WO2023243763A1 - Turbogénérateur ayant une turbine et un rotor combinés de générateur - Google Patents

Turbogénérateur ayant une turbine et un rotor combinés de générateur Download PDF

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Publication number
WO2023243763A1
WO2023243763A1 PCT/KR2022/012009 KR2022012009W WO2023243763A1 WO 2023243763 A1 WO2023243763 A1 WO 2023243763A1 KR 2022012009 W KR2022012009 W KR 2022012009W WO 2023243763 A1 WO2023243763 A1 WO 2023243763A1
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WO
WIPO (PCT)
Prior art keywords
turbine
generator
turbine rotor
rotor
working fluid
Prior art date
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PCT/KR2022/012009
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English (en)
Korean (ko)
Inventor
서종범
김현주
이호생
김세규
문정현
임승택
Original Assignee
한국해양과학기술원
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Publication of WO2023243763A1 publication Critical patent/WO2023243763A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
    • F01D15/10—Adaptations for driving, or combinations with, electric generators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
    • 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
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • 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
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators
    • H02K7/1823—Rotary generators structurally associated with turbines or similar engines

Definitions

  • the embodiment relates to a turbo generator in which a turbine and a generator rotor are combined, and more specifically, to a turbo generator in which a turbine and a generator rotor are combined, applicable to an organic Rankine cycle turbine generator.
  • the Organic Rankine Cycle is a power generation system that produces electricity using unused heat energy without using fuel.
  • ORC Organic Rankine Cycle
  • this is a power generation system that produces electricity using waste heat discarded from internal combustion engines and industrial processes.
  • Eco-friendly energy sources such as solar power or geothermal heat, waste heat from ships, and unused energy from various industries such as waste incinerators serve as heat sources for the organic Rankine cycle.
  • Domestic Publication Patent No. 10-2015-0029134 discloses a waste heat source supply unit that recovers and supplies waste heat sources generated from ships, a first line through which heat medium recovered from the waste heat source supply unit flows, and A first ORC unit including a first heat exchanger that recovers heat of the heat medium while the heat medium flows, a second line connected to the first heat exchanger, a second ORC unit including a second heat exchanger connected to the second line, and the first ORC unit.
  • a technology related to a system including a line and a bypass line connected to at least one of the second lines is disclosed.
  • domestically registered patent No. 10-0969682 relates to a direct-driven electric device.
  • a direct-driven electric device costs can be reduced by maximizing force density and minimizing active materials.
  • the inactive material of inactive components can be significantly reduced, and the stator and rotor are separated into multiple modules.
  • the technical problem to be achieved by the present invention is to provide a turbo generator in which a turbine and a generator rotor are combined, which can be applied to an inward semi-radius flow turbine having a symmetrical structure.
  • a rotating shaft a pair of turbine rotor blades arranged symmetrically to each other along the longitudinal direction of the rotation axis;
  • a turbine rotor disposed between the pair of turbine rotor blades so as to be able to rotate with the rotation shaft, and including a magnetic material that generates an induced current according to the rotation, and surrounding the turbine rotor, and a generator stator coil on its inner peripheral surface.
  • This winding provides a turbo generator in which the rotor of the generator and a turbine including a generator stator in which a plurality of coil windings are formed are combined.
  • the magnetic material may include a generator rotor in the form of a permanent magnet or an electromagnet.
  • the permanent magnets may be arranged to extend on both sides along the longitudinal direction of the rotation axis based on a virtual central axis between the pair of turbine rotor blades.
  • the permanent magnets or the generator rotor may be arranged symmetrically with respect to the virtual central axis.
  • the generator rotor may be a squirrel cage induction generator including a copper rod.
  • the turbine rotors may be arranged symmetrically with respect to a virtual central axis between the pair of turbine rotor blades.
  • It may further include at least one of a nozzle and a volute disposed outside the turbine rotor blade to change the direction of movement of the working fluid.
  • the present invention can be applied to an inward-facing semi-radius flow turbine, which is a turbo generator in which the turbine and the rotor of the generator are combined and has a symmetrical structure.
  • stator and rotor of the turbo generator can be simplified and miniaturized.
  • Figure 1 is a diagram for explaining a turbo generator in which a turbine and a generator rotor are combined according to an embodiment.
  • Figure 2 is a diagram for explaining a turbo generator in which a turbine and a generator rotor are combined according to another embodiment.
  • Figure 3 is a diagram for explaining a turbo generator in which a turbine and a generator rotor are combined according to another embodiment.
