KR20000007985A - Aeration controlling method and apparatus by using solar panel - Google Patents

Abstract

PURPOSE: A process and apparatus for controlling an aeration by using a solar panel are provided which are to use generated energy of the solar panel effectively by controlling the number of electric motor and air pump in a reservoir, a river and a lake CONSTITUTION: The process for controlling an aeration by using a solar panel comprises a)the 1st stage for determining generated energy of the solar panel, b)the 2nd stage for determining the number of an electric motor that can drive with generated energy determined in the 1st stage, c)the 3rd stage for deriving the electric motor and the air pump of the corresponding number by generating a switching signal according to the number of the electric motor. The apparatus comprises the solar panel(100) for producing electric power; plural air pumps(200)(201) for blowing air in water; plural electric motors(300)(301) for driving plural air pumps(200)(201); plural switching elements(400)(401) for driving plural electric motors(300)(301) by switching generated output of the solar plate; a controlling part(500) for controlling the number of plural electric motors(300)(301) driven by discriminating generated energy of the solar panel and controlling switching motion of plural switching elements(400)(401).

Description

Aeration control method and control device using solar panel

The present invention relates to an aeration control method and an aeration control device for purifying the water quality by blowing air into the water of reservoirs, rivers and lakes, in particular according to the amount of output power of the solar panel in reservoirs, rivers and lakes where commercial power is not supplied. The present invention relates to an aeration control method and a control device using a solar panel for purifying water quality by adjusting the number of a plurality of motors and air pumps driven.

Water is purified by blowing air into reservoirs, rivers and lakes to increase the oxygen concentration in the water.

US Pat. No. 4,906,359 is known as a conventional aeration system for purifying water by blowing air into the water.

According to the conventional technology, a buoy is provided in a reservoir, a river, a lake, and the like, and a solar panel, an air pump for blowing air into the water, and an electric motor for driving the air pump are installed to generate electric power with the solar panel. The air is blown into the water by driving the motor and operating the air pump with the generated power.

1 is a graph showing a change in output voltage-output current of the solar panel over time, and FIG. 2 is a graph showing a characteristic curve of the output power of the solar panel according to the change in the solar radiation amount.

As can be seen in FIGS. 1 and 2, the output power varies according to the amount of insolation.

That is, although there is a difference depending on the amount of insolation due to sunny weather or cloudy weather, it generates about W1 power at early morning t1, and about W2 and W3 at time t2 t3 as time passes. At the time t4 when the solar radiation reaches the highest while generating the power of the generated power, the generated power generates the highest power of about W4.

As the amount of insolation decreases gradually in the afternoon, the generated power gradually decreases to W3, W2, and W1 at the times t5, t6, and t7.

However, the above-mentioned US Patent No. 4,906, 359 allows the air pump to blow air into the water by driving the electric motor regardless of the amount of power generated by the solar panel.

Therefore, the air pump can blow air into the water only when the solar panel has enough power to generate electricity, and the solar panel generates electricity due to the lack of insolation in the early morning and late afternoon hours or on cloudy and rainy days. Due to this shortage, the electric motor and the air pump cannot be driven, and the solar radiation causes a large amount of power more than the rated capacity of the electric motor and the air pump. .

SUMMARY OF THE INVENTION An object of the present invention is to provide an aeration control method using a solar panel having a plurality of air pumps, which can efficiently use the generated power of the solar panel by adjusting the number of electric motors and air pumps driven according to the generated power of the solar panel, and To provide a control device.

According to the aeration control method and control apparatus using the solar panel of the present invention for achieving the above object, a solar panel to generate power, a plurality of air pump for blowing air into the water, a plurality of electric motors for driving the plurality of air pump, respectively And a plurality of switching elements for driving the plurality of electric motors by switching the generated electric power of the solar panel, and a plurality of driving elements for determining the generated electric power amount of the solar panel and controlling switching operations of the plurality of switching elements according to the determined generated electric power. And a control unit for adjusting the number of electric motors.

