KR102082349B1 - Multi wind power generator and renewable energy system including the generator - Google Patents

Abstract

Multiple wind generators are disclosed. This multi-wind turbine has a vertically oriented support, a circular upper frame fixed to the support, a circular lower frame fixed to the support at intervals below the upper frame, and an equal distance along the circumference of the support between the upper frame and the lower frame. Are arranged in the same direction and all have the same structure to rotate in the same direction and include at least three or more rotors for independent wind power generation.

Description

Multi wind power generator and renewable energy system including the same {Multi wind power generator and renewable energy system including the generator}

Disclosed are a wind turbine and a renewable energy power management technology produced by a wind turbine.

Korean Patent Publication No. 10-2010-0121031 discloses a multiple renewable energy collection device. The self-generating device according to this publication can generate electricity by collecting two or more renewable energies such as solar cells, vibration energy, and thermal energy, and may store electrical energy for a period of time including a battery or a super capacitor.

On the other hand, Korean Patent Publication No. 10-1061315 discloses a wind power generator that varies the air resistance according to the wind speed. The wind turbine according to this publication can produce power even in the strong winds such as typhoons as the rotor blades are folded according to the difference in wind speed.

Disclosed are multiple wind generators capable of increasing renewable energy production performance.

In addition, a renewable energy power management apparatus capable of managing a plurality of separately produced renewable energy and supplying to loads having different operating power sources is disclosed.

The multiple wind turbine according to one aspect has a vertically oriented support, a circular upper frame fixed to the support, a circular lower frame fixed to the support at intervals below the upper frame, and a support circumference between the upper frame and the lower frame. And are arranged at equal intervals and all have the same structure to rotate in the same direction and include at least three or more rotors for independent wind power generation.

According to one aspect, each of the rotating body is rotatably coupled to the upper frame, the upper end is rotatably coupled to the lower frame, and a plurality of blades arranged along the circumference of the rotating shaft part connected to the rotation axis Can include them.

According to one aspect, the plurality of blades of the rotating body may be formed curved along the circumferential direction of the rotation axis.

According to one aspect, the plurality of blades of the rotating body may be arranged at equal intervals along the circumferential direction of the rotation axis.

According to one aspect, the number of blades may be four.

On the other hand, the renewable energy system according to an aspect includes a multi-wind generator, and a renewable energy power management device for receiving a plurality of electrical energy from the multi-wind generator to supply the battery charge and load. The renewable energy power management device includes a plurality of wind energy input units for receiving a plurality of electrical energy, a plurality of AC / DC converters for converting AC electricity input through a plurality of wind energy input units into direct current electricity, and a plurality of AC / DC currents. Serial or parallel connection to connect the output power of the converter in series or parallel or mixed in series and parallel, the output of the charging and discharging part, the parallel and parallel connection to charge one or more batteries with the output power of the serial and parallel connection Controlling the direct and parallel connection of the plurality of DC / DC conversion unit for supplying the load to the corresponding load through the output port by converting the power discharged by the power or the charge and discharge unit to the corresponding operating power, and the charge and discharge of the charge and discharge unit It includes a control unit.

According to one aspect, the controller may include an output intermittent control unit for intermittent operation power supply for each output port.

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

As disclosed, it is possible to increase renewable energy production performance, and to efficiently manage and supply control a plurality of renewable energies.

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

The foregoing and further aspects of the present invention will become more apparent through the preferred embodiments described with reference to the accompanying drawings. Hereinafter, the present invention will be described in detail to enable those skilled in the art to easily understand and reproduce the present invention.

1 is a block diagram of a renewable energy control management apparatus according to an embodiment, Figure 2 is a block diagram of the control unit shown in FIG. As shown in FIG. 1, the regenerative energy control management apparatus includes an input unit 100, an input conversion unit 200, a series-parallel connection unit 300, a charge / discharge unit 400, a battery unit 500, and an output conversion unit 600. ) And the control unit 700. Furthermore, the renewable energy control management apparatus may further include an output intermitter 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 inputs are wind generator inputs 110, 120, 130, 140 that receive electrical energy from the wind generator. The AC / DC converters 210, 220, 230, and 240 convert AC electricity input from the wind power generator inputs 110, 120, 130, and 140 into DC electricity. The serial / parallel connection unit 300 serially connects output power of the plurality of AC / DC conversion units 210, 220, 230, and 240. Here, the serial-to-parallel connection means that the output power is connected in series or in parallel, or mixed in series and in parallel. The serial-parallel connection unit 300 is connected in parallel to the plurality of AC / DC converters 210, 220, 230, and 240 under software control of the controller 700, and the serial-parallel connection unit 300 is connected according to the serial-to-parallel connection. ), The output power 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 electrical energy input to the solar energy input unit 150 is a direct current, the solar energy input unit 150 outputs the input electrical energy to the serial-parallel connection unit 300 as it is.

