KR101291287B1 - Equipped with a spare battery for the maintenance of UPS Systems - Google Patents

Abstract

The UPS maintenance system with a spare battery according to the present invention can monitor UPS in real time, notify the remote administrator regardless of time and place, and receive and process the command, and individual UPS In the event of a fault in the battery, it is possible to replace it with a spare battery immediately, thereby promoting efficient and stable operation of the UPS.

Description

{Equipped with a spare battery for the maintenance of UPS Systems}

The present invention relates to an uninterruptible power supply, commonly referred to as a UPS (Uninterruptible Power Supply), and more particularly, to perform individual real-time remote monitoring of the battery of the uninterruptible power supply and to automatically monitor and related parties when a problem occurs. It relates to a YouTube maintenance system with a spare battery to notify the user and take immediate action on its own.

In general, UPS converts the DC power stored in the battery into an AC power through an inverter and then loads the load in the event of a power outage, instantaneous power failure or voltage fluctuation. As a power supply device for supplying AC power, the importance of increasing the use range is gradually increasing by using the function of maintaining the continuity and stability of the load side operation.

In the meantime, the maintenance method for the UPS has been mainly performed by a manager, such as the "battery monitoring device of an uninterruptible power supply" of the Patent Publication No. 2002-0076919, but depends on some monitoring device connected by wire or wired. This method, which aims to remotely monitor current and temperature, was limited in monitoring each battery, a key element of the uninterruptible power supply, and taking immediate first aid in the event of a problem.

As an alternative to this, there is a method of providing a spare UPS, but there is a realistic problem that is avoided unless it is unavoidable due to an increase in installation cost and maintenance cost.

Therefore, in recent years, a method of monitoring the individual batteries constituting the storage battery and replacing only the individual batteries in case of a problem has been sought continuously. The main causes of deterioration leading to battery deterioration are grid corrosion, electrolyte reduction, formation of a passivation layer between grid and active material, weakening of self-adhesion of active material, and generation of PbSO4 on the surface of active material. The method is to detect batteries that are out of the distribution of voltage behavior of normal batteries during charging and discharging, and calculates the voltage deviation of each battery relative to the maximum battery voltage, and then calculates the average of the calculated voltage deviations. Calculating the deviation between the average value and the voltage deviation of each battery and detecting when the calculated deviation value is above a certain voltage, counting the number of detections and diagnosing a battery failure when the predetermined number of times is reached;

The battery that causes the electrochemical reaction is changed by the non-reversible reaction generated internally as the use time increases, the typical characteristic change is the increase in internal resistance, resulting in voltage characteristics, temperature characteristics, capacity decay. In other words, if the internal resistance is accurately measured, it is possible to diagnose the battery condition such as the degree of deterioration of the battery. The method measures the current and voltage of the battery and inputs the measured current and voltage values. How to measure internal resistance,

In general, when the battery is at a low temperature, the specific gravity of the electrolyte decreases, thereby reducing power dissipation. Thus, when the temperature is high, the battery shows the maximum performance because the electrolyte evaporates and the life of the battery is drastically reduced. For this purpose, the method of measuring and monitoring the internal temperature of the battery has been proposed, focusing on maintaining the temperature of the electrolyte at a constant temperature (usually 25 degrees Celsius).

However, these methods are designed to identify the abnormal symptoms of the battery in advance, and when the battery malfunctions, it affects the overall performance of the PS. If the immediate action is not taken, the damage of the PP itself is not achieved. Of course, it will result in fatal damage to the operation of various loads connected to the output power of the UPS.

Patent Publication No. 10-2002-0076919

An object of the present invention is to solve such a problem, while performing a intensive monitoring for each battery constituting the battery unit of the PC while remotely monitoring the UPS device, and the fact that the abnormality occurs when the battery is abnormal Immediately transmit to the administrator through the wireless system, at the same time disconnect the faulty battery and connect the normal battery to ensure stable power supply and to perform periodic balancing between the individual battery and the spare battery of the moving battery unit It is to provide a YouTube maintenance system with a spare battery that enables the stable use of the battery.

