KR20180124386A - Apparatus and method for controlling fuel and oxygen input for thermophotovoltaic device - Google Patents

Abstract

Provided are an apparatus and a method for controlling fuel and oxygen supply for a thermophotovoltaic power generator to maximize the power generation efficiency compared to that of fuel power generation by controlling the supply amount of fuel and oxygen supplied to a combustor according to output power. The apparatus for controlling fuel and oxygen supply for a thermophotovoltaic power generator measures the amount of power supplied to a load in the thermophotovoltaic power generator and the current amount of oxygen supply and the current amount of fuel supply supplied to the thermophotovoltaic power generator, and controls the amount of oxygen supply and the amount of fuel supply of the thermophotovoltaic power generator based on a value for controlling the amount oxygen supply and a value for controlling the amount of fuel supply which are set based on the measured amount of power, the current amount of oxygen supply, and the current amount of fuel supply.

Description

TECHNICAL FIELD [0001] The present invention relates to an apparatus and a method for controlling a fuel and an oxygen supply of a thermoelectric power generation apparatus,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thermoelectric generator, and more particularly, to an apparatus and a method for controlling the amount of fuel and oxygen supplied to a thermoelectric generator for supplying power to small portable apparatuses and mobile military equipment.

2. Description of the Related Art [0002] As the development and dissemination of small-sized portable equipment and portable military equipment have been increasing, various devices such as a secondary battery and a small generator for supplying power have been developed.

2. Description of the Related Art [0002] In general, small-sized mobile electronic devices such as small-sized portable devices and portable type military equipment are manufactured in a compact size in order to ensure portability, and thus secondary batteries are used. However, since currently used secondary batteries are composed of lithium ions, , And the use time is short.

In recent years, in order to solve the problems of such a secondary battery, research and development of a miniature power generation device has been actively carried out, and studies have been made on a micro power generation device for a micro-gas turbine and a micro- have.

However, there is a problem in that a small-sized heat engine (engine) power generating device includes high-speed dynamic parts for converting heat into electricity, resulting in excessive heat and friction loss and difficulty in micro-fabrication.

Accordingly, development of a miniature power generation apparatus that does not include a dynamic device such as a micro-thermoelectric system, a micro-thermophotolytic (TPV) converter, and the like is possible.

The ultra-small photodetector has a simple structure including a process of transferring heat radiation energy generated from a small-sized emitter to a photoelectric cell through a dielectric filter to obtain electricity, and cooling the device. Therefore, there are advantages such as convenience and low maintenance cost as a power source for small mobile electronic devices.

ThermoPhotoVoltaic (TPV) is a system that converts photons generated by heat into direct energy. It is composed of a power generator consisting of a thermal emitter and a photovoltaic diode cell, And a control unit. Thermal generators use heat to apply heat to a thermal body, which in turn injects electricity into a photovoltic cell (PV) with a low energy bandgap through blackbody radiation from a thermal body.

The development of onboard generators with advantages of high energy density (energy density more than 100 times per unit mass of lithium ion battery), instant charging and sufficient charge life, non-dynamometer, noise free, environmental friendliness and emergency application Making it a strong candidate for next-generation mobile power systems to replace existing secondary batteries.

Generally, a conventional thermoelectric generator includes a combustor (emitter) and a light-emitting element array. At this time, the light-emitting element array is constituted by arranging a plurality of light-emitting elements in the inner surface (that is, the direction of the combustor) of the base substrate having an inner hollow cylindrical shape. The light-emitting element array is disposed at a predetermined distance from the outer periphery of the combustor so as to condense light generated by the combustion of the fuel in the combustor and convert it into electric energy.

Conventional thermoelectric generators supply oxygen and fuel to a combustor in accordance with preset output power to generate light and heat. That is, the thermoelectric generator continuously burns predetermined amounts of oxygen and fuel to generate a certain amount of electrical energy.

Accordingly, even when an output power lower than the set output power (that is, the power consumption of the load) is required, the thermoelectric generator consumes a positive amount of oxygen and fuel according to the set output power, .

