KR200416182Y1 - Switchgear with photovoltaic generation - Google Patents

Abstract

The present invention can reduce power consumption by providing power generated by the photovoltaic roof structure as part of the electricity distribution of the switchgear, and supply power to some external equipment connected to the switchgear in case of power failure. It aims to provide a photovoltaic power distribution panel using environmentally friendly natural energy that can be protected.

The photovoltaic switchgear according to the present invention has a box-type body casing (100) pre-installed with basic switchgear components such as an automatic section switchgear, lightning arrester, line breaker, power meter, transformer, and central control circuit breaker. A circuit storage box 301 installed to maintain a distance between the basic switchgear components and the interior thereof; A photovoltaic roof structure (200, 200 ') installed above the main body casing (100); The photovoltaic module 310 installed inside the photovoltaic roof structures 200 and 200 ′ accumulates power in the first storage battery 350 and the second storage battery 351 so that the storage power is at least a secure load. It includes a photovoltaic control system 300 coupled to the main distribution line 91 of the distribution equipment to supply to.

Solar power, switchgear, wind power, photovoltaic roof structure, automatic switching device

Description

Photovoltaic Power Distribution Board {SWITCHGEAR WITH PHOTOVOLTAIC GENERATION}

1 is a view showing the internal structure of the switchgear according to the prior art,

2 is a front view of a photovoltaic power distribution panel according to an embodiment of the present invention,

3 is a view showing the internal structure of the photovoltaic power distribution panel shown in FIG.

4 is a circuit diagram of the photovoltaic power distribution panel shown in FIG.

5 is a view showing the internal structure of the photovoltaic switchgear according to an application of the present invention.

           <Description of Symbols for Main Parts of Drawings>

100: main body casing 200, 200 ': solar power roof structure

301: circuit storage box 302: battery storage box

300: solar power control system 310: solar module

320: light tracking mechanism device 340: intelligent changeover switch

350, 351: first and second storage battery 360: wind power module

370: uninterruptible automatic switching device 380: solar power control inverter

The present invention relates to a photovoltaic power switchgear, and more particularly, to a photovoltaic power switchgear capable of generating power using natural forces such as solar light and wind power and actively responding to power failure of the switchgear itself.

In general, photovoltaic power generation means concentrating (heating) solar light on a solar cell or a photovoltaic module to perform power generation.

The solar module is called a solar module as a kind of solar panel, and there are a general type, a window type, a tracking type, and a hybrid type (type in parallel with other clean energy generating means).

The principle of photovoltaic using the photovoltaic module is carried out by the photovoltaic effect. When solar light is irradiated to a pn junction solar farm with n-type doping on a silicon crystal, Electromotive force by electron-holes is generated by light energy, which is called photovoltaic effect.

For example, when light is incident on the solar module from outside, electrons in the conduction band of the p-type semiconductor are excited to the valence band by the incident light energy, and the electrons thus excited are One electron-hole pair (EHP: electron hole pair) is generated inside the p-type semiconductor, and electrons in the electron-hole pairs thus generated are transferred to the n-type semiconductor by an electric field existing between pn junctions. It passes over and supplies current to the outside.

Photovoltaic modules include crystalline or amorphous silicon (Si), gallium arsenide (GaAs), cadmium telluride (CdTe), and polycrystalline thin-film carpiumdium diselenide (CuInSe2: CIS).

Most solar modules store DC power in a battery, and the DC power stored in the battery is converted into AC power through an inverter device and then supplied to a load such as a lamp.

However, since general solar modules are arranged with solar cells facing the direction of irradiation of solar light, in order to produce electric power for a desired amount of power generation, expensive products (eg, gallium arsenide solar cells, etc.) having high solar cell generation efficiency are used. Or, because the planar area of the solar cell area should be widened, there is a problem in installation and construction.

In addition, in the case of a track type product of a general solar module, since it is disposed in an open state outside the installation structure, mechanical driving or moving structure is very vulnerable to severe recirculation environment, rain, snow, wind, frequent maintenance and There is a problem of replacement parts.

On the other hand, the switchgear is responsible for receiving power from the power provider and supplying power to the equipment that requires power consumption, and refers to the related equipment of the normal substation with a power receiving facility and a distribution facility. For example, the interior of the switchgear is divided into a special high side and a low voltage side, and a transformer for receiving electricity from KEPCO, a power provider, and a transformer for supplying electricity received through the power plant to a voltage or capacity required by a factory or a user. Or it has a power distribution facility equipped with a breaker, etc. to protect the entire facility from an accident such as a power failure.