UPS maintenance system with a spare battery of the present invention,

A storage battery unit including a movable storage unit and a spare battery; A data detector including a voltage measuring module, a current measuring module, a resistance measuring module, and an internal temperature measuring module for detecting and measuring voltage, current, resistance, and temperature from each battery of the battery unit; A data processing unit for receiving, calculating, and analyzing data of the data detection unit; a database storing data of the data detection unit and data processed by the data processing unit; an input unit to which basic data and command data are input; and a data processing result; A main control unit including a voice signal unit, an output to a printer, a display unit, and a first wireless communication unit for wireless communication with a smart terminal; A battery balancing unit including a battery balancing controller for controlling battery balancing based on data provided from the main controller and a battery balancing module for performing battery balancing according to a command of the main controller; When the non-disruptive transfer signal due to defective battery generation is transmitted from the main control unit to the movable battery unit, the transfer switch control unit controls an transfer switch to transfer the defective battery and the spare battery to the non-transitory unit, and the non-disruptive transfer control unit to control the transfer switch. An indisruptive cut portion; And a second wireless communication unit for transmitting and receiving data from the first wireless communication unit of the main control unit, and a smart terminal having an application unit and an input / display unit.

The non-disruptive cutting unit detects an abnormal battery among the movable batteries of the battery unit in the main controller, and the battery balancing unit ends the battery balancing between the normal battery and the spare battery except the abnormal battery among the movable batteries, and then the spare battery and the abnormal battery. By changing the battery without change, the battery is replaced without change.

The battery balancing unit is achieved by performing periodic battery balancing between the individual battery and the spare battery of the movable storage unit.

As described above, the maintenance system of the UE with the spare battery according to the present invention monitors the UE in real time, notifies the remote administrator regardless of time and place, and receives and processes the command. It is possible to replace the spare battery immediately when the failure of the individual battery of the UPS has the effect that can promote efficient and stable operation of the UPS.

1: block diagram according to an embodiment of the present invention
2 is a circuit diagram provided with a switchless switch according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are provided to those skilled in the art to fully understand the present invention, and may be modified in various forms, and the scope of the present invention is limited to the embodiments described below. no.

The UPS maintenance system having a spare battery of the present invention includes a storage battery unit (10) having a movable battery unit (11) and a spare battery (12); The voltage measuring module 21, the current measuring module 22, the resistance measuring module 23, and the internal temperature measuring module 24 for detecting and measuring voltage, current, resistance, and temperature from each battery of the battery unit 10. A data detector 20 having a); The data processing unit 31 receives the data of the data detection unit 20 and calculates and analyzes the data, and the basic data such as the specifications for the UPS, the data of the data detection unit 20 and the data processed by the data processing unit 31. A database 32 for storing, an input unit 33 for inputting basic data and command data, a display unit 351 for displaying data processing results, an audio signal unit 352 for outputting voice signals, and a printer for printing An output unit having a 353. a main control unit 30 having a display unit 35 and a first wireless communication unit 34 for wireless communication with the smart terminal 60; Battery balancing including a battery balancing controller 42 for controlling battery balancing based on the data provided from the main controller 30 and a battery balancing module 41 for performing battery balancing according to the commands of the main controller 30. Section 40; Transfer switch control unit 51 for controlling the transfer switch for switching the defective battery and the spare battery 12 in an unsuccessful manner when the non-disruptive transfer signal due to a defective battery is transmitted from the main control unit 30 to the movable battery unit 11. And an indisruptive cut-out part 50 including an indisruptive cut-out control part 52 for controlling the transfer switch control part 51; A smart terminal 60 having a second wireless communication unit 61 for transmitting and receiving data from the first wireless communication unit 34 of the main controller 30, an application unit 62, and an input / display unit 63; And a control unit.

The battery unit 10 has each of the batteries 111 to 113 connected in series and is operated in real time through the charging unit C and the discharge unit D, and the movable battery unit 11 and the movable battery unit 11. It consists of a spare battery 12 that is provided for replacement when the abnormal battery occurs in the battery of the spare battery 12 has the same capacity as each of the movable battery (111 ~ 113) and through the battery balancing process By maintaining the same or similar capacity state as the individual batteries of the movable battery unit 11, it is prepared for an unswitched transfer in an emergency situation.

