KR101444243B1 - Apparatus for the efficient management of electrical energy by the superposition of DC voltage or current for electrolysis apparatus - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for superimposing a direct current voltage or current for efficient control of electric energy in an electrolytic apparatus, and in an electrolytic apparatus according to an aspect of the present invention, a direct current voltage or current The apparatus includes a first power source unit 110 and a second power source unit 120 that operate as a power source and internal switches 115 and 125 for connecting the first power source unit 110 and the second power source unit 120 in series or in parallel, And external switches 130 and 140 and external diodes 119 and 129 and 139 and 149 for maintaining the conduction direction of the current in a predetermined direction. The first and second power supply units 110 and 120 are controlled to open and close the superimposing circuit 10 and the internal switches 115 and 125 and the external switches 130 and 140, ) To be connected in series or in parallel And a unit (20).

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for superimposing a direct current voltage or current for efficient control of electric energy in an electrolytic apparatus,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for superimposing a DC voltage or current on an electrolytic apparatus for efficient control of electric energy and, more particularly, to a system and a method for reducing power consumption or waste inefficiency through active energy efficiency management, In addition, in order to reduce the electric energy and increase the production efficiency, the electric energy is actively managed by superimposing the voltage or current of the DC power supply device (hereinafter referred to as the power supply device) by the electrical superposition principle The present invention relates to an apparatus for superimposing a direct current voltage or current for efficient control of electric energy in an electrolytic apparatus which can be used as a power source.

)은 벡터장으로써 아래와 같이 백터적 합으로 계산된다.When multiple power supplies are used, the combined electric power, which is the electrical force on the load, can be calculated by applying the superposition principle. Electrical force

) Is a vector field and is calculated as vector sum as follows.

(1)

=

=

=

(

: 전하량,

: 전기장)으로 나타내어 진다. 이는

x sec로 나타낼 수 있으며, 전기장 E=

로 정의된다. 따라서

= (

)(

)와 같으며, 이의 단위를 살펴보면 (Ampere x sec)(

)=(전류 x 전위차)와 같이 된다. 여기에서 전위차(electric potential)는

로 나타내어지나 일반적으로 전압

로 나타낸다. 따라서 전기적인 힘

는 다음과 같이 나타낼 수 있다.Also,

=

(

: Charge quantity,

: Electric field). this is

x sec, and the electric field E =

. therefore

= (

) (

) And its unit (Ampere x sec) (

) = (Current x potential difference). Here, the electric potential is

However, in general,

Respectively. Therefore,

Can be expressed as follows.

(2)

= P =

=

= P =

=

: 전압,

: 전류)(P: power,

: Voltage,

: Current)

When multiple power supplies are connected in a circuit, they can be thought of as one equivalent circuit power supply, which is a vector sum.

를 가지게 된다. 즉,

으로 나타낼 수 있다.When a plurality of power sources are connected in series, all the power sources have the same amount of charge

. In other words,

.

Therefore, the electric force according to (Equation 2) is as follows.

(3)

가 동일하기 때문에 전원장치의 전류와 같게 된다.That is, the electric force is equal to the sum of the voltages of the respective power supply devices which are vector quantities,

Is equal to the current of the power supply device.

이므로 전류는 각 전원로부터 출력되는 전류의 합계와 같고, 전압은 각각의 전원의 전압과 같게 된다.When a plurality of power sources are connected in parallel, unlike a series circuit, the total amount of charge of the entire power source

The current is equal to the sum of the currents output from the respective power sources, and the voltage becomes equal to the voltage of each power source.

Therefore, the electric force according to (Equation 2) is as follows.

(4)

When the power source is connected in series as in Equation (3) above, the current is constantly equal to the current of the power source, but the voltage appears as the sum of each power source. However, when the power source is connected in parallel, the voltage is equal to the voltage of the power source as shown in Equation (4), but the current appears as the sum of the respective power sources.

