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This paper proposed a new flux linkage detection method for direct instantaneous torque control (DITC) for switched reluctance motor (SRM). The proposed flux linkage detection method is a fast method without clamping devices. It consists of measuring and calculating steps. In the measuring step, at the intermediate position, current curves are measured under current chopper control (CCC). At the aligned...
The dual three-phase permanent magnet synchronous motor (DTP PMSM) is running in asymmetrical situations with one or more of its stator phases open circuited. Moreover, the conventional coordinate transformation can not fulfill the decoupling control of DTP PMSM. To tackle these problems, we build the unified model of DTP PMSM in all kinds of open phase fault conditions in the d-q coordinate, and...
Shaped laser pulses obtained by learning control can substantially influence charge transfer which has a fundamental importance in the elementary processes of physics, chemistry and biology. Using a slow collision of sodium cation and iodine anion as an example, we perform learning control simulations by solving the time-dependent Schrödinger equation based on a two-state diabatic representation....
The objective of this research is to develop a system model and an intelligent controller for the meat drying process, which will lead to better control accuracy than the current PID control system used in meat manufacturing. In meat drying rooms, temperature and relative humidity are coupled by nonlinear thermodynamic laws. The coupling results in nonlinear fluctuations in relative humidity. The...
In this paper, we discuss the existence of solutions for networks of nonlinear parametrically forced oscillators. We deals with one type of nonlinear coupled system from the studying of the honeycomb sandwich plate. Based on the Implicit Function Theorem, the periodic orbit of the coupled system are derived by the hyperbolicity condition. The method of Poincare map is utilized to obtain solutions...
This paper aims to the control problems of spacecraft when a small flyer separated from a main spacecraft in orbit. Firstly, the kinetic model is established and disturbance of spring-eject separation on the main spacecraft is analyzed. Secondly, we choose the variable structure control method to control the main spacecraft attitude because the whole system is complex nonlinear coupling system during...
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