The data detector 20 detects and measures the voltage, current, resistance, and internal temperature of each of the individual batteries 111 to 113 and the spare battery 12 of the movable battery unit 11. , The current measuring module 22, the resistance measuring module 23 for measuring the internal resistance of the battery, and the internal temperature measuring module 24 for measuring the internal temperature of the battery, and the measured data of each module is measured and The data is transmitted to the control unit 30, processed and analyzed, stored in the database 32, and output from the output display unit 35 in various forms.

The main controller 30 may include voltages, currents, resistances, and internals of the batteries 111 to 113 and the spare batteries 12 of the movable battery unit 11 detected by each module of the data detector 20. Data processing unit 31 receives and calculates and analyzes real-time information on temperature, basic information on the battery (manufacturer, purchase date, available time, purchase price, rating, etc.), and data processing unit 31 A database 32 for storing the stored data, an input unit 33 for inputting basic information and command data, a first wireless communication unit 34 for transmitting and receiving wirelessly with the smart terminal 60, and the data processing unit 31 Various analysis and calculation data processed in the above) and the basic information are output to the display unit 351, the audio signal generator 352, and the printer 353.

In particular, it is preferable that the display unit 351 shows a time series graph and a table with respect to the result value of each measurement module, and the voice signal generator 352 can output an audio signal such as an alarm signal, and the display information is displayed in a printer ( 353) is also available.

The battery balancing unit 40 is connected to each battery of the battery unit 10 in parallel to receive the detection data from the battery balancing module 41 and the main control unit 30 for balancing the battery battery balancing module It is composed of a battery balancing control unit 42 for controlling (41). The battery balancing module 41 is composed of a switch device and a charge and discharge device.

In general, in the case of using a single battery by connecting a plurality of batteries, a voltage difference occurs between the batteries due to chemical differences, physical properties, and aging differences of each battery. As time goes by, a battery with a low voltage becomes even lower, and a battery may be damaged due to a single battery. Therefore, each battery may be charged through a battery balancing process. Minimize the voltage difference.

The battery balancing unit 40 performs such a process, by performing balancing between the respective batteries in the movable battery unit 11 and performing a total balancing of the battery unit 10 including the spare battery 12. Voltage uniformity of each of the batteries 111 to 113 of 11 may occur, and an uninterrupted disassembly of the spare battery 12 may be performed through balancing the entire storage unit 10 including the spare battery 12. It is possible to prevent problems due to insufficient charging and overcharging between batteries due to possible voltage and current differences. The battery balancing cycle of the movable battery unit 11 itself and the battery unit 10 is set in the battery balancing controller 42 according to the usage environment and purpose of the UE, and the executed battery balancing data is stored in the database of the main controller 30 ( 32) is stored as voltage information of each battery.

When the voltage, current, resistance, and battery internal temperature data detected by the data detector 20 appear below or above a predetermined standard, and it is determined that an uninterrupted switching is necessary by a set program, the main controller 30 excludes a defective battery. Check the voltage difference between the normal battery and the spare battery 12 to determine whether or not the battery balancing operation, and if the operation is omitted or completed, the non-disruptive switch control unit 51 through the non-disruptive switch control unit 52 By giving a replacement command, the semiconductor type disconnection switch is operated to replace the battery through the disconnection between the abnormal battery and the spare battery 12.

When an abnormality occurs in the battery of the movable battery unit 11 and the battery balancing for the non-disruptive cutting is performed, it is preferable to set the program to be executed in preference to the self-balancing of the movable battery unit 11.

Figure 2 is a simple embodiment of the stepless connection circuit by the stepless transfer switch as an example, the movable battery is normally operated in series with a semiconductor type stepless switch SW1, SW2, SW3, SW4, SW5, SW6 such as SCR If an abnormality occurs in the B2 112, SW3 and SW4 are undisrupted to SW9 and SW10, respectively, so that the B2 112 and the spare battery 12 are replaced indisruptively to maintain the normal operation of the UPS. Such a seamless cutting operation is transmitted to the display unit 351 of the output display unit 35, the voice signal generator 352, and the smartphone terminal 60 by a program set in advance in the main controller 30 in advance. It is also possible to execute manually in the automatic execution mode by the reference value setting and the administrator execution mode by the judgment of the administrator.

