Hybrid modular multilevel railway power regulator and control method and system thereof
A modular multi-level, power regulator technology, applied in the direction of output power conversion device, AC power input conversion to AC power output, electrical components, etc., can solve the problems of poor economic benefit and high cost, and achieve cost reduction, Improve the modulation degree and improve the effect of RPC overmodulation
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[0025] Such as figure 1 , the hybrid modular multilevel railway power conditioner (HMMC-RPC) of the embodiment of the present invention includes 4 phase units (2 phase units on the rectification side and 2 phase units on the inverter side); , the lower two bridge arms through the bridge arm inductance T X1 , T X2 (X=A, B) in series, the midpoints AB and A′B′ of the bridge arms are respectively connected with the AC traction network alfa and beta power supply arms (the first power supply arm and the second power supply arm) on both sides; the upper and lower bridge arms Both are connected in series by F full-bridge sub-modules (FB) and (N-F) half-bridge sub-modules to realize multi-level output. Using the combination of half-bridge and full-bridge hybrid sub-modules, HMMC-RPC can realize over-modulation operation, and the range of modulation m is 0-2F / (N-F).
[0026] figure 2 It is the calculation schematic diagram of the HMMC-RPC compensation current command. The active c...
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