Hydro-electric combination drive friction type super capacitor mine hoist and control method thereof
A mine hoist and super capacitor technology, applied in elevators, mechanical equipment, sustainable buildings, etc., can solve the problems of large volume of cascaded high-voltage inverters, large throttling loss of valve control system, and loss of stored energy, etc. Improve system stability, extend service life, and improve the effect of service life
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Embodiment 1
[0036] Such as figure 1 As shown, the hydraulic-electric hybrid drive mine hoist I using a supercapacitor according to the present invention adopts a friction-type single-drum form, including a mine hoist reel 1, a lower sky wheel 32, an upper sky wheel 33, and a hoisting rope 34. Cage one 35, cage two 36, tail rope 37, gate control system 38, first coupling 2, speed reducer 3, rotational speed sensor 4, second coupling 5, lifting motor 6, it is characterized in that it also includes the third Coupling 39, first hydraulic pump / motor 7, hydraulic energy storage circuit 14, three-level inverter 19, filter capacitor 24, diode rectifier bridge 25, transformer 26, DC bus side voltage detection circuit 20, bidirectional DC / DC converter 23, supercapacitor side voltage detection circuit 21, supercapacitor group 22, controller 31; hoisting rope 34, cage one 35, cage two 36 are connected respectively, mine hoist reel 1 drives hoisting rope 34 by friction; The hoist drum 1 is connected...
Embodiment 2
[0050] Such as figure 2 As shown, the working principle and structural composition of Embodiment 2 are similar to those of Embodiment 1, the difference being that the third coupling 39 is replaced by an electromagnetic clutch 41, and the first two-position two-way solenoid valve 40 is removed.
[0051] The working process of embodiment 2 is similar to embodiment 1, and its difference is: in specific embodiment 1, when controller 31 controls the first two-position two-way solenoid valve 40 to close, control electromagnetic clutch 41 to disconnect by controller 31; At this time, the drive shaft of the first hydraulic pump / motor 7 is disconnected from the output shaft of the lifting motor 6, the first hydraulic pump / motor 7 stops working, and there is no energy flow in the hydraulic energy storage circuit 14; in specific embodiment 1, when the controller 31 controls when the first two-position two-way electromagnetic valve 40 is disconnected, and the specific embodiment 2 contro...
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