[0003] Meanwhile, a conventional power supply device for supplying power to a load by connecting a plurality of power sources in parallel is known as "a charger assembly and a power system using the same (Korean Patent Laid-Open No. 10-2010-0040804) "," Circuit device for operation (Korean Patent Laid-open Publication No. 10-2010-0017324) ".

However, according to the related art, there is no disclosure of a power supply circuit that selectively changes the connection state of a plurality of power sources to a serial connection or a parallel connection so as to selectively output an output of a high voltage or an amount of charges of each power source.

Electricity accounts for more than 30% of the total energy consumption of the country. Consumption is continuously increasing due to convenience of use. Therefore, it is necessary to expand power generation facilities, but it causes enormous cost and environmental problems. Therefore, it is necessary to increase the utilization efficiency of the facilities and to find an economical management method through reduction of power demand through power demand management and load leveling.

The object of the present invention is to reduce the waste or inefficient use of energy through active energy efficiency management and to improve the production efficiency by reducing electric energy, In an electrolytic device capable of actively managing electric energy by appropriately controlling electric power by superimposing voltage or current of a device (hereinafter referred to as a power supply device), a device for superimposing a DC voltage or current for efficient control of electric energy is provided .

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood from the following description.

In order to achieve the above object, an apparatus for superimposing a direct current voltage or current for efficient control of electric energy in an electrolytic apparatus according to an aspect of the present invention includes a first power supply unit 110 and a second power supply unit 120 Internal switches 115 and 125 and external switches 130 and 140 for connecting the first power source unit 110 and the second power source unit 120 in series or in parallel with each other, And a load LOAD electrically connected to the first power source unit 110 and the second power source unit 120. The internal circuit includes an external diode 119, And a control unit 20 controlling the first power source unit 110 and the second power source unit 120 to be connected in series or in parallel by controlling the first and second switches 115 and 125 and the external switches 130 and 140 to be opened and closed.

According to the present invention, the connection state of a plurality of power sources can be easily changed to a serial connection or a parallel connection by controlling the opening and closing of the switch.

In addition, according to the present invention, when a connection state of a plurality of power sources is changed to a serial connection or a parallel connection, a reverse current phenomenon does not occur.

)을 구현할 수 있으며 이에 따라 전원장치 고장시 조업의 방해를 받지 않으면서 수리가 가능하다. In addition, since it is easy to additionally connect a plurality of power sources, a redundant system

) So that it can be repaired without interruption of operation when the power supply unit fails.

Also, it can be applied to electric dust collection and plasma generation equipment, which are various high voltage discharge devices, because high voltage is easily generated by series connection.

In addition, it is easy to generate a large current by parallel connection, so that it can be applied to various electrolytic industries, plating and various decomposition facilities.

Also, high-voltage large current can be easily obtained by series-parallel connection.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing an apparatus in which a direct current voltage or current is superimposed for efficient control of electric energy in an electrolytic apparatus according to an embodiment of the present invention. FIG.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments described below, but may be embodied in various different forms, and these embodiments are not intended to be exhaustive or to limit the scope of the present invention to the precise form disclosed, It is provided to inform the person completely of the scope of the invention. It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Hereinafter, an apparatus for superimposing a direct current voltage or current for efficient control of electric energy in an electrolytic apparatus according to an embodiment of the present invention will be described with reference to FIG.

1 is a circuit diagram showing an apparatus for superimposing a DC voltage or current for efficient control of electric energy in an electrolytic apparatus according to an embodiment of the present invention.

Referring to FIG. 1, in an electrolytic apparatus according to an embodiment of the present invention, an apparatus for superimposing a direct current voltage or current for efficient control of electric energy includes a superimposing circuit 10 for series- And a control unit 20 for controlling the parallel connection.

The superposition circuit 10 includes a first power supply unit 110 and a second power supply unit 120 that operate as a power supply and includes internal switches 115 and 125 and external switches 130 and 140 for connecting them in series or in parallel, A load LOAD electrically connected to the first power source unit 110 and the second power source unit 120, and an external diode 119, 129, 139, 149 for maintaining the conduction direction of the current in a predetermined direction. .

