KR101454285B1 - Hybrid system for generating power - Google Patents

Abstract

The present invention relates to a hybrid system for generating power, which is equipped with a combustion heat supply device and a solar power supply device and has a plurality of engine driving sources. The hybrid system for generating power includes: a sterling engine; the combustion heat supply device for applying combustion heat to a heating portion to heat the heating portion of the sterling engine; and the solar power supply device for applying solar power to the heating portion to heat the heating portion of the sterling engine.

Description

Hybrid system for generating power < RTI ID = 0.0 >

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hybrid power generation system, and more particularly, to a hybrid power generation system having a plurality of engine drive sources with a combustion heat supply device and a solar heat supply device in a stering engine system.

The Stirling engine is a device that obtains power by using a pressure change caused by expansion and contraction of air inside a cylinder. To summarize the conventional configuration for such a Stirling engine, it is known that, by heating an external heat source, A cylinder unit for generating a forward and backward movement by applying a compressive force to a piston located at the rear of the displacer due to compression of air generated by the displacement of the displacer due to expansion pressure, A crank device for converting the backward motion into rotational motion, and the like.

The Stirling engine power generation system, which is one of the power generation systems, burns the combustible fuel and drives the stirling engine. Therefore, the stirling engine can not be driven without consuming fuel.

In other words, various solar thermal power generation systems have been proposed for heating the stirling engine with solar heat, and methods for using the solar heat as efficiently as possible have been developed.

However, such a solar stuttering engine power generation system has a problem that it is difficult to constantly drive the engine because it is greatly influenced by weather conditions, and it is difficult to control the solar heat, so that it is difficult to stably heat the stuttering engine to a required temperature.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a hybrid power generation system capable of driving a stirling engine constantly with a change in weather conditions and an amount of sunshine by providing a plurality of stering- The purpose. However, these problems are exemplary and do not limit the scope of the present invention.

According to an aspect of the present invention, there is provided a hybrid power generation system including: a stering engine; A combustion heat supply device for applying combustion heat to the heating part to heat the heating part of the stirling engine; And a solar heating device for applying solar heat to the heating unit to heat the heating unit of the stirling engine.

According to an aspect of the present invention, the combustion heat supply device may include a warming furnace enclosing the heating unit at a predetermined interval so as to maintain the temperature of the heating unit, And a heat insulating furnace opening provided on one side of the heat insulating furnace so as to allow the solar heat for heating the part to flow therethrough.

Further, according to the idea of the present invention, a transparent light-transmitting window may be installed in the warming-furnace opening, and a door which can be opened and closed to selectively pass sunlight may be provided.

According to an aspect of the present invention, the solar heat supply device includes: a warming furnace enclosing the heating unit at a predetermined interval to maintain the temperature of the heating unit; A heating furnace opening provided on one side of the heating furnace so as to allow solar heat for heating the heating section to flow therein; A heat insulating furnace opening / closing door installed to open / close the heating furnace opening; An opening / closing device capable of opening and closing the opening / closing door of the heat insulating furnace; A thermal sensor for measuring solar heat applied to the heating unit; And a door open / close control unit for receiving a solar thermal measurement signal from the heat sensor and outputting an open / close control signal to the open / close device.

According to an aspect of the present invention, the solar heat supply device includes: a warming furnace enclosing the heating unit at a predetermined interval to maintain the temperature of the heating unit; A heating furnace opening provided on one side of the heating furnace so that solar heating for heating the heating unit flows; And a reflector that condenses sunlight to apply solar heat to the heating unit through the opening of the heating path.

Further, according to an aspect of the present invention, the solar heat supply device includes: a sensor unit for measuring a direction of sunlight; An actuator for adjusting a direction of the reflector; And a reflector control unit which receives a sunlight direction signal from the sensor unit and applies a direction control signal to the actuator to adjust the direction of the reflector.

According to another aspect of the present invention, there is provided a stirling engine including: a main body; A heating unit of the stairing engine installed in the main body and heating the inner gas of the high temperature expansion cylinder portion having the display by heating to a high temperature and providing a rising pressure to the display due to high temperature expansion of the gas; A cylinder device installed in the main body and having a low-temperature compression cylinder portion which is provided on the high-temperature expansion cylinder portion and passes through the air circulation path to provide compressed low-temperature air, and in which a piston to be operated in the forward and backward directions is incorporated by the residual expansion pressure; And a crank device installed in the main body and rotating the crankshaft by switching the front and rear operation of the piston incorporated in the low temperature compression cylinder portion of the cylinder device into rotational motion.