As shown in FIG. 1, the switchboard according to the prior art has an inner space divided into upper and lower portions by the supporting bracket 16, and at the same time, the upper and lower spaces by the supporting bracket 16 and the vertical brackets 16 'and 16 ". It is divided into front and rear, and the front and rear is provided with a sight window, the low pressure side switch for power distribution and the breaker knob 24 and the door (5, 5,) that can check the instrument box (9) from the outside is installed, both sides There is a see-through window that can be seen with the naked eye, the lower panel has a case (13) formed with a cooling air passage (10) connected to the lower front space of the support bracket (16); A transformer 11 arranged to be mounted on a rail 12 in a lower front space divided by a vertical bracket 16 'and an upper surface of the transformer upper sealing plate 28 and a gasket. Space spaced by the cooling air passage (33) In the lower portion, there are formed a plurality of cooling air nozzles through which the cooling air introduced through the cooling air passages 10 and 33 is injected into the heat dissipation structure, and the cooling air passages through which the air is discharged to the outside through the side walls. A transformer case in which the transformer 11 is inserted, the power meter 14 and the meter disposed in the lower rear space 14 'divided by the support bracket 16 and the vertical bracket 16'. A circuit protection line section automatic switchgear (15) installed in an upper front space (15 ') divided by the support bracket (16) and the vertical bracket (16 "); It consists of an arrester 6 and a power fuse 7 arranged in the rear space 14 "of the support bracket 16 and the vertical bracket 16".

However, in the switchgear according to the prior art, the power supply to the interior of the building may be interrupted due to an electrostatic accident occurring once or twice a year, and thus, electrical stability may not be secured.

In this case, in the prior art, there is a disadvantage in that maintenance is inconvenient, such as manually performing an electrostatic recovery operation by inserting a professional technician into the switchboard.

Meanwhile, other conventional technologies have introduced web-based real-time remote and unmanned power monitoring technology by combining CDMA technology and Internet technology in the switchgear, but due to the absence of a technology that can reduce power consumption in the switchgear itself, it is environmentally friendly and power consumption efficiency. The demand for this high switchboard has not been revived.

Accordingly, an object of the present invention for solving the above-mentioned problems is to provide the power generated by the photovoltaic roof structure as part of the electricity supply of the switchgear panel in general, to reduce the power consumption, even in the event of power failure. It is intended to provide a photovoltaic power distribution panel using environmentally friendly natural energy that can supply power to some connected external equipment to protect external equipment.

In addition, another object of the present invention is to provide a photovoltaic power distribution panel that can be installed in the automatic photovoltaic tracking type solar module inside the switchgear, to ensure the structural stability, durability and operational safety of the solar module.

In addition, another object of the present invention is to provide a high efficiency power generation by condensing the sunlight and reflected light by the solar panel module of the dual-layer structure and the light reflection layer installed on the inner surface of the photovoltaic roof structure To provide a photovoltaic switchgear.

In addition, another object of the present invention is to provide a photovoltaic power switchgear that can be used to install the power generation in the switchboard even in cloudy and cloudy weather that is impossible with photovoltaic power generation by installing a wind module.

In addition, another object of the present invention is to provide a photovoltaic power distribution panel that can be provided with a first storage battery for photovoltaic power and a second storage battery for uninterruptible power supply so that power is supplied to at least the required load of the switchgear in case of power failure. I would like to.

The object of the present invention as described above, in the photovoltaic power switchgear having a box-type body casing pre-installed basic switchgear components such as automatic switchgear breaker, lightning arrester, line breaker, power meter, transformer, central control breaker, A circuit storage box installed to maintain a clearance distance with the basic switchgear component inside the main body casing; A photovoltaic roof structure installed above the main body casing; The photovoltaic module installed inside the photovoltaic roof structure is a photovoltaic module coupled to the main distribution line of the power distribution facility to store power to at least a secure load by accumulating power in the first and second storage batteries. It is achieved by a photovoltaic power distribution panel comprising a power generation control system.

Hereinafter, exemplary embodiments of the present invention will be described with reference to FIGS. 2 to 5.

In the drawings, Figure 2 is a front view of the photovoltaic power switchboard according to an embodiment of the present invention, Figure 3 is a view showing the internal structure of the photovoltaic switchgear shown in Figure 2, Figure 4 is shown in Figure 2 It is a circuit diagram of the photovoltaic switchgear. And, Figure 5 is a view showing the internal structure of the photovoltaic switchgear according to the application of the present invention.

First, as shown in FIG. 2, the photovoltaic power distribution panel of the present invention includes a main body casing 100 having a box shape as a panel assembly structure; The main body casing 100 has a photovoltaic roof structure 200 on top.

The main body casing 100 can be opened and closed by a door 102 provided with a see-through window 101 and the like, respectively, for identifying the inside with the naked eye, on the front or the back, and is built on a concrete pouring base, and a standard distribution board standard enclosure standard. It is desirable to have an appearance suitable for.

The main body casing 100 follows the enclosure type of the Korean switchgear standard, and may be manufactured as one of a single type, a simultaneous type, and a buried type.

The main body casing 100 includes a first panel 110 made of a material having an induction shielding paint applied to a surface thereof and filled with a porous sound absorbing material and a dustproof pad therein; It is manufactured to form a box shape as the second panel 120 made of a reinforcing material having a reinforcing rib in the base material.

Here, the first panel 110 of the main body casing 100 forms four walls and a bottom surface of the main body casing 100, and the second panel 120 forms a ceiling.

In particular, the ceiling plays a role as a partition wall separating the main body casing 100 and the photovoltaic roof structure 200, and the load of the second panel 120 itself is formed by the second panel 120. It is designed to withstand the load of the photovoltaic module and the light tracking mechanism of the photovoltaic control system 300 and external loads such as rain, snow, and the like.

