Intelligent ultra-silence energy-saving UPS (Uninterrupted Power Supply) management system

Abstract

The invention discloses an intelligent ultra-silence energy-saving UPS (Uninterrupted Power Supply) management system, which comprises an input rectifier module, an energy storage module, an inverter output module, an intelligent control module, a heat dissipation module and a communication module, the input rectifier module is connected with a mains supply power grid and is used for converting alternating current into direct current; the energy storage module adopts a lithium iron phosphate battery pack and is in bidirectional connection with the input rectification module and the inversion output module to realize electric energy storage and release; the inversion output module is used for converting direct current into stable alternating current to be supplied to a load, and the intelligent control module is electrically connected with the input rectification module, the energy storage module, the inversion output module, the heat dissipation module and the communication module. The invention relates to the technical field of uninterruptible power supply equipment, in particular to an intelligent ultra-silence energy-saving uninterruptible power supply (UPS) management system with an ultra-silence heat dissipation structure, dynamic energy-saving control, intelligent monitoring management and self-adaptive battery maintenance functions.

Description

Technical Field

[0001] This invention relates to the field of uninterruptible power supply equipment technology, specifically to an intelligent, ultra-quiet, energy-saving UPS uninterruptible power supply management system. Background Technology

[0002] An uninterruptible power supply (UPS) is a power protection device that can continuously supply power to the load through energy storage devices, such as batteries, when the mains power is interrupted. It is widely used to ensure the stable operation of critical equipment.

[0003] Currently, existing UPS uninterruptible power supplies have the following technical drawbacks:

[0004] 1. Traditional UPS systems mostly use forced air cooling, with fans running continuously at high speeds. Especially in high-power models, the operating noise can reach over 60 decibels, making it difficult to meet the requirements for a quiet environment.

[0005] 2. Regardless of whether the UPS load rate is high or low, its core modules such as inverters and rectifiers often operate in a fixed power mode. The conversion efficiency is low under light load, and the efficiency of some models drops to below 80% when the load rate is below 30%, resulting in energy waste.

[0006] 3. Most UPS systems only have basic voltage switching functions, lack dynamic monitoring and adaptive adjustment of load characteristics and battery status, and have weak remote management functions, requiring manual on-site maintenance, resulting in high operation and maintenance costs.

[0007] 4. Using a fixed charge and discharge mode can easily lead to overcharging, over-discharging, or sulfation of the battery, shortening its service life.

[0008] Therefore, developing an intelligent ultra-quiet energy-saving UPS uninterruptible power supply management system that can achieve ultra-quiet operation, dynamic energy-saving adjustment, intelligent monitoring and management, and extended battery life is an urgent problem to be solved. Summary of the Invention

[0009] In view of the above situation and to overcome the current technical defects, the present invention provides an intelligent ultra-quiet energy-saving UPS uninterruptible power supply management system with ultra-quiet heat dissipation structure, dynamic energy-saving control, intelligent monitoring and management, and adaptive battery maintenance function, so as to solve the problems mentioned in the technical background.

[0010] The technical solution adopted in this invention is as follows: This solution provides an intelligent ultra-quiet energy-saving UPS uninterruptible power supply management system, including an input rectifier module, an energy storage module, an inverter output module, an intelligent control module, a heat dissipation module, and a communication module; the input rectifier module is connected to the mains power grid and is used to convert AC power into DC power; the energy storage module uses a lithium iron phosphate battery pack and is bidirectionally connected to the input rectifier module and the inverter output module to realize energy storage and release; the inverter output module is used to convert DC power into stable AC power to supply the load; the intelligent control module is electrically connected to the input rectifier module, the energy storage module, the inverter output module, the heat dissipation module, and the communication module respectively, and serves as the core control unit of the system; the heat dissipation module includes distributed microchannel heat sinks and an adaptive silent fan group for heat dissipation of the power device surface; the communication module supports 4G / 5G and Ethernet protocols for data upload and remote control.

[0011] Furthermore, the intelligent control module incorporates a load characteristic analysis unit, an energy efficiency optimization unit, and a battery health management unit. The load characteristic analysis unit collects data on load voltage, current, and power factor changes to establish a load fluctuation model and outputs load type and dynamic demand parameters in real time. The energy efficiency optimization unit dynamically adjusts the PWM modulation frequency of the inverter output module and the operating mode of the rectifier module based on the load model and mains power quality. When the load rate is lower than a set value, it automatically switches to sleep mode for energy saving, shuts down redundant power units, and improves the overall efficiency of the UPS uninterruptible power supply.

