Control method and master controller for cascaded high-voltage frequency converters
A high-voltage inverter, main controller technology, applied in sequence/logic controller program control, electrical program control, etc., can solve the problems of difficult inverter maintenance, insufficient chassis space, poor compatibility, etc., and achieve high security and anti-interference ability, save chassis space, and achieve convenient effects
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[0032] like figure 1 As shown, a cascaded high-voltage inverter main controller includes two parts: the main control board plug-in and the peripheral auxiliary plug-in of the high-voltage inverter. The distributed design is adopted, and the main control board plug-in and the peripheral auxiliary plug-in are arranged outside the chassis. The main control board plug-in of the high-voltage frequency converter realizes control, data transmission and upper computer communication, and the peripheral auxiliary plug-in is used in conjunction with the peripheral auxiliary adapter plug-in to complete functions such as collection of various signals and driving of power electronic devices, among which the peripheral The auxiliary adapter plug-in completes the isolation and conversion of AC, DC and switch values.
[0033] The high-voltage frequency converter main control board plug-in is the core part of the controller. In addition to controlling the turn-on and turn-off of the high-power ...
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