KR100685709B1 - A smart cabinet panel using solid state switches - Google Patents

Abstract

A smart cabinet panel using solid state switches is provided to have a function of transforming an AC to a DC for use of a DC device and supply AC power of a specific frequency. In a smart cabinet panel(1000) using solid state switches, a sub switch unit has a plurality of semiconductor leakage breakers breaking a current flowing on a specific line according to a predetermined condition. A main switch unit has a semiconductor leakage breaker receiving AC power from an electricity supplier, and supplying the AC power to the sub switch unit and breaks the supply if necessary. An inverter unit receives the AC power and transforms the AC power to the set DC power for supplying the DC power set by a user to an LED light. A switch unit(600) includes a converter unit controlling a light by using the AC power of a specific frequency set by the user. The electricity supplier and the user communicate with each other through a first interface unit. A second interface unit is connected to an Internet through external host computer/home servers, and includes an XML(Extensible Markup Language) type remote control module for controlling the panel(1000) remotely. An interface unit(500) includes a PLC(Power Line Communication) control module having a communication module for communicating with the PLC. A CPU(Central Processing Unit)(100) controls inside of the panel(1000) wholly. A ROM(Read Only Memory)(300) stores basic data and an operating program needed for the panel(1000). A RAM(Random Access Memory)(400) stores the data temporarily while the CPU(100) processes the data. A display unit(200) outputs an operating state of the panel(1000) and various information. An input unit(800) sets an operation of the panel(1000). A wireless transceiver(900) communicates with the outside wirelessly.

Description

Smart cabinet panel using solid state switches

1 is a configuration of a smart cabinet panel system using a semiconductor switch according to the present invention.

FIG. 2 is a detailed block diagram of the switch unit of FIG. 1. FIG.

3 is a detailed block diagram of an interface unit of FIG. 1.

4 is a block diagram of a preferred embodiment of FIG.

<Description of Symbols for Major Parts of Drawings>

100: CPU 200: display device

300: Rom 400: Ram

500: interface unit 520: first interface unit

540: second interface unit 542: XML type remote control module

560: PLC control module

570: host computer / home server 580: PLC

600: switch unit 620: main switch unit

640: converter unit 660: sub-switch unit

680: inverter unit 690: power control unit

710: AC load (commercial frequency) 720: DC load

730: AC load (arbitrary frequency) 800: input means

900: wireless transceiver 1000: smart cabinet panel using a semiconductor switch

The prior art in this field is Korean Registered Patent No. 10-0308538 (registered Aug. 29, 2001) of Jungwon Electric Co., Ltd. ": distribution panel remote monitoring control system".

Another prior art in this field is Korean Patent Application Publication No. 10-2005-36325 (published on April 20, 2005) by Kim Soon et al., "A circuit breaker and a control method thereof for remote control."

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a panel for a house used in a general house (apartment, a general house) and a shopping mall. In particular, a smart cabinet panel using a semiconductor switch using a circuit breaker having a home server function and constructed based on an insulated gate bipolar transistor is used. It is about.

Conventional residential panels, including the technologies mentioned above, simply have overcurrent shutdown, short circuit shutdown, and load branching functions, which could not inform the user of pre-alarm alarms and information on short circuits. There was a problem that can not motivate to inspire power-saving awareness because there is no function. As such, existing residential panels have not been able to recognize the overload in distributing the total electricity of each home or small business and provide little information on power savings.

Of course, the '538 is exceptionally liquid crystal, but still has other problems.

Today, with the development of information and communication technology, ubiquitous residential life is being changed in all aspects of life, and residential panels are becoming more and more intelligent, multimedia, and networked. Or for small businesses, home automation based on home networks is becoming an essential technology element.

As a result, these systems improve the problems of life and breaking performance, which are disadvantages of the electromechanical drive circuit breaker attached to the existing wall, and problems such as noise generation and malfunction due to the opening and closing of mechanical contacts. There is a growing need to develop technologies for panels with new concepts that will bring dramatic improvements in volume and weight reduction.

In addition, conventionally, there was no panel having a function of converting alternating current into direct current to enable the use of direct current equipment. There was no panel that provided interface technology for interactive communication between suppliers and consumers. In addition, a panel capable of managing remote control and modules of XML (Extensible Markup Language) method and a function of fusing communication modules such as PLC (Power Line Communication) is required, but the technology for this has not been disclosed. Therefore, these technologies correspond to the key element technologies that correspond to the power industry-based technologies in the country, and there is an urgent need for technological development.

The present invention has a home server function to solve the above-mentioned problems of the prior art, and at the same time provides a technology for a panel using a semiconductor, which is based on an insulated gate bipolar transistor (IGBT). For the purpose of

Other objects and advantages of the present invention will become more apparent from the following detailed description of the invention and the accompanying drawings.