In addition, since the thermoelectric generator burns oxygen and fuel according to the set output power, the fuel cost increases and the life of the product is shortened due to the operation of the unnecessary combustor.

Korean Patent No. 10-1304102 (entitled " Ultra miniature pre-conversion system "

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems of the prior art, and it is an object of the present invention to provide a fuel and oxygen supply control device of a thermoelectric power generation apparatus which controls the supply amount of oxygen and fuel supplied to a combustor according to output power, And a method thereof.

In order to achieve the above object, an apparatus for controlling a fuel and an oxygen supply of a thermoelectric generator according to an embodiment of the present invention includes a power measurement unit for measuring an amount of power supplied from a thermoelectric generator to a load, A fuel supply amount measurement unit for measuring the present fuel supply amount supplied to the thermoelectric power generation unit, a supply unit for setting the oxygen supply amount control value and the fuel supply amount control value based on the electric energy amount, the present oxygen supply amount and the present fuel supply amount An oxygen valve control unit for controlling the oxygen supply amount of the thermoelectric generator based on the oxygen valve control value, and a fuel valve control unit for controlling the fuel supply amount of the thermoelectric generator based on the fuel valve control value.

The supply control unit stores a look-up table linking the amount of power, oxygen supply amount, and fuel supply amount, detects the oxygen supply amount associated with the amount of power measured by the power amount measurement unit from the look-up table and sets it as the oxygen supply amount set value, The fuel supply amount associated with the amount of power measured by the power amount measuring unit can be detected and set as the fuel supply amount set value.

The supply control unit sets the opening amount of the oxygen valve corresponding to the difference value between the present oxygen supply amount and the oxygen supply amount set value to the oxygen valve control value and sets the opening amount of the combustion valve corresponding to the difference value between the present fuel supply amount and the fuel supply amount set value The amount of fuel can be set to the fuel valve control value.

According to an aspect of the present invention, there is provided a method for controlling fuel and oxygen supply in a thermoelectric generator, including the steps of measuring an amount of power supplied to a load in a thermoelectric generator, measuring a current amount of oxygen supplied to the thermoelectric generator, Measuring a current fuel supply amount supplied to the photovoltaic power generation apparatus, setting an oxygen supply amount setting value based on the amount of power and the current oxygen supply amount, setting the oxygen supply amount setting value based on the oxygen supply amount setting value and the present oxygen supply amount, Controlling the supply amount, setting the fuel supply amount setting value based on the amount of power and the current fuel supply amount, and controlling the fuel supply amount of the thermoelectric power generation device based on the fuel supply amount setting value and the current fuel supply amount.

In the step of setting the oxygen supply amount set value, the oxygen supply amount associated with the amount of power measured in the step of measuring the amount of power from the look-up table linking the amount of power, oxygen supply amount and fuel supply amount is detected and set as the oxygen supply amount set value, The fuel supply amount associated with the amount of power measured in the step of measuring the amount of power from the look-up table that links the amount of power, oxygen supply amount, and fuel supply amount may be detected and set as the fuel supply amount setting value.

The step of controlling the oxygen supply amount includes the steps of setting the opening amount of the oxygen valve corresponding to the difference value between the present oxygen supply amount and the oxygen supply amount set value to the oxygen valve control value and controlling the oxygen valve of the thermoelectric generator based on the oxygen valve control value And controlling the oxygen supply amount by controlling the oxygen supply amount.

Wherein the step of controlling the fuel supply amount includes the steps of setting a fuel valve control value corresponding to a difference value between a present fuel supply amount and a fuel supply amount setting value and setting a fuel valve control value based on the fuel valve control value, And controlling the fuel supply amount by controlling the fuel supply amount.

According to the present invention, the fuel and oxygen supply control apparatus controls the supply amount of oxygen and fuel supplied to the combustor according to the output power, thereby minimizing the consumption of unnecessary fuel and maximizing the generation efficiency relative to the fuel.

Further, the fuel and oxygen supply control apparatus controls the supply amount of oxygen and fuel according to the output power, minimizes the fuel cost for generation of heat, and prevents unnecessary operation of the combustor, thereby maximizing the life of the product.