  • Figure 4 is a diagram for explaining a turbo generator in which a turbine and a generator rotor are combined according to another embodiment.
  • the technical idea of the present invention is not limited to some of the described embodiments, but may be implemented in various different forms, and as long as it is within the scope of the technical idea of the present invention, one or more of the components may be optionally used between the embodiments. It can be used by combining and replacing.
  • first, second, A, B, (a), and (b) may be used.
  • a component when a component is described as being 'connected', 'coupled' or 'connected' to another component, the component is not only directly connected, coupled or connected to that other component, but also is connected to that component. It can also include cases where other components are 'connected', 'combined', or 'connected' due to another component between them.
  • “above” or “below” refers not only to cases where two components are in direct contact with each other, but also to one This also includes cases where another component described above is formed or placed between two components.
  • “top (above) or bottom (bottom)” it may include not only the upward direction but also the downward direction based on one component.
  • Figure 1 is a diagram for explaining a turbo generator in which a turbine and a generator rotor are combined according to an embodiment.
  • the turbo generator 100 includes a rotation shaft 110, a turbine rotor blade 120, and a turbine rotor 130. ), a turbine rotor body (131), a permanent magnet (132), a generator stator (140), and a turbine nozzle (150).
  • a radial flow turbine applied to the turbo generator 100 is a type in which a working fluid such as steam or gas flows in the radial direction in a plane perpendicular to the rotation axis to rotate the turbine rotor blade 120. It can mean the turbine of .
  • These radial flow turbines can be divided into outward radial flow turbines (radial outflow turbine) and inward radial flow turbines (radial inflow turbine). In the outward radial flow turbine, steam or gas enters the center and flows in the radial direction, and in the inward radial flow turbine, steam or gas flows inward from the outer circumference in the radial direction to drive the turbine rotor blade 120.
  • the working fluid may flow into the turbine rotor blade 120 in the radial direction through at least one of a volute and a nozzle, and flows inward along the rotation axis (shaft) of the inward radial flow turbine. It may flow in the direction of the diffuser of the radial flow turbine.
  • the working fluid is difluoromethane, commonly called R32, has a very low evaporation temperature with a melting point of -136 degrees and a boiling point of -51.6 degrees, and has an ASHRAE classification of A2L, which has a slight flammability property.
  • the working fluid to which R32 is applied is applied as an eco-friendly refrigerant with a GWP of 675 and an ODP of 0. It has excellent physical properties such as thermal conductivity, so power generation efficiency is high, and the overall plant volume is small as it is a high-pressure refrigerant.
  • the working fluid can be replaced with any one of refrigerants such as R245fa, R717, R1234yf, and R1234ze as well as R32.
  • refrigerants such as R245fa, R717, R1234yf, and R1234ze as well as R32.
  • the working fluid may flow in the radial direction through the turbine nozzle 150, where the fluid flows inward including the hub, rotation shaft 110, and turbine rotor blade 120 of the turbine rotor 130. Radial flow may flow into the turbine rotor 130. In this case, the energy of the working fluid may be converted into rotational energy by the turbine rotor blades 120 arranged on the hub of the turbine rotor 130 and transmitted to the rotation shaft 110. Thereafter, the working fluid may be discharged along the rotation axis 110 in the direction where the diffuser is located.
  • the turbine rotor blades 120 may be arranged symmetrically to each other along the longitudinal direction of the rotation axis 110.
  • a pair of turbine rotor blades 120 may be provided on the outer surface of the rotation shaft 110.
  • the turbine outlets of the turbine rotor blades 120 may be arranged in opposite directions, and the turbine rotor blades 120, which are mutually symmetrical, are arranged in opposite directions to reduce axial force (thrust force). It can be provided as much as possible.
  • a pair of turbine rotor blades 120 may be of the same size to effectively offset the axial load. This is based on the assumption that the flow rate and pressure gradient of the working fluid flowing into each turbine rotor blade 120 are the same. If the flow rate and pressure gradient of the working fluid flowing into each turbine rotor blade 120 are different, the turbine rotor blades 120 can generate an axle load of the same size. It may also be considered to provide different sizes of the rotor blades 120.
  • the turbine rotor 130 is disposed between the pair of turbine rotor blades 120 so that it can rotate with the rotation shaft 110, and may include a permanent magnet 132 that provides magnetism.
  • a turbine rotor 130 is provided on the outer peripheral surface of the rotation shaft 110, and the turbine rotor 130 may be disposed between a pair of turbine rotor blades 120 so as to rotate together with the rotation shaft 110.
