KR20170062423A - Multi wind power generator and renewable energy system including the generator - Google Patents

Abstract

A multiple wind power generator is disclosed. The multiple wind turbine generator includes a vertically erected support, a circular upper frame secured to the support, a circular lower frame spaced below the upper frame and secured to the support, And has at least three or more rotors for independent wind power generation having the same structure to rotate all in the same direction.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a multi-wind power generator and a renewable energy system including the multi-

A renewable energy power management technique produced by a wind power generator and a wind power generator is disclosed.

Korean Patent Laid-Open No. 10-2010-0121031 discloses a multiple regenerative energy collecting device. The self-power generation apparatus according to this publication can generate electricity by collecting two or more renewable energies such as a solar cell, vibration energy, and thermal energy, and can store electric energy for a certain period of time including a battery or a supercapacitor.

On the other hand, Korean Patent Publication No. 10-1061315 discloses a wind turbine having different air resistance according to the wind speed. The wind turbine according to this publication can generate power without difficulty even in the case of a strong wind such as a typhoon because the rotating blades are folded according to the difference in wind speed.

A multiple wind turbine generator capable of enhancing renewable energy production performance is disclosed.

Also disclosed is a regenerative energy power management apparatus capable of managing a plurality of separately produced renewable energies and supplying them to loads having different operating power sources.

In accordance with one aspect, a multiple wind turbine generator includes a vertically erected support, a circular upper frame secured to the support, a circular lower frame spaced below the upper frame and secured to the support, and a support around the support between the upper frame and the lower frame And have at least three or more rotors for independent wind power generation having the same structure and arranged so as to rotate in the same direction.

According to an aspect of the present invention, each of the rotating bodies includes a rotating shaft portion whose upper end is rotatably coupled to the upper frame and whose lower end is rotatably coupled to the lower frame, and a plurality of blades arranged along the circumference of the rotating shaft portion, Lt; / RTI >

According to one aspect, the plurality of blades of the rotating body may be curved along the circumferential direction of the rotating shaft portion.

According to one aspect, the plurality of blades of the rotating body may be arranged at regular intervals along the circumferential direction of the rotating shaft portion.

According to an aspect, the number of the plurality of blades can be four.

Meanwhile, a renewable energy system according to an aspect includes a multiple wind turbine generator, and a renewable energy power management device that receives a plurality of electric energy from a plurality of wind turbine generators, and supplies the battery to a battery charge and load. The regenerative energy power management apparatus includes a plurality of wind energy input units for receiving a plurality of electric energy, a plurality of AC / DC conversion units for converting the AC electric power input through the plurality of wind energy input units into DC electricity, a plurality of AC / A series-parallel connection unit for connecting the output power of the conversion unit in series connection or parallel connection, or mixing and connecting in series and parallel connection, a charging unit charging the one or more batteries with the output power of the serial-parallel connection unit and discharging the charged power, A plurality of direct current / direct current converters for converting a power source discharged from a power source or a charge / discharge unit into a corresponding operation power source and supplying the power to the load through an output port, and a control unit for controlling the direct / parallel connection of the series / And a control unit.

According to an aspect, the control unit may include an output intermittence control unit for interrupting the operation power supply for each output port.

According to an aspect, the control unit may include a serial-parallel connection control unit for measuring outputs of the plurality of AC / DC conversion units and controlling the serial-parallel connection of the serial-parallel connection unit according to the measurement result.

According to the disclosed method, it is possible to improve the production performance of the renewable energy, and efficiently manage and control the supply of a plurality of renewable energies.

1 is a block diagram of a regenerative energy control management apparatus according to an embodiment.
2 is a block diagram of the control unit shown in FIG.
3 is a perspective view of a multiple wind turbine generator according to one embodiment.
4 is a plan view of a multiple wind turbine.
5 is a perspective view of a rotating body according to an embodiment.

BRIEF DESCRIPTION OF THE DRAWINGS The foregoing and further aspects of the present invention will become more apparent from the following detailed description of preferred embodiments with reference to the accompanying drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a block diagram of a regenerative energy control management apparatus according to an embodiment, and FIG. 2 is a block diagram of a control unit shown in FIG. 1. Referring to FIG. 1, the regenerative energy control and management apparatus includes an input unit 100, an input conversion unit 200, a series-parallel connection unit 300, a charge and discharge unit 400, a battery unit 500, and an output conversion unit 600 And a control unit 700. [ Further, the regenerative energy control management device may further include an output interrupter 800 and may further include at least one of a user input unit 910, a display unit 920, a communication unit 930, and a storage unit 940 have.

