Constant DC bus voltage permanent magnet generator set based on prime mover speed regulation
A permanent magnet generator and bus voltage technology, which is applied to the control of generators, electrical components, control systems, etc., can solve the problem of the large output voltage range of permanent magnet generators, the difficulty of maintaining a constant generator terminal voltage, and the difficulty of maintaining power generation Problems such as the output voltage of the machine, to achieve the effect of reducing power electronic devices, saving control costs, and simple structure
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[0034] figure 1 It is a schematic diagram of the permanent magnet generator set with constant DC bus voltage based on prime mover speed regulation, as shown in figure 1As shown, it consists of prime mover 1, permanent magnet generator 2, AC reactor 3, uncontrollable rectification module 4, DC reactor 5, pre-charging circuit 6, braking resistor 7, capacitor group 8, DC bus 9, voltage sensor PT, feedback coefficient 11, given voltage, PI regulator, fuel regulating mechanism, inverter 10 and various loads. The energy flow direction of the power supply system is: the prime mover 1 drives the permanent magnet generator 2 to rotate, wherein the prime mover 1 can be an internal combustion engine, a gas turbine, a water turbine, etc., and the three-phase alternating current generated by the permanent magnet generator 2 passes through the uncontrollable rectification module 3 Afterwards, it becomes a DC power supply, and the DC power supply supplies power to the load through the inver...
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