According to an aspect of the present invention, the hybrid power generation system may further include an electric energy supply device for applying electric energy to the stalling engine to drive a starter motor of the stalling engine.

According to an aspect of the present invention, the electric energy supply device includes: a solar module plate installed to generate electricity using solar light; A battery connected to the solar module plate to store electricity; A power supply line provided between the battery and the motor; And a start switch installed on the power supply line.

According to the embodiments of the present invention as described above, it is possible to apply a certain amount of solar heat to the stirling engine even in the change of the gas-phase condition, and to realize a stable hybrid power generation system by supplying combustion heat and supplying solar heat. Of course, the scope of the present invention is not limited by these effects.

1 is a block diagram that schematically illustrates a hybrid power generation system in accordance with some embodiments of the present invention.
2 is a perspective view illustrating a hybrid power generation system in accordance with some embodiments of the present invention.
3 is a top view of a hybrid power generation system in accordance with some embodiments of the present invention.
FIG. 4 is a partial cross-sectional view showing the open / close state of the warming gate of the hybrid power generation system according to some embodiments of the present invention. FIG.
FIG. 5 is a partial cross-sectional view illustrating the open / close state of the warming gate of the hybrid power generation system according to some other embodiments of the present invention. FIG.
6 is a flowchart showing a method of controlling a heat insulating opening and closing door of a hybrid power generation system according to some embodiments of the present invention.
7 is a top view of a hybrid power generation system in accordance with some other embodiments of the present invention.
8 is a flow diagram illustrating a method for controlling a reflector of a hybrid power generation system in accordance with some alternative embodiments of the present invention.
9 is a top view of a Stirling engine according to some embodiments of the present invention.
10 is a top view of a hybrid power generation system according to some other embodiments of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The embodiments of the present invention are described in order to more fully explain the present invention to those skilled in the art, and the following embodiments may be modified into various other forms, It is not limited to the embodiment. Rather, these embodiments are provided so that this disclosure will be more thorough and complete, and will fully convey the concept of the invention to those skilled in the art. In the drawings, the thickness and size of each layer are exaggerated for convenience and clarity of explanation.

It is to be understood that throughout the specification, when an element such as a film, region or substrate is referred to as being "on", "connected to", "laminated" or "coupled to" another element, It will be appreciated that elements may be directly "on", "connected", "laminated" or "coupled" to another element, or there may be other elements intervening therebetween. On the other hand, when one element is referred to as being "directly on", "directly connected", or "directly coupled" to another element, it is interpreted that there are no other components intervening therebetween do. Like numbers refer to like elements. As used herein, the term "and / or" includes any and all combinations of one or more of the listed items.

Although the terms first, second, etc. are used herein to describe various elements, components, regions, layers and / or portions, these members, components, regions, layers and / It is obvious that no. These terms are only used to distinguish one member, component, region, layer or section from another region, layer or section. Thus, a first member, component, region, layer or section described below may refer to a second member, component, region, layer or section without departing from the teachings of the present invention.

Also, relative terms such as "top" or "above" and "under" or "below" can be used herein to describe the relationship of certain elements to other elements as illustrated in the Figures. Relative terms are intended to include different orientations of the device in addition to those depicted in the Figures. For example, in the figures, when the element is turned over, the elements depicted as being on the upper surface of the other elements are oriented on the lower surface of the other elements. Thus, the example "top" may include both "under" and "top" directions depending on the particular orientation of the figure. If the elements are oriented in different directions (rotated 90 degrees with respect to the other direction), the relative descriptions used herein can be interpreted accordingly.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a," "an," and "the" include singular forms unless the context clearly dictates otherwise. Also, " comprise "and / or" comprising "when used herein should be interpreted as specifying the presence of stated shapes, numbers, steps, operations, elements, elements, and / And does not preclude the presence or addition of one or more other features, integers, operations, elements, elements, and / or groups.

Hereinafter, embodiments of the present invention will be described with reference to the drawings schematically showing ideal embodiments of the present invention. In the figures, for example, variations in the shape shown may be expected, depending on manufacturing techniques and / or tolerances. Accordingly, the embodiments of the present invention should not be construed as limited to the particular shapes of the regions shown herein, but should include, for example, changes in shape resulting from manufacturing.

The hybrid generation system referred to in the present invention can be seen as a hybrid stirling engine generation system in a narrow sense.

Figure 1 is a block diagram that schematically illustrates a hybrid power generation system 1000 in accordance with some embodiments of the present invention. FIG. 2 is a perspective view illustrating a hybrid power generation system 1000 according to some embodiments of the present invention, and FIG. 3 is a plan view showing a hybrid power generation system 1000 according to some embodiments of the present invention.

