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The paper does not only provide the fundamental introduction of the working mechanism of the digital fiber drawing machine, but also achieves the automation control on the machine. Furthermore, this paper gives detailed discussions on the control system, hardware configuration and software design, and provides the I/O wiring diagram and the program design flow chart. The system design is quite reliable...
The device switching frequency is low and the output voltage fundamental frequency is high in high power middle frequency 400 Hz/115 V inverters, so the control bandwidth is limited and it is hard to promise a good waveform quality. The delay induced by the implementation of sampling, computing and PWM during digital control has bad impact on the system transient and steady state performances. In...
A new constant-frequency hysteresis current control algorithm for PV grid-connected inverter is proposed, in which the complex plane is divided into six sectors based on line voltage space vector of electric power grid, and two-phase switches are decoupled respectively in every sector to control corresponding line currents, and the hysteresis band is modified by prediction, so that the output current...
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