The charging and discharging unit 400 charges the battery of the battery unit 500 by the output power of the serial and parallel connection unit 300. In addition, the charge / discharge unit 400 may 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. 1. The output converter 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 input DC power into operation power for supplying a load. The operating power, that is, the output power of the DC / DC converters 610, 620, 630, 640, and 650 may be different. For example, the output power of the DC / DC converter # 1 610 and the DC / DC converter # 2 620 is 5V, and the DC / DC converter # 3 630 and the DC / DC converter # 4. The output power of 640 is 12V, and the output power of DC / DC converter # 5 650 is 24V. 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, 650 is connected to the 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 large number of loads using 5 V as an operating power source. Alternatively, the number of DC / DC converters that output 5V power as much as the number of loads using 5V as an operating power source can be configured. Alternatively, a plurality of DC / DC converters configured to output 5V power may be configured, and some may be configured to be connected to a plurality of output ports.

The controller 700 may be a micro processing unit (MPU), and may control the overall apparatus. The control unit 700 may control the serial and parallel connection of the serial-to-parallel connection unit 300 by software, and generate operating power according to the input range of the DC / DC conversion units 610, 620, 630, 640, and 650. The step-up or step-down level for the bet can be adjusted. In addition, the control unit 700 may control the charging and discharging of the charging and discharging unit 400. The output intermittent unit 800 controls the output power of the output converter 600 for each output port under the control of the controller 700. By the output intermittent part 800, the operating power is supplied to the load or cut off through the output port. In one embodiment, the output intermittent portion 800 is composed of a switching element provided at the front end for each output port. Therefore, the operating power is supplied or not supplied to the load according to the switching of the switching element for each output port.

The user input unit 910 is a component for inputting a user 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 unit 940 may include one or more nonvolatile memories.

As illustrated in FIG. 2, the control unit 700 includes an output control unit 710. The output intermittent control unit 710 outputs a control signal to the output intermitter 800 to control the operation power supply to the load for each output port. In one embodiment, the output intermittent control unit 710 interrupts the operation power supply according to the power supply scheduling for each output port. 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 may be received through the communication unit 930. According to the power supply scheduling for each output port, it is possible to reserve supply of operating power for each output port, so that power can be supplied only when necessary, thereby increasing power efficiency.

In addition, the controller 700 may further include a data collector 720. The data collector 720 collects data of a data logger. For example, the data collector 720 receives data from the external data logger through the communication unit 930. The data collector 720 may request and receive data by accessing the data logger through the communication unit 930, or may transfer the data logger to the data collector 720 periodically or whenever an event occurs. The data logger may be to accumulate weather related data such as temperature or humidity. The event may be, for example, a sudden change in temperature or humidity, or a deviation from a preset value. In one embodiment, the output intermittent control unit 710 regulates the operation power supply for each output port based on the collected data of the data collector 720. For example, if the collected data means that the probability of raining is scarce, the output intermittent control unit 710 intercepts the operation power supply of the output port connected to the rainfall sensor which is the load associated therewith.

In addition, the control unit 700 may further include a power generation measurement unit 730 and a serial-to-parallel connection control unit 740, and may further include an output conversion control unit 750. The power generation measurement unit 730 may measure a current level or a voltage level produced for each generator. The power generation measurement unit 730 may measure the output power of the AC / DC converters 210, 220, 230, and 240 of the input converter 200, and in the case of solar energy, the Te Yang photovoltaic energy input unit 150. The output power of can be measured. To this end, an ammeter or a voltmeter may be configured at an output terminal of the AC / DC converters 210, 220, 230, and 240 and an output terminal of the solar energy input unit 150. The serial / parallel connection control unit 740 serially connects the output power of the plurality of AC / DC conversion units 210, 220, 230, and 240 according to the measurement result of the power generation measurement unit 730. Since the output power of the AC / DC converters 210, 220, 230, and 240 may not be the same and may be different, the serial / parallel connection control unit 740 controls the serial / parallel connection according to the measurement result of the power generation measurement unit 730. This allows target power to be generated.

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

On the other hand, the power supplied to the load may be the power of the battery unit 500, it may be a power that is produced in real time by the generators without being charged in the battery unit 500. The control unit 700 may control the charge / discharge unit 400 to output the power of the battery unit 500 to the output converter 600, and the output of the serial / parallel connection unit 300 may be output by the output converter 600. It can also be controlled to be input. In addition, the controller 700 may control at least one battery by adding at least one battery power in addition to the output power of the AC / DC converters. In this case, when the power produced in real time is not enough to supply the loads, the battery power is used by the amount that is insufficient.