1, a hybrid power generation system 1000 according to some embodiments of the present invention includes a stuttering engine 100, a combustion heat supply device 300, and a solar heating device 200 .

Here, the Stirling engine 100 is advantageous in that it can freely select fuel as an external combustion engine, and is used for producing electric energy by using combustion of wood in book fat or mountainous area where transportation of fuel is not easy have.

9, the Stirling engine 100 according to some embodiments of the present invention mainly includes a main body 10, a heating unit 110, a cylinder apparatus 100, (60) and a crank device (80).

Here, the main body 10 may be formed, for example, as shown in Fig. 9 by forming the appearance of the stirling engine 100 according to some embodiments of the present invention, and a frame supporting each of the above- The above-described devices are installed and can be electrically or mechanically connected to other control units, command input devices, display units, generators, sensors, and the like. The body 10 may be integrally formed or a plurality of structures may be assembled to each other with fasteners such as screws, bolts, rivets, and welding. In addition, the body 10 can be made of a material having excellent durability, such as metal or ceramics, in consideration of internal pressure, strength, durability and heat transfer coefficient. The main body 10 may be a horizontal type lying on the ground, a vertical type standing on the ground, or an inclined type inclined with respect to the ground.

2, 3, and 9, the heating unit 110 installed in the stirling engine 100 is heated by the external heat, When the inner gas of the high temperature expansion cylinder part 30 in which the displacer 20 is installed is heated to a high temperature, a high temperature expansion of the gas can provide an upward pressure to the displacer 20.

At this time, the external heat may be supplied through the combustion heat supply device 300 through combustion of fuel such as wood, gas, oil, or coal capable of heating the heating unit 110 of the stirling engine 100 , And may be supplied through the solar heat supply device 200 by condensing sunlight.

9, the cylinder device 60 is installed in the main body 10. For example, the cylinder device 60 is disposed on the high-temperature expansion cylinder portion 30, And a low-temperature compression cylinder portion 50 in which a piston 40 for performing a back-and-forth operation by the residual expansion pressure is incorporated. That is, the piston 40 is rotated by the displacer 20 reciprocating the working medium expanded by the high-temperature expansion cylinder unit 30 and then shrunk by the low-temperature compression cylinder unit 50 It is possible to generate the power while repeating the reciprocating motion by the air pressure generated therebetween.

9, the crank device 80 is installed in the main body 10 and is disposed in front of and behind the piston 40 built in the low-temperature compression cylinder portion 50 of the cylinder device 60 It may be a device for rotating the crankshaft 70 by converting the operation into rotational motion. Here, the rotating power obtained by the crankshaft 70 can be converted into electrical energy and used.

3, the combustion heat supply device 300 is installed so as to enclose the heating unit 110 at a predetermined interval to maintain the temperature of the heating unit 110 and enable combustion of the fuel And may include a warming furnace 120.

The solar heat supplying apparatus 200 may include a warming-air passage opening 125 provided at one side of the warming-up furnace 120 so that solar heat for heating the heating unit 110 flows.

Accordingly, when solar heat is sufficiently supplied to the heating unit 110 as a daylight or a sunny day, and the solar heat required for driving the stering engine 100 is satisfied, solar heat is used to drive the stering engine 100, When sunlight is not enough, such as night or cloudy day, the heat of combustion of the fuel can be used to drive the stering engine 100.

Here, for example, the door 130 installed in the warming-air passage opening 125 may be made of a transparent material. Such a transparent material may be a translucent or translucent material through which light can pass.

When the door 130 made of transparent material such as glass, acrylic, silicone, epoxy, optical fiber, sapphire, translucent mineral or the like is applied, sunlight is allowed to flow into the heating unit 110, It is possible to prevent leakage to the outside.

FIG. 4 is a partial cross-sectional view showing the open / close state of the heat shield door of the hybrid power generation system according to some embodiments of the present invention, and FIG. 5 is a cross-sectional view showing the state of opening / closing the heat shield door of the hybrid power generation system according to some other embodiments of the present invention Fig. 6 is a flowchart showing a method of controlling the warming-air opening and closing door of the hybrid power generation system according to some embodiments of the present invention.

4 to 6, the hybrid power generation system 1000 according to some embodiments of the present invention includes an opening / closing device 160 capable of opening / closing the heat insulating path opening / closing door, And a door open / close control unit 150 for receiving a solar thermal measurement signal from the heat sensor 140 and outputting an open / close control signal to the open / close device 160.