1 to 7 are views for explaining a thermoelectric generator to which the fuel and oxygen supply control device according to the embodiment of the present invention is applied.
8 is a view for explaining a fuel and oxygen supply control apparatus according to an embodiment of the present invention.
9 is a flowchart for explaining a fuel and oxygen supply control method according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings in order to facilitate a person skilled in the art to easily carry out the technical idea of the present invention. . In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

1 and 2, the thermoelectric generator 100 includes a fuel inlet 110, an oxygen inlet 120, a first transfer line 130, a preheater 140, a combustor 150, a discharge line 160 A heat element array 170, a circulation fan 180, and a second transfer line 190. The heat transfer element array 170 is a heat transfer element. At this time, the photovoltaic power generation apparatus 100 includes a fuel inlet 110, an oxygen inlet 120, a part of the first conveyance line 130, a preheater 140, a part of the discharge line 160 and a part of the second conveyance line 190 And a remaining portion of the combustor 150, the remainder of the discharge line, the array of heat elements 170, the circulating fan 180 and the second transfer line 190, The second main body 300 may be divided into a first main body 300 and a second main body 300. Although FIGS. 1 and 2 illustrate that the thermoelectric generator 100 is separately formed and joined to the first body 200 and the second body 300, the present invention is not limited thereto, The first body 200 and the second body 300 may be integrally formed.

The fuel inlet 110 is filled with fuel for generating a light source that generates heat. The fuel inlet 110 is formed in the shape of a pipe, and one end is connected to an external fuel supply source (not shown). The fuel injected from the fuel supply source through the fuel inlet 110 is injected into the first transfer line 130 connected to the other end of the fuel inlet 110. Here, the fuel inlet 110 receives fuel such as H2 or NH as an example.

The oxygen inlet port 120 is filled with oxygen transferred through the second transfer line 190. At this time, the oxygen inlet 120 is firstly preheated by the heat dissipation fin 176, and the oxygen transferred through the second transfer line 190 is supplied.

1 and 2, the fuel supply pipe 112 and the oxygen supply pipe 122 are connected to each other through the oxygen supply port 120 in order to easily explain the thermoelectric generator 100. However, May be inserted into the first transfer line 130. At this time, the fuel supply pipe 112 is provided with a fuel valve 114 for regulating the amount of fuel supplied to the combustor 150. The oxygen supply pipe 122 is provided with an oxygen valve 124 for regulating the amount of oxygen supplied to the combustor 150.

The first transfer line 130 transfers the injected fuel and oxygen to the combustor 150. That is, the first transfer line 130 is formed in a pipe shape, one end is connected to the fuel inlet 110 and the oxygen inlet 120, and the other end is connected to the combustor 150. The first transfer line 130 transfers fuel and oxygen introduced through the fuel inlet 110 and the oxygen inlet 120 to the combustor 150.

The preheater 140 secondarily preheats the fuel and oxygen carried through the first transfer line 130. That is, the preheater 140 is disposed on the outer periphery of the first conveyance line 130 to preheat the fuel and oxygen conveyed through the first conveyance line 130. At this time, the preheater 140 raises the temperature of the first preheated oxygen by the heat dissipation fin 176 through the secondary preheating and transfers it to the combustor 150. Here, the preheater 140 is an example of a recuperator.

The combustor 150 burns the fuel supplied through the first transfer line 130 to generate light (light) and heat. To this end, the combustor 150 mixes the transferred fuel and oxygen through the first transfer line 130. The combustor 150 burns the mixed fuel (that is, fuel mixed with oxygen) to generate light (light) and heat.

In one example, the combustor 150 includes a mixer (not shown) for mixing fuel and oxygen connected to the first transfer line 130, a chamber (not shown) into which the mixed fuel mixed in the mixer flows, (Not shown).

