Nuclear power plant control rod driving mechanism power generator and stator winding thereof

A generator stator and drive mechanism technology, which is applied in the field of electrical research of nuclear power plant reactors, can solve the problems of large harmonic magnetic field and complicated end connection of generators, so as to reduce the total harmonic magnetic field, save copper consumption, and reduce harmonics The effect of the magnetic field

Inactive Publication Date: 2017-04-26
NUCLEAR POWER INSTITUTE OF CHINA
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0006] The invention provides a power generator for a control rod driving mechanism of a nuclear power plant and its stator winding, which solves the technical problems of relatively large generator harmonic magnetic field and complicated end connections in the existing stator winding of a power generator for a control rod driving mechanism of a nuclear power plant , to achieve the technical effect of reducing the total harmonic field and stator copper loss and simplifying the end connection

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  • Nuclear power plant control rod driving mechanism power generator and stator winding thereof
  • Nuclear power plant control rod driving mechanism power generator and stator winding thereof
  • Nuclear power plant control rod driving mechanism power generator and stator winding thereof

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Embodiment 1

[0046] In the first embodiment, a stator winding of a power generator of a control rod drive mechanism of a nuclear power plant is provided. The stator winding of the generator is a three-phase double-layer winding, and the stator winding of the generator adopts a star connection mode. The coil pitch of the stator winding of the generator is Among them, τ is the polar distance.

[0047] Among them, in the embodiment of the present application, the arrangement of each coil on the circumference of the stator satisfies the three-phase symmetry of the double-layer winding, and the spatial distribution of the phase winding is as close as possible to a sine wave, and the total harmonic component of the magnetic potential is the smallest.

[0048] The embodiment of the present application also provides a power generator for a control rod drive mechanism of a nuclear power plant, and the stator winding in the generator is the above-mentioned stator winding.

[0049] Wherein, in the e...

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Abstract

The invention discloses a nuclear power plant control rod driving mechanism power generator and a stator winding thereof. The generator stator winding is a three-phase double-layer winding. The generator stator winding adopts a star-connection mode; the generator stator winding coil pitch y=(2 / 3)[tau]; arrangement of each coil on stator circumference meets double-layer winding three-phase symmetry, and phase winding space distribution is close to a sine wave to the greatest extent, and a total harmonic component of magnetic potential is allowed to be minimum; and generator harmonic magnetic field is further reduced, end connection is simplified, loss is reduced, voltage waveform is improved, and unit efficiency and performance are improved.

Description

technical field [0001] The invention relates to the electrical research field of a nuclear power plant reactor, in particular to a power generator of a control rod drive mechanism of a nuclear power plant and a stator winding thereof. Background technique [0002] In the current second-generation plus, Hualong One and AP1000 third-generation nuclear power designs, the CRDM power supply system is generally designed as two sets of motor generators connected in parallel to supply power to the drive coil through three-phase half-wave rectification, and the stator winding of the generator adopts a meandering star shape. Connect to eliminate the magnetic field generated by direct current and multiple harmonic currents of 3, and at the same time choose 5 / 6 coil pitch and use distributed winding to weaken 6k±1 (k is a positive integer) sub-space harmonics. [0003] However, the ability of evenly distributed windings with a certain pitch to weaken space harmonics is limited, and the ...

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Application Information

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IPC IPC(8): H02K3/28
CPCH02K3/28H02K2213/03
Inventor高永韩勇刘飞洋刘文静游洲李朋
OwnerNUCLEAR POWER INSTITUTE OF CHINA