CN111917348B - Intelligent power generation equipment - Google Patents
Intelligent power generation equipment Download PDFInfo
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- CN111917348B CN111917348B CN201910381754.9A CN201910381754A CN111917348B CN 111917348 B CN111917348 B CN 111917348B CN 201910381754 A CN201910381754 A CN 201910381754A CN 111917348 B CN111917348 B CN 111917348B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
Abstract
The invention provides intelligent power generation equipment, which can adjust the number and the combination of generator units used for generating power in real time through the magnitude of mechanical power input from the outside and the corresponding rotating speed of a main shaft, and can reduce the requirement on a mechanical power source when the intelligent power generation equipment is started as much as possible; after the intelligent power generation equipment is started or when a mechanical power source fluctuates, the number and the combination of the generator units which are put into power generation are adjusted in real time according to the speed change condition of the main shaft, the rotating speed of the intelligent power generation equipment is controlled within a preset deviation range around a rated rotating speed, and accordingly, the output voltage fluctuation value of direct current type intelligent power generation equipment or the power generation frequency fluctuation value of alternating current type intelligent power generation equipment is controlled within the preset deviation range, and the conversion rate of converting external mechanical driving force into electric power is enabled to be the highest. Meanwhile, the material and manufacturing cost of the power generation equipment is greatly reduced, and the technical difficulty and cost of a post-processing unit of the generated power are greatly reduced.
Description
Technical Field
The invention relates to the technical field of power generation equipment, in particular to intelligent power generation equipment.
Background
At present, the technology of generating electricity by driving a generator with mechanical energy is commonly used, and the types and styles of the corresponding generators and generating equipment are diversified. However, how to convert other forms of energy such as wind energy, heat energy, nuclear energy, etc. into electric energy more efficiently is still one of the targets that people continuously explore and pursue.
A common hydroelectric generation system usually uses a water turbine to drive a generator to generate electricity, so as to convert the potential energy of water into mechanical energy and then into electric energy; the wind power generation system is also usually a windmill to drive a generator to generate electricity, so that wind energy is converted into mechanical energy and then into electric energy; in thermal power generation, a turbine drives a generator to convert thermal energy into mechanical energy and then into electrical energy. The generator is used for inputting mechanical energy and outputting electric energy to complete conversion of the mechanical energy and the electric energy.
For water conservancy power generation and thermal power generation, the amount of generated energy, the conversion efficiency and the utilization rate of energy are controlled by controlling the amount of supplied water or controlling the size of thermal power easily.
However, for some situations where the original energy is not controllable, for example, the wind power of the wind field where the wind power generator is located, the wind may not reach the starting wind speed of the system, the windmill cannot rotate, the generator cannot generate electricity, the wind energy cannot be utilized, and when the wind is too large and exceeds the safe wind speed of the system, the system may be damaged. In order to prevent damage, the system must be added with corresponding safety measures such as wind sheltering and braking and corresponding equipment, and therefore, a large amount of cost is added.
In addition, after the wind speed is higher than the starting wind speed of the system, the rotating speed of the windmill changes along with the wind power, when the wind speed is low, and when the wind speed is high, the rotating speed of the windmill is high, so that the rotating speed of the rotor of the generator is relatively stable, the output voltage or frequency of the generator is relatively stable, the subsequent links of electricity storage, power transformation, internet surfing and the like are easy to work, and only a speed change device and the like can be added between the windmill and the generator, so that the complexity of complete equipment is increased, the cost of the equipment is greatly increased, and the power generation equipment capable of reducing the material cost and the manufacturing cost of the power generation equipment is lacked.
Disclosure of Invention
The invention provides an intelligent power generation device, which is used for reducing the material cost and the manufacturing cost of the power generation device.
The invention provides an intelligent power generation device, comprising: a plurality of generator units, a main shaft, a rotating speed sensor and an intelligent load controller,
each generator unit is connected with an electric power post-processing unit one by one, a rotor of each generator unit is fixed at one end of the main shaft to form a generator set, and the other end of the main shaft is connected with a mechanical power source;
a switch group is arranged between each generator unit and the electric power post-processing unit,
each switch group is further respectively connected with the intelligent load controllers one by one, the intelligent load controllers are further connected with the signal output ends of the rotating speed sensors, and the signal acquisition ends of the rotating speed sensors are connected with the main shaft;
the mechanical power source is used for driving the main shaft to rotate.
