KR-20260063566-A - APPARATUS FOR CONTROLLING UNINTEREUPTIBLE POWER SUPPLY USING LIQUID IMMERSION COOLING TECCHNOLIGY AND METHOD THEREOF

KR20260063566AKR 20260063566 AKR20260063566 AKR 20260063566AKR-20260063566-A

Abstract

The present invention relates to an apparatus and method for controlling an uninterruptible power supply using liquid immersion cooling technology, comprising: a temperature data collection unit for collecting real-time temperature data of a cooling system provided inside the uninterruptible power supply; a temperature data comparison and analysis unit for comparing and analyzing the collected real-time temperature data with a preset target temperature value; a cooling fluid flow control unit for controlling the flow of a cooling fluid circulating around a power converter and a battery module provided inside the uninterruptible power supply according to the comparison and analysis results; and a thermoelectric material operation control unit for controlling the current flow to a solid thermoelectric material coupled to the cooling system according to the comparison and analysis results.

Inventors

장중언
김태오

Assignees

주식회사 코리아비티에스

Dates

Publication Date: 20260507
Application Date: 20241030

Claims (10)

A temperature data collection unit that collects real-time temperature data of a cooling system provided inside an uninterruptible power supply; A temperature data comparison and analysis unit that compares and analyzes collected real-time temperature data with preset target temperature values; A cooling fluid flow control unit that controls the flow of cooling fluid circulating around a power converter and a battery module provided inside an uninterruptible power supply based on comparative analysis results; and A thermoelectric material operation control unit that controls the current flow to a solid thermoelectric material coupled to a cooling system based on comparative analysis results; A device for controlling an uninterruptible power supply using liquid immersion cooling technology characterized by including
In paragraph 1, A device for controlling an uninterruptible power supply using liquid immersion cooling technology, characterized in that the temperature data collection unit collects real-time temperature data through at least one temperature sensor provided in the cooling system, the power converter and battery module utilize liquid immersion cooling technology in which a cooling fluid is circulated from the surroundings through a pump, and the cooling system incorporates a solid thermoelectric material that absorbs and releases heat according to temperature changes.
In paragraph 1, A device for controlling an uninterruptible power supply using liquid immersion cooling technology, characterized in that the above temperature data comparison analysis unit analyzes a cooling control method by comparing collected real-time temperature data with at least one of a preset maximum target temperature value or a preset minimum target temperature value.
In paragraph 1, A device for controlling an uninterruptible power supply using liquid immersion cooling technology, characterized in that the above-mentioned cooling fluid flow control unit controls the flow of the cooling fluid quickly by adjusting the speed of the pump circulating the cooling fluid to a first speed faster than the preset reference speed when the collected real-time temperature data is greater than or equal to the preset maximum target temperature value, and controls the flow of the cooling fluid slowly by adjusting the speed of the pump circulating the cooling fluid to a second speed slower than the preset reference speed when the collected real-time temperature data is less than or equal to the preset maximum target temperature value.
In paragraph 1, A device for controlling an uninterruptible power supply using liquid immersion cooling technology, characterized in that the thermoelectric material operation control unit controls the solid thermoelectric material to absorb heat by allowing current to flow when the collected real-time temperature data is above a preset maximum target temperature value, and controls the thermoelectric material to release heat by preventing current from flowing when the collected real-time temperature data is below a preset maximum target temperature value.
In paragraph 1, A device for controlling an uninterruptible power supply using liquid immersion cooling technology, characterized by further including a monitoring result output unit that outputs the result of monitoring real-time temperature data collected from the temperature data collection unit according to the control of cooling fluid flow and current flow of a solid thermoelectric material.
A step of collecting real-time temperature data of a cooling system provided inside an uninterruptible power supply by a temperature data collection unit; A step of comparing and analyzing real-time temperature data collected by a temperature data comparison and analysis unit with a preset target temperature value; A step of controlling the flow of cooling fluid circulating around a power converter and a battery module provided inside an uninterruptible power supply according to a comparative analysis result by a cooling fluid flow control unit; and A step of controlling the current flow in a solid thermoelectric material coupled to a cooling system according to the results of a comparative analysis by a thermoelectric material operation control unit; A method for controlling an uninterruptible power supply using liquid immersion cooling technology characterized by including
In Paragraph 7, The step of controlling the flow of cooling fluid circulating around the power converter and battery module equipped inside the uninterruptible power supply based on the results of the comparative analysis is A method for controlling an uninterruptible power supply using liquid immersion cooling technology, characterized by controlling the flow of a cooling fluid rapidly by adjusting the speed of a pump circulating the cooling fluid to a first speed faster than a preset reference speed when the collected real-time temperature data is greater than or equal to a preset maximum target temperature value, and controlling the flow of a cooling fluid slowly by adjusting the speed of a pump circulating the cooling fluid to a second speed slower than a preset reference speed when the collected real-time temperature data is less than or equal to a preset maximum target temperature value.
In Paragraph 7, The step of controlling the current flow in a solid thermoelectric material coupled to a cooling system based on the results of comparative analysis is, A method for controlling an uninterruptible power supply using liquid immersion cooling technology, characterized by controlling the solid thermoelectric material to absorb heat by allowing current to flow when the collected real-time temperature data is above a preset maximum target temperature value, and controlling the thermoelectric material to release heat by preventing current from flowing when the collected real-time temperature data is below a preset maximum target temperature value.
In Paragraph 7, After the step of controlling the current flow in the solid thermoelectric material coupled to the cooling system based on the results of the comparative analysis, A method for controlling an uninterruptible power supply using liquid immersion cooling technology, characterized by outputting the result of monitoring real-time temperature data collected from the temperature data collection unit according to the control of the cooling fluid flow and the current flow of the solid thermoelectric material.