Low voltage side switch and breaker knob for power distribution, instrument box, transformer, power meter, circuit protection line section automatic switch, lightning arrester and power fuse, first power distribution line and second, suitable for standard switchgear configuration. It is provided with a power distribution facility and a distribution facility including a distribution line, and the description of these basic switchgear components are notified and thus are omitted from the description of the present invention.

In particular, the main components of the photovoltaic control system 300 including an uninterruptible automatic transfer switch (ATS) connected between the first distribution line and the second distribution line is installed inside the main body casing 100. do.

The first distribution line is for distributing power to each of the basic loads such as a motor control center (MCC), heating equipment, and extra equipment. The second distribution line is for computing and security equipment, lights and To distribute power to each of the secured loads, such as emergency lights.

Then, the photovoltaic module and the light tracking mechanism of the photovoltaic control system 300 is installed inside the photovoltaic roof structure 200. The photovoltaic roof structure 200 may additionally have a wind power module 360 as shown in FIG. 5.

The photovoltaic roof structure 200 is installed above the main body casing 100 and has a roof panel 210 and a roof transparent window 220.

The photovoltaic roof structure 200 is a centrally protruding roof structure according to the first embodiment. To this end, the roof panel 210 has a planar area of upper and lower light, and the side junctions thereof are connected to each other, and are manufactured to have a rectangular cone shape in a state in which the roof transparent window 220 is horizontally coupled to the central upper part as a whole. The inner space for installing the photovoltaic module and the light tracking mechanism of the photovoltaic control system 300 is formed above the ceiling of the casing 100, and the material of the roof panel 210 is the main casing 100. It is the same as the first panel 110 of.

In addition, the roof transparent window 220 is preferably made of synthetic resin such as tempered glass, polypropylene, etc., having high rigidity and high transmittance (eg, 90% or more).

In addition, although not shown, the roof transparent window 220 includes, as an additional installation item, a snow removal mechanism corresponding to any one of a wiper device for removing foreign matter from a hot wire or a transparent window; Snow detection sensor; Snow removing means consisting of the controller for controlling the snow removal mechanism may be further coupled.

In the snow removing means, the heating wire or the wiper motor is driven using either the storage power of the first storage battery for photovoltaic power generation or the converted power in which commercial power is converted to the heating wire or the wiper motor, and in particular, the controller detects snow cover. After determining that snow accumulates above a predetermined amount by using a sensor, the snow wire or the wiper motor of the snow removing apparatus is operated to melt or sweep the snow to the outside of the roof transparent window 220. It is supposed to be removed.

As shown in FIG. 3, the solar module 310 of the photovoltaic control system 300 is disposed on the upper surface of the ceiling second panel 120 of the main body casing 100 in a vertical downward direction of the roof transparent window 220. And a light tracking mechanism 320 is installed.

The photovoltaic module 310 may be manufactured in any one of a dual panel structure or a single layer panel structure stacked in two.

If the dual panel structure is manufactured, the photovoltaic module 310 may be formed of crystalline or amorphous silicon (Si), gallium arsenide (GaAs), cadmium telluride (CdTe), and polycrystalline thin-film carpiumdium selenide (CIS). A first panel including a light collecting part of a selected material, a borosilicate glass layer laminated on the light collecting part, and a frame part surrounding the light emitting part and the edge portion of the glass layer laminated; A plurality of optical sensors mounted at corners of the first panel, respectively, for detecting an incident direction by sensing an amount of light in an east-west direction and a north-south direction; A second panel configured in the same manner as the first panel, but having an installation direction of the light condenser facing away from the first panel; The light tracking mechanism 320 is interposed between the first panel and the second panel and is fastened to each other, and is supported by the frame part by the inner surface of the center of the first panel. It is preferable that the support bracket for the connection to the mounting is formed, and a through hole is formed in the center portion of the second panel so that the support bracket can pass therethrough.

The light tracking device 320 is a structure for tracking the sunlight, and it calculates the annual mean south-mid elevation to calculate the optimal angle of incidence of sunlight, and finds the angle of incidence corresponding thereto, within a finite rotation angle range in the east-west direction and the north-south direction. In the solar module 310 is to rotate.

For example, the light tracking mechanism device 320 is connected to one side of the support bracket of the photovoltaic module 310, the other side of the connecting shaft having a rotating part such as a pivot or a hinge, and the first rotating force to the rotating part of the connecting shaft A gear-type first servomotor having a rotational axis for transmitting the connection shaft within a finite rotational angle range based on a tilting direction (eg, north-south direction) by transmitting a; Gear-type agent having a rotating shaft for transmitting the second rotational force to the motor housing fixed to the casing of the first servo motor to rotate the motor housing within a finite rotation angle range based on the rotation direction (for example, east-west direction) 2 servo motors; And an optical tracking circuit unit electrically connected to the optical sensor of the solar module 310 and electronically configured to calculate an incident angle and an incidence direction in consideration of the yearly average south altitude.

Here, the casing of the second servo motor is mounted and fixed to the corresponding motor housing, and the second servo motor related motor housing is supported by the second panel 120 of the main body casing 100.

The light tracking mechanism device 320 corresponds to the direct sunlight S1 while rotating the photovoltaic module 310 in the east-west direction or the north-south direction so that the photovoltaic module 310 faces the sunlight by the light tracking circuit unit. Solar light is concentrated on the front panel of the solar module 310 to primarily perform photovoltaic power generation.