The exhaust line 160 discharges the exhaust gas generated when the mixed fuel is combusted in the combustor 150 to the outside of the thermoelectric generator 100. 3, the discharge line 160 is formed in the shape of a pipe along the periphery of the combustor 150, the preheater 140, and the first transfer line 130, and is generated in the combustor 150 And discharges the exhaust gas to the discharge port. 2, the preheater 140 is disposed in the discharge line 160, but the present invention is not limited thereto. The discharge line 160 may be formed along the outer circumference of the preheater 140.

The light-emitting device array 170 is disposed along the outer periphery of the combustor 150, and generates electric power using light generated in the combustor 150. At this time, since the light emitting element 174 has a good power generation efficiency when the temperature is low, the light emitting element array 170 is disposed at a predetermined distance from the combustor 150.

Referring to FIG. 4, the light-emitting array 170 includes a base substrate 172, a plurality of light-emitting elements 174, and a heat-dissipating fin 176.

The base substrate 172 is formed in the shape of a rectangular plate. At this time, the base substrate 172 may be formed of a metal substrate made of a metal or a resin material used for a general circuit board.

The plurality of light-emitting elements 174 are arranged in a matrix on one surface of the base substrate 172. That is, the plurality of light entry devices 174 are arranged in a matrix on one surface of the base substrate 172 arranged in the direction of the combustor 150, and the light generated by the combustion of the fuel in the combustor 150 is condensed into electric energy do. Here, the light-emitting device 174 is an example of TPV (Thermophotolytic).

The heat dissipation fin 176 is disposed on the other surface of the base substrate 172. The heat dissipation fins 176 absorb heat from the plurality of heat dissipation elements 174 through heat conduction and discharge the heat to the outside. That is, since the light-emitting element 174 has a good power generation efficiency when the temperature is low, the heat-dissipating fin 176 is disposed on the other surface opposite to the one surface of the base substrate 172 on which the light-emitting element 174 is formed, (174). ≪ / RTI >

Since the base substrate 172 is formed of a metal material or a resin material, the base substrate 172 is deformed (e.g., shrunk or expanded) due to the high temperature generated in the combustion of the fuel in the combustor.

Since the light-emitting element 174 is disposed on one side of the base substrate 1720, the light-condensing efficiency is lowered when the flatness of the base substrate 172 is lowered. That is, the direction of facing the light guide element 174 is changed according to the deformation of the base substrate 172, and the amount of light that can be collected in the light generated in the combustor 150 is reduced.

When the light condensing efficiency of the light emitting element 174 is lowered, the power generation efficiency of the thermoelectric generator 100 is lowered.

Therefore, in order to increase the product lifetime while maintaining the power generation efficiency of the thermoelectric generator 100 constant, it is necessary to prevent deformation of the base substrate 172 due to heat generated in the combustor 150.

5 and 6, the light emitting device array 170 may further include a heat insulating member 178 formed on one surface of the base substrate 172. Here, FIGS. 5 and 6 show that the base sheet 172 is in a flat state in order to easily explain the formation position of the heat insulating member 178. FIG.

When the heat insulating member 178 is disposed on the surface of the light emitting device 174, the light condensing efficiency of the light emitting device 174 is lowered because the heat is refracted, absorbed or reflected by the heat insulating member 178.

The heat insulating member 178 is formed on one surface of the base substrate 172 and is formed so as not to cover the surface of the light emitting device 174 disposed on one surface of the base substrate. That is, the heat insulating member 178 is formed on one surface of the base substrate 178, and is formed only in a region where a plurality of light emitting elements 174 are not formed.

The heat insulating member 178 is made of a resin material such as silver epoxy, polyimide, etc., which is flexible and has high heat and no deformation.

The heat insulating member 178 is formed on the base substrate 172 through printing of a silver paste, and is formed by etching the region where the light emitting device 174 is disposed. At this time, the light-emitting element 174 is disposed on the base substrate 172 on which the heat insulating member 178 is formed.

Of course, the heat insulating member 178 may be formed by printing a silver paste on the base substrate 172 on which the light emitting elements 174 are disposed.

The heat insulating member 178 can block the heat absorbed or radiated to the region other than the light emitting device 174, thereby minimizing the heat loss.