Preferably, a plurality of the generator units are adjacently arranged on the main shaft one by one and rotate along with the rotation of the main shaft.
Preferably, each switch group is connected in series between the generator unit and the electric power post-processing unit, and the switch groups are used for controlling the generator unit to switch on a load and output current.
Preferably, the intelligent load controller is used for controlling the opening or closing of each switch group;
the switch group comprises one or more switches, and the switches are implemented as one of relay switches, thyristor switches or solenoid control switches;
when the generator unit is implemented as a single-phase generator or a direct-current generator, one switch of the switch group corresponding to the generator unit is arranged and is connected in series in an output loop of the single-phase generator or the direct-current generator;
when the generator unit is implemented as a three-phase generator, the number of the switches of the switch group is three, and the switches are respectively connected in series in a three-phase output loop of the three-phase generator one by one.
Preferably, the generator unit includes, but is not limited to, one or more of a permanent magnet generator, an excitation generator, a dc generator, an ac generator, a unidirectional generator, and a three-phase generator, and together performs power generation.
Preferably, the method also comprises a power generation method, and comprises the following steps:
after the mechanical power source is started, the main shaft rotates, and the main shaft rotates to drive each generator unit to rotate;
step two, the rotating speed sensor detects the rotating speed of the main shaft and transmits the rotating speed to the intelligent load controller;
step three, the intelligent load controller obtains the rotating speed of the main shaft through the rotating speed sensor and controls the switch group to be switched on or switched off according to the rotating speed of the main shaft;
and fourthly, after the intelligent load controller closes the switch group, the current generated by the generator unit flows to the electric power post-processing unit through the closed switch group.
The working principle and the beneficial effects of the invention are as follows:
the working principle and the beneficial effects are as follows:
when the windmill works, the rotor of the generator unit is fixed on the main shaft, and when the mechanical power source rotates, the main shaft rotates along with the mechanical power source, namely when the windmill blades rotate, the main shaft works; when the main shaft rotates, the generator unit can rotate, a rotating power source can be converted into electric energy after the generator unit rotates, and the electric energy is transmitted to the electric power post-processing unit through the switch group;
the rotation speed sensor is used for sensing the rotation speed of the main shaft and transmitting detected rotation speed information to the intelligent load controller, and the intelligent load controller controls each switch group according to the rotation speed of the main shaft to enable the switch groups to be switched off or switched on according to the rotation speed of the main shaft, namely the intelligent load controller is used for controlling the generator units corresponding to the switch groups to be in a load (with current output) or no-load (without current output) state; under the control of the intelligent load controller, each switch group is in an open-circuit state, all corresponding generator units are in an idle state (no current output), and the rotors of the generator units do not generate torque opposite to the driving torque of the main shaft, so that the starting load of the intelligent power generation equipment is minimum, and the main shaft and the rotors of the generator units fixed with the main shaft can be driven to rotate under the action of a mechanical power source as small as possible. In the case where the load of the generator unit is constant, the larger the mechanical power source, the faster the rotational speed, and the smaller the mechanical power source, the lower the rotational speed. Under the condition of a certain mechanical power source, the smaller the load is, the faster the rotating speed is; the heavier the load, the lower the rotational speed.