In particular, the interior space of the photovoltaic roof structure 200 is at least between the junction of the roof transparent window 220 and the roof panel 210 and the second panel 120 corresponding to the ceiling of the body casing 100. It is preferable that one reinforcement shaft 309 is erected. It is preferable that the reinforcing shaft 309 is also covered with a thin film of reflector plates 221 and 222 described below.

The reflecting plates 221 and 222 may be formed of silver foil, mirror, stainless steel plate having fine surface processing, and the like corresponding to the inner surface of the roof panel 210 of the photovoltaic roof structure 200 and the ceiling of the main body casing 100. This means that the upper surface of the panel 120 and the like are bonded, bonded, laminated, or bonded in a manner such as.

The reflector plates 221 and 222 reflect the solar light introduced through the roof transparent window 220 of the photovoltaic roof structure 200 in addition to the incident angle or the incident direction, and the reflected reflected light S2 is the solar module 310. Secondary photovoltaic power generation is performed by condensing on the second panel on the rear side of the panel.

The photovoltaic module 310 located in the interior space of the photovoltaic roof structure 200 uses a first transmission line 311 extending through the second panel 120 corresponding to the ceiling of the main body casing 100. Is connected to the connection terminal box 390 inside the main body casing 100.

The connection terminal box 390 has a plurality of sockets to which the first and second transmission lines 311 and 361 are connected, and is preferably mounted in the circuit storage box 301 of the photovoltaic control system 300. Do.

Here, the circuit storage box 301 and the battery storage box 302 is installed inside the body casing 100 in a state fixed to the inner frame extending in the vertical direction or the left and right directions in the body casing 100, At this time, it is preferable to maintain a clearance distance of a predetermined size (for example, 20 cm) and a basic switchgear component pre-installed in the main body casing 100, it is preferable that it is manufactured by a conventional lightning protection technology.

The connection terminal box 390 may be connected by a terminal of the first transmission line 311 of the solar module 310 or a terminal of the second transmission line of the wind module such as a wind power generator. It is made.

The circuit storage box 301 of the photovoltaic control system 300 and the storage battery storage box 302 which will be described below include an uninterruptible automatic switching device, a photovoltaic control inverter, first and second storage batteries, and intelligent switching. It is made of a panel that can securely protect the storage inside the box, such as switches, regardless of electrical and electromagnetic effects, the panel comprises a non-metal plate such as aluminum; A magnetic field shielding plate selected from a general steel sheet, a silicon steel sheet, and an amorphous sheet stacked on an inner surface of the nonmetal plate; It has an induction shielding paint layer applied to the outer surface of the non-metal plate. Here, the general steel sheet, silicon steel sheet, amorphous sheet and the like as a magnetic shield plate plays a role of inducing electromagnetic energy reduction by reflection loss, absorption loss, internal multiple reflection loss and the like.

The first and second connection wires 381 and 382 are used between the circuit storage box 301 and the storage battery storage box 302 of the photovoltaic control system 300 to perform power storage and supply. .

The storage battery storage box 302 is a built-in first storage battery, the second storage battery and the intelligent changeover switch of the photovoltaic control system 300 to be described below, and serves to protect from electrical and magnetic shock, the storage battery It is preferable that the material of the storage box 302 and the clearance distance at its installation are similar to or the same as the material and clearance distance of the circuit storage box 301 described above.

Hereinafter, the circuit coupling relationship of the photovoltaic switchgear of the present invention will be described.

As shown in FIG. 4, as shown in the upper portion of the circuit diagram of the photovoltaic power distribution panel, the basic circuit configuration area 90 composed of basic switchgear components corresponds to an extra-high voltage switchgear facility, and is typically a power input portion. Auto Section Switch, Lightning Arrester, Power Fuse or COS, Metering Out Fit (MOF), Transformer (Electric Potential TR), Central Control Circuit Breaker Main Control Breaker).

This basic circuit configuration area 90 is coupled with the photovoltaic control system 300 through the main distribution line 91 on the distribution facility side.

For example, in the main distribution line 91 of the distribution equipment already installed inside the main body casing of the photovoltaic power distribution panel, wiring for use in low voltage indoor circuit protection of 600 V AC or less and 250 V DC or less for an electric motor control panel, heating equipment, or extra equipment. A first distribution line 331 having a breaker (MCCB); Second distribution lines 332, which also have circuit breakers, are connected in parallel for computing and security equipment, lights and emergency lights.

The main distribution line 91 at the end of the photovoltaic power distribution panel distributes commercial power for distribution to the first distribution line 331.

Further, the main distribution line 91 of the photovoltaic power distribution panel is connected to the first input terminal 371 of the uninterruptible automatic switching device 370 in parallel so as to supply commercial power for distribution to the uninterruptible automatic switching device 370. .

In addition, the connection wire 378 connected to the photovoltaic control inverter 380 is connected to the second input terminal 372 of the uninterruptible automatic switching device 370 to supply the storage power to the uninterruptible automatic switching device 370. have.

In addition, the second power distribution line is connected to an output terminal 373 of the uninterruptible automatic switching device 370 to supply either commercial power or storage power to the second power distribution line 332 from the uninterruptible automatic switching device 370. have.