The controller determines the amount of generated power of the solar panel, determines the number of a plurality of electric motors and air pumps that can be driven by the determined amount of generated power, and switches the plurality of switching elements according to the determined number of electric motors and air pumps. The operation is controlled to drive the appropriate number of motors and air pumps and blow air into the water to purify.

Therefore, according to the present invention, the number of electric motors and air pumps driven according to the amount of generated power of the solar panel can be adjusted to efficiently use all of the generated power of the solar panel.

1 is a graph showing a change in output power of a solar panel over time,

2 is a graph showing a characteristic curve of output voltage-output current of a solar panel according to a change in insolation;

3 is a circuit diagram showing the configuration of the aeration control device of the present invention;

4 is a diagram illustrating a configuration of an embodiment of the controller of FIG. 3;

5 is a signal flow diagram illustrating the operation of the microcomputer of FIG. 4 according to the aeration control method of the present invention;

6 is a diagram illustrating a configuration of another embodiment of the controller of FIG. 3.

* Description of the symbols for the main parts of the drawings *

100: solar panel 200, 201, ..., 20N: air pump

300, 301, 30N: Motor 400, 401, 40N: Switching element

500: control unit 510: power amount detection unit

520: analog-to-digital converter 530: microcomputer

540: comparison unit 550: switching signal output unit

Hereinafter, the aeration control method and control apparatus using the solar panel of the present invention will be described in detail with reference to the accompanying drawings of FIGS. 3 to 6.

3 is a circuit diagram showing the configuration of the aeration control device of the present invention.

Here, reference numeral 100 denotes a solar panel, reference numerals 200, 201, ..., 20N denote a plurality of air pumps for blowing air into the water, and reference numerals 300, 301, ..., 30N denote the plurality of air pumps 200 A plurality of electric motors driving 201... 20N.

Reference numerals 400, 401, 40N denote power generation of the solar panel 100 to switch the plurality of electric motors 300, 301, 30N, and a plurality of air pumps 200, 201. A plurality of switching elements for driving 20N.

Numeral 500 denotes a plurality of electric motors driven by determining the amount of generated power of the solar panel 100 and controlling switching operations of the plurality of switching elements 400, 401 ... 40N according to the determined amount of generated power ( 300 is a control unit for controlling the number of (301) ... (30N).

According to the present invention configured as described above, the solar panel 100 generates predetermined electric power according to the amount of solar radiation, and the generated electric power is input to the control unit 500 and is supplied to the plurality of switching elements 400, 401 ... 40N. Is approved.

Then, the control unit 500 determines the amount of generated power of the solar panel 100, determines the number of electric motors 300, 301... 30N that can be driven according to the determined amount of generated power, and the determined electric motor. A switching signal is generated according to the number of (300) (301) ... (30N) to determine the number of switching elements (400) (401) among the plurality of switching elements (400) (401) (40N). (40N) is selectively connected.

Then, the plurality of electric motors 300, 301... 30N are connected to the plurality of electric motors 300, 301... 40N through the plurality of switching elements 400, 401... 40N to which the generated power of the solar panel 100 is selectively connected. A plurality of air pumps 200, 201, 20N, which are respectively applied and driven and connected to the plurality of driven motors 300, 301, 30N are selectively driven and are underwater. Air is blown.

For example, when the amount of generated power of the solar panel 100 is W1, the switching element 400 is connected to blow air into the water while driving only the electric motor 300 and the air pump 200, and the solar panel 100 When the amount of generated power is W2, the switching elements 400 and 401 are connected to blow air into the water while driving the motors 300 and 301 and the air pumps 200 and 201, and the solar panel 100 When the amount of generated power is highest, the plurality of switching elements 400, 401, 40N are connected to each other so that the plurality of electric motors 300, 301, 30N, and the plurality of air pumps 200 are connected. Air is blown into the water while driving both 201 and 20N.

4 is a diagram illustrating a configuration of an embodiment of the control unit 500 of FIG. 3.