The intelligent power generation equipment adjusts the number and the combination of the generator units which are used for generating power in real time according to the magnitude of mechanical power input from the outside and the corresponding rotating speed of the main shaft, so that the requirement on the mechanical power source when the intelligent power generation equipment is started can be reduced as much as possible; after the intelligent power generation equipment is started, when the mechanical power source fluctuates, the number and the combination of the generator units which are put into power generation are adjusted in real time according to the speed change condition of the main shaft, so that the rotating speed of the intelligent power generation equipment is controlled within a preset deviation range around the rated rotating speed, and the output voltage fluctuation value of the direct current type intelligent power generation equipment or the power generation frequency fluctuation value of the alternating current type intelligent power generation equipment is correspondingly controlled within the preset deviation range. Thereby maximizing the conversion rate of the external mechanical driving force into the electric power. Meanwhile, the material and manufacturing cost of the power generation equipment is greatly reduced, and the technical difficulty and cost of a post-processing unit (comprising electricity storage, power transformation, voltage stabilization, grid-connected power transmission, self-protection and the like) of the generated power are greatly reduced.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of an intelligent power generation device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second switch group of the intelligent power generation device in the embodiment of the invention;
101-generator unit, 111-main shaft, 201-rotating speed sensor, 202-intelligent load controller, 301-switch group, 401-mechanical power source, 501-electric power post-processing unit, 102-second generator unit, 10N-Nth generator unit, 302-second switch group and 30N-Nth switch group.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it should be understood that they are presented herein only to illustrate and explain the present invention and not to limit the present invention.
According to fig. 1, an embodiment of the present invention provides an intelligent power generation device, including: a plurality of generator units 101, a main shaft 111, a rotation speed sensor 201 and an intelligent load controller 202,
each generator unit 101 is connected with an electric power post-processing unit 501, a rotor of each generator unit 101 is fixed at one end of the main shaft 111 and forms a generator set, and the other end of the main shaft 111 is connected with a mechanical power source 401;
a switch group 301 is arranged between each generator unit 101 and the electric power post-processing unit 501,
each switch group 301 is further connected with the intelligent load controllers 202 one by one, the intelligent load controllers 202 are further connected with the signal output end of the rotating speed sensor 201, and the signal acquisition end of the rotating speed sensor 201 is connected with the main shaft 111;
the mechanical power source 401 is used for driving the main shaft 111 to rotate.
The working principle and the beneficial effects are as follows:
when the windmill works, the rotor of the generator unit is fixed on the main shaft, and when the mechanical power source rotates, the main shaft rotates along with the mechanical power source, namely when the windmill blades rotate, the main shaft works; when the main shaft rotates, the generator unit can rotate, a rotating power source can be converted into electric energy after the generator unit rotates, and the electric energy is transmitted to the electric power post-processing unit through the switch group;
the intelligent load controller is used for controlling each switch group according to the rotating speed of the main shaft, so that the switch groups are switched off or switched on according to the rotating speed of the main shaft, namely the intelligent load controller is used for controlling the generator units corresponding to the switch groups to be in a load (with current output) or no-load (without current output) state; under the control of the intelligent load controller, each switch group is in an open-circuit state, all corresponding generator units are in an idle state (no current output), and the rotors of the generator units do not generate torque opposite to the driving torque of the main shaft, so that the starting load of the intelligent power generation equipment is minimum, and the main shaft and the rotors of the generator units fixed with the main shaft can be driven to rotate under the action of a mechanical power source as small as possible. In the case where the load of the generator unit is constant, the larger the mechanical power source, the faster the rotational speed, and the smaller the mechanical power source, the lower the rotational speed. Under the condition of a certain mechanical power source, the smaller the load is, the faster the rotating speed is; the heavier the load, the lower the rotational speed.
The intelligent power generation equipment adjusts the number and the combination of the generator units which are used for generating power in real time according to the magnitude of mechanical power input from the outside and the corresponding rotating speed of the main shaft, so that the requirement on the mechanical power source when the intelligent power generation equipment is started can be reduced as much as possible; after the intelligent power generation equipment is started, when the mechanical power source fluctuates, the number and the combination of the generator units which are put into power generation are adjusted in real time according to the speed change condition of the main shaft, so that the rotating speed of the intelligent power generation equipment is controlled within a preset deviation range around the rated rotating speed, and the output voltage fluctuation value of the direct current type intelligent power generation equipment or the power generation frequency fluctuation value of the alternating current type intelligent power generation equipment is correspondingly controlled within the preset deviation range. Thereby maximizing the conversion rate of the external mechanical driving force into the electric power. Meanwhile, the material and manufacturing cost of the generating equipment is greatly reduced, and the technical difficulty and cost of a post-processing unit (comprising electricity storage, power transformation, voltage stabilization, grid-connected power transmission, self-protection and the like) of the generated power are greatly reduced.