4, the operation of the hybrid power generation system 1000 according to some embodiments of the present invention will be described. First, the heat sensor 140 measures the heat of solar heat flowing from the outside The solar measurement signal can be applied to the opening and closing door controller 150 (S11). Then, the opening and closing door control unit 150 may compare the received solar measurement signal with a reference value (S12). At this time, when a solar heat signal higher than the reference value is applied to the door opening / closing door controller 150, the door opening / closing controller 150 may output a signal to the door opening / closing device 160 to close the door opening / closing door (S13). When a solar heat signal lower than a reference value is applied to the door opening / closing door controller 150, the door opening / closing controller 150 may output a signal instructing the door opening / closing device 160 to open the door opening / closing door at step S13. This process is repeated according to whether or not to proceed (S14).

Therefore, the warming-up control unit 150 of the hybrid power generation system 1000 according to some embodiments of the present invention can control the solar heat flowing into the heating unit 110 by controlling the opening and closing door according to the required temperature. In this case, if the heating unit 110 can not be heated sufficiently so that the amount of sunlight can drive the stirling engine 100 even when the opening and closing door is maximally opened, the heat insulating path opening 125 is opened / And the heating unit 110 can be heated by the combustion of the fuel through the fuel supply engine 170 to drive the stering engine 100. [

5, the opening and closing device 160 of the hybrid power generation system 1000 according to some embodiments of the present invention may include an opening / closing device 160 for controlling the amount of sunlight flowing into the heating unit 110, (132) can be driven in the form of a slide.

6, the opening and closing device 160 of the hybrid power generation system 1000 according to some embodiments of the present invention includes a heating and cooling device 160, The door 134 can be driven in a rotational manner.

Here, the opening and closing apparatuses shown in Figs. 5 to 6 can use various motors, cylinders, and power transmission devices that can drive the doors of the heating furnace. For example, DC motors, AC motors, step motors, brushless motors, synchronous motors, servo motors, linear motors, geared motors, and ultrasonic motors can be used as the single acting cylinder, double acting cylinder, stroke control cylinder, A tandem cylinder, a twin rod cylinder, a telescopic cylinder, a ram cylinder, a bellows cylinder, a wire cylinder and the like can be used.

Further, for example, the power transmission device may include various types of mechanical elements such as various gear combinations, belt and pulley combination, chain and sprocket wheel combination, wire and pulley combination, movable band and thread bar combination, link combination, .

FIG. 7 is a top plan view of a hybrid power generation system in accordance with some alternative embodiments of the present invention, and FIG. 8 is a flowchart illustrating a method of controlling a reflector of a hybrid power generation system according to some other embodiments of the present invention.

7, the solar heat supplying apparatus 200 of the hybrid power generation system 1000 according to some embodiments of the present invention is installed in the heating unit 110 through the heat insulating passage opening 125, And a reflector 210 for condensing sunlight to be supplied.

7 to 8, the solar heating device 200 of the hybrid power generation system 1000 according to some other embodiments of the present invention includes a sensor unit 220 for measuring the direction of sunlight, An actuator 240 for adjusting the direction of the reflector 210 and a reflector control unit for receiving a direction signal of the sunlight from the sensor unit 220 and applying a direction control signal for controlling the direction of the reflector to the actuator 240, As shown in FIG.

Here, the actuator 240 shown in FIG. 7 can use various motors, cylinders, and power transmission devices capable of driving the reflector 210. For example, DC motors, AC motors, step motors, brushless motors, synchronous motors, servo motors, linear motors, geared motors, and ultrasonic motors can be used as the single acting cylinder, double acting cylinder, stroke control cylinder, A tandem cylinder, a twin rod cylinder, a telescopic cylinder, a ram cylinder, a bellows cylinder, a wire cylinder and the like can be used.

Further, for example, although not shown, the power transmission device may be of various types such as various gear combinations, belt and pulley combination, chain and sprocket wheel combination, wire and pulley combination, movable band and thread bar combination, Mechanical elements may be included.

Also, when the sensor unit 220 generates the solar light direction measurement signal, the controller 230 compares the measured value with the reference value, and outputs the direction control signal when the sensor unit 220 exceeds the reference value.

Here, the sensor unit 220 may include two or more sensors, and may be horizontally installed on one side and the other side of the reflector 210. Accordingly, when the amount of light is biased to one side, an electromotive force is generated in the sensor, so that the reflector 210 can be controlled to move in the corresponding direction. Accordingly, even when the altitude and the direction of the sun are changed, the solar heat supplying apparatus 200 can concentrate solar light with high efficiency.

