CN117856530A - A power supply device for a rotor monitoring system of a hydro-generator - Google Patents

A power supply device for a rotor monitoring system of a hydro-generator Download PDF

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Publication number
CN117856530A
CN117856530A CN202311592212.9A CN202311592212A CN117856530A CN 117856530 A CN117856530 A CN 117856530A CN 202311592212 A CN202311592212 A CN 202311592212A CN 117856530 A CN117856530 A CN 117856530A
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CN
China
Prior art keywords
rotor
generator
power supply
monitoring system
direct current
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
CN202311592212.9A
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Chinese (zh)
Inventor
梁波
桂绍波
崔磊
朱钊
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Changjiang Institute of Survey Planning Design and Research Co Ltd
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Changjiang Institute of Survey Planning Design and Research 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.)
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Publication date
Application filed by Changjiang Institute of Survey Planning Design and Research Co Ltd filed Critical Changjiang Institute of Survey Planning Design and Research Co Ltd
Priority to CN202311592212.9A priority Critical patent/CN117856530A/en
Publication of CN117856530A publication Critical patent/CN117856530A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
    • F03B11/008—Measuring or testing arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D7/00—Controlling wind motors 
    • F03D7/06—Controlling wind motors  the wind motors having rotation axis substantially perpendicular to the air flow entering the rotor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/10—Combinations of wind motors with apparatus storing energy
    • F03D9/11—Combinations of wind motors with apparatus storing energy storing electrical energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/14—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/90—Regulation of charging or discharging current or voltage
    • H02J7/933—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/83—Testing, e.g. methods, components or tools therefor

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Wind Motors (AREA)

Abstract

The invention belongs to the technical field of water conservancy and hydropower and electromechanical engineering, and particularly relates to a power supply device of a rotor monitoring system of a hydraulic generator, which comprises at least one wind turbine generator fixedly arranged on a rotor bracket of a rotor of the hydraulic generator, wherein the wind turbine generator is electrically connected with the rotor monitoring system fixedly arranged on the rotor; the wind turbine generator is used for rotating along with the rotor so as to convert wind energy generated by the rotation of the rotor in the air into electric energy and transmit the electric energy to the rotor monitoring system; the problems that the conductive slip ring or the wireless power supply and signal transmission device is usually used as a data and electric energy transmission device in the power supply device of the rotor monitoring system of the conventional hydraulic generator, the conductive slip ring with the electric brush is easy to influence the safety and reliability of the operation of the rotor in the use process, and the wireless power supply and signal transmission device is adopted can have the technical problems of high economic cost investment, high maintenance cost and high electric energy loss rate are solved.

Description

Power supply device of rotor monitoring system of hydraulic generator
Technical Field
The invention belongs to the technical field of water conservancy and hydropower and electromechanical engineering, and particularly relates to a power supply device of a rotor monitoring system of a hydraulic generator.
Background
The large-sized hydraulic generator rotor is rotary equipment for providing a rotating magnetic field of the generator and inducing current in a stator, and has the characteristics of high mechanical strength and high thermal load due to the characteristics of high rotating speed, large outer diameter, high exciting current and the like; therefore, in the use process of the rotor, a rotor monitoring system (generally including a machine vision monitoring module, a temperature monitoring module, a wireless data transmission module, etc.) is generally required to monitor the rotor body and transmit monitoring data.
However, since the rotor is a rotating component, how to supply power to the rotor monitoring system arranged on the rotor is always a difficult problem, the power supply device of the rotor monitoring system of the existing hydraulic generator usually uses a conductive slip ring or a wireless power supply and signal transmission device as a data and electric energy transmission device, however, the conductive slip ring with a brush of the prior art can generate friction heating, brush head deformation, slip ring and carbon brush material abrasion during the use process, the safe reliability of the rotor operation is easily affected, and the adoption of the wireless power supply and signal transmission device has the problems of high economic cost investment, high maintenance cost and high electric energy loss rate.