The rotors of the plurality of generator units 101 are connected to the same main shaft 111, and when the main shaft 111 rotates under the action of the mechanical power source, the rotors of the generator units are driven to rotate together. The current output circuit of each generator unit is connected in series with each switch group controlled by the intelligent load controller 202.
When the main shaft rotates, if the switch group in the current output loop of one of the generator units is closed, the generator unit is in a power generation state, and the corresponding rotor generates torque opposite to the main shaft driving torque;
if the switch group in the current output loop of one of the generator units is disconnected, the generator unit is in a no-load and no-power generation state, and the rotor of the generator unit plays a role of a mechanical flywheel, so that energy storage and the rotation speed stabilization of the main shaft are facilitated.
The main shaft is connected with a windmill main shaft, and the windmill converts wind energy into mechanical energy to drive the main shaft to rotate. Under the condition that the wind sweeping area of the windmill is constant, when the wind power is increased, the driving torque of the main shaft is correspondingly increased, and when the wind power is reduced, the driving torque of the main shaft is correspondingly reduced.
The rotation speed sensor 201 in the intelligent power generation equipment detects the rotation speed of the main shaft 111 under the action of the mechanical power source, and transmits the detected result to the intelligent load controller 202 connected with the main shaft in real time. The intelligent load controller controls one or more groups of switches in the switch group to be switched on or switched off under the action of a preset program according to the rotating speed of the main shaft, so that the corresponding generator units are controlled to generate power with loads or to be in an open circuit and no load state.
The generator unit 101 includes, but is not limited to, one or more of a permanent magnet generator, an excitation generator, a dc generator, an ac generator, a unidirectional generator, and a three-phase generator, and collectively performs power generation. The generator unit is used for converting the force generated by the rotation of the rotating shaft into current.
A power generation method comprises the following steps:
step one, after the mechanical power source 401 is started, the main shaft 111 rotates, and the main shaft 111 rotates to drive each generator unit 101 to rotate;
step two, the rotating speed sensor 201 detects the rotating speed of the main shaft 111 and transmits the rotating speed to the intelligent load controller 202;
thirdly, the intelligent load controller 202 obtains the rotation speed of the main shaft 111 through the rotation speed sensor 201, and controls the switch group to be opened or closed according to the rotation speed of the main shaft 111;
step four, after the intelligent load controller 202 closes the switch group, the current generated by the generator unit 101 flows to the electric power post-processing unit 501 through the closed switch group.
The intelligent load controller comprises a central processing unit, a program memory, a data memory, an input/output interface, a power supply and a power supply management system, wherein the program memory, the data memory, the input/output interface, the power supply and the power supply management system are respectively in communication connection with the central processing unit, the central processing unit is used for controlling the switch group to be opened or closed, the program memory is used for storing preset information, the data memory is used for storing the rotating speed information of the spindle, and the input/output interface is used for inputting and outputting the contents of the data memory and the program memory; the power supply is used for supplying power to the intelligent load controller, and the power management system is used for effectively distributing the power supply of the intelligent load controller, so that the condition that the intelligent load controller stops working due to power failure is reduced.
According to fig. 1, a plurality of generator units 101 are adjacently arranged on the main shaft 111 and rotate along with the rotation of the main shaft 111. The main shaft is rotated by the mechanical power source, and the generator unit rotates along with the main shaft after the main shaft rotates.
The rotation speed sensor 201 is used for detecting the rotation speed of the main shaft 111 and transmitting the detected rotation speed information to the intelligent load controller 202.
Each switch group 301 is connected in series between the generator unit 101 and the power post-processing unit 501, and the switch group 301 is used for controlling the generator unit 101 to switch on a load and output a current. The intelligent load controller 202 is used for controlling the opening or closing of each switch group 301. The intelligent load controller controls the switch to realize the current connection of the generator unit or the disconnection of the electric power post-processing unit.