  • the turbine rotor 130 is provided on the outer peripheral surface of the rotation shaft 110 and rotates together with the rotation shaft 110, and may be provided with a permanent magnet 132 at a position maintaining a predetermined distance from the stator 140.
  • the permanent magnets 132 may be arranged to extend on both sides along the longitudinal direction of the rotation axis 110 based on the virtual central axis between the pair of turbine rotor blades 120.
  • the permanent magnets 132 may be arranged symmetrically with respect to the virtual central axis. That is, the permanent magnets 132 may be arranged in a symmetrical shape with the same volume and cross-section based on the virtual central axis.
  • a rim and a connection part connecting the rim with the turbine rotor body 131 may be provided on the upper side of the permanent magnet 132, and the rim is in contact with the fluid of the generator stator 140 and moves in the axial and radial directions of the axis. It can support static and dynamic loads.
  • the support fluid may be the same as the turbine's working fluid, and if different, the seal 141 assembled to the generator stator 140 can prevent the working fluid from leaking and the two fluids from mixing.
  • the generator stator 140 surrounds the turbine rotor 130, and a plurality of coil winding portions around which stator coils are wound may be formed on its inner peripheral surface.
  • the coil winding unit can produce electricity according to changes in the magnetic field.
  • the generator stator 140 is provided to be spaced apart from the turbine rotor 130 and is formed in a cylindrical shape surrounding the turbine rotor 130.
  • the permanent magnet 132 rotates and an induced current is applied to the coil winding to generate electricity.
  • the load of the turbine rotor 130 can be supported by the fluid of the stator 140, and if necessary, an auxiliary bearing such as a mechanical bearing can be applied.
  • the turbine nozzle 150 is disposed outside the turbine and can change the direction of movement of the working fluid.
  • the turbine nozzle 150 is located in front of the turbine rotor blade 120 and may serve to change the direction of movement of the working fluid so that the turbine rotor blade 120 can operate smoothly.
  • the turbo generator 100 may include a rotating shaft 110, a turbine rotor blade 120, a turbine rotor 130, a generator stator 140, and a turbine nozzle 150. .
  • the working fluid may flow in a radial direction through the turbine nozzle 150, where the fluid flows into an inward radius including the turbine rotor body 131, the rotation axis 110, and the turbine rotor blade 120. It may flow into the turbine rotor 130 of the current turbine.
  • the energy of the working fluid may be converted into rotational energy by the turbine rotor blades 120 arranged on the turbine rotor body 131 and transmitted to the rotation shaft 110. Thereafter, the working fluid may be discharged along the rotation axis 110 in the direction where the diffuser is located.
  • the turbine rotor blades 120 may be arranged symmetrically to each other along the longitudinal direction of the rotation axis 110.
  • a pair of turbine rotor blades 120 may be provided on the outer surface of the rotation shaft 110.
  • the turbine outlets of the turbine rotor blades 120 may be arranged in opposite directions, and the turbine rotor blades 120, which are mutually symmetrical to reduce axial force, may be arranged to operate in opposite directions. there is.
  • a pair of turbine rotor blades 120 may be of the same size to effectively offset the axial load. This is based on the assumption that the flow rate and pressure gradient of the working fluid flowing into each turbine rotor blade 120 are the same. If the flow rate and pressure gradient of the working fluid flowing into each turbine rotor blade 120 are different, the turbine rotor blades 120 can generate an axle load of the same size. It may also be considered to provide different sizes of the rotor blades 120.
  • the turbine rotor 130 is disposed between the pair of turbine rotor blades 120 so that it can rotate with the rotation shaft 110, and may include a permanent magnet 132 that provides magnetism.
  • a turbine rotor 130 is provided on the outer peripheral surface of the rotation shaft 110, and the turbine rotor 130 may be disposed between a pair of turbine rotor blades 120 so as to rotate together with the rotation shaft 110.
  • the turbine rotor 130 is provided on the outer peripheral surface of the rotation shaft 110 and rotates together with the rotation shaft 110, and may be provided with a permanent magnet 132 at a position maintaining a predetermined distance from the generator stator 140.
  • the permanent magnets 132 may be arranged to extend on both sides along the longitudinal direction of the rotation axis 110 based on the virtual central axis between the pair of turbine rotor blades 120.
  • the permanent magnets 132 may be arranged symmetrically with respect to the virtual central axis. That is, the permanent magnets 132 may be arranged in a symmetrical shape with the same volume and cross-section based on the virtual central axis.