As shown in the embodiment of the present invention, the power amount detection unit 510 for detecting the amount of power generation of the solar panel 100, and the analog / digital converter for converting the output signal of the power generation amount detection unit 510 into a digital signal 520 and the plurality of switching elements 400,401, 401 according to the generated power amount determined by discriminating the generated power amount of the solar panel 100 by the output signal of the analog-to-digital converter 520. A microcomputer that adjusts the number of the plurality of electric motors 300, 301, 30N and the plurality of air pumps 200, 201, 20N, which are driven by controlling the switching operation of 40N. The control unit 500 is configured as 530.

According to an embodiment of the present invention configured as described above, the power amount detector 510 inputs the output power of the solar panel 100 to detect the generated power amount, and the analog / digital converter 520 detects the detected signal of the power amount detector 510. The signal is converted into a digital signal and input to the microcomputer 530.

Then, the microcomputer 530 performs an initialization operation in step S100 as shown in FIG. 5, and then inputs an output signal of the analog-to-digital converter 520 in step S110, and step S120. The amount of generated power of the solar panel 100 is determined by the output signal of the analog-to-digital converter 520 input from.

In the next step S130, the number of electric motors 300, 301, 30N and air pumps 200, 201, 20N, which can be driven by the determined amount of generated electric power is determined, and the step ( The switching signal is output in accordance with the number of the electric motors 300, 301, 30N and the plurality of air pumps 200, 201, 20N determined in S140.

Then, a plurality of switching elements 400, 401, 40N are selectively connected in accordance with the switching signal output from the microcomputer 530, and the selectively connected switching elements 400, 401 are connected. Power generation power of the solar panel 100 is supplied through 40N to drive the plurality of electric motors 300, 301, 30N and the air pumps 200, 201, 20N. Air is blown into the water.

6 is a diagram illustrating a configuration of another embodiment of the controller 500 of FIG. 3.

As shown therein, a plurality of reference voltages V10 (V11) ... (V1N) and a plurality of electric motors 300 (301) which can be driven by comparing the output signal levels of the power amount detection unit 510. A switching unit in accordance with an output signal of the comparison unit 540 for determining the number of 30N and the air pumps 200, 201 and 20N, and the switching element The control part 500 is comprised by the switching signal output part 550 which controls the switching operation of 400 (400) (401) ... (40N).

The comparison unit 540 divides the power source B + and generates a plurality of reference voltages V10 (V11) ... (V1N) and a plurality of resistors R10 (R11) ... (R1N + 1) and And a plurality of reference voltages (V10) (V11) ... (V1N) in which the plurality of resistors (R10) (R11) ... (R1N + 1) are generated and the output signal levels of the power amount detection unit (510) are compared. Comparator CP10 (CP11) ... (CP1N).

The switching signal output section 550 outputs the plurality of comparators CP10 (CP11) ... CP1N of the comparator 540 via resistors R20, R21, ..., R2N. It is connected to the base of transistors Q10 (Q11) ... (Q1N), and connected to the collectors of transistors Q10 (Q11) ... (Q1N) so that a power supply (B +) is applied to the transistors (Q10) (Q11). The emitter of Q1N is connected to the control terminals of the switching elements 400, 401, 40N via resistors R30, R31, R3N.

According to another embodiment of the present invention configured as described above, when the power source B + is applied, a plurality of resistors R10 (R11) ... R1N + 1 of the comparison unit 540 divide the applied power source B + into a plurality of embodiments. Generates reference voltages V10 (V11) ... (V1N), and the plurality of reference voltages V10 (V11) ... (V1N) generated are a plurality of comparators CP10 (CP11) ... Are applied to the inverting input terminal (-) of CP1N).

In this state, the amount of power generated by the solar panel 100 detects the amount of power generated by the power amount detector 510 and outputs a detection signal. The detected signal outputs the plurality of comparators CP10 (CP11) ... (CP1N). It is applied to the non-inverting input terminal (+).

Then, the plurality of comparators CP10 (CP11)... (CP1N) are used to determine the plurality of reference voltages V10, V11, ..., V1N and the detection signal outputted from the power amount detection unit 510. The levels are compared and the high potential or low potential is output according to the comparison result.