Disclosure of Invention
The invention provides a power supply device of a rotor monitoring system of a hydraulic generator, which solves the technical problems that the power supply device of the rotor monitoring system of the conventional hydraulic generator usually uses a conductive slip ring or a wireless power supply and signal transmission device as a data and electric energy transmission device, however, the conductive slip ring with a brush generates friction heating, brush head deformation and abrasion of slip ring and carbon brush materials in the use process, the safety and the reliability of the rotor operation are easily affected, and the wireless power supply and signal transmission device mode can have the technical problems of high economic cost investment, high maintenance cost and high electric energy loss rate.
The technical scheme adopted by the invention is as follows: the power supply device of the rotor monitoring system of the hydraulic generator comprises at least one wind turbine generator fixedly arranged on a rotor bracket of a rotor of the hydraulic generator, wherein the wind turbine generator is electrically connected with the rotor monitoring system fixedly arranged on the rotor; the wind turbine generator is configured to rotate with the rotor to convert a portion of wind energy generated by the rotor rotating in air to electrical energy and to transmit the electrical energy to the rotor monitoring system.
The wind turbine generator is fixedly arranged on the rotor support, so that the wind turbine generator can rotate along with the rotor, wind energy generated by the rotation of the rotor in air is partially converted into electric energy, the electric energy is transmitted to the rotor monitoring system fixedly arranged on the rotor, and the wind turbine generator fixedly arranged on the rotor support can directly supply power required by rotor monitoring and data transmission to the rotor monitoring system arranged on the rotor, so that the technical problems that a power supply device of the rotor monitoring system of the existing hydraulic generator usually uses a conductive slip ring or a wireless power supply and signal transmission device as a data and electric energy transmission device, the conductive slip ring with a brush generates friction heating, brush head deformation, slip ring and carbon brush material abrasion in the use process, the running safety and reliability of the rotor are easily affected, and the wireless power supply and signal transmission device is adopted, so that the technical problems of high economic cost investment, high maintenance cost and high electric energy loss rate can be caused.
The power supply device of the rotor monitoring system of the hydraulic generator converts wind energy generated by the rotation of the rotor in the air into electric energy, and transmits the electric energy to the rotor monitoring system fixedly arranged on the rotor for use, so that an external power supply is not needed, the energy consumption cost of the rotor monitoring system is completely saved, and the hydraulic generator has the technical effects of energy conservation and environmental protection.
Further, the number of the wind turbine generators is plural, and each wind turbine generator is arranged on the rotor frame at intervals around the central axis of the rotor.
Further, the wind turbine generator comprises a turbine box fixedly mounted on the rotor support, a mixed-flow turbine mounted in the turbine box, a main shaft rotatably connected to the turbine box and a generator fixedly connected to the turbine box;
the bottom end of the turbine box is fixedly connected with one side of the rotor support, the main shaft is perpendicular to the rotation plane of the rotor, and the main shaft is rotationally connected to the top end of the turbine box, so that the main shaft can rotate around the central axis of the main shaft; one end of the main shaft penetrates into the turbine box and is used for installing the mixed-flow turbine, and the other end of the main shaft penetrates out of the turbine box and is used for being fixedly connected with the input end of the generator;
the side of turbine case is provided with the air-supply line, the bottom of turbine case is provided with out the tuber pipe, go out the tuber pipe and pass rotor support stretches out to the offside of rotor support, the generator with rotor monitoring system electricity is connected.
Further, the air inlet pipe is arranged along the tangential direction of the rotor, and the opening direction of one end of the air inlet pipe, which is far away from the turbine box, is the same as the rotation direction of the rotor.
Further, one end of the air inlet pipe is fixedly connected with the side face of the turbine box and communicated into the turbine box, and the other end of the air inlet pipe is in a horn mouth shape.
Further, one end of the air outlet pipe is fixedly connected with the bottom end of the turbine box and communicated to the inside of the turbine box, and the other end of the air outlet pipe is in a horn shape.