Prior to the description of the configuration of the present invention, an IGBT (Instlated-Gate Bipolar Transistor) used as a switch element in the present invention will be briefly described. As is well known, the IGBT is a power semiconductor having a high speed MOSFET and a large input impedance, and has the conductivity of a bipolar transistor. That is, the device has a low saturation voltage value. Thus, when a positive voltage is applied between the gate and the emitter, the IGBT is turned on and turned off by applying the gate voltage to zero or by applying a slight negative voltage. By using this property, the present invention uses IGBT as a switch. In addition, IGBT is a power device that enables fast on / off switching in high voltage and high current products. It is characterized by fast response speed and no noise, and is mainly used for high-capacity inverters for welding equipment.

In addition, the insulated gate bipolar transistor (IGBT) is a power device that enables fast on / off switching in high voltage and high current products, and has a fast response time and no noise, which is mainly used for a large-capacity inverter for welding equipment. Therefore, the present invention is characterized by achieving the above object by employing an insulated gate bipolar transistor having such good characteristics.

The semiconductor earth leakage breaker using the IGBT has already been filed by the applicants of the present invention to the Republic of Korea Patent Application No. 10-2005-75626 (August 18, 2005). The smart cabinet panel using the semiconductor switch of the present invention is based on the semiconductor earth leakage breaker filed by the patent.

I. Smart cabinet panel system using semiconductor switch

The entire system 1000 of the panel according to the present invention is installed in a home, office or small business (hereinafter referred to as "home or small business") as shown in Figure 1 to provide the user with an AC power source and DC power of any frequency A panel for supplying at the same time, the configuration is a sub-switch unit 660 consisting of a plurality of semiconductor earth leakage circuit breakers for blocking the current flowing in a specific line in accordance with a predetermined condition, the AC power supply from the electricity supplier The main switch unit 620 comprising a semiconductor earth leakage circuit breaker for supplying AC power to the position unit and blocking it if necessary, and supplying the DC power set by the user to supply DC power such as LED lighting and the like. Inverter unit 680 for receiving power and converting the set DC power, and a specific frequency set by the user A switch unit 600 that includes a converter section (640) which enables the illumination control of the AC power supply; Connected to the Internet through the first interface unit 520, the external host computer / home server 570 for the electricity supplier and the user to communicate with each other interactively, the XML type remote to control the panel from the outside An interface unit 500 including a second interface unit 540 having a control module 542 and a PLC control module 560 having a communication module for communicating with the PLC 580; A CPU (100) for controlling the inside of the panel as a whole; A ROM 300 storing basic data and an operating program required by the panel; A RAM 400 for temporarily storing data by the CPU during data processing; A display device 200 for outputting an operation state and various information of the panel; Input means (800) for operation setting of the panel; And a wireless transmission / reception unit 900 for wireless communication with the outside.

At this time, the main switch unit and the sub-switch unit includes an earth leakage circuit breaker (ELCB) filed as' 626.

In the present invention, it is preferable that the semiconductor circuit breaker uses a semiconductor switching device including an IGBT. And the panel of the present invention is preferably further provided with a rack that makes it easy to modularize the panel.

In the present invention, it is preferable that a telephone is further provided for talking with the electricity supplier if necessary.

In the present invention, it is preferable to further include a heat absorbing portion for absorbing heat inside the panel to maintain the internal temperature below a specific value.

According to the present invention, an emergency power supply unit for supplying power only to a load line set in advance in case of power failure; And it is preferable to further have a constant voltage constant frequency (CVCF) for supplying a good quality power.

In the present invention, it is preferable to further include an alarm generating unit for sounding an alarm in an emergency.

In the present invention, it is preferable that the user and the supplier communicate through the wired or wireless telephone through the first interface unit.

In the present invention, the PLC control module uses an orthogonal frequency division multiplexing (OFDM) modulation scheme and a priority random access (PRA), content-free access (CFA), and segment bursting technology for quality of service (QoS) management. It uses 56-bit Data Encryption Standard (DES) link encryption technology and FEC (Forward error correction) technology for encryption and error correction, RS-232 and Ethernet for interface, and control radius. It is characterized by being within 400 meters.

In the present invention, the wireless transmission and reception unit has a frequency band of 430MHz band, transmit power is 10mW or more, reception sensitivity is -120 decibels, adopts FM modulation method, uses PLL (Phase Locked Loop) oscillation, The noise ratio is 40 days or less, the data rate is 19200bps, the operating radius is within 500 meters, and the supply voltage is characterized by more than 2.7 volts.

In the present invention, the communication method of the PLC is characterized in that one of X10, CEBus, LONWORKS, Z256, IZ256, MZ256.

In the present invention, the XML-based remote control module 542 is characterized in that to give a command for the opening and closing operation of the panel through a variety of terminals that can be connected to the Internet.