Description

Apparatus for controlling uninterruptible power supply using liquid immersion cooling technology and method thereof The present invention relates to an apparatus and method for controlling an uninterruptible power supply using liquid immersion cooling technology, and more specifically, to an apparatus and method for controlling an uninterruptible power supply using liquid immersion cooling technology, which collects real-time temperature data of a cooling system provided inside the uninterruptible power supply and controls the flow of a cooling fluid circulating around a power converter and a battery module and the current flow to a solid thermoelectric material coupled to the cooling system according to the results of comparing and analyzing preset target temperature values. Recently, rechargeable secondary batteries are being widely used as energy sources or auxiliary power devices for wireless mobile devices. Furthermore, secondary batteries are attracting attention as power sources for various fields and products, including electric vehicles (EVs), hybrid electric vehicles (HEVs), and plug-in hybrid electric vehicles (Plug-In HEVs)—which are being proposed as solutions to address air pollution caused by conventional gasoline and diesel vehicles using fossil fuels—as well as for industrial and household equipment such as uninterruptible power supplies (UPS), idle reduction systems, and energy storage devices. Generally, an uninterruptible power supply is a device that supplies power to server devices or communication equipment that require constant power supply. Typically, a secondary battery is installed in such an uninterruptible power supply, and the secondary battery is charged by the power supplied during normal operation. In the event of a power outage or emergency, the system connected to the uninterruptible power supply operates stably using the power charged in the secondary battery. However, conventional uninterruptible power supply devices include a rectifier that converts commercial power into DC, a battery module, and a control unit, and the control unit is structured to include a relay that measures the voltage of the battery module and closes the charging line supplying charging power to the battery module when the voltage reaches an upper limit. In addition, even if the charging of the battery module is cut off by the aforementioned relay, the discharge line that supplies power stored in the battery module to the uninterruptible power supply in the event of a power outage in the commercial power line must remain active. To this end, a discharge diode connected with forward bias in the discharge direction is installed on the discharge line to configure the discharge line of the battery module in parallel with the relay of the charging control unit. The control unit of such a system includes a circuit of a Battery Management System (BMS) capable of sensing and controlling the current, voltage, and temperature of the unit cell and the battery system. Therefore, in the event of problems such as damage to the unit cell or overheating caused by overcharging or over-discharging, the current is cut off to protect the unit cell and ensure safety. However, in the case of such conventional uninterruptible power supplies, as mentioned above, a diode is installed in parallel with the current cutoff device to utilize the charged power of the secondary battery during a power outage or emergency. Consequently, even if the current is cut off based on the diagnosis of the BMS, the current discharging from the secondary battery cannot be blocked, leading to a problem where the secondary battery is completely discharged and its lifespan is reduced. In this regard, Korean Published Patent No. 2003-0006693 discloses an "uninterruptible power supply that is easy to install in a vehicle." FIG. 1 is a diagram illustrating the configuration of a device for controlling an uninterruptible power supply using liquid immersion cooling technology according to the present invention. FIGS. 2 and FIGS. 3 are flowcharts for explaining the sequence of a method for controlling an uninterruptible power supply using liquid immersion cooling technology according to the present invention. The present invention is capable of various modifications and may have various embodiments, and specific embodiments are illustrated in the drawings and described in detail. However, this is not intended to limit the invention to specific embodiments, and it should be understood that it includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the invention. Similar reference numerals have been used for similar components in the description of each figure. When it is stated that one component is "connected" or "connected" to another component, it should be understood that while it may be directly connected or connected to that other component, there may also be other components in between. On the other h