According to fig. 1 and 2, the switch set 301 comprises one or more switches, and the switches are implemented as one of a relay switch, a thyristor switch, or a solenoid controlled switch;
when the generator unit 101 is implemented as a single-phase generator or a dc generator, one switch of the switch group 301 is provided, and is connected in series to an output circuit of the single-phase generator or the dc generator;
when the generator unit 101 is implemented as a three-phase generator, the number of switches of the switch group 301 is three, and the switches are respectively connected in series in a three-phase output circuit of the three-phase generator.
The generator units 101 may have the same or different power ratings at the rated rotational speed.
The intelligent load controller intelligently adjusts the on-off of the switches 301 to the switches 30N according to a preset scheme and a preset program in real time according to the received main shaft rotating speed information sent from the rotating speed sensor, so that the generator units corresponding to the switches are in a load (with current output) or no-load (without current output) state.
A power generation method comprises the following steps:
after the mechanical power source is started, the main shaft rotates, and the main shaft rotates to drive each generator unit to rotate;
step two, the rotating speed sensor detects the rotating speed of the main shaft and transmits the rotating speed to the intelligent load controller;
thirdly, the intelligent load controller obtains the rotating speed of the main shaft through the rotating speed sensor and sequentially or circularly controls the switch group to be switched on or switched off according to the rotating speed of the main shaft;
step four, the intelligent load controller sequentially or circularly opens or closes the switch groups, and the generator units corresponding to the closed switch groups flow the generated current to the electric power post-processing unit through the closed switch groups; and idling the generator unit corresponding to the disconnected switch group and waiting for the next closing command.
The intelligent power generation equipment is preset with a rated rotating speed and rated rotating speed fluctuation upper limit value and lower limit value, and the rated output voltage of the generator unit and the rated voltage fluctuation upper limit value and lower limit value correspond to the rated rotating speed and the rated rotating speed fluctuation upper limit value and lower limit value; after the main shaft is started, the rotating speed sensor detects the rotating speed of the main shaft in real time and transmits information to the intelligent load controller. When the rotating speed of the main shaft reaches the upper limit value of the rated rotating speed, the intelligent load controller controls the switch group 301 to be closed, so that the generator unit 101 starts to generate power with load;
if the rotating speed still exceeds or exceeds the rated rotating speed fluctuation upper limit again, the intelligent load controller controls the open circuit and the close circuit of the next switch group again to enable the next generator unit to generate power with load, namely, the intelligent load controller controls the open circuit and the close circuit of the second switch group again to enable the second generator unit to generate power with load, and so on until the intelligent load controller controls the open circuit and the close circuit of the Nth switch group again to enable the Nth generator unit to generate power with load, so that the switch groups are circularly or sequentially controlled to control the input of the generator units to generate power;
by analogy, under the control of the intelligent load controller, under the condition that the external power is constant, the main shaft rotating speed is basically controlled between the rated rotating speed and the upper limit and the lower limit of the allowable fluctuation by adjusting the plurality of generator units to be put into power generation in sequence or in a circulating mode. When external power fluctuates and the rotating speed of the main shaft changes along with the fluctuation, the intelligent load controls the number of the generator units which are put into power generation to increase or decrease through the corresponding control switch, and therefore the rotating speed of the main shaft is relatively stable.
When the intelligent power generation equipment is started, all the switch groups are in an open circuit state under the control of the intelligent load controller, all the corresponding power generator units are in an idle load state (no current output), and the rotors of all the power generator units do not generate torque opposite to the driving torque of the main shaft, so that the starting load of the intelligent power generation equipment is minimum, and the main shaft and all the rotors of the power generator units fixed with the main shaft can be driven to rotate under the action of a mechanical power source as small as possible. This means that the mill can be rotated in as small a wind condition as possible.
