Motor speed-regulation system energy-saving controller based on super-capacitor energy storage and control method
A supercapacitor and motor speed regulation technology, applied in the direction of AC motor control, control system, electrical components, etc., can solve the problems of low operating efficiency of the motor speed regulation system, inability to effectively realize energy storage and reuse, and achieve storage and reuse, and improve operational efficiency
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[0022] Specific implementation mode one, combination figure 1 To explain this embodiment, the energy-saving controller for a motor speed control system based on super capacitor energy storage in this embodiment includes a diode rectifier bridge 1, a first DC filter capacitor 2, an inverter 3, and two-way DC / DC power Converter 5 and super capacitor module 6,
[0023] The bidirectional DC / DC power converter 5 includes a second DC filter capacitor 7, an n-weight IGBT bridge circuit 8 and n filter inductors 9, wherein the n filter inductors include the first filter inductor L 1 , The second filter inductor L 2 …The nth filter inductor Ln, n is a positive integer, DC bus voltage detection circuit 10, super capacitor voltage detection circuit 11, current detection circuit 12, A / D converter 13, DSP controller 14 and FPGA15,
[0024] The three-phase AC input end of the diode rectifier bridge 1 is connected to the three-phase power grid, the output end of the diode rectifier bridge 1 is a DC...
Example Embodiment
[0034] The second embodiment is different from the energy-saving controller of the motor speed regulation system based on super capacitor energy storage described in the first embodiment in that the n-weight IGBT bridge circuit 8 includes 2n full control circuits 16, n As a positive integer, two full control circuits 16 are connected to form a bridge arm, and the midpoint of each bridge arm is connected to a filter inductor L k , Where k=1~n, k is a positive integer;
[0035] Each of the full control circuits 16 includes IGBT T 1 And diode D 1 , IGBT T 1 The collector is connected to diode D 1 Cathode, IGBT T 1 The emitter is connected to diode D 1 Of the anode.
[0036] In this embodiment, each IGBT and each diode are connected in anti-parallel.
Example Embodiment
[0037] The third embodiment is different from the energy-saving controller of the motor speed regulation system based on super capacitor energy storage described in the first embodiment in that the super capacitor module 6 includes two groups of capacitor groups and the two groups of capacitor groups are connected in parallel. Each of the capacitor groups is composed of multiple capacitors connected in series.
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