  • a rim and a connection part connecting the rim with the turbine rotor body 131 may be provided on the upper side of the permanent magnet 132, and the rim is in contact with the fluid of the generator stator 140 and moves in the axial and radial directions of the axis. It can support static and dynamic loads.
  • the support fluid may be the same as the turbine's working fluid, and if different, the seal 141 assembled to the generator stator 140 can prevent the working fluid from leaking and the two fluids from mixing.
  • connection where the turbine rotor blade and the rim are connected can be type I to minimize weight, or type II to respond to the force applied to the connection.
  • the generator stator 140 surrounds the turbine rotor 130, and a plurality of coil windings around which the generator stator coil is wound may be formed on its inner peripheral surface.
  • the coil winding unit can produce electricity according to changes in the magnetic field.
  • the generator stator 140 is provided to be spaced apart from the turbine rotor 130 and is formed in a cylindrical shape surrounding the turbine rotor 130.
  • the permanent magnet 132 rotates and an induced current is applied to the coil winding to generate electricity.
  • the load of the turbine rotor 130 can be supported by the fluid of the generator stator 140, and if necessary, an auxiliary bearing such as a mechanical bearing can be applied.
  • the turbine nozzle 150 is disposed outside the turbine and can change the direction of movement of the working fluid.
  • the turbine nozzle 150 is located in front of the turbine rotor blade 120 and may serve to change the direction of movement of the working fluid so that the turbine rotor blade 120 can operate smoothly.
  • the turbo generator 100 includes a rotating shaft 110, a turbine rotor blade 120, a turbine rotor 130, a generator stator 140, and a volute 160. can do.
  • the working fluid may flow in a radial direction through the turbine nozzle 150, where the fluid flows into an inward radius including the turbine rotor body 131, the rotation axis 110, and the turbine rotor blade 120. It may flow into the turbine rotor 130 of the current turbine.
  • the energy of the working fluid may be converted into rotational energy by the turbine rotor blades 120 arranged on the turbine rotor body 131 and transmitted to the rotation shaft 110. Thereafter, the working fluid may be discharged along the rotation axis 110 in the direction where the diffuser is located.
  • the turbine rotor blades 120 may be arranged symmetrically to each other along the longitudinal direction of the rotation axis 110.
  • a pair of turbine rotor blades 120 may be provided on the outer surface of the rotation shaft 110.
  • the turbine discharge ports of the turbine rotor blades 120 may be arranged in opposite directions, and the turbine rotor blades 120, which are mutually symmetrical, are arranged and operated in opposite directions to reduce axial force or driving force. It can be.
  • a pair of turbine rotor blades 120 may be of the same size to effectively offset the axial load. This is based on the assumption that the flow rate and pressure gradient of the working fluid flowing into each turbine rotor blade 120 are the same. If the flow rate and pressure gradient of the working fluid flowing into each turbine rotor blade 120 are different, the turbine rotor blades 120 can generate an axle load of the same size. It may also be considered to provide different sizes of the rotor blades 120.
  • the turbine rotor 130 is disposed between the pair of turbine rotor blades 120 so that it can rotate with the rotation shaft 110, and may include a permanent magnet 132 that provides magnetism.
  • a turbine rotor 130 is provided on the outer peripheral surface of the rotation shaft 110, and the turbine rotor 130 may be disposed between a pair of turbine rotor blades 120 so as to rotate together with the rotation shaft 110.
  • the turbine rotor 130 is provided on the outer peripheral surface of the rotation shaft 110 and rotates together with the rotation shaft 110, and may be provided with a permanent magnet 132 at a position maintaining a predetermined distance from the generator stator 140.
  • the permanent magnets 132 may be arranged to extend on both sides along the longitudinal direction of the rotation axis 110 based on the virtual central axis between the pair of turbine rotor blades 120.
  • the permanent magnets 132 may be arranged symmetrically with respect to the virtual central axis. That is, the permanent magnets 132 may be arranged in a symmetrical shape with the same volume and cross-section based on the virtual central axis.
  • a rim and a connection part connecting the rim with the turbine rotor body 131 may be provided on the upper side of the permanent magnet 132, and the rim is in contact with the fluid of the generator stator 140 and moves in the axial and radial directions of the axis. It can support static and dynamic loads.
  • the support fluid may be the same as the turbine's working fluid, and if different, the seal 141 assembled to the generator stator 140 can prevent the working fluid from leaking and the two fluids from mixing.
  • the generator stator 140 surrounds the turbine rotor 130, and a plurality of coil windings around which the generator stator coil is wound may be formed on its inner peripheral surface.