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

3 is a perspective view of a multiple wind turbine according to an embodiment, FIG. 4 is a plan view of the multiple wind generator, and FIG. 5 is a perspective view of a rotating body according to an embodiment. As shown in FIG. 3, the multiple wind turbines are integrated by connecting a plurality of small wind turbines. It is possible to install up to two or six generators depending on the amount of power required, and more. 3 illustrates the shape of a multiple wind turbine with four generators integrated.

The multiple wind turbine includes a support 10, a vertical frame 20, a lower frame 30, and a plurality of rotors 40, which are set up vertically. The upper frame 20 is fixed to the 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 10 at intervals below the upper frame 20, and may be fixedly connected to the support 10 by a connecting member as illustrated in FIG. 3. The upper frame 20 and the lower frame 30 may have the same shape and size, and may be circular. Rotors 40 are each for independent wind power generation, is arranged along the periphery of the support 10 between the upper frame and the lower frame.

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

As described above, according to the multiple wind power generator in which the plurality of blades 42, 43, 44, and 45 having the curved shape on the same horizontal line are arranged, more efficient power generation is possible even when the wind blows in any direction. The utilization of wind bone further increases the power generation efficiency. In addition, it is possible to implement low noise with a compact blade type compared to the same capacity.

Renewable energy power management device and the multiple wind generator according to the above constitutes a renewable energy system. So far I looked at the center of the preferred embodiment for the present invention. Those skilled in the art will appreciate that the present invention can be implemented in a modified form without departing from the essential features of the present invention. Therefore, the disclosed embodiments should be considered in descriptive sense only and not for purposes of limitation. The scope of the present invention is shown in the claims rather than the foregoing description, and all differences within the scope will be construed as being included in the present invention.

10: support 20: upper frame
30: lower frame 40: rotating body
41: rotating shaft portion 42, 43, 44, 45: blade
100: input unit 110, 120, 130, 140, 150: wind energy input unit
200: input converter 210, 220, 230, 240, 250: AC / DC converter
300: series and parallel connection 400: charge and discharge
500: battery unit 510, 520, 530, 540: battery
600: output converter 610, 620, 630, 640, 650: DC / DC converter
700: control unit 710: output control unit
720: data acquisition unit 730: power generation measurement unit
740: serial and parallel connection control unit
750: output conversion control unit 800: output control unit
910: user input unit 920: display unit
930: communication unit 940: storage unit

Claims (8)

Vertically mounted supports;
A circular upper frame fixed to the support;
A circular lower frame fixed to the support at intervals below the upper frame; And
Independent wind power generation between the upper frame and the lower frame, arranged at equal intervals along the circumference of the support to form windbones in the center of the support circumference and all rotate in the same direction, and can be installed by adjusting the number according to the amount of power required At least three or more rotors;
Multiple wind turbine comprising a.
The method of claim 1 wherein each rotor is:
An upper end rotatably coupled to the upper frame and a lower end rotatably coupled to the lower frame; And
A plurality of blades arranged along the periphery of the rotational shaft portion and connected to the rotational shaft portion;
Multiple wind turbine comprising a.
The method of claim 2,
The plurality of blades of the rotating body is formed to be curved along the circumferential direction of the rotation axis of the multiple wind turbine.
The method of claim 3, wherein
The plurality of blades of the rotor is arranged at equal intervals along the circumferential direction of the axis of rotation.
The method of claim 4, wherein
Multiple wind turbine with four blades.
Multiple wind power generator according to any one of claims 1 to 5; And
Renewable energy power management device for receiving a plurality of electrical energy from the multiple wind generators to supply the battery charging and load; including,
Renewable power management devices are:
A plurality of wind energy input unit for receiving a plurality of electrical energy;
A plurality of AC / DC converters for converting AC electricity input through a plurality of wind energy input units into DC electricity;
A serial / parallel connection unit for connecting the output powers of the plurality of AC / DC converters in series connection or in parallel or in a mixed connection in series and in parallel;
A charge / discharge unit configured to charge one or more batteries with an output power of a serial / parallel connection unit, and to discharge the charged power;
A plurality of DC / DC converters for converting the output power of the serial / parallel connection unit or the power discharged by the charge / discharge unit into the corresponding operating power and supplying the load to the corresponding load through the output port;
A control unit for controlling the serial and parallel connection of the parallel and parallel connection unit charge and discharge; And
A storage unit including one or more nonvolatile memories to store power supply scheduling information for each output port;
Including but not limited to:
The control unit includes a renewable energy control unit for controlling the operation power supply according to the power supply scheduling information stored in advance for each output port.
delete The method of claim 6,
The control unit further comprises a serial-to-parallel connection control unit for measuring the output of the plurality of AC / DC conversion unit, and control the serial-to-parallel connection of the serial-to-parallel connection unit according to the measurement result.

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