Further, the wind turbine generator further comprises a transformation rectifying unit fixedly installed on the generator, the generator and the rotor monitoring system are electrically connected with the transformation rectifying unit, and the transformation rectifying unit is used for providing required alternating current power supply voltage and direct current power supply voltage for the rotor monitoring system.
Since the alternating current is usually partially required to be supplied and the direct current is partially required to be supplied in each component in the rotor monitoring system, the alternating current output by the generator can be partially converted into the alternating current (conversion voltage) required by the rotor monitoring system by using the transformation rectifying unit by arranging the transformation rectifying unit, and partially converted into the direct current (conversion voltage) required by the rotor monitoring system, and the alternating current is converted into the direct current.
Further, the wind turbine generator further comprises a storage battery fixedly mounted on the generator, the rotor monitoring system and the transformation rectifying unit are electrically connected with the storage battery, and the transformation rectifying unit is further used for providing required direct-current charging voltage for the storage battery; the battery is used to provide power to the rotor monitoring system when the generator is shut down.
Through setting up the battery, can utilize the transformation rectification unit will the alternating current part of generator output converts the battery provides required direct current for the electric energy of generator output is except being used for supplying with the surplus electric energy of the part of rotor monitoring system can be stored through the battery, and can pass through the battery when the generator is shut down provide the power for rotor monitoring system, both improved the utilization ratio of energy, still realized when the generator is shut down to rotor monitoring system's time delay power supply.
Further, the power supply device of the rotor monitoring system of the hydraulic generator further comprises an on-site control unit, wherein the on-site control unit comprises a control console, a controller arranged on the generator and a data acquisition module arranged on the transformation rectifying unit; the data acquisition module and the controller are both in wireless communication connection with the console;
the controller is used for controlling the start and stop of the generator and sending start and stop state information of the generator to the control console; the data acquisition module is used for acquiring the alternating current power supply voltage information, the direct current power supply voltage information and the direct current charging voltage information of the transformation rectifying unit and sending the information to the control console;
the control console is used for controlling the controller, a display screen is arranged on the control console, and the display screen is used for displaying the start-stop state of the generator, and the alternating current power supply voltage value, the direct current power supply voltage value and the direct current charging voltage value output by the transformation rectifying unit in real time according to the working state information, the alternating current power supply voltage information, the direct current power supply voltage information and the direct current charging voltage information received by the control console;
the controller and the data acquisition module are electrically connected with the storage battery, and the storage battery is also used for providing power for the data acquisition module and the controller.
By arranging the local control unit, the start and stop of the generator can be remotely controlled through the control console, the start and stop state of the generator can be displayed in real time through the display screen, and the alternating current power supply voltage value, the direct current power supply voltage value and the direct current charging voltage value output by the transformation rectifying unit are used for realizing the local control of the power supply device of the rotor monitoring system of the hydraulic generator; and power is provided to the controller and the data acquisition module by the storage battery.
Further, the local control unit further comprises an early warning monitoring unit arranged on the control console, and the early warning monitoring unit is electrically connected with the display screen;
the early warning monitoring unit is used for monitoring the alternating current power supply voltage information, the direct current power supply voltage information and the direct current charging voltage information in real time according to the control console when the rotating speed of the rotor exceeds a preset rotating speed, and sending fault information to the display screen when at least one of the alternating current power supply voltage value exceeds a first preset voltage range, the direct current power supply voltage value exceeds a second preset voltage range and the direct current charging voltage value exceeds a third preset voltage range is monitored; the display screen is also used for sending out acousto-optic early warning according to the received fault information.
The early warning monitoring unit is arranged, the early warning monitoring unit monitors in real time when the rotating speed of the rotor exceeds a preset rotating speed (namely, when the wind turbine generator normally generates electricity), and when at least one of the three conditions that the alternating current power supply voltage value exceeds a first preset voltage range, the direct current power supply voltage value exceeds a second preset voltage range and the direct current charging voltage value exceeds a third preset voltage range is monitored, early warning information is sent to the display screen; and the display screen sends out acousto-optic early warning according to the received fault information to remind operators of the fault of the wind turbine generator.