The heat insulating member 178 may reflect heat generated in the combustor 150 toward the combustor 150 to increase the temperature in the combustor 150 to maximize the combustion efficiency of the combustor 150.

The light-emitting element array 170 is formed into a cylindrical shape through deformation of the base substrate 172. The plurality of light emitting devices 174 are disposed on the inner surface of the base substrate 172 (i.e., in the direction of the combustor 150). At this time, the heat element array 170 is spaced apart from the outer circumference of the combustor 150 by a predetermined distance.

The heat element array 170 is provided with the heat insulating member 178 in the inner surface of the base substrate 172 (i.e., in the direction of the combustor 150). At this time, the heat insulating member 178 is formed in the space between the light emitting devices 174 to prevent deformation of the base substrate 172 due to the high temperature generated in the combustor 150.

The circulating fan 180 circulates oxygen (i.e., air) located in the outer circumference of the heat dissipating fin 176 to the oxygen inlet 120 through the second transfer line 190. 7, the circulating fan 180 is disposed in the other direction of the combustor 150 and blows in the direction of the combustor 150. As shown in FIG. The circulating fan 180 is rotationally driven to circulate oxygen (i.e., air), which has been preheated by the heat radiated from the radiating fin 176, to the oxygen inlet 120 through the second transfer line 190.

At this time, the oxygen (i.e., air) that has been preheated by the heat dissipation fin 176 is introduced into the oxygen inlet 120 through the second transfer line 190 by the circulation fan 180.

As described above, the thermoelectric power generation apparatus 100 increases the temperature of oxygen used for fuel combustion by injecting the oxygen preliminarily preheated by the heat dissipation fin 176 to the oxygen inlet 120 through the circulation fan 180, Can be maximized.

That is, the thermoelectric generator 100 is firstly preheated by the heat sink fins 176 and supplied to the combustor 150 (i.e., the emitter) by supplying oxygen, which is second preheated by the preheater 140, So that the combustion efficiency can be maximized.

In addition, the thermoelectric power generation apparatus 100 is configured to perform the heat dissipation and the oxygen input through one fan (i.e., the circulation fan 180), thereby generating heat dissipation for heat dissipation and air dissipation There is an effect that the manufacturing cost can be minimized while reducing the size of the product as compared with the device 100. [

In addition, the thermoelectric power generation apparatus 100 performs heat dissipation and oxygen injection through one fan (i.e., the circulation fan 180), so that compared to the conventional thermoelectric power generation apparatus 100 having a heat dissipation fan and an air fan, Power consumption of the power generation apparatus 100 can be minimized and the power generation efficiency can be maximized.

That is, since the thermoelectric generator 100 drives only the circulation fan 180 using the generated power, the power consumption of the conventional thermoelectric power generator 100 is lower than that of the conventional thermoelectric power generator 100 for driving the heat- The power generation efficiency can be maximized.

The second transfer line 190 is formed along the outer periphery of the heat dissipation fin 176 and the preheater 140 to transfer the oxygen blown by the circulation fan 180 to the oxygen inlet 120. 4, the oxygen preliminarily preheated by the heat dissipation fin 176 is blown toward the combustor 150 by the circulation fan 180 and is introduced into the second conveyance line 190, And is transferred to the oxygen inlet 120 through the line 190.

8, the fuel and oxygen supply control apparatus 400 according to the embodiment of the present invention includes a power amount measurement unit 410, an oxygen supply amount measurement unit 420, a fuel supply amount measurement unit 430, 440), an oxygen valve control unit 450, and a fuel valve control unit 460.

The power measurement unit 410 measures the amount of power supplied from the thermoelectric generator 100 to the load. That is, the power measuring unit 410 measures the voltage and current applied to the load in the thermoelectric generator 100 to calculate the power. The power amount measuring unit 410 calculates the power amount of the load by averaging the calculated power and multiplying it by the set time. The power measuring unit 410 may be a digital clamp meter, a digital multi meter, or the like.