In the present invention, the XML type remote control module 542 is characterized in that one or more of the power line communication modem, CDMA communication modem GSM (Global System Mobile communication) GSM modem.

In particular, one of the great advantages of the present invention is that it has an inverter unit and a converter unit as shown in FIG. The inverter unit converts AC into DC and supplies DC power. In particular, the inverter unit has a great meaning in that the user inputs a desired DC voltage and a current value to supply the corresponding DC power accordingly.

In addition, it has the function to convert existing commercial frequency AC power supply to AC power of specific frequency that user wants. Thus, for example, home appliances that have been used abroad and returned home can be used as they were, because the frequencies have been different, and they have not been used up and have been disposed of. In particular, it may be useful in small laboratories requiring various frequencies.

In addition, in the present invention, when a problem caused by electricity such as power failure or an electric fire occurs, a wired / wireless telephone is installed on the panel in order to contact the electricity supplier (eg KEPCO) quickly.

And now, even in homes or small businesses, in order to reduce the inconvenience of finding a flash or a candle in case of a sudden power outage, there is an uninterruptible power supply that can supply a minimum amount of electricity for a certain period of time. It is designed to operate devices that should not be stopped such as alarms, sense detectors, anti-theft detectors and surveillance cameras.

Figure 1 shows the system configuration of the present invention, Figure 4 is a specific embodiment thereof. 2 and 3 are detailed views of the switch unit and the interface unit, respectively.

Specifications of the earth leakage breaker used in the embodiment of Figure 4 can be implemented as shown in Table 1. In FIG. 4, a power control unit (PCU) 690 is connected to each sub switch unit. PCU's function is to control the output voltage and current of each switch part. The reason why the PCU is arranged for each sub-switch part is that the output value of each sub-switch part may be different. For example, when the output voltage and the current of the sub-switch part 662 are set to the AC voltage 220V and the AC current 30A by the input means 800, these values are controlled by the PCU 690. In the same manner, when the DC output voltage of the sub-switch part 664 is set to DC 5V and DC 0.5A, these values are controlled by the corresponding PCU 690. In this case, 680 represents an inverter and is indicated by a blue line to indicate that the DC power output through the inverter 680 is supplied to the DC load 720. This is to schematically show that the blue line supplies the DC power. The line marked in red indicates that the AC power flows at the commercial frequency. In the same way, the 640 is a converter that outputs AC power at a specific frequency. Therefore, green lines are used to indicate that AC power is output at a specific frequency. In addition, the load 730 indicates that the load requires an AC power source of a specific frequency.

Rated voltage / current Main: 220V, 30A Sub: 220V, 15A Rated Sensitivity Current 30 mA Rated non-operating current 15 mA Operating time Within 0.03 sec Operation type Current operation type Etc Overload, short circuit protection, electric shock protection, shock wave type

In general, when a short circuit current is interrupted by using a power semiconductor, when the power supply capacity is large and a large fault current is assumed, even if the load capacity (KVA) is small, the maximum allowable surge current of the switching element should be considered. As a result, an uneconomical problem of connecting a large capacity of power semiconductors in parallel has arisen, which is a fundamental cause of being limited in implementing power semiconductor circuit breakers compared to conventional mechanical circuit breakers.

However, in the present invention, the current flowing through the power semiconductor such as the IGBT is forcibly cut off at the same time, and at a high speed, the accident current can be prevented in advance and the accident prediction current can be made very large. It was solved. In this invention, a forced interruption circuit of an alternating current is set so that an overcurrent increase in the event of an accident is cut off by a detector set value. For this purpose, IC logic trigger pulse circuit is adopted as the gate control circuit, and overcurrent detection is implemented by using fast response parts (for example, Reed switch).

Table 2 shows the specifications of the PLC control module.

Modulation Scheme OFDM Modulation Quality of Service (QoS) Management Priority random access Contention-free access Segment Bursting Encryption and Error Correction 56-bit DES Link Encryption Forward Error Correction (FEC) support interface RS-232, Ethernet Coverage Up to 400 meters LED PWR / ACT / STA / LNK Application Home Networking Voice over IP (VoIP) Applications

And when the specification of the RF module of the wireless transceiver 900 is shown in Table 3.

RF frequency 430 MHz band Transmit power ≥ 10 mW Reception -120 dB Modulation FM Oscillation PLL S / N 40dB≤ Data rate 19200 bps Operating ≤500m Supply voltage 2.7V or more

As such, the present invention may be variously modified and may take various forms, and only the specific embodiments thereof are described in the detailed description of the present invention. It is to be understood, however, that the present invention is not limited to the specific forms mentioned in the detailed description of the invention, but rather includes all modifications, equivalents, and substitutions within the spirit and scope of the invention as defined by the appended claims. It should be understood to do.

