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首页> 外文期刊>Journal of Computers >Design, Simulate and Development of a Computer Controlled Three-Phase Inverter for Precise Speed Variation of a Three-Phase Induction Motor
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Design, Simulate and Development of a Computer Controlled Three-Phase Inverter for Precise Speed Variation of a Three-Phase Induction Motor

机译：计算机控制三相逆变器的设计，模拟和开发，用于三相感应电动机的精确速度变化

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—The speed of a three-phase induction motor can be varied within a wide range other than its rated value if its input parameters (frequency, voltages) are varied properly. For industrial, mainly in knitting and some other sophisticated use of three-phase induction motor, precise and accurate control of the speed of the motor is necessary. The present three-phase inverter is so designed that its input parameters can be easily varied through proper software program and computer interfacing hardware. N-channel MOSFET is used as power device but may be replaced with IGBT. A special one way delay circuit is introduced to ensure non short circuit situation. The input frequency to the inverter can be varied by varying the input voltage to the Voltage Controlled Oscillator (VCO). The proper input voltage to the inverter is set by Automatic Voltage Regulator (AVR) instructed by the computer. Though the frequency of the inverter can be varied between a wide range, the inter phase separation remains always 1200 yielding a true pattern of a three-phase power supply. Introduction of microcomputer and associate of software programs in three-phase induction motor control system as proposed is accurate and reliable in terms of accurate and complex speed control of the motor.
机译：- 如果其输入参数（频率，电压）正确变化，则三相感应电动机的速度可以在宽范围内变化。对于工业，主要是在针织和其他一些复杂的三相感应电动机使用，精确准确地控制电机的速度。本发明的三相逆变器设计了它的输入参数可以通过适当的软件程序和计算机接口硬件轻松改变。 N沟道MOSFET用作电源装置，但可以用IGBT替换。引入特殊的一种方式延迟电路以确保非短路情况。通过将输入电压改变到电压控制的振荡器（VCO），可以改变对逆变器的输入频率。逆变器的正确输入电压由计算机指示的自动电压调节器（AVR）设置。虽然逆变器的频率可以在宽范围之间变化，但是间隔晶间隔始终为1200，产生三相电源的真实模式。在三相感应电机控制系统中引入微型计算机和软件程序的关联，如提出的准确且复杂的电机速度控制的准确可靠。

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