9 is a top view of a Stirling engine according to some embodiments of the present invention.

10 is a top view of a hybrid power generation system according to some other embodiments of the present invention.

10, the hybrid power generation system 1000 according to some embodiments of the present invention may include an electric energy supply device for initial operation of the stirling engine 100. [

More specifically, the electric energy supply device includes a solar module plate 410 installed outside the stirling engine 100 to generate electricity using solar light, A power supply line 440 provided between the battery and the starter motor, and a start switch 450 installed in the power supply line 440. The start switch 450 is connected to the starter motor. Accordingly, electricity generated in the solar module plate 410 is stored in the battery 420, and the staring engine 100 can be driven using the start switch 450 or an automation program. For example, the solar module plate 410 may include a condenser lens and a solar cell, and may collect sunlight to generate electricity. In addition, the solar cell may be a commonly used silicon solar cell, or a GaAs solar cell, a CIGS solar cell, a CdTe solar cell, a dye-sensitized solar cell, an organic thin film solar cell, a nano solar cell, a Quantum dot solar cell Various types of solar cells can be used.

Therefore, it is possible to drive the stirling engine even in a state in which it is difficult to drive the stirling engine 100 only by the sunlight, or in a state in which the heating portion 110 of the stirling engine 100 does not receive sufficient heat.

Therefore, the hybrid power generation system according to the embodiments of the present invention can maximize the light amount and has a plurality of heating means, so that it is possible to drive the stuttering engine stably and the solar heat can be adjusted as needed .

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

100: Stirling engine
110:
120: Insulation furnace
125: opening of the warming furnace
130: Opening and closing doors
200: Solar power supply
210: reflector
300: Combustion heat supply device
410: Solar module plate
1000: Hybrid generation system

Claims (9)

Stirling engine;
A combustion heat supply device for applying combustion heat to the heating part to heat the heating part of the stirling engine; And
A solar heating device for applying solar heat to the heating unit to heat the heating unit of the stirling engine;
Lt; / RTI >
The solar heat supply apparatus includes:
A heating furnace enclosing the heating unit at a predetermined interval to maintain the temperature of the heating unit;
A heating furnace opening provided on one side of the heating furnace so as to allow solar heat for heating the heating section to flow therein;
A heat insulating furnace opening / closing door installed to open / close the heating furnace opening;
An opening / closing device capable of opening and closing the opening / closing door of the heat insulating furnace;
A thermal sensor for measuring solar heat applied to the heating unit; And
An open / close door control unit receiving a solar measurement signal from the heat sensor and outputting an open / close control signal to the open / close device;
The hybrid power generation system. delete The method according to claim 1,
Wherein a transparent window made of a transparent material is provided in the opening of the heat insulating furnace so as to allow sunlight to pass therethrough. delete delete The method according to claim 1,
The solar heat supply apparatus includes:
A reflector for concentrating solar light to apply solar heat to the heating unit through the heat-
The hybrid power generation system. The method according to claim 6,
The solar heat supply apparatus includes:
A sensor unit for measuring a direction of sunlight;
An actuator for adjusting a direction of the reflector; And
A reflector control unit which receives a solar light direction signal from the sensor unit and applies a direction control signal to the actuator to adjust the direction of the reflector;
Further comprising: a control system for controlling the hybrid power generation system. The method according to claim 1,
The stirling engine includes:
main body;
A heating unit of the stairing engine installed in the main body and heating the inner gas of the high temperature expansion cylinder portion having the display by heating to a high temperature and providing a rising pressure to the display due to high temperature expansion of the gas;
A cylinder device installed in the main body and having a low-temperature compression cylinder portion which is provided on the high-temperature expansion cylinder portion and passes through the air circulation path to provide compressed low-temperature air, and in which a piston to be operated in the forward and backward directions is incorporated by the residual expansion pressure; And
A crank device installed in the main body, for rotating the crankshaft by switching the forward and backward movement of the piston incorporated in the low-temperature compression cylinder portion of the cylinder device into rotational motion;
The hybrid power generation system. The method according to claim 1,
And an electric energy supply device for applying electric energy to the stirling engine to drive a starter motor of the stirling engine,
Wherein the electric energy supply device comprises:
A solar module plate installed to generate electricity using solar light;
A battery connected to the solar module plate to store electricity;
A power supply line provided between the battery and the motor; And
A starter switch installed on the power supply line;
The hybrid power generation system.

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