Drawings
Fig. 1 is a schematic diagram of an assembly structure of a power supply device and a rotor of a rotor monitoring system of an embodiment hydraulic generator;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
wherein, 1-rotor center shaft, 2-rotor bracket, 3-rotor yoke, 4-wind turbine generator;
21-wheel hub, 22-wheel spoke;
41-turbine box, 42-mixed flow turbine, 43-main shaft, 44-generator, 45-air inlet pipe and 46-air outlet pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention:
as shown in fig. 1, the present embodiment provides a power supply device of a rotor monitoring system of a hydraulic generator, including: at least one wind turbine generator 4 fixedly mounted on a rotor support 2 of a rotor of the hydro-generator, the wind turbine generator 4 being electrically connected to a rotor monitoring system fixedly mounted on the rotor; the wind turbine generator 4 is adapted to rotate with the rotor to convert a portion of the wind energy generated by the rotor rotating in air into electrical energy and to transmit the electrical energy to the rotor monitoring system.
Through with at least one wind turbine generator 4 fixed mounting on rotor support 2, make wind turbine generator 4 can rotate along with the rotor, with the wind energy part that the rotor rotated in the air and become electric energy, and with the rotor monitoring system of fixed mounting on the rotor, can be through the wind turbine generator 4 of fixed mounting on rotor support 2 direct supply rotor monitoring and the required power of data transmission to the rotor monitoring system of installing on the rotor, need not external power supply, the power supply unit who has solved current hydraulic generator's rotor monitoring system can generally use conductive slip ring or wireless power supply and signal transmission device as the transmission device of data and electric energy, however the conductive slip ring of traditional area brush can produce friction heating in the use, the brush warp, the problem of sliding ring and material wearing and tearing, easily influence the fail safe nature of rotor operation, and adopt wireless power supply and signal transmission device's mode, can exist economic cost input high, the maintenance cost is high, the technical problem that the electric energy loss rate is big.
The power supply device of the rotor monitoring system of the hydraulic generator converts wind energy generated by the rotation of the rotor in the air into electric energy, and transmits the electric energy to the rotor monitoring system fixedly arranged on the rotor for use, so that an external power supply is not needed, the energy consumption cost of the rotor monitoring system is completely saved, and the hydraulic generator has the technical effects of energy conservation and environmental protection.
In the present embodiment, as shown in fig. 1, the number of wind turbine generators 4 is plural (specifically, four in the present embodiment), and each wind turbine generator 4 is arranged on the rotor frame 2 at intervals around the central axis of the rotor.
In this embodiment, as shown in fig. 1, the rotor of the hydraulic generator includes a rotor center shaft 1, a rotor bracket 2 sleeved outside the rotor center shaft 1 and fixedly connected to the rotor center shaft 1, a rotor yoke 3 mounted on the rotor bracket 2, a rotor magnetic pole (not shown in the figure) mounted on the rotor yoke 3, and a rotor winding (not shown in the figure) mounted on the rotor magnetic pole; the rotor bracket 2 comprises a hub 21 sleeved outside the rotor central shaft 1 and fixedly connected to the rotor central shaft 1, and a plurality of spokes 22 fixedly connected between the outer peripheral surface of the hub 21 and the inner peripheral surface of the rotor yoke 3, wherein each spoke 22 is uniformly distributed along the circumferential direction of the hub 21.
Among them, it is preferable that, in the present embodiment, each wind turbine generator 4 is fixedly mounted on the hub 21, and each wind turbine generator 4 is arranged at intervals around the central axis of the rotor.