The panel of the present invention has a function of converting AC into direct current to enable the use of a DC device, and can also supply AC power of a specific frequency.

In addition, it provides an interface technology that enables interactive communication between suppliers and consumers, enables XML-based remote control and module management, and has the function of fusing communication modules such as PLCs.

From the outside, the panel can be remotely operated and monitored using a mobile phone.

When the breaker is opened and closed, the noise is reduced and it is possible to cut off quickly.

The technology of the present invention can be usefully applied to home or small business automation by integrating with home networking technology.

The panel of the present invention is partially equipped with a home server function. Therefore, it is possible to remotely monitor and control various home or small business devices that can be controlled by a PLC from the outside.

Since the technology of the present invention corresponds to the power industry-based technology in the country, it is greatly useful for power industry development.

Claims (13)

In a smart cabinet panel using a semiconductor switch installed in a home, office or small business (hereinafter referred to as "home or small business") to supply an AC power and a DC power of arbitrary frequency at the same time, A sub-switch part comprising a plurality of semiconductor earth leakage circuit breakers for blocking current flowing in a specific line according to a predetermined condition; A main switch part comprising a semiconductor earth leakage circuit breaker for supplying AC power to the sub-switch part and blocking it if necessary, by receiving AC power from an electric supplier; An inverter unit for supplying a DC power set by a user and receiving AC power from one switch of the sub-switch part for supplying DC power such as an LED light, and converting the DC power into a set DC power; A switch unit having a converter unit to enable lighting control with a specific high frequency AC power set by a user; A first interface unit for interactively communicating with the electricity supplier and the user, A second interface unit connected to the Internet through an external host computer / home server and equipped with an XML (Extensible Markup Language) remote control module to remotely control the panel from outside; An interface unit including a PLC control module having a communication module for communicating with a power line communication (PLC); A CPU for totally controlling the inside of the panel; A ROM storing basic data and an operating program required by the panel; A RAM for temporarily storing data by the CPU during data processing; A display device for outputting an operation state of the panel and various kinds of information; Input means for setting an operation of the panel; And Smart cabinet panel using a semiconductor switch, characterized in that it comprises a wireless transmitting and receiving unit for wireless communication with the outside. The smart cabinet panel according to claim 1, wherein the semiconductor earth leakage breaker uses a semiconductor switching device including an Insulated Gate Bipolar Transistor (IGBT). The smart cabinet panel according to claim 1, further comprising a rack that makes the panel modular and easy to receive. The smart cabinet panel using a semiconductor switch according to claim 1, further comprising a telephone for making a call with an electricity supplier if necessary. The smart cabinet panel according to claim 1, further comprising a heat absorbing portion for absorbing heat inside the panel to maintain an internal temperature below a specific value. According to claim 1, Emergency power supply unit for supplying power only to a predetermined load line in the event of power failure; And A smart cabinet panel using a semiconductor switch, characterized by further comprising a constant voltage constant frequency power supply (CVCF) for supplying high quality power. The smart cabinet panel using a semiconductor switch according to claim 1, further comprising an alarm generator for sounding an alarm in an emergency. The smart cabinet panel according to claim 1, wherein a user and a supplier communicate with each other via a wired or wireless telephone through the first interface unit. The method of claim 1, wherein the PLC control module uses an orthogonal frequency division multiplexing (OFDM) modulation scheme and uses a PRA (Priority Random Access) and a CFA (Quality of Service, QoS) to manage the quality of service (QoS). It uses content-free access and segment bursting technology, 56-bit Data Encryption Standard (DES) link encryption technology and Forward error correction (FEC) technology for encryption and error correction, and RS-232 interface for interface. Smart cabinet panel using a semiconductor switch, characterized in that the Ethernet (Ethernet), the control radius is within 400 meters. The frequency transmitting and receiving unit of claim 1, wherein the frequency band is 430MHz band, the transmission power is 10mW or more, the reception sensitivity is -120 decibels, adopts the FM modulation method, phase locked loop (PLL) oscillation The signal-to-noise ratio is less than 40 days, the data rate is 19200bps, the operating radius is within 500 meters, the supply voltage is 2.7 volts or more, smart cabinet panel using a semiconductor switch. The method of claim 1, wherein the communication method of the PLC is X10, CEBus, LONWORKS, Z256, IZ256, MZ256, characterized in that the smart cabinet panel using a semiconductor switch. The smart cabinet panel according to claim 1, wherein the XML remote control module is configured to issue a command for opening and closing the panel through various terminals capable of accessing the Internet. The smart cabinet panel according to claim 12, wherein the XML remote control module includes at least one of a power line communication modem, a CDMA communication modem, and a GSM (Global System Mobile communication) modem. .

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