More specifically, the first power source unit 110 includes a power source 111, a second stage of the internal switch 115 having one end connected to the positive electrode of the power source 111 and the other end connected to the negative electrode of the power source 111, And an internal diode 113 connected thereto.

Here, the internal diode 113 cuts off current conduction from the anode of the power source 111 to the cathode direction.

The second power supply unit 120 includes a power supply 121 and an internal diode connected to the other end of the internal switch 125 whose one end is connected to the positive electrode of the power supply 121 and whose other end is connected to the negative electrode of the power supply 121 123).

Here, the internal diode 123 cuts off current conduction from the anode of the power source 121 to the cathode direction.

The anode of the power source 111 is connected to the node connected to the other end of the inner diode 123 and the other end of the inner switch 125 of the second power source unit 120.

One terminal of the first external switch 130 is connected to the cathode of the power source 121 and the other terminal is connected to the other terminal of the external diode 139 whose one end is connected to the cathode of the power source 111 and the load LOAD. The external diode 139 blocks current conduction from the second power source unit 120 to the first power source unit 110 when the first external switch 130 is closed.

One end of the second external switch 140 is connected to the other end of the external diode 119 connected to the positive electrode of the power source 111 and the other end is connected to the other end of the external diode 149 connected at one end to the load LOAD .

Here, the external diodes 119 and 149 block current conduction from the load in the direction of the first power source unit 110 when the second external switch 140 is closed.

One end of the external diode 129 is connected to the anode of the power source 121 and the other end of the external diode 129 is connected to the load LOAD and one end of the external diode 149 to block current conduction from the load in the direction of the second power source 120.

When the first power source unit 110 and the second power source unit 120 supply power to the load LOAD according to the connection relationship and the circuit described above, the internal switches 115 and 125, the first external switch 130, As the two external switches 140 are opened and closed, the power source 111 and the power source 121 may be connected to each other in series or in parallel.

The control unit 20 controls the internal switches 115 and 125, the first external switch 130 and the second external switch 140 to be opened and closed so that the first power source unit 110 and the second power source unit 120 are connected in series Connected or connected in parallel.

Hereinafter, in an electrolytic apparatus according to an embodiment of the present invention, in a device in which a DC voltage or current is superimposed for efficient control of electric energy, when the superposition circuit 10 operates in a serial connection or in a parallel connection .

1) operating in a series connection (first external switch 130-open, second switch 140-open, internal switches 115, 125-close)

When the first power source unit 110 and the second power source unit 120 are connected in series, the controller 20 controls the first external switch 130 and the second external switch 140 to open, And the internal switches 115 and 125 are closed to control the current to be turned on.

At this time, the current of the first power source unit 110 flows from the positive terminal 1 through the node 8 to the node 9 through the internal diode 123 of the second power source unit 120 and the voltage of the second power source unit 120 at the node So that current flows. And its current flows through the node (6) to the load (LOAD). The current through the load (LOAD) flows to the negative terminal ⑦.

Accordingly, if the power supply units 110 and 120 are one unit V and one unit A, respectively, the voltage and the current to be applied to the load LOAD become one unit A with the unit V. [

2) operating in parallel connection (first external switch 130-closed, second switch 140-closed, internal switches 115,125-open)

The controller 20 may be configured to allow the first external switch 130 and the second external switch 140 to be closed and the first external power switch 110 and the second external power switch 120 to be turned on, 115, and 125 are opened.

In parallel connection, the current of the first power source unit 110 is superposed on the current of the second power source unit 120 from the anode terminal 1 through the external diode 119 and the node 2 through the node 6. At the same time, the current of the second power source unit 120 is superimposed on the current of the first power source unit 110 from the anode ⑤ through the external diode 129 and from the node ⑥. The superimposed current flows into the load LOAD. The current through the load (LOAD) flows to the negative terminal ⑦.