The oxygen supply amount measuring unit 420 measures the present oxygen supply amount supplied from the oxygen inlet 120 to the combustor 150. [ That is, the oxygen supply amount measurement unit 420 measures the present oxygen supply amount, which is the oxygen supply amount supplied to the combustor 150 through the oxygen supply pipe 122 connected to the oxygen inlet 120. The oxygen supply amount measurement unit 420 transmits the measured present oxygen supply amount to the supply control unit 440. [

The fuel supply amount measurement unit 430 measures the present fuel supply amount supplied from the fuel inlet 110 to the combustor 150. [ That is, the fuel supply amount measurement unit 430 measures the present fuel supply amount, which is the fuel supply amount supplied to the combustor 150 through the fuel supply pipe 112 connected to the fuel inlet 110. The fuel supply amount measurement unit 430 transmits the measured current fuel supply amount to the supply control unit 440. [

The supply control unit 440 sets the oxygen supply amount set value and the fuel supply amount set value based on the power amount calculated by the power amount measurement unit 410. [ That is, the supply control unit 440 stores a look-up table linking the oxygen supply amount and the fuel supply amount in accordance with the amount of power. The supply control unit 440 detects the oxygen supply amount and the fuel supply amount corresponding to the power amount calculated by the power amount measurement unit 410. [ The supply control unit 440 sets the detected oxygen supply amount to the oxygen supply amount set value, and sets the detected fuel supply amount to the fuel supply amount set value.

The supply control unit 440 compares the present oxygen supply amount transmitted to the oxygen supply amount measurement unit 420 with a predetermined oxygen supply amount set value to determine whether or not the oxygen valve is controlled. That is, the supply control unit 440 determines that the oxygen valve 124 is not controlled if the present oxygen supply amount is within the error range of the oxygen supply amount set value. The supply control unit 440 determines that the oxygen supply amount is the oxygen valve control if the current oxygen supply amount is a value outside the error range of the oxygen supply amount set value.

The supply control unit 440 calculates the difference between the present oxygen supply amount and the oxygen supply amount set value when it is judged as the oxygen valve control. The supply control unit 440 calculates the oxygen valve control value which is the opening amount of the oxygen valve 124 corresponding to the calculated difference value. The supply control unit 440 transmits the calculated oxygen valve control value to the oxygen valve control unit 450.

The supply control unit 440 compares the current fuel supply amount transmitted to the fuel supply amount measurement unit 430 with a preset fuel supply amount setting value to determine whether or not the fuel valve control is performed. That is, the supply control unit 440 determines that the fuel valve 114 is uncontrolled if the present fuel supply amount is within the error range of the fuel supply amount set value. The supply control unit 440 determines that the fuel supply control is the fuel valve control if the present fuel supply amount is a value that deviates from the error range of the fuel supply amount set value.

The supply control unit 440 calculates the difference between the present fuel supply amount and the fuel supply amount set value when it is judged as the fuel valve control. The supply control unit 440 calculates the fuel valve control value which is the opening amount of the fuel valve 114 corresponding to the calculated difference value. The supply control unit 440 transmits the calculated fuel valve control value to the fuel valve control unit 460. [

The oxygen valve control unit 450 controls the opening amount of the oxygen valve 124 based on the oxygen valve control value transmitted from the supply control unit 440. [

The fuel valve control unit 460 controls the opening amount of the fuel valve 114 based on the fuel valve control value transmitted from the supply control unit 440. [

Accordingly, the fuel and oxygen supply control device 400 controls the supply amount of oxygen and fuel supplied to the combustor 150 according to the output power, thereby minimizing the consumption of unnecessary fuel, thereby maximizing the power generation efficiency relative to the fuel.

In addition, the fuel and oxygen supply control device 400 controls the supply amount of oxygen and fuel according to the output power to minimize the fuel cost for generation of heat and to prevent the unnecessary operation of the combustor 150 to maximize the life of the product .

Referring to FIG. 9, the fuel and oxygen supply control method according to an embodiment of the present invention includes a step of measuring a power amount S100, an oxygen supply amount measurement step S200, a fuel supply amount measurement step S300, a supply amount setting step S400, A fuel valve control value calculating step S640, a fuel supply amount control step S640, a fuel supply amount control step S640, (S660).