The uninterruptible automatic switching device 370 of the present invention has a phase difference of less than 10 degrees of electric angle, a frequency difference of less than 0.2 Hz, an instantaneous linking time of less than 0.05 seconds, and a voltage difference of less than 5% between commercial power and storage power. An automatic switching circuit unit 374 configured to electronically switch the switching mechanism to supply either one of commercial power and storage power to the second distribution line under an automatic switching condition including a voltage comparison value; A power failure detection circuit installed at the first input terminal 371 to check commercial power, and outputting a first result by comparing the checked commercial power value with an automatic switching condition; A power storage amount sensing circuit installed at the second input terminal 372 to check the power storage power and outputting a second result value by comparing the supply power of the power storage power with a predetermined threshold voltage value; The automatic switching circuit unit receives the first result value and the second result value as a communication signal to the second communication module of the intelligent switching switch 340 or receives a charging completion signal of the second battery 351 from the second communication module. It consists of a first communication module configured to input to (374).

Here, the second storage battery 351 preferably has a battery capacity that can supply power to the security load for more than a predetermined recovery time after a power failure.

In addition, the first module of the uninterruptible automatic switching device 370 and the second communication module of the intelligent changeover switch 340 are manufactured and implemented by a general communication technology capable of two-way communication such as a serial communication method and a power line communication method. It is preferable to be communicatively coupled by a communication connection line.

In addition, the first result value means that the power failure is caused by the automatic switching condition, the second result value means that the storage power is insufficient.

One end of the switching actuation mechanism related to the automatic switching circuit part is connected to the output end 373, and the other end of the switching actuation mechanism is connected to either the first input end 371 or the second input end 372. The switch is operatively coupled by a trip structure using an electromagnetic force controlled by the transfer circuit unit.

The photovoltaic control inverter 380 connects the generated power using natural energy with the first and second transmission lines 311 and 361, such as the solar module 310 or the wind module 360, and the box 390 and the box. A charging circuit coupled to be supplied via an internal line and interlocked with the intelligent changeover switch 340; It consists of an inverter circuit which converts the electrical storage power of the first and second storage batteries 350 and 351 into a commercial power format (for example, converts direct current electricity into alternating current electricity).

The charging circuit of the photovoltaic control inverter 380 and the intelligent changeover switch 340 are connected via a connection cable 345 to enable interworking.

The charging circuit of the photovoltaic control inverter 380 is parallel to the first storage battery 350 for photovoltaic power and the second storage battery 351 for uninterruptible power supply using an overcharge protection module and a first connection wire 381. It is connected to the to charge and accumulate the generated power in the form of storage power, the first to charge the second storage battery 351, and then it is determined that the second storage battery 351 is fully charged within a predetermined allowable range. In this case, the first storage battery 350 instead of stopping the charging of the second storage battery 351 by activating the switching operation mechanism 344 for switching the charging position of the intelligent switching switch 340 in conjunction with the intelligent switching switch 340. Starts charging, and intelligently switches the charging completion signal, which means when the storage power of the first storage battery 350 reaches a charging range that can be used for a secure load under the charging completion condition of the second storage battery 351. Second communication module of the switch 340 To be composed of an electric circuit passing ever is preferred.

The first and second storage batteries 350 and 351 are connected to supply the storage power to the intelligent changeover switch 340, respectively.

The intelligent changeover switch 340 includes a plurality of input contacts for connection with the first and second storage batteries 350 and 351; An output contact point for connection with the solar power control inverter 380; Configured to receive a first result value or a second result value from the first communication module of the uninterruptible automatic switching device 370, or transmit a charging completion signal received from the photovoltaic control inverter 380 to the first communication module. A second communication module; Charging position switching for selectively connecting and energizing any one of the input contacts and the output contact based on the first result value of the power failure accident received through the second communication module and the second result value of power storage shortage. Switching actuator 344.

The intelligent changeover switch 340 may be included in an internal configuration circuit of the photovoltaic control inverter 380 to interlock with the photovoltaic control inverter 380 as a module type.

The intelligent changeover switch 340, the photovoltaic control inverter 380, and the uninterruptible automatic switching device 370 are provided with a separate switch internal rechargeable battery, and are primarily supplied with commercial power supplied from the main distribution line 91 of the switchgear. The internal battery of the switch may be charged and used as operating power, or the internal battery of the first battery 350 may be charged and used as operating power through power generation.

Hereinafter, the operation relationship of the photovoltaic power switchgear of the present invention.

1. Operation using only commercial power

When the operation of the photovoltaic power distribution panel of the present invention is turned on, after receiving high voltage power from KEPCO, which is a power provider, the main distribution of the power distribution equipment through an automatic section line breaker, a line breaker, a power meter, a transformer, etc. Line 91 is supplied with low voltage side commercial power.

In the initial operating state, the uninterruptible automatic switching device 370 energizes the first input terminal 371 and the output terminal 373 by the automatic switching circuit unit 374, and interrupts the second input terminal 372 and the output terminal 373. It is supposed to be.

Thus, the low-voltage commercial power through the main distribution line 91 is a basic load such as an electric motor control panel, heating equipment, redundant equipment through the first distribution line 331 and its circuit breaker; The second power distribution line 332 and the circuit breaker thereof are distributed in a security load requiring protection and use even in a power failure such as computer and security equipment, lights and emergency lights.