As shown in fig. 1 and 2, in the present embodiment, the wind turbine generator 4 includes a turbine case 41 fixedly mounted on the rotor frame 2 (preferably, in the present embodiment, the turbine case 41 is fixedly mounted on the hub 21), a mixed-flow turbine 42 mounted in the turbine case 41, a main shaft 43 rotatably connected to the turbine case 41, and a generator 44 fixedly connected to the turbine case 41;
the bottom end of the turbine housing 41 is fixedly connected to one side of the rotor support 2 (preferably, in this embodiment, the bottom end of the turbine housing 41 is fixedly connected to one side of the hub 21), and the main shaft 43 is disposed perpendicular to the rotation plane of the rotor and is rotatably connected to the top end of the turbine housing 41 so that the main shaft 43 can rotate about its central axis; one end of the main shaft 43 penetrates into the turbine box 41 for installing the mixed-flow turbine 42, and the other end of the main shaft 43 penetrates out of the turbine box 41 for fixedly connecting with the input end of the generator 44;
an air inlet pipe 45 is arranged on the side face of the turbine box 41, an air outlet pipe 46 is arranged at the bottom end of the turbine box 41, the air outlet pipe 46 penetrates through the rotor support 2 to extend to the opposite side of the rotor support 2, and the generator 44 is electrically connected with the rotor monitoring system.
As shown in fig. 1 and 2, in the present embodiment, the air inlet duct 45 is disposed in the tangential direction of the rotor, and the opening on the end of the air inlet duct 45 away from the turbine case 41 faces the same direction as the rotation direction of the rotor.
Specifically, taking fig. 1 as an example, the rotor rotates clockwise when operating, and in fig. 1, the air inlet pipe 45 of the wind turbine generator 4 located at the upper side faces to the right side away from the opening on one end of the turbine case 41; the air inlet duct 45 of the wind turbine generator 4 located on the right side faces downward away from the opening on one end of the turbine case 41; an air inlet pipe 45 of the wind turbine generator 4 located on the lower side faces to the left away from an opening on one end of the turbine case 41; the air inlet duct 45 of the wind turbine generator 4 located on the left side is directed upward away from the opening on one end of the turbine case 41.
As shown in fig. 2, in the present embodiment, one end of the air inlet pipe 45 is fixedly connected to the side surface of the turbine box 41 and is connected to the inside of the turbine box 41, and the other end of the air inlet pipe 45 is configured in a horn shape.
As shown in fig. 2, in the present embodiment, one end of the air outlet pipe 46 is fixedly connected to the bottom end of the turbine box 41 and is connected to the inside of the turbine box 41, and the other end of the air outlet pipe 46 is configured in a bell mouth shape.
Preferably, in the present embodiment, the wind turbine generator 4 further comprises a transformer rectifying unit fixedly mounted on the generator 44, and the generator 44 and the rotor monitoring system are electrically connected to the transformer rectifying unit, and the transformer rectifying unit is configured to provide the required ac power supply voltage and the dc power supply voltage to the rotor monitoring system.
Since the ac power is generally partially supplied and the dc power is partially supplied in each component of the rotor monitoring system, the ac power output from the generator 44 can be partially converted into the ac power (converted voltage) required by the rotor monitoring system and partially converted into the dc power (converted voltage) required by the rotor monitoring system by providing the transformer rectifier unit.
Further, in the present embodiment, the wind turbine generator 4 further includes a battery fixedly mounted on the generator 44, and the rotor monitoring system and the transformation rectifying unit are electrically connected to the battery, and the transformation rectifying unit is further configured to provide a required dc charging voltage to the battery; the battery is used to provide power to the rotor monitoring system when the generator 44 is shut down.
Through setting up the battery, can utilize the transformation rectification unit to convert the alternating current part of generator 44 output into the battery and provide required direct current for the surplus electric energy except for being used for supplying with the part of rotor monitoring system in the electric energy of generator 44 output can be stored through the battery, and can provide the power to rotor monitoring system when generator 44 shut down through the battery, both improved the utilization ratio of energy, still realized the time delay power supply to rotor monitoring system when generator 44 shut down.