The input unit 100 includes a plurality of renewable energy input units that receive electrical energy from a plurality of renewable energy generators. In one embodiment, the renewable energy input units are wind turbine generators 110, 120, 130, and 140 that receive electrical energy from a wind turbine generator. The AC / DC converters 210, 220, 230, and 240 convert the AC power inputted from the wind power generator inputs 110, 120, 130, and 140 into DC electricity. The series-parallel connection unit 300 connects the output power of the plurality of AC / DC converters 210, 220, 230, and 240 in series-parallel connection. Here, the term "serial parallel connection" means that the output power sources are connected in series or parallel, or in series and parallel. The serial-parallel connection unit 300 connects the plurality of ac / dc converters 210, 220, 230, and 240 in series-parallel connection according to the software control of the controller 700, ) Will be different. In addition, the input unit 100 may further include a solar energy input unit 150 that receives electrical energy from the solar generator. Since the electric energy input to the solar energy input unit 150 is DC, the solar energy input unit 150 outputs the input electric energy directly to the serial-parallel connection unit 300. [

The charging unit 400 charges the battery of the battery unit 500 with the output power of the serial-parallel connection unit 300. In addition, the charging unit 400 can supply power to the load by discharging the power charged in the battery of the battery unit 500. [ The battery unit 500 includes one or more batteries, and may include a plurality of batteries 510, 520, 530, and 540 as illustrated in FIG. The output conversion unit 600 includes a plurality of DC / DC converters 610, 620, 630, 640 and 650. Each of the plurality of DC / DC converters 610, 620, 630, 640 and 650 converts the input DC power into an operating power for supplying the load. The operation power of the DC / DC converters 610, 620, 630, 640 and 650, that is, the output power may be different. For example, the output power of the DC / DC converter # 1 610 and the DC / DC converter # 2 620 is 5 V and the DC / DC converter # 3 630 and the DC / The output power of the DC / DC converter # 6 650 is 12 V, and the output power of the DC / DC converter # 5 650 is 24 V. The output power of the DC / DC converters 610, 620, 630, 640 and 650 is supplied to the load through the corresponding output port. In one embodiment, at least one of the DC / DC converters 610, 620, 630, 640 and 650 is connected to a plurality of output ports. For example, the DC / DC converter # 1 610 may be connected to a plurality of output ports in consideration of a case where a load of 5V is used as an operating power. Or the number of DC / DC converters for outputting a 5V power source for the number of loads whose operation power source is 5V. Or a plurality of DC / DC converters for outputting 5V power, but some of them may be connected to a plurality of output ports.

The control unit 700 may be a micro processing unit (MPU), and may control the entire apparatus. The control unit 700 can control the series-parallel connection of the serial-parallel connection unit 300 by software and generates operating power according to the input ranges of the DC / DC converters 610, 620, 630, 640 and 650 It is possible to adjust the step-up level or step-down level for betting. In addition, the controller 700 can control the charging / discharging of the charging / discharging unit 400. The output interrupter 800 interrupts the output power of the output converter 600 for each output port under the control of the controller 700. The output interruption unit 800 causes the operation power to be supplied to the load or to be interrupted by the output port. In one embodiment, the output interrupter 800 comprises a switching element provided at the output end of each output port. Therefore, operating power is not supplied or supplied to the load in accordance with the switching of the switching element for each output port.

The user input unit 910 is configured for a user input such as a keypad or a touch pad, and the display unit 920 may be a display having a touch pad. The communication unit 930 includes one or more communication interfaces. In one embodiment, the communication unit 930 includes a USB terminal, a serial terminal, and an Ethernet terminal. It may also include a communication interface capable of wireless network connection. The storage 940 may include one or more non-volatile memory.

As illustrated in FIG. 2, the control unit 700 includes an output intermittent control unit 710. The output intermittence control unit 710 outputs a control signal to the output intermittent unit 800 for interrupting supply of operating power to the load for each output port. In one embodiment, the output intermittence control unit 710 interrupts the operation power supply according to the power supply scheduling for each output port. The power supply scheduling information for each output port may be stored in the storage unit 940 in advance. The power supply scheduling information for each output port stored in the storage unit 940 may be input through the user input unit 910 or received through the communication unit 930. According to the power supply scheduling for each output port, the operation power can be reserved for each output port, so that the power supply can be supplied only for the required time, and the power efficiency is increased.