  • the coil winding unit can produce electricity according to changes in the magnetic field.
  • the generator stator 140 is provided to be spaced apart from the turbine rotor 130 and may be formed in a cylindrical shape surrounding the turbine rotor 130.
  • the permanent magnet 132 rotates and an induced current is applied to the coil winding to generate electricity.
  • the load of the turbine rotor 130 can be supported by the fluid of the generator stator 140, and if necessary, an auxiliary bearing such as a mechanical bearing can be applied.
  • the volute 160 is disposed outside the turbine to change the direction of movement of the working fluid.
  • the volute 160 is located in front of the turbine rotor blade and may serve to change the direction of movement of the working fluid so that the turbine rotor blade can operate smoothly.
  • Figure 4 is a diagram for explaining a turbo generator in which a turbine and a generator rotor are combined according to an embodiment.
  • the turbo generator 1000 includes a rotating shaft 1100, a turbine rotor blade 1200, a turbine rotor 1310, a generator rotor 1320, a generator stator 1400, and a nozzle 1500. may include.
  • a radial flow turbine applied to the turbo generator 1000 according to the embodiment is a type in which a working fluid such as steam or gas flows in the radial direction in a plane perpendicular to the rotation axis to rotate the turbine rotor blade 1200. It can mean the turbine of .
  • These radial flow turbines can be divided into outward radial flow turbines (radial outflow turbine) and inward radial flow turbines (radial inflow turbine).
  • radial outflow turbine radial outflow turbine
  • inward radial flow turbines radial inflow turbine
  • the working fluid may flow into the turbine rotor 1310 in a radial direction through at least one of a volute and a nozzle, and may flow inwardly along the shaft of the inward radial flow turbine. Flow may flow in the direction of the turbine's diffuser.
  • the working fluid may flow radially through the turbine nozzle 1500, where the fluid flows into an inward radius including the turbine rotor body 1310, the rotation shaft 1100, and the turbine rotor blade 1200. It may flow into the rotor 1300 of the current turbine.
  • the energy of the working fluid may be converted into rotational energy by the turbine rotor blades 1200 arranged on the turbine rotor body 1310 and transmitted to the rotation shaft 1100. Thereafter, the working fluid may be discharged along the rotation axis 1100 in the direction where the diffuser is located.
  • the turbine rotor blades 1200 may be symmetrically arranged along the longitudinal direction of the rotation axis 1100.
  • a pair of turbine rotor blades 1200 may be provided on the outer surface of the rotation shaft 1100.
  • the turbine outlets of the turbine rotor blades 1200 may be arranged in opposite directions, and the turbine rotor blades 1200, which are mutually symmetrical, are arranged in opposite directions to reduce axial force (thrust force). It can be provided as much as possible.
  • a pair of turbine rotor blades 1200 may be of the same size to effectively offset the axial load. This is based on the assumption that the flow rate and pressure gradient of the working fluid flowing into each turbine rotor blade 1200 are the same. If the flow rate and pressure gradient of the working fluid flowing into each turbine rotor blade 1200 are different, the turbine rotor blades 1200 can generate an axle load of the same size. It may also be considered to provide different sizes of the rotor blades 1200.
  • the turbine rotor 1310 may be disposed between the pair of turbine rotor blades 1200 so as to rotate with the rotation shaft 1100, and may include a generator rotor 1320 that provides magnetism.
  • a turbine rotor 1310 is provided on the outer peripheral surface of the rotation shaft 1100, and the turbine rotor 1310 may be disposed between a pair of turbine rotor blades 1200 so as to rotate together with the rotation shaft 1100.
  • the turbine rotor 1310 is provided on the outer peripheral surface of the rotation shaft 1100 and rotates together with the rotation shaft 1100, and the generator rotor 1320 may be provided at a position maintaining a predetermined distance from the stator 1400.
  • the generator rotor 1320 may be arranged to extend on both sides along the longitudinal direction of the rotation axis 1100 based on the virtual central axis between the pair of turbine rotor blades 1200.
  • the generator rotors 1320 may be arranged symmetrically with respect to the virtual central axis. That is, the generator rotors 1320 may be arranged in a symmetrical shape with the same volume and cross section based on the virtual central axis.
  • a rim and a connection portion connecting the rim to the turbine rotor body 1310 may be provided on the upper side of the generator rotor 1320, and the rim is in contact with the fluid of the generator stator 1400 and moves in the axial and radial directions of the shaft. It can support static and dynamic loads.