In the above embodiment, but limited to the battery 111 ~ 113 and the spare battery 12 of the movable storage unit 11 in order to help the understanding of the present invention by applying various techniques and software techniques in the circuit configuration It may also be applicable to a larger number of moving batteries and spare batteries.

The smart terminal 60 receives the battery information of each battery unit 10 calculated, analyzed and transmitted by the main controller 30 through the second wireless communication unit through various applications embedded in the application unit 62. And an input / display section 63 for displaying and inputting necessary commands.

UPS device is a power supply device for maintaining an uninterrupted state, and it is desirable to be under the supervision of an administrator regardless of time and place when an emergency action situation occurs. By enabling control, more stable YouTube management can be achieved.

The maintenance system of the invention of the present invention will be said to be an industrially applicable invention because it is possible to repeatedly build the same system in a general site of use of the UE.

C: charging part D: discharging part
10: battery unit 11: movable battery unit
111 ~ 113: Movable battery 12: Spare battery
20: data detector 21: voltage measurement module
22: current measurement module 23: resistance measurement module
24: internal temperature measurement module 30: main control unit
31: data processing unit 32: database
33: input unit 34: first wireless communication unit
35: output / display section 351: display section
352: voice signal generator 353: printer
40: battery balancing unit 41: battery balancing module
42: battery balancing control unit 50: non-disruptive cutting unit
51: stepless switch control unit 52: stepless switch control unit
60: smart terminal 61: the second wireless communication unit
62: application unit 63: input and display unit

Claims (3)

In the maintenance system of the UPS with a spare battery,
The maintenance system of the UPS equipped with the spare battery,
A storage battery unit 10 including a movable battery unit 11 and a spare battery 12;
The voltage measuring module 21, the current measuring module 22, the resistance measuring module 23, and the internal temperature measuring module 24 for detecting and measuring voltage, current, resistance, and temperature from each battery of the battery unit 10. A data detector 20 having a);
A data processing unit 31 for receiving, calculating, and analyzing data of the data detecting unit 20; a database 32 storing data of the data detecting unit 20 and data processed by the data processing unit 31; Input unit 33 for inputting basic data and command data, and outputting data processing results to the display unit 351, voice signal unit 352, and printer 353. Display unit 35 and smart terminal 60 A main control unit (30) having a first wireless communication unit (34) communicating with the wireless unit;
Battery balancing includes a battery balancing controller 42 for controlling battery balancing based on the data provided from the main controller 30 and a battery balancing module 41 for performing battery balancing according to the commands of the main controller 30. Section 40;
Transfer switch control unit 51 for controlling the transfer switch for switching the defective battery and the spare battery 12 in an unsuccessful manner when the non-disruptive transfer signal due to a defective battery is transmitted from the main control unit 30 to the movable battery unit 11. And an indisruptive cut-out part 50 having an indisruptive cut-out control part 52 for controlling it;
And a smart terminal 60 having a second wireless communication unit 61 for transmitting and receiving data from the first wireless communication unit 34 of the main controller 30, an application unit 62, and an input / display unit 63. ,
The uninterruptible cutting unit 50 detects an abnormal battery among the movable batteries 111 to 113 of the battery unit 10 in the main controller 30, and then, in the battery balancing unit 40, removes the abnormal battery among the movable batteries. After the battery balancing between the spare battery and the spare battery 12 is finished, the battery is replaced by a non-disruptive replacement of the spare battery 12 and the abnormal battery.
The battery balancing unit 40 performs periodic battery balancing between the individual battery of the movable battery unit 11 and the spare battery 12, and prior to battery balancing between the normal battery and the spare battery 12 in a no-disruptive switching. The maintenance system of the UPS equipped with a spare battery, characterized in that.

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