Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Li Fahai"'
Autor:
Zhang Bitao, Li Fahai
Publikováno v:
Proceedings of the 2015 3d International Conference on Advanced Information and Communication Technology for Education.
With the rapid development of Universities running mode, the scale of fixed assets is growing increasingly and the assets become more complex and difficult day after day. Thus the management becomes harder and harder. How to analyze the problems duri
Autor:
Li Fahai
Publikováno v:
Proceedings of the 2015 3d International Conference on Advanced Information and Communication Technology for Education.
With highly attention paid to the transportation industry in our country and technology is widely used in automobile transport industry, the research which points out networking technology of automobile transportation industry can help reduce transpo
Publikováno v:
IEEE 2002 28th Annual Conference of the Industrial Electronics Society. IECON 02.
A new structure of the brushless DC motor with ripple-free torque performance is first proposed. The steady torque of the motor is guaranteed even if the shape of rotor magnet flux distribution is arbitrary. It adopts 180/spl deg/ square-wave current
Publikováno v:
IEEE 2002 28th Annual Conference of the Industrial Electronics Society. IECON 02.
This paper presents a new SVPWM control scheme for three-phase diode clamping multilevel inverters. First, it is proved that if the switch states are selected in a given mapping relation, the voltages of DC capacitors will be symmetrical. Voltage off
Publikováno v:
Proceedings of TENCON '93. IEEE Region 10 International Conference on Computers, Communications and Automation.
This paper presents a digital simulation technique to study a three phase cycloconverter loaded by RL, which is proven to be more flexible. The output voltage, current and their harmonics can be computed easily by this technique. The mathematical mod
Publikováno v:
Proceedings of TENCON '93. IEEE Region 10 International Conference on Computers, Communications and Automation.
One space vector PWM (SVPWM) method based on closed-loop stator flux control is presented. To realize the method, an all digital voltage source inverter motor system is proposed, in which 2 processors are utilized, one is Hitachi's H8/532 single chip
Autor:
Wang Chang-jiang, Li Fahai
Publikováno v:
Proceedings of the 1996 IEEE IECON. 22nd International Conference on Industrial Electronics, Control, and Instrumentation.
In this paper, some topics on the speed sensorless vector control of induction motors are studied, such as stator current control, state estimation, parameters identification, etc. For the features of the system, the following strategies are proposed
Publikováno v:
Proceedings of Intelec'96 - International Telecommunications Energy Conference.
This paper presents a novel soft-switching full-bridge (FB) PWM DC/DC converter. With an auxiliary resonant commutating network (ARCN), not only the four main power switches but also the secondary rectifier diodes can operate under zero-voltage switc
Publikováno v:
Proceedings of 1995 International Conference on Power Electronics and Drive Systems. PEDS 95.
The paper introduces a damper flux-oriented control method of synchronous machines, and develops a mathematical model of a synchronous motor with damper flux-oriented control. It is proved through theoretical analysis and experiments that a damper fl
Publikováno v:
ICEMS'2001. Proceedings of the Fifth International Conference on Electrical Machines and Systems (IEEE Cat. No.01EX501).
This paper presents the small signal linearization modeling and eigenvalue analysis of a doubly-fed induction motor vector control system. The analytic condition of stability is given and the results verified by simulation.