CN-121984205-A - Uninterruptible power supply device for redundancy backup and temperature control method thereof

CN121984205ACN 121984205 ACN121984205 ACN 121984205ACN-121984205-A

Abstract

The invention relates to the technical field of power electronics, in particular to a redundant backup uninterruptible power supply device and a temperature control method thereof, the device comprises a first uninterrupted power supply device body and a second uninterrupted power supply device body which are arranged in parallel and connected through a bus-bar switch, wherein a rectifier, a storage battery, an inverter and a control module are arranged in each body, and a static switch is arranged on the front face of each body. The first uninterrupted power supply device body is provided with a refrigerating mechanism integrating a semiconductor refrigerating sheet, a guiding radiating box and an exhaust fan, and is connected to the second uninterrupted power supply device body through a communicating guiding mechanism and a cold air guiding mechanism. The top of each body is provided with a temperature detection mechanism, and the top of the second uninterruptible power supply device body is provided with a controller. According to the invention, the power supply continuity is ensured through the switching of the double redundancy and the bus-tie switch, the real-time monitoring and the collaborative active heat dissipation of the internal temperatures of the two bodies are realized by utilizing the semiconductor refrigeration and the controllable air duct, the power supply reliability of the system is improved, and the heat dissipation performance is optimized.

Inventors

YANG JIAXING
DONG CHENXI
WEI WEI
XU RUI
ZHANG WENBO
ZHU XI

Assignees

华能阜新风力发电有限责任公司

Dates

Publication Date: 20260505
Application Date: 20260130

Claims (10)

1. An uninterruptible power supply device for redundancy backup comprises a first uninterruptible power supply device body (1) and a second uninterruptible power supply device body (2), a rectifier, a storage battery, an inverter, a static switch and a control module, and is characterized in that, The rectifier, the storage battery, the inverter and the control module are respectively arranged in the first uninterrupted power supply device body (1) and the second uninterrupted power supply device body (2), and the static switch is arranged on the front surfaces of the first uninterrupted power supply device body (1) and the second uninterrupted power supply device body (2); the inner sides of the front bottoms of the first uninterrupted power supply device body (1) and the second uninterrupted power supply device body (2) are respectively provided with a bus-tie switch (3); A cooling groove (4) is formed in the left side of the inside of the first uninterruptible power supply device body (1), two mounting frames (5) are fixedly connected in the cooling groove (4), and refrigerating mechanisms (6) for cooling the first uninterruptible power supply device body (1) and the second uninterruptible power supply device body (2) are arranged on the inner sides of the two mounting frames (5); The refrigerating mechanism (6) comprises two semiconductor refrigerating sheets (601), a guiding radiating box (602) and an exhaust fan (604), wherein the two semiconductor refrigerating sheets (601) are arranged on the inner side of the installation frame (5), the guiding radiating box (602) is inserted into the left side of the first uninterruptible power supply device body (1) and is communicated with the cooling groove (4), a guiding radiating groove (603) and an air flow groove (605) are formed in the guiding radiating box (602), and the exhaust fan (604) is fixedly installed in the guiding radiating groove (603), and a power adjusting module (7) is installed on the left side of the guiding radiating box (602); The two sides of the left side of the first uninterruptible power supply device body (1) are fixedly connected with connecting assemblies (8), and the two sides of the left side of the mounting frame (5) are provided with mounting mechanisms (9); the tops of the first uninterruptible power supply device body (1) and the second uninterruptible power supply device body (2) are respectively provided with a temperature detection mechanism (10); The top of the second uninterruptible power supply device body (2) is fixedly connected with a controller (11); a communication guide mechanism (12) is arranged between the right side inside the first uninterrupted power supply device body (1) and the left side inside the second uninterrupted power supply device body (2); The right top of the second uninterrupted power supply device body (2) is provided with a cold air guide mechanism (13).
2. The redundant backup uninterruptible power supply device according to claim 1, wherein a filter screen frame (606) is further disposed in the guiding heat dissipation box (602), and a dust and impurity blocking filter screen (607) is movably inlaid on the filter screen frame (606).
3. The uninterruptible power supply device of claim 1, wherein the connection assembly (8) comprises an insert (801) fixedly connected to the left side of the first uninterruptible power supply device body (1), a convex groove (802) is formed in the insert (801), a convex strip (803) matched with the convex groove (802) is fixedly connected to the right side of the guiding radiating box (602), and the convex strip (803) is clamped in the convex groove (802).
4. The uninterruptible power supply device for redundancy backup according to claim 1, wherein the mounting mechanism (9) comprises a mounting block (901) inserted into the left side of the mounting frame (5), the mounting block (901) is fixedly connected with the mounting frame (5) through a screw, a pressing strip (902) is fixedly connected with the inner side of the mounting block (901), a plurality of equally distributed rubber strips (903) are fixedly connected with the right side of the pressing strip (902), and the other end of the rubber strips (903) is in contact with the left side of the semiconductor refrigerating sheet (601).
5. The redundant backup uninterruptible power supply device according to claim 1, wherein the temperature detection mechanism (10) comprises a detection hole (101) formed in the top of the first uninterruptible power supply device body (1) and the second uninterruptible power supply device body (2), a temperature sensor (102) is fixedly installed in the detection hole (101), and a communication end of the temperature sensor (102) is connected with a temperature display (103).
6. The redundant backup uninterruptible power supply device according to claim 1, wherein the communication guide mechanism (12) comprises a communication hole (121) formed in the right bottom inside the first uninterruptible power supply device body (1) and the left bottom inside the second uninterruptible power supply device body (2), a heat preservation pipe (122) is communicated between the communication holes (121), and an electromagnetic valve (123) is connected in series on the heat preservation pipe (122).
7. The redundancy backup uninterruptible power supply device according to claim 1, wherein the cold air guiding mechanism (13) comprises a guiding hole (131) formed in the right side inside the second uninterruptible power supply device body (2), the guiding hole (131) is communicated with a guiding pipe (132), and the other end of the guiding pipe (132) is communicated with an air extracting pump (133).
8. The redundancy backup ups device according to claim 7, wherein the suction pump (133) is fixedly connected to the right side of the second ups device body (2) through a mounting bracket (14).
9. A redundant backup uninterruptible power supply unit according to claim 3, wherein a limit (15) is fixedly connected to the bottom of the cutting (801), and the top of the limit (15) is in contact with the bottom of the guiding heat dissipation case (602).
10. A method of controlling the temperature of a redundant backup uninterruptible power supply apparatus according to any one of claims 1 to 9, comprising: When one uninterruptible power supply device fails, the load of the failed section is transferred to the other uninterruptible power supply device body by utilizing a bus-tie switch (3); acquiring first temperature data of a first uninterruptible power supply device body (1) and second temperature data of a second uninterruptible power supply device body (2) by using a temperature detection mechanism (10); The controller (11) performs the following temperature control method when the first temperature data and/or the second temperature data exceeds a preset temperature threshold value: starting a semiconductor refrigerating sheet (601) to send cold air into the first uninterruptible power supply device body (1); Starting the exhaust fan (604) to radiate heat on the heating surface of the semiconductor refrigerating sheet (601); If the second temperature data exceeds the preset temperature threshold value, starting an air pump (133), opening an electromagnetic valve (123) to enable cold air to flow into the second uninterruptible power supply device body (2) from the first uninterruptible power supply device body (1) through a heat preservation pipe (122), and extracting the cold air from the air pump (133) through a guide pipe (132); And the power of the semiconductor refrigerating sheet (601) is dynamically adjusted according to the first temperature data and the second temperature data by using a power adjusting module (7).