In addition, the control unit 700 may further include a data collecting unit 720. The data collecting unit 720 collects data of a data logger. For example, the data collecting unit 720 receives data from an external data logger through the communication unit 930. The data collecting unit 720 may access the data logger through the communication unit 930 to request and receive data and may transmit the data to the data collecting unit 720 periodically or whenever the event occurs. The data logger may be accumulating weather related data such as temperature or humidity. Examples of the event include an abrupt change in temperature or humidity, or a deviation from a predetermined value. In one embodiment, the output intermittence control unit 710 interrupts the operation power supply for each output port based on the collected data of the data collecting unit 720. For example, if the collected data indicates that the probability of rain is low, the output intermittence control unit 710 interrupts the operation power supply of the output port connected to the rainfall sensor, which is a load related thereto.

In addition, the controller 700 may further include a power generation unit 730 and a serial / parallel connection controller 740, and may further include an output conversion controller 750. The power generation measuring unit 730 can measure the current level or the voltage level produced by the generator. The power generation measuring unit 730 can measure the output power of the AC / DC converters 210, 220, 230 and 240 of the input converting unit 200. In the case of solar energy, Can be measured. To this end, an ammeter or a voltmeter may be configured at the output of the AC / DC converters 210, 220, 230, 240 and at the output of the solar energy input 150. The series-parallel connection control unit 740 connects the output power of the plurality of AC / DC converters 210, 220, 230, and 240 in series-parallel according to the measurement result of the power generation measuring unit 730. Since the output power of the AC / DC converters 210, 220, 230 and 240 is not the same and may be different, the serial-parallel connection controller 740 controls the serial-parallel connection in accordance with the measurement result of the power- So that the target power can be generated.

The output conversion controller 750 may also control the output conversion of the plurality of DC / DC converters 610, 620, 630, 640, and 650 according to the measurement result of the power measurement unit 730. The output power of the input unit 100 is variable, and the power input to the output conversion unit 600 may be variable. Therefore, the output conversion control unit 750 can control the step-up level or the step-down level of the DC / DC converters 610, 620, 630, 640 and 650 according to the input power range of the output converter 600.

The power supplied to the load may be a power source of the battery unit 500 or a power source generated by the generators without being charged in the battery unit 500. The control unit 700 may control the charging unit 400 to output the power of the battery unit 500 to the output converting unit 600. The output of the serial- And may be controlled to be an input. Also, the control unit 700 may control serial-parallel connection by adding at least one battery power in addition to the output power of the AC / DC converters. In this case, if the power generated in real time is insufficient to supply to the loads, the battery power is used for the insufficient amount.

Meanwhile, the controller 700 may output the input voltage value to the display unit 920 for each generator, perform the corresponding control according to the remote control command received through the communication unit 930, and check the state of the apparatus It can also function. In addition, when the battery is fully charged, it is also possible to automatically shut off charging to discharge surplus power.

FIG. 3 is a perspective view of a multiple wind turbine according to an embodiment, FIG. 4 is a plan view of a multiple wind turbine generator, and FIG. 5 is a perspective view of a rotor according to an embodiment. As shown in FIG. 3, the multiple wind turbine generator is formed by connecting a plurality of small wind turbine generators together. Depending on the amount of power generation required, it is possible to install two to six generators, and more is possible. Fig. 3 illustrates the shape of a multiple wind turbine in which four generators are integrated.

The multiple wind turbine generator includes a vertically erected support 10, an upper frame 20, a lower frame 30, and a plurality of rotors 40. The upper frame 20 is fixed to a support, which may be fixedly connected to the support 10 by a connecting member as illustrated in FIG. The lower frame 30 is fixed to the support frame 10 at a distance below the upper frame 20 and may be fixedly connected to the support frame 10 by a connecting member as illustrated in FIG. The upper frame 20 and the lower frame 30 may have the same shape and size, and may be circular. The rotating bodies 40 are for independent wind power generation, and are arranged along the periphery of the support 10 between the upper frame and the lower frame.