[0012] Furthermore, the battery health management unit adopts a multi-dimensional monitoring algorithm to establish a health status assessment model by collecting data on the individual cell voltage, temperature, charging and discharging current, and internal resistance changes of the battery pack. Based on the model output, a dynamic equalization charging strategy is executed: when the individual cell voltage difference exceeds 50mV, the individual cell equalization circuit is activated; at the same time, pulse repair is used to alleviate battery sulfation and extend the cycle life of the UPS uninterruptible power supply.

[0013] Furthermore, the adaptive silent fan assembly of the heat dissipation module adopts PID closed-loop control: the intelligent control module collects the temperature of the power devices in real time, and the fan stops running when the temperature is lower than the set value; when the temperature is within the normal range, the fan speed is linearly adjusted; when the temperature is higher than the normal range, the maximum speed is activated and the system derating protection is triggered; the distributed microchannel heat sink is made of aluminum alloy and uses a biomimetic leaf vein structure design to increase the heat dissipation area, and works with the adaptive silent fan assembly to reduce the operating noise of the UPS uninterruptible power supply.

[0014] Furthermore, the communication module is equipped with an edge computing chip for local storage of operating data and communication with the cloud platform via the MQTT protocol. Users can view the system status in real time, receive fault alarms, and remotely set operating parameters such as charging and discharging thresholds and energy-saving mode start / stop settings via mobile devices.

[0015] Furthermore, the intelligent control module also has a switching function between mains power and battery. When the mains power is interrupted or the voltage exceeds the threshold, the intelligent control module triggers a switching command to ensure that the load does not experience power outage fluctuations. During the switching process, voltage spikes are avoided through capacitor energy storage buffer technology.

[0016] The beneficial effects achieved by the present invention using the above structure are as follows:

[0017] Combining adaptive fan control and a high-efficiency heat dissipation structure, its noise level during heat dissipation is reduced by more than 30% compared to traditional UPS systems, meeting the requirements for quiet environments. Through load adaptive adjustment and sleep mode, the operating efficiency of the UPS uninterruptible power supply is fully guaranteed within the normal load range. By combining remote monitoring and edge computing, fault early warning and unattended operation of the UPS uninterruptible power supply are realized, reducing operation and maintenance costs. Through multi-dimensional health management and balanced charging technology, the battery life of the UPS uninterruptible power supply is extended, reducing replacement costs. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a block diagram of the overall architecture of the intelligent ultra-quiet energy-saving UPS uninterruptible power supply management system of the present invention;

[0020] Figure 2 This is a logic block diagram of the intelligent control module of the intelligent ultra-quiet energy-saving UPS uninterruptible power supply management system of the present invention;

[0021] Figure 3 This is a schematic diagram of the heat dissipation module structure of the intelligent ultra-quiet energy-saving UPS uninterruptible power supply management system of the present invention. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0023] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0024] As per the instruction manual Figure 1-3 As shown, the technical solution adopted by the present invention is as follows:

[0025] An intelligent, ultra-quiet, energy-saving UPS uninterruptible power supply management system includes:

[0026] The input rectifier module, model REC-3000, is connected to the mains power grid to convert 220V AC power to 36V DC power.

[0027] The energy storage module is equipped with a 24V / 100Ah lithium iron phosphate battery pack in a 16-series-4-parallel configuration. The energy storage module is connected to the input rectifier module and the inverter output module via a DC / DC converter to enable bidirectional flow of electrical energy.

[0028] The inverter output module uses the DSP chip TMS320F28335 to implement PWM control; the inverter output module converts DC power into 220V / 50Hz AC power, with an output power range of 0.5-10kVA.

[0029] The intelligent control module uses an STM32H743 microprocessor as its main controller. The intelligent control module collects data from each module via an RS485 bus and outputs control signals.

[0030] The heat dissipation module includes three sets of 6025 silent fans and microchannel heat sinks. In the heat dissipation module, the microchannel heat sinks are attached to the surface of the IGBT tubes of the inverter module, and the fan groups are driven by the intelligent control module through the GPIO interface.

[0031] The communication module is equipped with an EC204G module and an Ethernet chip W5500; the communication module interacts with the intelligent control module through the SPI interface to achieve remote communication.

[0032] In practical use, the system workflow is as follows:

[0033] In normal mains power mode, the input rectifier module converts mains power into DC power. Part of the DC power is used to float charge the energy storage module at a charging current of 0.5C and a constant voltage of 34.5V. The other part is used to power the load through the inverter output module. The intelligent control module collects the load power in real time with a sampling period of 100ms. When the load rate is less than 20%, it controls the inverter module to switch to a low-frequency modulation mode of 5kHz and shuts down two sets of redundant fans.

[0034] In mains power interruption mode, after the intelligent control module detects an abnormality in the mains power, if the abnormality lasts for more than 10ms, it triggers a switching command. The energy storage module is powered through the inverter output module, and the switching time is less than 2ms. At the same time, the battery health management unit is started to monitor the voltage of individual cells in real time. When the voltage of a certain battery cell is less than 2.5V, the equalization circuit is started.

