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Hyper-synchronous speed control device of macrotype impulse flywheel generator set

A technology of generator set and speed regulating device, which is applied in the direction of controlling generator, motor generator control, controlling electromechanical transmission device, etc., can solve the problems such as the difference in energy release of one pulse

Inactive Publication Date: 2009-02-18
SOUTHWESTERN INST OF PHYSICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the synchronous speed of each generator set is 1500rpm, and the moment of inertia of the shaft system is 287 tons·m 2 , the maximum mechanical energy storage is 862MJ, the speed drop range is 1480-1200rpm during discharge, and the maximum energy release of a pulse discharge is only 295MJ, which is far from the required pulse release energy of 500MJ for each generator set

Method used

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  • Hyper-synchronous speed control device of macrotype impulse flywheel generator set
  • Hyper-synchronous speed control device of macrotype impulse flywheel generator set
  • Hyper-synchronous speed control device of macrotype impulse flywheel generator set

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Embodiment Construction

[0014] Such as figure 1 As shown, each pulse generator set is connected by a 2500kW wound asynchronous motor 16, a flywheel 28 with a weight of 88 tons and an 80MVA pulse generator 29 through a coupling, and an incremental encoder 26 is installed on the 2500kW wound motor. non-drive end. The stator winding of the asynchronous motor 16 is connected to the 6000v power grid 18 through the vacuum circuit breaker 17, and the three-phase full-control bridge AC AC cycle converter 20 and the slip regulator water resistance 21 respectively pass through the first ME circuit breaker 22 and the second ME The circuit breaker 23 is connected to the rotor circuit of the asynchronous motor. The cycloconverter 20 is connected to the 6000V power grid 18 through a four-winding rectifying transformer 24 and a vacuum circuit breaker 25 in sequence. In order to suppress the output current harmonics of the cyclo-converter 20, a three-phase smoothing reactor 27 is installed on its output side.

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Abstract

The present invention belongs to a hyper-synchronous speed-regulating device, particularly relates to a hyper-synchronous speed-regulating device for large-sized pulse flywheel generator set. the invention can improve the highest operation revolution speed of the generator set to 110 percent of the synchronous revolution speed, primary pulse discharge energy-releasing is improved by 70 percents, which arrives to the request of HL-2A Tokomak device for developing physical experiment under the high parameter pulse discharge condition. impact fly-connection control of the large-sized pulse generator set to the system is implemented during the pulse discharge energy-releasing process and when switching the motor rotor loops, and influence of the winding temperature ascend and each bearing block vibration is smaller totally when the generator set running in a hyper-synchronous speed. The apparatus can be used for metallurgy, energy sources, pumped storage power station and the like, which require hyper-synchronous speed-regulating control to the utility-type set.

Description

technical field [0001] The invention belongs to a supersynchronous speed regulating device, in particular to a supersynchronous speed regulating device of a large-scale pulse flywheel generating set. Background technique [0002] In the pulse power supply system of the HL-2A Tokamak device, two 80MVA large-scale pulse generator sets jointly supply power to the HL-2A toroidal field coil through rectification equipment. The design value of the hoop field system is a maximum hoop magnetic field of 2.8 Tesla, a maximum coil current of 45kA, a flat-top time of 3-5 seconds, and a maximum full-load repetition rate of 20 minutes / time. In order to enable the HL-2A device to carry out physical experiments under high parameter conditions, it is required that each pulse generator set must have the condition of a pulse discharge energy release of 500MJ. However, the synchronous speed of each generator set is 1500rpm, and the moment of inertia of the shaft system is 287 tons·m 2 , the m...

Claims

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Application Information

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IPC IPC(8): H02P21/00H02P9/00
Inventor 李华俊杜沧宣伟民彭建飞胡浩天谢仑刘伶王树锦康利徐丽荣黄昭荣王小平杨国冀李志建
Owner SOUTHWESTERN INST OF PHYSICS