Further, in this embodiment, the power supply device of the rotor monitoring system of the hydraulic generator further includes an in-situ control unit, where the in-situ control unit includes a console, a controller installed on the generator 44, and a data acquisition module installed on the transformer rectifying unit; the data acquisition module and the controller are both in wireless communication connection with the console;
the controller is used for controlling the start and stop of the generator 44 and sending start and stop state information of the generator 44 to the console; the data acquisition module is used for acquiring alternating current power supply voltage information, direct current power supply voltage information and direct current charging voltage information of the transformation rectifying unit and sending the alternating current power supply voltage information, the direct current power supply voltage information and the direct current charging voltage information to the control console;
the control console is used for controlling the controller, and is provided with a display screen, and the display screen is used for displaying the start-stop state of the generator 44, and the alternating current power supply voltage value, the direct current power supply voltage value and the direct current charging voltage value output by the transformation rectifying unit in real time according to the working state information, the alternating current power supply voltage information, the direct current power supply voltage information and the direct current charging voltage information received by the control console;
the controller and the data acquisition module are electrically connected with the storage battery, and the storage battery is also used for providing power for the data acquisition module and the controller.
By arranging the on-site control unit, the start and stop of the generator 44 can be remotely controlled through the control console, the start and stop state of the generator 44 can be displayed in real time through the display screen, and the on-site control of the power supply device of the rotor monitoring system of the hydraulic generator is realized by the alternating current power supply voltage value, the direct current power supply voltage value and the direct current charging voltage value which are output by the transformation rectifying unit; and the storage battery is used for providing power for the controller and the data acquisition module.
Further, in this embodiment, the local control unit further includes an early warning monitoring unit disposed on the console, and the early warning monitoring unit is electrically connected to the display screen;
the early warning monitoring unit is used for monitoring the AC power supply voltage information, the DC power supply voltage information and the DC charging voltage information in real time according to the control console when the rotating speed of the rotor exceeds a preset rotating speed, and sending fault information to the display screen when at least one of the three conditions that the AC power supply voltage value exceeds a first preset voltage range, the DC power supply voltage value exceeds a second preset voltage range and the DC charging voltage value exceeds a third preset voltage range is monitored; the display screen is also used for sending out acousto-optic early warning according to the received fault information.
By arranging the early warning monitoring unit, the early warning monitoring unit monitors in real time when the rotating speed of the rotor exceeds a preset rotating speed (namely, when the wind turbine generator 4 normally generates electricity), and when at least one of the three conditions that the alternating current power supply voltage value exceeds a first preset voltage range, the direct current power supply voltage value exceeds a second preset voltage range and the direct current charging voltage value exceeds a third preset voltage range is monitored, early warning information is sent to the display screen; the display screen sends out acousto-optic early warning according to the received fault information, and reminds operators of faults of the wind turbine generator 4.
The power supply device of the rotor monitoring system of the hydraulic generator provided by the invention has at least the following technical effects or advantages:
1. through with at least one wind turbine generator 4 fixed mounting on rotor support 2, make wind turbine generator 4 can rotate along with the rotor, with the wind energy part that the rotor rotated in the air and become electric energy, and with the rotor monitoring system of fixed mounting on the rotor, can be through the wind turbine generator 4 of fixed mounting on rotor support 2 direct supply rotor monitoring and the required power of data transmission to the rotor monitoring system of installing on the rotor, need not external power supply, the power supply unit who has solved current hydraulic generator's rotor monitoring system can generally use conductive slip ring or wireless power supply and signal transmission device as the transmission device of data and electric energy, however the conductive slip ring of traditional area brush can produce friction heating in the use, the brush warp, the problem of sliding ring and material wearing and tearing, easily influence the fail safe nature of rotor operation, and adopt wireless power supply and signal transmission device's mode, can exist economic cost input high, the maintenance cost is high, the technical problem that the electric energy loss rate is big.
2. The power supply device of the rotor monitoring system of the hydraulic generator converts wind energy generated by the rotation of the rotor in the air into electric energy, and transmits the electric energy to the rotor monitoring system fixedly arranged on the rotor for use, so that an external power supply is not needed, the energy consumption cost of the rotor monitoring system is completely saved, and the technical effects of energy conservation and environmental protection are achieved.