In this way, the high or low potentials output by the plurality of comparators CP10 (CP11) ... CP1N are transmitted through the resistors R20, R21, ..., R2N of the switching signal output unit 550. Since it is applied to the base of transistors Q10 (Q11) ... (Q1N), several transistors Q10 (Q11) ... (Q1N) are selectively turned on and off.

Therefore, the power source B + is applied to the control terminals of the plurality of switching elements 400, 401, 40N through the plurality of selectively turned on transistors Q10, Q11, Q1N, respectively. A plurality of switching elements 400, 401... 40N are selectively connected, and power generation of the solar panel 100 through the selectively connected switching elements 400, 401 .. 40N. Power is supplied to the plurality of electric motors 300, 301... 30N and the air pumps 200, 201... 20N are selectively driven to blow air into the water.

For example, when the level VL of the detection signal output from the power amount detection unit 510 is VL > V10, all of the plurality of comparators CP10, CP11, ... CP1N output high potential, and the transistor ( Q10) (Q11) ... (Q1N) are all turned on, and the plurality of switching elements 400, 401 ... 40N are all connected to the plurality of motors 300, 301 ... 30N ) And the air pump 200 (201) ... (20N) are driven to blow air into the water.

When the level VL of the detection signal output from the power amount detection unit 510 is V10 > VL > V11, the comparator CP11 ... CP1N outputs a high potential and the transistor Q11 ... Q1N. Is turned on, and the switching element 401 ... 40N is connected to blow air into the water while the electric motor 301 ... 30N and the air pump 201 ... 20N are driven. When the level VL of the detection signal output from the power amount detection unit 510 is V1N > VL, all of the plurality of comparators CP10, CP11, CP1N output low potentials, Q10) (Q11) ... (Q1N) are all turned off, and the plurality of switching elements 400, 401, ..., 40N are all opened, and the plurality of electric motors 300, 301 ... (30N ) And the air pump 200 (201) ... 20N are neither driven.

As described above, according to the present invention, by determining the amount of generated power of the solar panel, by determining the number of electric motors and air pumps that can be driven by the determined amount of generated power, blowing air into the water while driving only the determined number of motors and air pumps It is possible to use the generated power of the solar panel very efficiently by putting it in and purify it, and even if the amount of insolation is small, such as early morning, late evening and cloudy days, the number of electric motors and air pumps corresponding to the generated power can be purified. .

Claims (5)

A first step of determining an amount of power generated by the solar panel; A second step of determining the number of electric motors that can be driven by the amount of generated power determined in the first step; And Aeration control method using a solar panel, characterized in that the third step of generating a switching signal according to the number of the motor can be driven determined in the second process to drive the number of motors and air pumps. Solar panels developing; A plurality of air pumps for blowing air into the water; A plurality of electric motors respectively driving the plurality of air pumps; A plurality of switching elements for driving the plurality of electric motors by switching the generated electric power of the solar panel; And Aeration control device using a solar panel characterized in that the control unit for controlling the number of the plurality of electric motors driven by controlling the switching operation of the plurality of switching elements in accordance with the amount of generated power to determine the generated power amount of the solar panel . The method of claim 2, wherein the control unit; A power amount detector for detecting a power amount of the solar panel; An analog / digital converter for converting a power amount of the solar panel detected by the power amount detector into a digital signal; And And a microcomputer for determining the amount of generated power of the solar panel using the output signal of the analog / digital converter and controlling the number of the plurality of motors driven by controlling the switching operation of the plurality of switching elements according to the determined amount of generated power. Aeration control device using a solar panel. The method of claim 2, wherein the control unit; A power amount detector for detecting a power amount of the solar panel; A comparison unit determining the number of a plurality of electric motors and air pumps capable of driving the amount of power of the solar panel detected by the power amount detection unit with a plurality of preset reference voltages; And And a switching signal output unit configured to generate a switching signal according to the output signal of the comparator and to control switching operations of the plurality of switching elements. The apparatus of claim 4, wherein the comparison unit; A plurality of resistors for generating a plurality of reference voltages by dividing a power source; And And a plurality of comparators for comparing the detection signals of the power amount detector with a plurality of reference voltages having the plurality of resistors, respectively.