2. Operation that combines commercial power and storage power

The photovoltaic power distribution panel of the present invention is the solar module 310 or the wind module 360 from the time when its operation is turned on (ON) performs the power generation using the natural force.

In the case of the solar module 310, the reflected light by the collected direct sunlight and the reflecting plate performs power generation through the photovoltaic effect in the solar module 310, in the case of the wind module 360, the hydrodynamic energy of the wind is rotated It generates electricity by converting it into energy and electric energy.

The generated power is generated by the first and second transmission lines 311 and 361, the connection terminal box 390 and the inner circuit of the box, the overcharge protection module of the photovoltaic control inverter 380, the charging circuit, and the first connection wire 381. ) Is supplied to the charging circuit of the photovoltaic control inverter 380 to charge the first and second storage batteries 350 and 351.

The charging circuit of the photovoltaic control inverter 380 stabilizes the generated power irregularly supplied by the overcharge protection module, and then first charges the uninterruptible power supply second storage battery 351.

Thereafter, when the second storage battery 351 is charged within a predetermined allowable range, the charging circuit of the photovoltaic control inverter 380 is charged with the intelligent switching switch 340 in conjunction with the intelligent switching switch 340. The switching operation mechanism 344 for position switching is operated to start charging in the first storage battery 350 instead of stopping the charging of the second storage battery 351.

Subsequently, the charging circuit of the photovoltaic control inverter 380 checks the charging amount of the first storage battery 350, and the storage power of the first storage battery 350 is applied to the load under the condition of completion of the charging of the second storage battery 351. When it reaches within the range that can be used, the charging completion signal is transmitted to the second communication module of the intelligent changeover switch 340.

Thereafter, the second communication module of the intelligent conversion switch 340 transmits a charging completion signal to the first communication module of the uninterruptible automatic switching device 370.

The first communication module of the uninterruptible automatic switching device 370 inputs the received charging completion signal into the automatic switching circuit unit 374. In this case, the inverter circuit of the photovoltaic control inverter 380 and the second input terminal 372 become energized to be able to supply the storage power of the first storage battery 350 to the uninterruptible automatic switching device 370. .

When the charge completion signal is input to the automatic switching circuit unit 374, the '1. Unlike the operation using only commercial power, the automatic switching circuit unit 374 operates its switching operation mechanism to control the first input terminal 371 and the output terminal 373 and at the same time, the second input terminal 372 and the output terminal 373. Energize

Accordingly, after the storage power of the first storage battery 350 is changed into a commercial power type through the photovoltaic control inverter 380, the second input terminal 372 of the uninterruptible automatic switching device 370 through the connecting wire 378. ) To the second distribution line 332, circuit breakers, and security loads (e.g. computer and security equipment, lights and emergency lights).

That is, the photovoltaic power distribution panel according to the present invention supplies electric power to the basic load associated with the first distribution line 331 with commercial power of the main distribution line 91, and supplies the electrical storage power of the first storage battery 350 to the second distribution line. (332) By supplying power to the relevant security load, the power consumption of the entire load can be reduced by 10-30% by the amount of power consumed by the existing security load.

In addition, in the present invention, by using the solar light and wind power at the same time, the electrical storage power can be used even in a cloudy and windy environment.

Thus, in the present invention, even if a power failure occurs during the use of solar and wind power, the power is supplied to the security load primarily by using the storage power of the first storage battery, thereby preventing at least fatal power failure related to the security load. In addition, as will be described below, the secondary countermeasure can be exerted even in a specific power failure accident.

3. Operation related to power failure of commercial power

The power failure detection circuit of the uninterruptible automatic switching device 370 has a phase difference of less than 10 degrees of electrical power, a frequency difference of less than 0.2 Hz, an instantaneous link time of less than 0.05 seconds, and a commercial power and a storage power. Power failure is determined in accordance with the automatic switching condition including the voltage comparison value within 5%.

In this case, '2. As the operation combining both commercial power and storage power, the storage power of the first storage battery 350 for photovoltaic power generation is controlled by the photovoltaic control inverter 380, the connecting line 378, and the uninterruptible automatic switching device 370. In the situation where the supply circuit is supplied to a security load such as computing and security equipment, a light and an emergency light through the second input terminal 372 and the output terminal 373 and the second power distribution line 332 of the Although 90) is inoperable due to the power failure, at least the storage power of the first storage battery 350 is supplied toward the security load, thereby providing a primary preparation for a fatal power failure related to the security load.

On the other hand, the blackout accident may occur without notice even when the storage power of the first storage battery 350 is relatively low or exhausted as described above.

In order to prepare for this, in the present invention, the first storage battery 350 and the second storage battery 351 are separately provided, and the second storage battery 351 is first charged to the maximum capacity. You can also prepare for an accident.

That is, the power failure detection circuit of the uninterruptible automatic switching device 370 inputs a first result value to the first communication module, which means that the power failure is caused by the automatic switching condition when it is determined as the outage accident as described above.

The first communication module transmits the received first result value to the second communication module of the intelligent conversion switch 340.

