CN113241879A - Water-cooling permanent magnet digital generator - Google Patents

Water-cooling permanent magnet digital generator Download PDF

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Publication number
CN113241879A
CN113241879A CN202110070425.XA CN202110070425A CN113241879A CN 113241879 A CN113241879 A CN 113241879A CN 202110070425 A CN202110070425 A CN 202110070425A CN 113241879 A CN113241879 A CN 113241879A
Authority
CN
China
Prior art keywords
generator
water
rotor
permanent magnet
stator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110070425.XA
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Chinese (zh)
Inventor
陈兰生
郭俊杰
张青
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujian 1stall Power Supply Technology Co ltd
Original Assignee
Fujian 1stall Power Supply Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujian 1stall Power Supply Technology Co ltd filed Critical Fujian 1stall Power Supply Technology Co ltd
Priority to CN202110070425.XA priority Critical patent/CN113241879A/en
Publication of CN113241879A publication Critical patent/CN113241879A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/02—Details of the magnetic circuit characterised by the magnetic material
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/02—Additional mass for increasing inertia, e.g. flywheels
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin

Abstract

The invention provides a water-cooling permanent magnet digital generator, which takes a prime mover connected with the generator as a power source for generating electricity, wherein the generator comprises a stator and a rotor; the flywheel of the prime motor drives the rotor of the generator to rotate so as to enable the generator to output electric energy; the invention adopts a structure without a fan and a bearing, reduces the wind mill loss and improves the power generation efficiency.