  • the support fluid may be the same as the working fluid of the turbine, and if different, the seal 1410 assembled in the generator stator 1400 can prevent the working fluid from leaking and mixing of the two fluids.
  • the generator rotor according to the embodiment can be applied to an induction generator that borrows the principle of an electromagnet that becomes magnetic when a current flows in the coil according to Ampere's law instead of a permanent magnet.
  • the generator rotor of Figure 4 is a type in which the aforementioned permanent magnets are replaced by electromagnets, and may mean a configuration for application to an induction generator type rather than a permanent magnet type generator.
  • Figure 4 may represent a structure in which copper rods and coils replace permanent magnets in the form of electromagnets.
  • the induction generator operates by applying voltage to the stator winding and inducing voltage and current to the rotor conductor without applying a separate voltage to the rotor.
  • the squirrel cage induction motor method of Figure 4 is attached to the rotor. (Copper conductor) is inserted and when voltage and current are applied to the stator, secondary voltage and secondary current are formed (induced) in the rotor copper bar and operated. If the voltage and current supplied to the stator winding of a squirrel cage motor are constant, the rotor can maintain the same operating characteristics without changes in current, voltage, or resistance during operation.
  • turbo generator according to the embodiment can be applied to a wound rotor induction motor type.
  • the wound-type induction motor method involves winding a three-phase winding on the rotor of a squirrel cage motor instead of a copper bar to form a secondary winding.
  • a slip ring is provided at the tip of each phase winding to guide the secondary current to the outside through a brush. , torque and speed can be controlled by changing the size of the secondary resistance.
  • the generator stator 1400 surrounds the turbine rotor 1300, and a plurality of coil windings around which stator coils are wound may be formed on its inner peripheral surface.
  • the coil winding unit can produce electricity according to changes in the magnetic field.
  • the generator stator 1400 is provided to be spaced apart from the turbine rotor 1300 and is formed in a cylindrical shape surrounding the turbine rotor 1300.
  • the generator rotor 1320 rotates and an induced current is applied to the coil winding to generate electricity.
  • the load of the turbine rotor 1300 can be supported by the fluid of the stator 1400, and if necessary, an auxiliary bearing such as a mechanical bearing can be applied.
  • the turbine nozzle 1500 is disposed outside the turbine and can change the direction of movement of the working fluid.
  • the turbine nozzle 1500 is located in front of the turbine rotor blade 1200 and may serve to change the direction of movement of the working fluid so that the turbine rotor blade 1200 can operate smoothly.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

Selon un mode de réalisation, l'invention concerne un turbogénérateur ayant une turbine et un rotor combinés d'un générateur, le turbogénérateur comprenant : un arbre de rotation ; une paire de pales de rotor de turbine disposées symétriquement l'une par rapport à l'autre le long de la direction longitudinale de l'arbre de rotation ; un rotor de turbine disposé entre la paire de pales de rotor de turbine pour pouvoir tourner avec l'arbre de rotation et comprenant un matériau magnétique générant un courant induit en fonction de la rotation ; et un stator entourant le rotor de turbine et ayant une pluralité de parties d'enroulement de bobine autour desquelles des bobines de stator sont enroulées sur la surface circonférentielle interne de celui-ci.
PCT/KR2022/012009 2022-06-16 2022-08-11 Turbogénérateur ayant une turbine et un rotor combinés de générateur WO2023243763A1 (fr)

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KR1020220073593A KR102692255B1 (ko) 2022-06-16 2022-06-16 터빈과 발전기의 로터가 결합된 터보 발전기
KR10-2022-0073593 2022-06-16

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WO2023243763A1 true WO2023243763A1 (fr) 2023-12-21

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Publication number Priority date Publication date Assignee Title
KR20120021509A (ko) * 2010-08-05 2012-03-09 한국에너지기술연구원 2단 구심 터빈형 ｏｒｃ 발전 시스템
KR101327266B1 (ko) * 2012-10-04 2013-11-20 한국에너지기술연구원 대칭형 증기 터빈 기반 발전 장치 및 방법
KR20160094763A (ko) * 2015-02-02 2016-08-10 한화테크윈 주식회사 유기랭킨사이클 시스템
US20190390659A1 (en) * 2018-06-22 2019-12-26 Cheng-Yan Kao Multiple impeller type power generation turbine
KR102122873B1 (ko) * 2019-04-30 2020-06-15 (주)지티씨 폐쇄냉각회로를 포함한 orc 터빈형 발전시스템

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