In the power amount measuring step (S100), the amount of power supplied from the thermoelectric generator (100) to the load is measured. That is, in the power amount measuring step S100, the voltage and current applied to the load from the thermoelectric generator 100 are measured to calculate the power. In the power amount measuring step (S100), the calculated power is averaged and multiplied by the set time to calculate the power amount of the load.

The oxygen supply amount measurement step S200 measures a current oxygen supply amount supplied from the oxygen inlet 120 of the thermoelectric generator 100 to the combustor 150. [ That is, the oxygen supply amount measurement step S200 measures the current oxygen supply amount, which is the oxygen supply amount supplied to the combustor 150 through the oxygen supply pipe 122 connected to the oxygen inlet 120. [

In the fuel supply amount measuring step S300, the current fuel supply amount supplied from the fuel inlet 110 of the thermoelectric generator 100 to the combustor 150 is measured. That is, in the fuel supply amount measuring step S300, the current fuel supply amount, which is the fuel supply amount supplied to the combustor 150 through the fuel supply pipe 112 connected to the fuel inlet 110, is measured.

In the supply amount setting step (S400), the supply amount setting value is set based on the electric power amount measured in the step S100. At this time, in the supply amount setting step (S400), the oxygen supply amount set value and the fuel supply amount set value are set.

To this end, in the supply amount setting step (S400), the oxygen supply amount and the fuel supply amount corresponding to the power amount measured in the step S100 are detected in the look-up table in which the oxygen supply amount and the fuel supply amount in accordance with the power amount are linked. In the supply amount setting step (S400), the detected oxygen supply amount is set as the oxygen supply amount set value, and the detected fuel supply amount is set as the fuel supply amount set value.

In the oxygen supply amount control step (S520), whether the oxygen valve is controlled or not is determined by comparing the present oxygen supply amount with the oxygen supply amount set value. At this time, if it is determined that the oxygen supply amount is within the error range of the oxygen supply amount set value, it is determined that the oxygen valve 124 is not controlled. In the oxygen supply amount control step S500, if the present oxygen supply amount is a value outside the error range of the oxygen supply amount set value, it is determined to be the oxygen valve control.

In the oxygen valve control value calculation step S540, if it is determined to be the oxygen supply amount control in step S520, the oxygen valve control value for controlling the oxygen supply amount is calculated. That is, in the oxygen valve control value calculation step S540, the difference value between the present oxygen supply amount and the oxygen supply amount set value is calculated. In the oxygen valve control value calculating step S540, an oxygen valve control value which is an opening amount of the oxygen valve 124 corresponding to the calculated difference value is calculated.

In the oxygen supply amount control step S560, the amount of oxygen supplied to the combustor 150 is controlled by controlling the opening amount of the oxygen valve 124 based on the oxygen valve control value calculated in step S540.

In the fuel supply amount control determination step S620, the current fuel supply amount and the fuel supply amount setting value are compared to determine whether the fuel valve is controlled. That is, in the fuel supply amount control determination step S650, if the present fuel supply amount is within the error range of the fuel supply amount set value, it is determined that the fuel valve 114 is not controlled. In the fuel supply amount control step S650, if the present fuel supply amount is a value that deviates from the error range of the fuel supply amount set value, it is determined to be the fuel valve control.

The fuel valve control value calculation step S640 calculates the fuel valve control value for controlling the fuel supply amount when the fuel supply amount control is determined in step S620. That is, in the fuel valve control value calculating step S640, the difference value between the present fuel supply amount and the fuel supply amount set value is calculated. In the fuel valve control value calculating step S640, the fuel valve control value which is the opening amount of the fuel valve 114 corresponding to the calculated difference value is calculated.

In the fuel supply amount control step S660, the amount of fuel supplied to the combustor 150 is controlled by controlling the amount of opening of the fuel valve 114 based on the fuel valve control value calculated in operation S640.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but many variations and modifications may be made without departing from the scope of the present invention. It will be understood that the invention may be practiced.