Description

Water-cooling permanent magnet digital generator
Technical Field
The invention relates to the technical field of generators, in particular to a water-cooling permanent magnet digital generator.
Background
When the traditional generator is connected with a prime motor, a complex connecting mechanism is needed, so that wind mill loss can be generated when the generator operates, and the generating efficiency is reduced.
Disclosure of Invention
The invention provides a water-cooling permanent magnet digital generator which adopts a structure without a fan and a bearing, reduces the wind mill loss and improves the power generation efficiency.
The invention adopts the following technical scheme.
The water-cooling permanent magnet digital generator takes a prime motor connected with the water-cooling permanent magnet digital generator as a power source for generating electricity, the generator comprises a stator (3) and a rotor (1), when the generator works, a flywheel shell of the prime motor is connected with the stator of the generator, and a flywheel of the prime motor is connected with the rotor of the generator and supports the rotor of the generator; the prime mover flywheel drives the generator rotor to rotate so that the generator outputs electrical energy.
A bearing supporting structure is not arranged between a stator and a rotor of the generator; the generator has no fan.
The stator of the generator is connected with the flywheel housing of the prime mover by a standard SAE interface (103); the rotor of the generator is connected to the flywheel of the prime mover with a standard SAE interface (103).
The generator further comprises a casing (2); the housing comprises an internal cooling water circuit (6); a waterway interface (9) communicated with the cooling waterway is arranged on the wall of the machine shell; the cooling water path can radiate heat of a stator and a rotor of the generator.
A plurality of groups of water inlets and water outlets in different directions are arranged at the waterway interface; when the generator works, water which can radiate the generator is input into the cooling water channel from the water inlet, and the water in the cooling water channel can be discharged from the water outlet.
The rotor of the generator comprises a high-temperature-resistant and high-magnetic-energy-product strong magnetic steel structure (4); the winding of the generator is arranged at the stator; and a wire outlet channel (8) is arranged at the rear cover of the shell, and a winding lead-out wire of the stator is led out through the wire outlet channel.
The winding outgoing line is connected with an external inverter to output electric energy; the inverter performs constant-frequency and constant-voltage processing on the electric energy output by the generator so as to expand the working rotating speed range of the generator.
The wire outlet channel is a wire outlet coil; after the packing sealing treatment is carried out on the coil, the protection grade of the generator reaches IP 44.
The prime motor can adjust the rotation speed of the prime motor to enable the generator to achieve the technical index of energy conservation and noise reduction.
The inverter is an AC-DC-AC inverter; the rotor of the generator is a multi-pole rotor, and when the generator works, the stator of the generator outputs high-frequency medium-frequency electricity.
The invention has the following advantages:
1) the rotor of the invention adopts strong magnetic steel with high magnetic energy product to form a magnetic field for electromechanical energy conversion, and the generator has electric energy output at any rotating speed from low speed to high speed under the dragging of the prime mover, so that the rotating speed of the prime mover can be adjusted according to the size of the load. Thereby improving the energy conversion efficiency of the prime mover.
2) The strong magnetic steel with high magnetic energy product is used as the magnetic field for electromechanical energy conversion, the excitation loss of the traditional electric excitation generator is avoided, and the efficiency is improved.
3) The special structure without fan and bearing greatly reduces the windmilling loss of the generator during operation and improves the generating efficiency.
The invention adopts a structure without fan and bearing, so that the invention can be used as a water-cooled generator with compact volume, is used in narrow space, and has the advantages of simple structure, small volume, high efficiency, no maintenance and the like.
Drawings
The invention is described in further detail below with reference to the following figures and detailed description:
FIG. 1 is a schematic of the present invention;
FIG. 2 is a cut-away schematic view of the present invention;
FIG. 3 is another cut-away schematic view of the present invention;
FIG. 4 is a schematic view of the present invention at the rear cover;
in the figure: 1-a rotor; 2-a housing; 3-a stator; 4-strong magnetic steel structure; 5-hoisting rings; 6-a cooling water circuit; 7-rear cover; 8-a wire outlet channel; 9-waterway interface;
101-a water inlet; 102-a water outlet; 103-SAE interface.
Detailed Description
As shown in the figure, the water-cooled permanent magnet digital generator takes a prime mover connected with the water-cooled permanent magnet digital generator as a power source for generating electricity, the generator comprises a stator 3 and a rotor 1, when the generator works, a flywheel shell of the prime mover is connected with the stator of the generator, and a flywheel of the prime mover is connected with the rotor of the generator and supports the rotor of the generator; the prime mover flywheel drives the generator rotor to rotate so that the generator outputs electrical energy.
A bearing supporting structure is not arranged between a stator and a rotor of the generator; the generator has no fan.
The stator of the generator is connected with the flywheel shell of the prime mover by a standard SAE interface 103; the rotor of the generator is connected to the flywheel of the prime mover with a standard SAE interface 103.
The generator further comprises a housing 2; the cabinet includes an internal cooling water circuit 6; a waterway interface 9 communicated with a cooling waterway is arranged at the wall of the machine shell; the cooling water path can radiate heat of a stator and a rotor of the generator.
A plurality of groups of water inlets and water outlets in different directions are arranged at the waterway interface; when the generator works, water which can radiate the generator is input into the cooling water channel from the water inlet, and the water in the cooling water channel can be discharged from the water outlet.
The rotor of the generator comprises a high-temperature-resistant and high-magnetic-energy-product strong magnetic steel structure 4; the winding of the generator is arranged at the stator; and a wire outlet channel 8 is arranged at the rear cover of the shell, and a winding lead-out wire of the stator is led out through the wire outlet channel.
The winding outgoing line is connected with an external inverter to output electric energy; the inverter performs constant-frequency and constant-voltage processing on the electric energy output by the generator so as to expand the working rotating speed range of the generator.
The wire outlet channel is a wire outlet coil; after the packing sealing treatment is carried out on the coil, the protection grade of the generator reaches IP 44.
The prime motor can adjust the rotation speed of the prime motor to enable the generator to achieve the technical index of energy conservation and noise reduction.
The inverter is an AC-DC-AC inverter; the rotor of the generator is a multi-pole rotor, and when the generator works, the stator of the generator outputs high-frequency medium-frequency electricity.
Example (b):
in this example, the generator is hoisted and transported to the prime mover by the hoisting ring 5, and is directly buckled at the power output shaft of the prime mover and is connected and fixed with the prime mover, the stator and the rotor of the generator are respectively and directly connected with the flywheel housing and the flywheel of the prime mover, the multipole rotor of the generator is dragged by the high-speed prime mover to output medium-frequency electricity with higher frequency, and then the medium-frequency electricity is processed by the AC-DC-AC inverter, and finally the constant-frequency and constant-voltage electric energy is output to the electric equipment.

Claims (10)

