KR200427579Y1 - Switchgear using the solar cell generator - Google Patents

Abstract

The present invention relates to a switchgear, and more particularly, to a switchgear using solar light that can be generated by using natural forces such as solar light, wind power, and actively respond to power failure accidents of the switchgear itself.

The present invention generally includes a main power source 10 that receives commercial power from a commercial power supply unit 12, a load 40 that receives power from the main power source 10 and performs various functions, and solar energy as electric energy. The solar cell 32 to be converted, the preliminary power source 30 for storing the power generated by the solar cell 32, and the main power source 10 fail to supply power from the commercial power supply unit 12. In this case, it characterized in that it comprises a switching device 20 for switching to supply the preliminary power supply 30 to the load 40.

Solar Cell, Switchgear, Solar Energy, Switching Device, Commercial Power, Failure

Description

Switchgear using solar light {SWITCHGEAR USING THE SOLAR CELL GENERATOR}

1 is a schematic control block diagram of a switchgear using sunlight according to an embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

10: main power supply 12: commercial power supply

20: switching device 30: reserve power

32: solar cell 40: load

The present invention relates to a switchgear, and more particularly, to a switchgear using solar light that can be generated by using natural forces such as solar light, wind power, and actively respond to power failure accidents of the switchgear itself.

The switchgear is responsible for receiving power from a power provider and supplying power to equipment requiring power consumption, and refers to related equipment of a general substation with power receiving equipment and power distribution equipment. For example, the inside of the switchgear is divided into the high voltage side and the low voltage side, and the power supply facility receives electricity from KEPCO, the power provider, and the power received through the power supply facility is changed to supply the voltage or capacity required by the factory or the user. It has a distribution system with a circuit breaker, etc. to protect the entire equipment from accidents such as transformer or power failure.

The monitoring control apparatus of the conventional switchgear can be performed only when the power supply is cut off during the safety inspection of the switchgear. The inspector directly checks the current, voltage, transformer temperature change, and phase loss of the switchgear when performing the work. Since there is a need for a lot of inspection time, there is a risk of a safety accident, there was a problem that excessive inspection costs occur.

In addition, the switchgear according to the prior art may cause a power failure to occur once or twice a year, thereby interrupting the power supply to the interior of the building, thereby failing to secure electrical stability.

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.

The present invention is to solve the above problems, the purpose of the present invention is to monitor and control the power situation of the power distribution equipment, it is possible to detect and cope with real-time regardless of the place when the power situation occurs, In addition, there is no security problem, and in case of failure of the power monitoring control device installed in the power distribution facility, a spare power supply unit is installed to prevent damage to the load or other equipment supplied with power. It is to provide a switchgear using sunlight that can quickly and safely overcome the ideal of the.

The present invention generally includes a main power source 10 that receives commercial power from a commercial power supply unit 12, a load 40 that receives power from the main power source 10 and performs various functions, and solar energy as electric energy. The solar cell 32 to be converted, the preliminary power source 30 for storing the power generated by the solar cell 32, and the main power source 10 fail to supply power from the commercial power supply unit 12. In this case, it characterized in that it comprises a switching device 20 for switching to supply the preliminary power supply 30 to the load 40.

Hereinafter, with reference to the accompanying drawings, the switchgear using the solar light of the present invention in detail.

1 is a schematic control block diagram of a switchgear using sunlight according to an embodiment of the present invention.

As shown in FIG. 1, a switchgear using solar light according to a preferred embodiment of the present invention generally includes a main power supply 10 supplied with a commercial power supply from a commercial power supply unit 12, and a power supply from the main power supply 10. A load 40 for executing various functions, a solar cell 32 for converting solar energy into electrical energy, a spare power source 30 for storing power generated by the solar cell 32, and the It is configured to include a switching device 20 for switching the supply of the preliminary power supply 30 to the load 40 when the main power supply 10 is not supplied with power from the commercial power supply 12.

The present invention, in the photovoltaic power switchgear having a box-shaped body casing pre-installed basic switchgear components such as automatic switchgear circuit breaker, lightning arrester, line breaker, power meter, transformer, central control circuit breaker, the inside of the main body casing A circuit storage box installed to maintain a clearance distance with the switchboard component; 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.

The photovoltaic switchgear panel of the present invention has a panel casing and a main casing having a box shape and a solar roof structure on top of the main casing.

The main body casing can be opened and closed by a door provided on the front or the back, respectively, for visually identifying the inside of the body, and is built on the base of the concrete placing, and it is preferable to have an appearance suitable for the standard enclosure of the standard distribution panel.

The main body casing conforms to the enclosure type of the switchboard standard of the Republic of Korea, and can be manufactured in one of single type, simultaneous type, and embedded type.

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

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

In particular, the ceiling plays a role as a partition that separates the main body casing and the photovoltaic roof structure. The ceiling is composed of the second panel, and thus the load of the second panel itself, the photovoltaic module and the light tracking of the photovoltaic control system. It is designed to withstand the load of mechanical devices and external loads such as rain and snow.

