this paper presents an online optimized stator flux reference approximation scheme for application of direct torque control (DTC) technique to interior permanent magnet (IPM) brushless AC (BLAC) drives with maximum to...
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ISBN:
(纸本)9781849196161
this paper presents an online optimized stator flux reference approximation scheme for application of direct torque control (DTC) technique to interior permanent magnet (IPM) brushless AC (BLAC) drives with maximum torque per ampere (MTPA) operation. It is found that by considering dq-axis stator flux components instead of stator flux magnitude, straightforward mathematical functions for computing stator flux reference from the relevant torque reference to achieve MTPA operation can be derived. It is also demonstrated that by properly selecting initial value for approximating the proposed stator flux equation utilizing the Newton-Raphson method, a high degree of accuracy can be obtained utilizing only one computing step. It is shown that MTPA operation can be achieved for a DTC-based IPM BLAC drive using the proposed stator flux reference approximation scheme. Simulation results confirm validity of the proposed method.
As the radio spectrum is becoming more and more crowded, the cognitive radio has recently become a hot research topic to improve the spectrum utilization efficiency. It is well known that the success of cognitive radi...
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Flight quality of flapping-wing micro aerial vehicle (FMAV) depends much upon efficient control of flight attitude. So, an accurate model of flight attitude is of utmost importance. the fly mechanism of birds and big ...
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this study compared the characteristics of temperature of the electronic moxibustion and Gu-Gwan moxibustion using a cotton dummy by designing and manufacturing the electronic moxibustion using a heat-wire heater easy...
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this paper proposes a high-order terminal sliding-mode observer used for the anomaly detection in TCP/IP networks. It can track the fluid-flow model representing the TCP/IP behaviors in a router level. A smooth contro...
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this paper, the mechanism of valve electric actuator failures is analyzed, and the fault diagnosis method based on principle component analysis (PCA) and support vector machines (SVM) is put forward. In order to reduc...
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Human cognitive and psychological characteristics should be considered for design of user interfaces. In this study, the relationship between the sense of agency and the task performance was examined through an experi...
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this paper presents the design and testing of a 250 kW medium-speed Brushless Doubly-Fed Induction Generator (Brushless DFIG), and its associated power electronics and control systems. the experimental tests confirm t...
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ISBN:
(纸本)9781849196161
this paper presents the design and testing of a 250 kW medium-speed Brushless Doubly-Fed Induction Generator (Brushless DFIG), and its associated power electronics and control systems. the experimental tests confirm the design, and show the system's steady-state and dynamic performance. the medium-speed Brushless DFIG in combination with a simplified two-stage gearbox promises a low-cost low-maintenance and reliable drive train for wind turbine applications.
An active MOS diode for low voltage and low power RFID rectifiers is presented. the diode is based on the technique with internal threshold cancellation (ITC) for MOS diodes and uses a simple control scheme to minimiz...
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Current control is essential for torque *** available current controllers don't provide the required facilities for torque *** they produce a sluggish *** this paper we propose an embedded system based current con...
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Current control is essential for torque *** available current controllers don't provide the required facilities for torque *** they produce a sluggish *** this paper we propose an embedded system based current controlling method using the disturbance *** model of the DC motor is analyzed electrically and *** the proposed method is analyzed by introducing the concept of disturbance *** Time Operating System(RTOS) is used in the *** show the response current variation with and without the disturbance *** of the proposed method is verified by the results.
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