3. Since the ac power is generally partially supplied and the dc power is partially supplied in each component of the rotor monitoring system, the ac power output from the generator 44 can be partially converted into the ac power (converted voltage) required by the rotor monitoring system and partially converted into the dc power (converted voltage) required by the rotor monitoring system by providing the transformer rectifier unit.
4. Through setting up the battery, can utilize the transformation rectification unit to convert the alternating current part of generator 44 output into the battery and provide required direct current for the surplus electric energy except for being used for supplying with the part of rotor monitoring system in the electric energy of generator 44 output can be stored through the battery, and can provide the power to rotor monitoring system when generator 44 shut down through the battery, both improved the utilization ratio of energy, still realized the time delay power supply to rotor monitoring system when generator 44 shut down.
5. By arranging the on-site control unit, the start and stop of the generator 44 can be remotely controlled through the control console, the start and stop state of the generator 44 can be displayed in real time through the display screen, and the on-site control of the power supply device of the rotor monitoring system of the hydraulic generator is realized by the alternating current power supply voltage value, the direct current power supply voltage value and the direct current charging voltage value which are output by the transformation rectifying unit; and the storage battery is used for providing power for the controller and the data acquisition module.
6. By arranging the early warning monitoring unit, the early warning monitoring unit monitors in real time when the rotating speed of the rotor exceeds a preset rotating speed (namely, when the wind turbine generator 4 normally generates electricity), and when at least one of the three conditions that the alternating current power supply voltage value exceeds a first preset voltage range, the direct current power supply voltage value exceeds a second preset voltage range and the direct current charging voltage value exceeds a third preset voltage range is monitored, early warning information is sent to the display screen; the display screen sends out acousto-optic early warning according to the received fault information, and reminds operators of faults of the wind turbine generator 4.
The above is only a specific application example of the present invention, and the protection scope of the present invention is not limited at all, and the technical solution formed by adopting equivalent transformation or equivalent substitution falls within the protection scope of the present invention.

Claims (10)

1. The utility model provides a power supply unit of hydro-generator's rotor monitoring system which characterized in that: at least one wind turbine generator comprising a rotor support fixedly mounted on a rotor of a hydro-generator, said wind turbine generator being electrically connected to a rotor monitoring system fixedly mounted on said rotor; the wind turbine generator is configured to rotate with the rotor to convert a portion of wind energy generated by the rotor rotating in air to electrical energy and to transmit the electrical energy to the rotor monitoring system.
2. The power supply device of a rotor monitoring system of a hydro-generator as defined in claim 1, wherein: the number of the wind turbine generators is a plurality, and each wind turbine generator is arranged on the rotor support at intervals around the central axis of the rotor.
3. The power supply device of a rotor monitoring system of a hydro-generator as defined in claim 1, wherein: the wind turbine generator comprises a turbine box fixedly arranged on the rotor support, a mixed-flow turbine arranged in the turbine box, a main shaft rotatably connected to the turbine box and a generator fixedly connected to the turbine box;
the bottom end of the turbine box is fixedly connected with one side of the rotor support, the main shaft is perpendicular to the rotation plane of the rotor, and the main shaft is rotationally connected to the top end of the turbine box, so that the main shaft can rotate around the central axis of the main shaft; one end of the main shaft penetrates into the turbine box and is used for installing the mixed-flow turbine, and the other end of the main shaft penetrates out of the turbine box and is used for being fixedly connected with the input end of the generator;
the side of turbine case is provided with the air-supply line, the bottom of turbine case is provided with out the tuber pipe, go out the tuber pipe and pass rotor support stretches out to the offside of rotor support, the generator with rotor monitoring system electricity is connected.
4. A power supply device for a rotor monitoring system of a hydro-generator as defined in claim 3 wherein: the air inlet pipe is arranged along the tangential direction of the rotor, and the direction of an opening on one end of the air inlet pipe, which is far away from the turbine box, is the same as the rotation direction of the rotor.