Description

Uninterruptible power supply device for redundancy backup and temperature control method thereof Technical Field The invention relates to the technical field of electronic power, in particular to a redundant backup uninterruptible power supply device and a temperature control method thereof. Background An uninterruptible power supply (Uninterruptible Power Supply, UPS) serves as a power protection device whose core function is to provide a continuous, stable supply of electrical power to a load. A typical UPS system is comprised of a rectifier, battery, inverter, and power conversion and control unit such as a static switch. When the commercial power is abnormal or interrupted, the system can be switched to a storage battery power supply mode continuously to maintain the continuous operation of the load, thereby protecting key equipment from damage caused by the problems of power interruption, voltage sudden rise and drop and the like. In the prior art, a power supply architecture in which a single UPS device bears all loads is generally adopted, and the reliability of the architecture is highly dependent on single equipment and has inherent single-point fault risks although the power supply architecture can meet the basic backup power supply requirement in a general scene. Under a single machine architecture, power supply interruption is directly caused by single device faults, module failures or system downtime, so that the scene requirement on high power supply continuity requirements cannot be met, and the system redundancy and the power supply stability are insufficient. On the other hand, the passive heat dissipation mode of the existing device is difficult to cope with dynamic heat load impact caused by load fluctuation, environmental temperature change or equipment aging, and internal hot spot formation and continuous heat accumulation can be caused. The long-term overheat operation can accelerate the performance degradation and insulation aging of key elements such as a power device, an electrolytic capacitor and the like, thereby not only reducing the efficiency of the whole machine and the quality of output electric energy, but also restricting the service life and the long-term operation reliability of the equipment. Disclosure of Invention In order to solve the technical problems of unstable power supply and poor heat dissipation performance of a single uninterruptible power supply device, the invention provides a redundant backup uninterruptible power supply device and a temperature control method thereof, and the adopted technical scheme is as follows: The technical scheme of the first aspect of the invention provides a redundant backup uninterruptible power supply device, which comprises a first uninterruptible power supply device body, a second uninterruptible power supply device body, a rectifier, a storage battery, an inverter, a static switch and a control module, wherein the rectifier, the storage battery, the inverter and the control module are respectively arranged in the first uninterruptible power supply device body and the second uninterruptible power supply device body, and the static switch is arranged on the front surfaces of the first uninterruptible power supply device body and the second uninterruptible power supply device body; The inner sides of the front bottoms of the first uninterrupted power supply device body and the second uninterrupted power supply device body are respectively provided with a bus connection switch; a cooling groove is formed in the left side of the inner part of the first uninterrupted power supply device body, two mounting frames are fixedly connected in the cooling groove, and refrigerating mechanisms for cooling the first uninterrupted power supply device body and the second uninterrupted power supply device body are arranged on the inner sides of the two mounting frames; The cooling mechanism comprises two semiconductor cooling fins, a guiding radiating box and an exhaust fan, wherein the two semiconductor cooling fins are arranged on the inner side of the installation frame, the guiding radiating box is inserted on the left side of the first uninterruptible power supply device body and is communicated with the cooling groove, the guiding radiating box is internally provided with a guiding radiating groove and an air flow groove, and the exhaust fan is fixedly arranged in the guiding radiating groove; the two sides of the left side of the first uninterruptible power supply device body are fixedly connected with connecting assemblies, and the two sides of the left side of the mounting frame are provided with mounting mechanisms; The tops of the first uninterruptible power supply device body and the second uninterruptible power supply device body are respectively provided with a temperature detection mechanism; the top of the second uninterruptible power supply device body is fixedly connected with a controller; a communication guide mechanism is a