The intelligent power generation equipment presets a rated rotating speed and a rated rotating speed fluctuation upper limit value and a rated rotating speed fluctuation lower limit value, and the rated output voltage of the power generator unit and the rated voltage fluctuation upper limit value and the rated voltage fluctuation lower limit value correspond to the rated rotating speed and the rated rotating speed fluctuation upper limit value and the rated voltage fluctuation lower limit value. After start-up, the speed sensor 201 detects the spindle speed in real time and transmits the information to the intelligent load controller. When the rotating speed of the main shaft reaches the upper limit value of the rated rotating speed, the intelligent load controller controls the switch group 301 to be closed, so that the generator unit 101 starts to generate power with load; if the rotating speed still exceeds or exceeds the upper limit of the rated rotating speed fluctuation again, the intelligent load controller controls the next switch group to be closed again to enable the next generator unit to generate power with load, and so on, under the control of the intelligent load controller, under the condition that external power is certain, the plurality of generator units are adjusted to generate power (namely, the generated power is adjusted, namely, the torque opposite to the driving torque is adjusted), and the rotating speed of the main shaft is basically controlled between the rated rotating speed and the upper limit and the lower limit of the allowable fluctuation. When external power fluctuates and causes the rotating speed of the main shaft to follow the change, the intelligent load controller controls the number of the generator units which are put into power generation to increase or decrease through the corresponding control switch, and accordingly the magnitude of the reverse torque generated by the generator unit group is correspondingly increased or decreased, and the rotating speed of the main shaft is relatively stable.
The rotation speed of the main shaft detected by the intelligent load controller is utilized, and the switch groups are circularly or sequentially switched off or switched on according to the rotation speed of the main shaft, so that the switching-off or switching-on of the generator units is realized, namely the loaded or unloaded output of the generator units is realized, the intelligent power generation equipment can generate power and can also alternately work on the generator units, the uninterrupted power generation work can be ensured, the service life of the generator units can be prolonged, or the configuration of the generator units is reduced when the intelligent power generation equipment is installed and implemented, and the purpose of generating wind power can be realized through the intelligent power generation equipment provided by the invention, so that the construction materials are effectively reduced, and the construction cost is reduced.
For example, the rated rotation speeds of the generator units are all set to be X Revolutions Per Minute (RPM), the rated power of the generator unit 1 (101) is Y kilowatt (Kw), the rated power of the generator unit 2 (102) and the generator unit 3 (103) is 2 times Y kilowatt (Kw), and the rated power of the generator unit 4 (104) is 5 kilowatts. Thus, when the generator unit group is composed of four generator units, the switch group can be controlled according to the wind power and the rotating speed of the windmill main shaft (the driving torque of the main shaft) under the control of the intelligent load controller to form different combinations, and correspondingly different combinations of generating power are formed to enable the torque generated by the rotors of the generators and the driving torque to be basically balanced above and below the rated rotating speed.
The corresponding relationship between different combinations of switches and the total power of the motor group is shown in the following table 1:
TABLE 1 corresponding relation table of different combinations of switches and total power of motor group
The windmill main shaft torque levels in table 1 correspond to different wind power levels.
The electric power post-processing unit comprises related functions and modules such as alternating current-direct current (AC/DC), power storage, voltage stabilization, inversion (DV/AC), overcurrent protection, overvoltage protection, overheat protection, grid connection and the like. These are all prior art and are well known to those skilled in the art, and may be selected for use as desired, and will not be described herein.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (6)
1. An intelligent power generation device, comprising: a plurality of generator units (101), a main shaft (111), a rotating speed sensor (201) and an intelligent load controller (202),
each generator unit (101) is connected with an electric power post-processing unit (501) one by one, rotors of each generator unit (101) are fixed at one end of the main shaft (111) to form a generator set, and the other end of the main shaft (111) is connected with a mechanical power source (401);
a switch group (301) is arranged between each generator unit (101) and the electric power post-processing unit (501),
each switch group (301) is further connected with the intelligent load controllers (202) one by one, the intelligent load controllers (202) are further connected with the signal output end of the rotating speed sensor (201), and the signal acquisition end of the rotating speed sensor (201) is connected with the main shaft (111);
the mechanical power source (401) is used for driving the main shaft (111) to rotate;
when the mechanical power source rotates, the main shaft rotates along with the mechanical power source, and the main shaft works; when the main shaft rotates, the generator unit can rotate, a rotating power source can be converted into electric energy after the generator unit rotates, and the electric energy is transmitted to the electric power post-processing unit through the switch group;
the intelligent load controller controls each switch group according to the rotating speed of the main shaft, so that the switch groups are switched off or switched on according to the rotating speed of the main shaft;
under the control of the intelligent load controller, each switch group is in an open-circuit state, all corresponding generator units are in an idling state, and the rotor of each generator unit does not generate torque opposite to the driving torque of the main shaft, so that the starting load of the intelligent power generation equipment is minimum.