Accordingly, when the power source units 110 and 120 are one unit V and one unit A, respectively, the voltage and current to be applied to the load are V per day and unit A, respectively.

3) Experimental Example

Hereinafter, the load LOAD is an electrolytic apparatus for water decomposition, and the power supply units 110 and 120 are connected in parallel. The currents are fixed at 30 A and 40 A, and a comparison between one power supply unit and two power supply units, Saving effect. The measurements are shown in Tables 1 and 2 below.

(Table 1 - Experiment with current fixed at 30A)  Item  Output secondary side Input primary (220V) Voltage electric current Voltage Average consumption
Amount of electricity Remarks One power connection 7.8V 30A 220V 900Wh 100% Two power connections Parallel connection 5.35V Each 15A 220V 800Wh 88.9% Input primary
Reduction% 11.1%

(Table 2 - Experiment with fixed current of 40A) Item Output secondary side Input primary (220V) Voltage electric current Voltage Average consumption
Amount of electricity Remarks One power connection 12.1V 40A 220V 1,200Wh 100% Two power connections Parallel connection 7V 20A each 220V 1,100Wh 91.7% Input primary
Reduction% 8.3%

As shown in the above experimental data, it can be confirmed that when the load is connected to the electrolytic device, the electrolytic voltage of the secondary side of the output is lowered by the parallel connection of the power source, thereby reducing the power at the input primary side.

It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description, and all changes or modifications derived from the scope of the claims and their equivalents should be construed as being included in the scope of the present invention.

10: superposition circuit,
110: first power supply unit,
120: second power supply unit,
111 and 121: power source,
115, 125: internal switch,
130: first external switch,
140: second external switch,
113, 123: internal diodes,
119, 129, 139, 149: external diodes,
20: Control section.

Claims (5)

A first power supply unit 110 including an internal diode 113 connected to the other end of an internal switch 115 having one end connected to the positive electrode of the power supply 111 and the other end connected to the negative electrode of the power supply 111, And an internal diode 123 connected to the other end of the internal switch 125 whose one end is connected to the positive electrode of the power source 121 and the other end is connected to the negative electrode of the power source 121, One end of which is connected to the cathode of the power source 121 and the other end of which is connected to the cathode of the power source 111 and a load LOAD which is an electrolytic device, The other end of the diode 119 is connected to the other end of the external diode 149 connected to the load LOAD at one end thereof and connected to the other end of the external diode 119 connected at one end thereof to the anode of the power source 111, , One end of which is connected to the positive electrode of the power source (121), and the other end Wherein the anode of the power supply 111 is connected to the other end of the internal diode 123 and the internal switch 125. The external diode 129 is connected to the load LOAD and one end of the external diode 149, The other end of which is connected to a connected node; And
The control unit 20 controls the first power supply unit 110 and the second power supply unit 120 to be connected in series or in parallel by controlling the internal switches 115 and 125 and the external switches 130 and 140 to be opened or closed, ), ≪ / RTI >
The control unit (20)
The first external switch 130 and the second external switch 140 are controlled so that the first power supply unit 110 and the second power supply unit 120 of the superposing circuit 10 operate in series connection The first power supply unit 110 and the second power supply unit 120 of the superimposing circuit 10 are operated in parallel to each other so that the internal switches 115 and 125 are closed, Controlling the external switch 130 and the second external switch 140 to be closed and the internal switches 115 and 125 to be opened
An apparatus for superimposing a DC voltage or current for efficient control of electric energy in an electrolytic apparatus. delete delete delete The method according to claim 1,
The internal diode 113 interrupts current conduction from the anode of the power source 111 in the negative direction and the internal diode 123 interrupts current conduction from the anode of the power source 121 in the negative direction
An apparatus for superimposing a DC voltage or current for efficient control of electric energy in an electrolytic apparatus.

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