Inside the main casing, low-voltage switch and breaker knob for power distribution, instrument box, transformer, power meter, circuit breaker automatic switchgear, lightning arrester and power fuse, first power distribution line and second power distribution line are installed. Power reception equipment and power distribution facilities are included, and the description of these basic switchgear components are notified because they are notified.

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, are installed inside the main body casing.

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.

In addition, the photovoltaic module and the light tracking mechanism of the photovoltaic control system are installed inside the photovoltaic roof structure. The photovoltaic roof structure may additionally have further wind modules.

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

The photovoltaic roof structure is a centrally protruding roof structure according to the first embodiment. To this end, the roof panel has a planar area of upper and lower light, and is formed to have a rectangular cone shape with its side junctions connected and the roof transparent window horizontally coupled to the upper center as a whole, and above the ceiling of the main body casing. The internal space for installing the photovoltaic module and the light tracking mechanism of the photovoltaic control system is formed, and the material of the roof panel is the same as that of the first panel of the main body casing.

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

In addition, the roof transparent window as an additional installation item, snow removal mechanism corresponding to any one of the wiper device for removing foreign wires or 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 electric power of the first storage battery for solar 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 After determining that snow accumulates more than a predetermined amount of photovoltaic power using a sensor, as the heating wire or the wiper motor of the snow removing mechanism is operated, the snow melts or sweeps outward to the outside of the roof transparent window 220. To be removed.

The circuit storage box of the photovoltaic control system and the battery storage box to be described below are built into the box such as an uninterruptible automatic switching device, a photovoltaic control inverter, first and second storage batteries, and an intelligent changeover switch. The panel is made of a panel capable of safely protecting the objects regardless of electric and electromagnetic effects, the panel comprising: 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.

First and second connection wires are used between the circuit storage box and the storage battery storage box of the photovoltaic power generation control system, so that power storage and supply are made.

The battery storage box has a role of protecting the electrical and magnetic shock by embedding the first storage battery, the second storage battery and the intelligent changeover switch of the photovoltaic control system to be described below. When installing the clearance distance is preferably similar or the same as the material and clearance distance of the circuit storage box described above.

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

The basic circuit configuration area consisting of basic switchgear components at the upper part of the circuit diagram of the photovoltaic power switchgear is a high-voltage switchgear facility, and is typically an auto section switch and an arrester from the power input part to the power distribution. It consists of Lightening Arrester, Power Fuse or COS, Metering Out Fit (MOF), Transformer (Electric Potential TR), and Main Control Breaker.

This basic circuit configuration area is combined with the photovoltaic control system through the main distribution line to the distribution facility.

For example, the main distribution line of the power distribution equipment already installed inside the main body casing of the photovoltaic power distribution panel has a circuit breaker for protection of low voltage indoor circuits under 600 V AC and 250 V DC for motor control panels, heating equipment, and extra equipment. A first distribution line having a case circuit breaker (MCCB); Second distribution lines with wiring breakers are also connected in parallel for computer and security equipment, lights and emergency lights.

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

In addition, the main distribution line of the photovoltaic switchgear is connected in parallel with the first input terminal of the uninterruptible automatic switching device to supply commercial power for distribution to the uninterruptible automatic switching device.

The uninterruptible automatic switching device 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 link time of less than 0.05 seconds, and a voltage comparison value of less than 5% of a voltage difference between commercial power and storage power. An automatic switching circuit unit configured to electronically configure the switching mechanism to supply any one of commercial power and storage power to the second distribution line under automatic switching conditions including; A power failure detection circuit arranged to check commercial power at a first input side, and outputting a first result by comparing the checked commercial power value with an automatic switching condition; A power storage amount sensing circuit arranged to check the power storage at the second input end, and outputting a second result value by comparing a supply amount of power storage 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 changeover switch as a communication signal or received from the second communication module and the charge completion signal of the second battery is input to the automatic switching circuit unit; It consists of 1 communication module.

As described above, according to the present invention, there is an advantage of providing a photovoltaic power switchgear that can be operated very economically by reducing power consumption of the entire load associated with the switchgear using natural energy such as wind power and solar light.

In addition, the photovoltaic power distribution panel according to the present invention combines the power supply unit and the uninterruptible automatic switching device to the essential load such as a motor control panel, heating equipment, extra equipment, 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 the power energy consumption can be reduced by the power consumption of the required load even in the case of non-interruption.

On the other hand, the present invention is capable of real-time monitoring and action regardless of the power state of the power distribution equipment or the operation state of the equipment regardless of the place, excellent security, and can replace its function in case of failure of the existing power control device. In addition, it provides an effect that can prevent safety accidents during repair work of the distribution system.

Claims (1)

In general, the main power source 10 receives commercial power from the commercial power supply unit 12, the load 40 receiving power from the main power source 10 to perform various functions, and the solar energy converting solar energy into electric energy. The battery 32, the preliminary power source 30 for storing the power generated by the solar cell 32, and the main power source 10 when the failure occurs because the power is not supplied from the commercial power supply 12 Switchgear using solar light, characterized in that it comprises a switching device for switching to supply the pre-power (30) to the load (40).

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