When the first result value is transmitted to the second communication module, the intelligent changeover switch 340 directly switches the switching operation mechanism 344 for switching the charging position from the first storage battery 350 to the second storage battery 351. The power supply of the second storage battery 351 that is not normally used and is fully charged in advance may be safely supplied to the secure load.

Thus, since the power storage power of the second storage battery 350 is supplied to the security load side, it is possible to prepare secondarily for a fatal power failure accident related to the security load.

4. Operation regarding lack of storage power of primary battery

The capacitance detection circuit of the uninterruptible automatic switching device 370 checks the electrical storage power at the second input terminal 372.

If, as a result of the check of the power storage amount sensing circuit of the uninterruptible automatic switching device 370, it is determined that the amount of storage power supplied to the first storage battery 350 is unsuitable so that it cannot be used for a secure load, the uninterruptible automatic switching device 370 After transmitting the second result value indicating the lack of storage power to the first communication module of) through the second communication module of the intelligent conversion switch 340 to the charging circuit of the photovoltaic control inverter 380, charging The first storage battery 350 is charged by the circuit and the solar module 310 and the wind power module 360.

In addition, the uninterruptible automatic switching device 370 energizes the first input terminal 371 and the output terminal 373 by the automatic switching circuit unit 374, and intercepts the second input terminal 372 and the output terminal 373 to charge the battery. Maximize efficiency

As shown in FIG. 5, the photovoltaic power distribution panel of the present invention may also be applied to a one-sided sloped photovoltaic roof structure 200 ′.

The photovoltaic roof structure 200 'includes a roof panel 210 disposed at one side and a roof transparent window 220 at the other side thereof, and a photovoltaic roof structure corresponding to the vertical lower portion of the roof transparent window 220. The solar module 310 of the photovoltaic control system 300 is installed in the interior space of the 200 ', and the roof panel 210 disposed on the one side is disposed in one direction only from the roof transparent window 220. It is preferable to form the inclined and to install the wind power module 360 on the upper surface of the roof panel 210.

Here, the other side of the roof transparent window 220, the finishing wall is extended in the vertical downward direction is coupled to the upper side of the main body casing 100, other roof panels other than the inclined roof panel 210 is a right angle pentagonal planar area It has to be coupled to the front and back.

If, in the present invention does not use a reflecting plate, the roof panel 210 can be used to manufacture the photovoltaic roof structure 200 'of the present invention by using a thin and transparent material formed of course.

The present invention configured as described above has the advantage of providing a photovoltaic power switchgear that can be very economical operation by reducing the power consumption of the entire load associated with the switchgear using natural energy such as wind, solar light.

In addition, the photovoltaic power distribution panel according to the present invention includes a first distribution line connected to an essential load such as an electric motor control panel, heating equipment, extra equipment; After classifying the second power distribution line connected to the security loads such as computer and security equipment, light and emergency light, the uninterruptible automatic switching device is combined between these lines, and the power storage infinitely produced by natural energy through the uninterruptible automatic switching device. By supplying power to at least the required load at all times, it is possible to supply power to the required load even in the event of a power failure, and there is an advantage in that power consumption can be reduced as much as the power consumption of the required load even in the case of non-outage.

In addition, the photovoltaic switchgear according to the present invention has the advantage that the first storage battery for photovoltaic power generation and the second storage battery for uninterruptible power supply are separately provided so that power is necessarily supplied to at least the required load of the switchgear in case of power failure. .

In addition, the photovoltaic switchgear panel according to the present invention has the advantage of maximizing the durability and safety of the photovoltaic module and its associated light tracking mechanism by safely storing the photovoltaic module inside the photovoltaic roof structure. .

In addition, the photovoltaic switchgear according to the present invention has the advantage of realizing high-efficiency photovoltaic power generation using a dual-layered solar panel and a light reflection layer installed on the inner surface of the solar roof structure.

Claims (11)