[0035] A temperature sensor collects the IGBT temperature. When the temperature is 45℃, the fan speed is adjusted to 800 rpm; when the temperature is 50℃, the speed is increased to 1200 rpm; when the temperature is >60℃, the system automatically reduces the power output to 80%.

[0036] The communication module uploads operating data to the cloud platform every 5 minutes, including input voltage, output current, and battery SOC information. When the battery SOC is detected to be less than 20% or the temperature is greater than 65°C, an alarm message is immediately pushed to the user's APP. Users can remotely set the energy-saving mode activation threshold through the APP.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, material, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, material, or apparatus.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An intelligent, ultra-quiet, energy-saving UPS uninterruptible power supply management system, characterized in that: The system includes an input rectifier module, an energy storage module, an inverter output module, an intelligent control module, a heat dissipation module, and a communication module. The input rectifier module is connected to the mains power grid to convert AC power to DC power. The energy storage module uses a lithium iron phosphate battery pack and is bidirectionally connected to the input rectifier module and the inverter output module to store and release electrical energy. The inverter output module converts DC power into stable AC power to supply the load. The intelligent control module is electrically connected to the input rectifier module, energy storage module, inverter output module, heat dissipation module, and communication module, serving as the core control unit of the system. The heat dissipation module includes distributed microchannel heat sinks and an adaptive silent fan assembly for heat dissipation of the power device surface. The communication module is used for data uploading and remote control.

2. The intelligent ultra-quiet energy-saving UPS uninterruptible power supply management system according to claim 1, characterized in that: The intelligent control module has a built-in load characteristic analysis unit, energy efficiency optimization unit, and battery health management unit. The load characteristic analysis unit collects the changes in load voltage, current, and power factor to establish a load fluctuation model and outputs load type and dynamic demand parameters in real time.

3. The intelligent ultra-quiet energy-saving UPS uninterruptible power supply management system according to claim 1, characterized in that: The battery health management unit adopts a multi-dimensional monitoring algorithm to establish a health status assessment model by collecting data on the individual cell voltage, temperature, charging and discharging current, and internal resistance changes of the battery pack. Based on the model output, a dynamic equalization charging strategy is executed: when the individual cell voltage difference exceeds 50mV, the individual cell equalization circuit is activated; at the same time, pulse repair is used to alleviate battery sulfation and extend the cycle life of the UPS uninterruptible power supply.

4. The intelligent ultra-quiet energy-saving UPS uninterruptible power supply management system according to claim 1, characterized in that: The adaptive silent fan assembly of the heat dissipation module adopts PID closed-loop control: the intelligent control module collects the temperature of the power device in real time, and the fan stops running when the temperature is lower than the set value; when the temperature is within the normal range, the fan speed is linearly adjusted; when the temperature is higher than the normal range, the maximum speed is started and the system derating protection is triggered.

5. The intelligent ultra-quiet energy-saving UPS uninterruptible power supply management system according to claim 1, characterized in that: The communication module is equipped with an edge computing chip for local storage of operating data and communication with the cloud platform via the MQTT protocol. Users can view the system status in real time, receive fault alarms, and remotely set operating parameters such as charging and discharging thresholds and energy-saving mode start / stop settings via mobile devices.

6. The intelligent ultra-quiet energy-saving UPS uninterruptible power supply management system according to claim 1, characterized in that: The intelligent control module also has a switching function between mains power and battery. When the mains power is interrupted or the voltage exceeds the threshold, the intelligent control module triggers a switching command to ensure that the load does not experience power outage fluctuations. During the switching process, voltage spikes are avoided through capacitor energy storage buffer technology.

7. The intelligent ultra-quiet energy-saving UPS uninterruptible power supply management system according to claim 1, characterized in that: The distributed microchannel heat sink is made of aluminum alloy and features a biomimetic leaf vein structure design to increase the heat dissipation area. It is also equipped with an adaptive silent fan group to reduce the operating noise of the UPS uninterruptible power supply.

8. The intelligent ultra-quiet energy-saving UPS uninterruptible power supply management system according to claim 1, characterized in that: The intelligent control module also has a built-in energy efficiency optimization unit. The energy efficiency optimization unit can dynamically adjust the PWM modulation frequency of the inverter output module and the working mode of the rectifier module according to the load model and the mains power quality. When the load rate is lower than the set value, it automatically switches to sleep energy saving and shuts down redundant power units to improve the overall efficiency of the UPS uninterruptible power supply.

9. The intelligent ultra-quiet energy-saving UPS uninterruptible power supply management system according to claim 1, characterized in that: The communication module supports 4G / 5G and Ethernet protocols.

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