1. The water-cooling permanent magnet digital generator takes a prime motor connected with the water-cooling permanent magnet digital generator as a power source for power generation operation, and is characterized in that: the generator comprises a stator (3) and a rotor (1), when the generator works, a flywheel shell of a prime motor is connected with the stator of the generator, and a flywheel of the prime motor is connected with the rotor of the generator and supports the rotor of the generator; the prime mover flywheel drives the generator rotor to rotate so that the generator outputs electrical energy.
2. The water-cooled permanent magnet digital generator according to claim 1, wherein: a bearing supporting structure is not arranged between a stator and a rotor of the generator; the generator has no fan.
3. The water-cooled permanent magnet digital generator according to claim 1, wherein: the stator of the generator is connected with a flywheel shell of the prime mover through a standard SAE interface; the rotor of the generator is connected to the flywheel of the prime mover with a standard SAE interface.
4. The water-cooled permanent magnet digital generator according to claim 1, wherein: the generator further comprises a casing (2); the housing comprises an internal cooling water circuit (6); a waterway interface (9) communicated with the cooling waterway is arranged on the wall of the machine shell; the cooling water path can radiate heat of a stator and a rotor of the generator.
5. The water-cooled permanent magnet digital generator according to claim 4, wherein: a plurality of groups of water inlets and water outlets in different directions are arranged at the waterway interface; when the generator works, water which can radiate the generator is input into the cooling water channel from the water inlet, and the water in the cooling water channel can be discharged from the water outlet.
6. The water-cooled permanent magnet digital generator according to claim 4, wherein: the rotor of the generator comprises a high-temperature-resistant and high-magnetic-energy-product strong magnetic steel structure; the winding of the generator is arranged at the stator; and a wire outlet channel (8) is arranged at the rear cover of the shell, and a winding lead-out wire of the stator is led out through the wire outlet channel.
7. The water-cooled permanent magnet digital generator according to claim 6, wherein: the winding outgoing line is connected with an external inverter to output electric energy; the inverter performs constant-frequency and constant-voltage processing on the electric energy output by the generator so as to expand the working rotating speed range of the generator.
8. The water-cooled permanent magnet digital generator according to claim 6, wherein: the wire outlet channel is a wire outlet coil; after the packing sealing treatment is carried out on the coil, the protection grade of the generator reaches IP 44.
9. The water-cooled permanent magnet digital generator according to claim 7, wherein: the prime motor can adjust the rotation speed of the prime motor to enable the generator to achieve the technical index of energy conservation and noise reduction.
10. The water-cooled permanent magnet digital generator according to claim 7, wherein: the inverter is an AC-DC-AC inverter; the rotor of the generator is a multi-pole rotor, and when the generator works, the stator of the generator outputs high-frequency medium-frequency electricity.
CN202110070425.XA 2021-01-19 2021-01-19 Water-cooling permanent magnet digital generator Pending CN113241879A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110070425.XA CN113241879A (en) 2021-01-19 2021-01-19 Water-cooling permanent magnet digital generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110070425.XA CN113241879A (en) 2021-01-19 2021-01-19 Water-cooling permanent magnet digital generator

Publications (1)

Publication Number Publication Date
CN113241879A true CN113241879A (en) 2021-08-10

Family

ID=77130059

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110070425.XA Pending CN113241879A (en) 2021-01-19 2021-01-19 Water-cooling permanent magnet digital generator

Country Status (1)

Country Link
CN (1) CN113241879A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002315258A (en) * 2001-04-13 2002-10-25 Rikogaku Shinkokai Bearingless rotating machine and generator, blower and pump using the same
CN1790878A (en) * 2005-12-20 2006-06-21 泰豪科技股份有限公司 Generator without bearing
CN201344102Y (en) * 2009-02-23 2009-11-11 东南大学 Wind-power generator
CN202395603U (en) * 2011-12-27 2012-08-22 福建亚南电机有限公司 Novel structure of bearingless permanent magnet generator
CN104485863A (en) * 2014-12-03 2015-04-01 沈阳工业大学 High-fault-tolerance power supply method in which all branches of electric generator operate independently
CN107565727A (en) * 2016-06-30 2018-01-09 宁玉泉 Variable-ratio oil-electric engine group variable speed constant frequency alternating current-direct current salient-pole synchronous generator group
CN209488337U (en) * 2017-10-18 2019-10-11 重庆交通职业学院 A kind of minitype permanent magnetism intermediate frequency liquid-cooled motor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002315258A (en) * 2001-04-13 2002-10-25 Rikogaku Shinkokai Bearingless rotating machine and generator, blower and pump using the same
CN1790878A (en) * 2005-12-20 2006-06-21 泰豪科技股份有限公司 Generator without bearing
CN201344102Y (en) * 2009-02-23 2009-11-11 东南大学 Wind-power generator
CN202395603U (en) * 2011-12-27 2012-08-22 福建亚南电机有限公司 Novel structure of bearingless permanent magnet generator
CN104485863A (en) * 2014-12-03 2015-04-01 沈阳工业大学 High-fault-tolerance power supply method in which all branches of electric generator operate independently
CN107565727A (en) * 2016-06-30 2018-01-09 宁玉泉 Variable-ratio oil-electric engine group variable speed constant frequency alternating current-direct current salient-pole synchronous generator group
CN209488337U (en) * 2017-10-18 2019-10-11 重庆交通职业学院 A kind of minitype permanent magnetism intermediate frequency liquid-cooled motor

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Application publication date: 20210810