5. A power supply device for a rotor monitoring system of a hydro-generator as defined in claim 3 wherein: one end of the air inlet pipe is fixedly connected with the side face of the turbine box and communicated into the turbine box, and the other end of the air inlet pipe is in a horn shape.
6. A power supply device for a rotor monitoring system of a hydro-generator as defined in claim 3 wherein: one end of the air outlet pipe is fixedly connected with the bottom end of the turbine box and communicated into the turbine box, and the other end of the air outlet pipe is in a horn shape.
7. The power supply device of a rotor monitoring system of a hydro-generator as defined in claim 1, wherein: the wind turbine generator further comprises a transformation rectifying unit fixedly arranged on the generator, the generator and the rotor monitoring system are electrically connected with the transformation rectifying unit, and the transformation rectifying unit is used for providing required alternating current power supply voltage and direct current power supply voltage for the rotor monitoring system.
8. The power supply device of a rotor monitoring system of a hydro-generator as defined by claim 7 wherein: the wind turbine generator further comprises a storage battery fixedly arranged on the generator, the rotor monitoring system and the transformation rectifying unit are electrically connected with the storage battery, and the transformation rectifying unit is further used for providing required direct-current charging voltage for the storage battery; the battery is used to provide power to the rotor monitoring system when the generator is shut down.
9. The power supply device of a rotor monitoring system of a hydro-generator as defined in claim 8 wherein: the system also comprises an on-site control unit, wherein the on-site control unit comprises a control console, a controller arranged on the generator and a data acquisition module arranged on the transformation rectifying unit; the data acquisition module and the controller are both in wireless communication connection with the console;
the controller is used for controlling the start and stop of the generator and sending start and stop state information of the generator to the control console; the data acquisition module is used for acquiring the alternating current power supply voltage information, the direct current power supply voltage information and the direct current charging voltage information of the transformation rectifying unit and sending the information to the control console;
the control console is used for controlling the controller, a display screen is arranged on the control console, and the display screen is used for displaying the start-stop state of the generator, and the alternating current power supply voltage value, the direct current power supply voltage value and the direct current charging voltage value output by the transformation rectifying unit in real time according to the working state information, the alternating current power supply voltage information, the direct current power supply voltage information and the direct current charging voltage information received by the control console;
the controller and the data acquisition module are electrically connected with the storage battery, and the storage battery is also used for providing power for the data acquisition module and the controller.
10. The power supply device of a rotor monitoring system of a hydro-generator as defined in claim 9 wherein: the local control unit further comprises an early warning monitoring unit arranged on the control console, and the early warning monitoring unit is electrically connected with the display screen;
the early warning monitoring unit is used for monitoring the alternating current power supply voltage information, the direct current power supply voltage information and the direct current charging voltage information in real time according to the control console when the rotating speed of the rotor exceeds a preset rotating speed, and sending fault information to the display screen when at least one of the alternating current power supply voltage value exceeds a first preset voltage range, the direct current power supply voltage value exceeds a second preset voltage range and the direct current charging voltage value exceeds a third preset voltage range is monitored; the display screen is also used for sending out acousto-optic early warning according to the received fault information.
CN202311592212.9A 2023-11-27 2023-11-27 A power supply device for a rotor monitoring system of a hydro-generator Pending CN117856530A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311592212.9A CN117856530A (en) 2023-11-27 2023-11-27 A power supply device for a rotor monitoring system of a hydro-generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311592212.9A CN117856530A (en) 2023-11-27 2023-11-27 A power supply device for a rotor monitoring system of a hydro-generator

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025235182A1 (en) * 2024-05-06 2025-11-13 Martin Harris Apparatus to convert hydrokinetic energy into electrical energy

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025235182A1 (en) * 2024-05-06 2025-11-13 Martin Harris Apparatus to convert hydrokinetic energy into electrical energy
US12601321B2 (en) 2024-05-06 2026-04-14 Martin Harris Apparatus to convert hydrokinetic energy into electrical energy

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