchronous machines in different applications. Herein, a unified derivation of the various model formulations, which support direct interface to external circuitry in a variety of scenarios, is presented. A synchronous machine model with magnetizing path saturation including cross saturation and an arbitrary rotor network representation is...
Power transformer noise control is inevitable requirement of time in order to protect people's health and the environment. As the transformer noise is mainly concentrated in frequency below 1500 Hz so a more precise noise canceller is needed. Unlike other noise remotion scheme that fails below 500 Hz, adaptive filters utilization in ANC model accomplishment is most efficient. The following research...
The three-phase Power Electronic Load (PEL) simulation of the asynchronous motor operation can be the divided into AC sine wave drive mode, the inverter open-loop drive mode and the inverter closed-loop drive mode. The control strategy of these three kinds of working conditions is simple to complex, and has certain inheritance and progressive relations. In the AC sine wave drive condition, the discrete...
In this paper, a novel simulation method of the three-phase phase-controlled rectifier bridge load is proposed. This method is very important for power electronic load (PEL) to test the power quality. About this content, there are few articles mentioned. Through the detailed analysis of three-phase phase-controlled rectifier bridge characteristics, a kind of load simulation algorithm is proposed....
Quantitatively analyze the characteristics of intraventricular flow is critical for the diagnosis of congenital heart disease (CHD). Although several techniques are applied in clinic currently, the information which they provided is not satisfied with the requirement of the therapies of CHD. Here, we introduced the method of computational fluid dynamics (CFD) to investigate the intraventricular hemodynamics...
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