In the photovoltaic power switchgear having a box-shaped body casing (100) pre-installed with basic switchgear components such as automatic switchgear, lightning arrester, line breaker, power meter, transformer, central control breaker, A circuit storage box 301 installed in the main body casing 100 to maintain a clearance distance with the basic switchgear component; A photovoltaic roof structure (200, 200 ') installed above the main body casing (100); The photovoltaic module 310 installed inside the photovoltaic roof structures 200 and 200 ′ accumulates power in the first storage battery 350 and the second storage battery 351 so that the storage power is at least a secure load. Photovoltaic power distribution panel comprising a photovoltaic control system 300 coupled to the main distribution line 91 of the distribution equipment to supply to. The method of claim 1, The main body casing 100 has a battery storage box 302 storing the first storage battery 350, the second storage battery 351 and the intelligent conversion switch 340 of the photovoltaic control system 300 therein. PV power distribution panel characterized in that it further comprises. The method according to claim 1 or 2, The circuit storage box 301 and the storage battery storage box 302 is made of a panel that can safely protect the objects stored in the box regardless of electrical and electromagnetic effects, the panel is made of aluminum Nonmetal plates such as; A magnetic field shielding plate selected from a general steel sheet, a silicon steel sheet, and an amorphous sheet stacked on an inner surface of the nonmetal plate; And a photovoltaic power distribution panel having an induction shielding paint layer applied to an outer surface of the nonmetal plate. The method of claim 1, The photovoltaic roof structure 200 is a central protrusion type and an internal space for installing at least the photovoltaic module 310 and the light tracking mechanism 320 by a roof panel 210 having a planar area of upper and lower light beams. Solar power switchgear, characterized in that forming a. The method of claim 4, wherein On the inner surface of the roof panel 210 is a reflecting plate 221 of the same material as the silver foil, mirror, fine stainless steel plate surface is bonded to the upper surface of the second panel 120 corresponding to the ceiling of the main body casing 100 222) PV switchgear, characterized in that coupled. The method of claim 1, The photovoltaic module 310 is a dual-layered dual panel structure, which includes crystalline or amorphous silicon (Si), gallium arsenide (GaAs), cadmium telluride (CdTe), and polycrystalline thin-film carpiumdium selenide (CuInSe2; CIS). A first panel including a light collecting part made of a selected material, a borosilicate glass layer laminated on the light collecting part, and a frame part covering the edge where the light collecting part and the glass layer are laminated; A plurality of optical sensors mounted at corners of the first panel, respectively, for detecting an incident direction by sensing an amount of light in an east-west direction and a north-south direction; A second panel configured in the same manner as the first panel, but having an installation direction of the condenser facing away from the first panel; The optical tracking mechanism device 320 is interposed between the first panel and the second panel and is fastened to each other, and is supported by the frame part on the inner surface of the center of the first panel. And a support bracket for connection to the solar cell, and a through hole is formed in the central portion of the second panel so that the support bracket passes therethrough. The method of claim 1, The photovoltaic control system 300 is connected in parallel to the main distribution line 91 of the power distribution equipment installed in the main body casing 100 in parallel, AC 600V or less for the motor control panel, heating equipment, extra equipment, A first distribution line 331 having a circuit breaker for use in protecting a low voltage indoor converter having a direct current of 250V or less; A second distribution line 332 connected in parallel to the main distribution line 91 and having a circuit breaker for computing and security equipment, lights and emergency lights; Including an uninterruptible automatic switching device 370 coupled between the first distribution line 331 and the second distribution line 332, The uninterruptible automatic switching device 370 includes a phase difference within 10 degrees of electric angle, a frequency difference within 0.2 Hz, an instantaneous link time within 0.05 seconds, and a voltage within 5% of a voltage difference between commercial power and storage power. An automatic switching circuit unit 374 configured to electronically switch the switching mechanism to supply one of commercial power and storage power to the second power distribution line 332 by an automatic switching condition including a comparison value; A power failure detection circuit installed at the first input terminal 371 to check the commercial power, and outputting a first result value indicating that the power failure is caused by the automatic switching condition by comparing the checked commercial power value with the automatic switching condition; An electricity storage amount sensing circuit installed at the second input terminal 372 to check the electricity storage power, and outputting a second result value indicating that the electricity storage power is insufficient by comparing a supply amount of electricity storage power with a predetermined threshold voltage value; The first result value and the second result value are transmitted to the second communication module of the intelligent conversion switch 340 as a communication signal or the charge completion signal of the second storage battery 351 is received from the second communication module. Solar power generation arrangements, characterized in that it comprises a first communication module configured to be input to the automatic switching circuit unit 374. The method of claim 7, wherein The photovoltaic control system 300 uses the first and second transmission lines (eg, the generated power using natural energy, such as the photovoltaic module 310 or the wind module 360) to interoperate with the intelligent changeover switch 340. 311 and 361 and a charging circuit coupled to be supplied via a connection terminal box 390 and an inner box of the box; An inverter circuit for converting the electrical storage power of the first storage battery 350 and the second storage battery 351 into a commercial power format is provided, and any one of the first storage battery 350 or the second storage battery 351 is provided. A photovoltaic power distribution panel comprising a photovoltaic control inverter (380) coupled to supply electrical power to the uninterruptible automatic switching device (370). The method of claim 8, The photovoltaic control system 300 supplies first and second transmission lines 311 to supply the generated power of the photovoltaic module 310 and the wind power module 360 to the photovoltaic control inverter 380. 361 is a photovoltaic power switchgear further comprising a connection terminal box 390 to which it is connected. The method of claim 8, The intelligent changeover switch 340 includes a plurality of input contacts for connection with the first storage battery and the second storage battery 350 and 351; An output contact point for connection with the solar power control inverter 380; Configured to receive a first result value or a second result value from the first communication module of the uninterruptible automatic switching device 370, or transmit a charging completion signal received from the photovoltaic control inverter 380 to the first communication module. A second communication module; A charging position switching switching mechanism 344 for selectively connecting and energizing any one of the input contacts and an output contact based on a first result value or a second result value received through the second communication module; PV power distribution panel. The method of claim 1, The photovoltaic roof structure 200 ′ is inclined on one side and includes a roof panel 210 on one side and a roof transparent window 220 on the other side, corresponding to a vertical lower portion of the roof transparent window 220. The photovoltaic module 310 of the photovoltaic control system 300 is installed in the interior space of the photovoltaic roof structure 200 ′, and the roof panel 210 disposed at one side of the photovoltaic roof structure 200 ′ is formed in the roof transparent window 220. Formed to be inclined only in one direction from), the solar panel switchgear, characterized in that installed the wind module 360 on the upper surface of the roof panel (210).

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