高分悬赏论文摘要翻译!
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发布时间：2022-04-22 20:40
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热心网友
时间：2023-04-29 13:13
Three-phase sine wave inverter power supply design
Abstract
After AC → DC → AC transform known as the inverter power inverter power source, which is different from the motor used for VVVF controller, but also different from the ordinary exchange of regulated power supply. The main function of the power inverter is to exchange the existing power grid frequency needed to transform into a stable power supply pure sine wave. Advanced countries will be increasingly used as a standard power inverter power supply in order to use electrical power supply to provide the best environment, to facilitate an objective assessment of technical performance using electrical appliances.
The main contents of this paper is: the use of hardware description language VHDL, in Xilinx's Spartan Ⅱ E series XC2S100E pq-208 FPGA chip to complete SPWM wave and wave PWM control signals, control of power electronic devices consisting of IGBT and MOSFET chopper, inverter output circuits, DC voltage regulator and SPWM AC output frequency. AD637 chip used on the output voltage, RMS current transform, transform ADC0809 evacuation by FPGA processing, real-time wave of SPWM amended to ensure the stability of the output voltage. 128 * 64 matrix LCD and keyboard to provide users with a friendly interface. After testing, the output voltage waveform is sinusoidal, the output frequency of 10Hz ~ 150Hz, topics beyond the requirements of 20Hz ~ 100Hz. Output line voltage of the error of the absolute value of less than 1% to the indicator. To measure and display power supply output voltage, current, frequency and power, with over-current protection, lack of protection of the load, load and over-voltage protection circuit outside asymmetry.
Completion of the design issues to achieve a deeper understanding of three-phase sine wave inverter power supply technology in the transformation technology, training analysis, creation, the ability to design, computer applications, as well as the ability to solve practical problems purpose. In order to engage in the future related to lay a foundation technology.
热心网友
时间：2023-04-29 13:13
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热心网友
时间：2023-04-29 13:14
难...估计等不到了 默哀
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