2. An intelligent power generation device as claimed in claim 1, wherein a plurality of said generator units (101) are arranged one adjacent to the other on said main shaft (111) and rotate together with the rotation of said main shaft (111).
3. An intelligent power generation device as claimed in claim 1, wherein each switch bank (301) is connected in series between the generator unit (101) and the power post-processing unit (501), and the switch banks (301) are used for controlling the generator unit (101) to switch on a load and output current.
4. An intelligent power plant as claimed in claim 1, wherein the intelligent load controller (202) is adapted to control the opening or closing of each of the switch sets (301);
the switch group (301) comprises one or more switches, and the switches are implemented as one of relay switches, thyristor switches or solenoid control switches;
when the generator unit (101) is implemented as a single-phase generator or a direct-current generator, one switch of the corresponding switch group (301) is set and is connected in series in an output loop of the single-phase generator or the direct-current generator;
when the generator unit (101) is implemented as a three-phase generator, the number of the switches of the switch group (301) is three, and the switches are respectively connected in series in a three-phase output loop of the three-phase generator.
5. An intelligent power generation device according to claim 1, wherein the generator unit (101) comprises, but is not limited to, one or more combinations of and is implemented as a permanent magnet generator, an exciter generator, a dc generator, an ac generator, a unidirectional generator and a three-phase generator.
6. An intelligent power generation facility as claimed in any one of claims 1 to 5, further comprising a power generation method comprising the steps of:
after the mechanical power source (401) is started, the main shaft (111) rotates, and the main shaft (111) rotates to drive the generator units (101) to rotate;
step two, the rotating speed sensor (201) detects the rotating speed of the main shaft (111) and transmits the rotating speed to the intelligent load controller (202);
step three, the intelligent load controller (202) obtains the rotating speed of the main shaft (111) through the rotating speed sensor (201), and controls the switch group (301) to be opened or closed according to the rotating speed of the main shaft (111);
fourthly, after the intelligent load controller (202) closes the switch group (301), the current generated by the generator unit (101) flows to the electric power post-processing unit (501) through the closed switch group (301).
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| CN101932829A (en) * | 2008-02-01 | 2010-12-29 | Isis创新有限公司 | Electricity generator |
| CN102444541A (en) * | 2011-11-25 | 2012-05-09 | 沈阳工业大学自控技术研究所 | Control device and control method for compensating torque adjusting delay of wind generating set |
| US20150061298A1 (en) * | 2012-06-28 | 2015-03-05 | General Electric Company | Systems and methods for controlling acceleration of a power generator |
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2019
- 2019-05-08 CN CN201910381754.9A patent/CN111917348B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020014773A1 (en) * | 2000-08-01 | 2002-02-07 | Peter Stricker | Distributed generation drivetrain (DGD) controller for application to wind turbine and ocean current turbine generators |
| CN101228351A (en) * | 2005-07-22 | 2008-07-23 | 歌美飒创新技术公司 | Method of maintaining wind turbine components operational and a turbine comprising components suitable for operational maintenance |
| CN101932829A (en) * | 2008-02-01 | 2010-12-29 | Isis创新有限公司 | Electricity generator |
| CN102444541A (en) * | 2011-11-25 | 2012-05-09 | 沈阳工业大学自控技术研究所 | Control device and control method for compensating torque adjusting delay of wind generating set |
| US20150061298A1 (en) * | 2012-06-28 | 2015-03-05 | General Electric Company | Systems and methods for controlling acceleration of a power generator |
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