100: thermoelectric generator 110: fuel inlet
112: fuel supply pipe 114: fuel valve
120: oxygen inlet port 122: oxygen supply pipe
124: oxygen valve 130: first transfer line
140: preheater 150: combustor
160: discharge line 170: heat element array
172: base substrate 174:
176: heat dissipation pin 178:
180: circulating fan 190: second conveying line
200: first main body 300: second main body
400: Fuel and oxygen supply control device
410: electric energy measurement unit 420: oxygen supply measurement unit
430: fuel supply amount measuring unit 440: supply control unit
450: oxygen valve control unit 460: fuel valve control unit

Claims (9)

A power measuring unit for measuring an amount of power supplied from the thermoelectric generator to the load;
An oxygen supply amount measuring unit for measuring a current oxygen supply amount supplied to the thermoelectric generator;
A fuel supply amount measuring unit for measuring a present fuel supply amount supplied to the thermoelectric generator;
A supply control unit that sets an oxygen supply amount control value and a fuel supply amount control value based on the power amount, the present oxygen supply amount, and the present fuel supply amount;
An oxygen valve control unit for controlling an oxygen supply amount of the thermoelectric generator based on the oxygen valve control value; And
And a fuel valve control unit for controlling a fuel supply amount of the thermoelectric generator based on the fuel valve control value. The method according to claim 1,
Wherein the supply control unit stores a look-up table linking the amount of power, the oxygen supply amount and the fuel supply amount,
Up table is set to an oxygen supply amount set value by detecting an oxygen supply amount associated with the amount of power measured by the power amount measuring unit,
And a fuel supply amount associated with the amount of power measured by the power amount measurement unit is detected from the look-up table and set as a fuel supply amount set value. 3. The method of claim 2,
And the supply control unit sets the opening amount of the oxygen valve corresponding to the difference value between the present oxygen supply amount and the oxygen supply amount set value to the oxygen valve control value. 3. The method of claim 2,
Wherein the supply control unit sets the amount of opening of the combustion valve corresponding to the difference between the present fuel supply amount and the fuel supply amount setting value to the fuel valve control value. Measuring the amount of power supplied from the thermoelectric generator to the load;
Measuring a current oxygen supply amount supplied to the thermoelectric generator;
Measuring a current fuel supply amount supplied to the thermoelectric generator;
Setting an oxygen supply amount setting value based on the power amount and the current oxygen supply amount;
Controlling an oxygen supply amount of the thermoelectric generator based on the oxygen supply amount set value and the current oxygen supply amount;
Setting a fuel supply amount setting value based on the power amount and the current fuel supply amount; And
And controlling the fuel supply amount of the thermoelectric generator based on the fuel supply amount set value and the current fuel supply amount. 6. The method of claim 5,
Wherein the step of setting the oxygen supply amount set value comprises the steps of detecting a supply amount of oxygen associated with the amount of power measured in the step of measuring the amount of power from the look-up table that links the amount of power, oxygen supply amount and fuel supply amount, A method for controlling fuel and oxygen supply of a device. 6. The method of claim 5,
Wherein the step of setting the fuel supply amount set value comprises the steps of detecting a fuel supply amount associated with the amount of electric power measured in the step of measuring the amount of electric power from the look-up table linking the amount of power, oxygen supply amount and fuel supply amount, A method for controlling fuel and oxygen supply of a device. The method according to claim 6,
Wherein the step of controlling the oxygen supply amount comprises:
Setting an opening amount of the oxygen valve corresponding to the difference between the current oxygen supply amount and the oxygen supply amount set value to the oxygen valve control value; And
And controlling the oxygen supply amount by controlling the oxygen valve of the thermoelectric generator based on the oxygen valve control value. The method according to claim 6,
Wherein the step of controlling the fuel supply amount comprises:
Setting the fuel valve control value to an opening amount of the fuel valve corresponding to a difference value between the current fuel supply amount and the fuel supply amount setting value; And
And controlling the fuel supply amount by controlling the fuel valve of the thermoelectric generator based on the fuel valve control value.

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