Each of the rotating bodies 40 includes a rotating shaft 41 and a plurality of blades 42, 43, 44, 45. The upper end of the rotary shaft 41 is rotatably coupled to the upper frame, and the lower end of the rotary shaft 41 is coupled to the lower frame. The blades 42, 43, 44, 45 connected to the rotation shaft portion 41 are arranged along the circumference of the rotation shaft portion 41. In one embodiment, the blades 42, 43, 44, 45 integrally formed with the rotary shaft portion 41 are formed to be curved along the circumferential direction of the rotary shaft portion 41. The blades 42, 43, 44, and 45 may be equally spaced along the circumferential direction of the rotary shaft 41.

As described above, according to the multiple wind turbine generator in which a plurality of blades 42, 43, 44, 45 having a curved shape on the same horizontal plane are arranged, more efficient power generation is possible even if the wind is blown in any direction, The efficiency of the power generation is further increased by the utilization of the wind corrugation. In addition, it is possible to realize low noise with a compact blade type compared to the same capacity.

The regenerative energy power management system and multiple wind power generators constitute a renewable energy system. The present invention has been described with reference to the preferred embodiments. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the disclosed embodiments should be considered in an illustrative rather than a restrictive sense. The scope of the present invention is defined by the appended claims rather than by the foregoing description, and all differences within the scope of equivalents thereof should be construed as being included in the present invention.

10: support frame 20: upper frame
30: lower frame 40: rotating body
41: rotation shaft portion 42, 43, 44, 45: blade
100: input unit 110, 120, 130, 140, 150: wind energy input unit
200: input conversion unit 210, 220, 230, 240, 250: AC /
300: serial / parallel connection unit 400:
500: battery part 510, 520, 530, 540: battery
600: output conversion unit 610, 620, 630, 640, 650: DC /
700: control unit 710: output intermittent control unit
720: Data collecting unit 730: Power generation measuring unit
740: serial / parallel connection control unit
750: output conversion control unit 800: output interrupting unit
910: user input unit 920:
930: communication unit 940:

Claims (8)

A vertically erected support;
A circular upper frame fixed to the support;
A circular lower frame fixed to the support frame at an interval below the upper frame; And
At least three rotors for independent wind power generation having the same structure and arranged to be equally spaced along the circumference of the support between the upper frame and the lower frame and to rotate in all the same directions;
And a plurality of wind turbines.
2. The method of claim 1 wherein each rotating body comprises:
A rotation shaft portion rotatably coupled to the upper frame at an upper end thereof and rotatably coupled to the lower frame at a lower end thereof; And
A plurality of blades arranged along the circumference of the rotary shaft portion and connected to the rotary shaft portion;
And a plurality of wind turbines.
3. The method of claim 2,
Wherein the plurality of blades of the rotating body are curved along the circumferential direction of the rotating shaft portion.
The method of claim 3,
Wherein the plurality of blades of the rotating body are equally spaced along the circumferential direction of the rotating shaft portion.
5. The method of claim 4,
Multiple wind turbines with four blades.
6. A wind turbine comprising: a plurality of wind turbines according to any one of claims 1 to 5; And
And a renewable energy power management device for receiving a plurality of electric energy from the multiple wind power generators, charging the battery, and supplying the loads to the load,
Renewable energy power management device is:
A plurality of wind energy input units receiving a plurality of electric energy;
A plurality of ac / dc converters for converting ac power input through a plurality of wind energy input units into dc electricity;
A series-parallel connection unit for series-connecting or parallel-connecting the output power sources of the plurality of AC / DC converters or mixing and connecting the series-parallel and parallel-connected output power supplies;
A charging unit charging the one or more batteries with the output power of the series-parallel connection unit and discharging the charged power;
A plurality of DC / DC converters converting an output power of the series-parallel connection part or a power source discharged by the charging part into a corresponding operation power and supplying the power to the corresponding load through an output port; And
A control unit for controlling the series-parallel connection of the series-parallel connection unit and the charge-discharge of the charge-discharge unit;
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7. The apparatus of claim 6, wherein the control unit comprises:
An output intermittent control unit for interrupting an operation power supply for each output port;
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7. The apparatus of claim 6, wherein the control unit comprises:
A serial-parallel connection control unit for measuring outputs of a plurality of AC / DC conversion units and controlling serial-parallel connection of the series-parallel connection unit according to a measurement result;
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