Intelligent UPS Power Control System

Abstract

The present invention discloses an intelligent UPS power control system, which relates to the technical field of UPS power supplies. When the first detection module detects that the electric energy provided by the power control module is lower than the first low-voltage threshold and higher than the second low-voltage threshold, it will control the first battery module or the second battery module to perform electric energy superposition power supply with the power control module through the energy-saving control module, reduce the power consumption of the first battery module and the second battery module, and rationally utilize the electric energy of the power control module. When the first battery module is low on power or the power control module is lower than the second voltage threshold, the charge and discharge control module will automatically control the first battery module or the second battery module to perform balanced discharge and control the first battery module and the second battery module to perform series discharge, and the charge and discharge control module can perform balanced charge control. The intelligent UPS power control system of the present invention can increase the endurance of the power supply, improve the power supply efficiency, charge and discharge safety and service life of the power supply.

Description

Technical Field

[0001] The present invention relates to the technical field of UPS power supplies, specifically an intelligent UPS power supply control system. Background Art

[0002] A UPS power supply, that is, an uninterruptible power supply, is a constant voltage and constant frequency uninterruptible power supply containing an energy storage device and mainly composed of an inverter. It is mainly used to provide uninterrupted power supply for a computer network system or other power electronic devices. In the prior art, the UPS power supply can only be used as the main power supply when the main power supply fails and power is cut off, so as to provide uninterrupted electrical energy. Due to the inability to reasonably distribute the electrical energy between the UPS power supply and the main power supply, and the limited endurance of the UPS power supply, the power supply cycle of the UPS power supply is short. And because the UPS power supply generally consists of multiple groups of battery packs, the situation of unbalanced charge and discharge is likely to occur, reducing the power supply efficiency. Therefore, it needs to be improved. Summary of the Invention

[0003] The embodiment of the present invention provides an intelligent UPS power supply control system to solve the problems raised in the above background art.

[0004] According to the embodiment of the present invention, an intelligent UPS power supply control system is provided, including: a power control module, a first detection module, a micro-control module, a first battery module, a second battery module, an energy-saving control module, a second detection module, a charge and discharge module, and an output module;

[0005] The power control module is connected to the micro-control module and the energy-saving control module, and is used for rectifying and filtering the accessed AC electrical energy and outputting the first electrical energy. When receiving the first energy-saving signal output by the micro-control module, it superimposes the second electrical energy transmitted by the energy-saving control module on the first electrical energy. When receiving the second energy-saving signal output by the micro-control module, it superimposes the third electrical energy transmitted by the energy-saving control module on the first electrical energy, and outputs the fourth electrical energy after superimposition;

[0006] The first detection module is connected to the power control module, and is used for sampling the first electrical energy, setting a first low-voltage threshold and a second low-voltage threshold, and outputting a first detection signal when the sampling signal is less than the first low-voltage threshold, and outputting a second detection signal when it is less than the second low-voltage threshold;

[0007] The micro - control module, connected to the first detection module and the second detection module, is used to output a first pulse signal when the first detection signal is not received, and output an equalizing charge signal when the power levels of the first battery module and the second battery module are unequal, output a first charge signal when the power levels of the first battery module and the second battery module are equal, output a first energy - saving signal and a second energy - saving signal periodically and cyclically when the first detection signal is received and the second detection signal is not received, output an equalizing discharge signal when the second detection signal or the third detection signal output by the second detection module is received and the power levels of the first battery module and the second battery module are unequal, and output a first discharge signal when the power levels of the first battery module and the second battery module are equal;

[0008] The charge - discharge module, connected to the micro - control module, the first battery module and the second battery module, is used to transfer the first electric energy to the first battery module or the second battery module with lower power when the equalizing charge signal is received, transfer the first electric energy to the first battery module and the second battery module when the first charge signal is received, control the discharge operation of the first battery module or the second battery module when the first energy - saving signal or the second energy - saving signal is received, regulate the electric energy provided by the first battery module or the second battery module with higher power when the equalizing discharge signal is received, and regulate the electric energy provided by the series - connected first battery module and the second battery module when the first discharge signal is received, and output the fifth electric energy;

[0009] The first battery module is used to store the input electric energy, discharge and provide the second electric energy;

[0010] The second battery module, connected to the first battery module, is used to store the input electric energy, discharge and provide the third electric energy, and supply power in series with the first battery module;

[0011] The energy - saving control module, connected to the first battery module, the second battery module and the micro - control module, is used to transfer the second electric energy to the power - control module when the first energy - saving signal is received, and transfer the third electric energy to the power - control module when the second energy - saving signal is received;

[0012] The second detection module, connected to the first battery module, is used to sample the power level of the second electric energy and output a third detection signal when the sampled signal is lower than the set first low - power threshold;

[0013] The output module, connected to the charge - discharge module and the power - control module, is used to invert - process the received first electric energy, fourth electric energy and fifth electric energy and output them.

[0014] As a further solution of the present invention: The power control module includes a power interface, a first rectifier, a first capacitor, a second capacitor, a first diode, a fifth diode, a sixth diode, a first power tube, and a third capacitor; the output module includes a first inverter and an output port; the micro-control module includes a first controller.

[0015] Preferably, the first end and the second end of the power interface are respectively connected to the first end and the second end of the first rectifier. The third end of the first rectifier is connected to the anode of the first diode and the first end of the second capacitor, and is connected to the fourth end of the first rectifier, one end of the third capacitor, the second end of the first inverter, and the ground terminal through the first capacitor. The cathode of the first diode is connected to the source of the first power tube, the other end of the third capacitor, and the first end of the first inverter. The drain of the first power tube is connected to the second end of the second capacitor block. The gate of the first power tube is connected to the cathodes of the fifth diode and the sixth diode. The anodes of the fifth diode and the sixth diode are respectively connected to the IO1 terminal and the IO2 terminal of the first controller. The third end and the fourth end of the first inverter are respectively connected to the first end and the second end of the output port.

[0016] As a further solution of the present invention: The energy-saving control module includes a second diode, a fourth diode, a second power tube, and an eleventh power tube; the first battery module includes a first battery pack; the second battery module includes a second battery pack.

[0017] Preferably, the cathode of the second diode is connected to the cathode of the fourth diode and the second end of the second capacitor. The anodes of the second diode and the fourth diode are respectively connected to the source of the second power tube and the source of the eleventh power tube. The drain of the second power tube is connected to the first end of the first battery pack. The second end of the first battery pack is connected to the first end of the second battery pack and the drain of the eleventh power tube. The second end of the second battery pack is connected to the charge and discharge module. The gates of the second power tube and the eleventh power tube are respectively connected to the IO1 terminal and the IO2 terminal of the first controller.

[0018] As a further solution of the present invention: The charge and discharge module includes a third power tube, a third diode, a fifth power tube, an eighth diode, a thirteenth power tube, a sixth power tube, a fourth power tube, an eighth power tube, a ninth power tube, and a seventh power tube.

[0019] Preferably, the drain of the third power transistor is connected to the drains of the fifth power transistor and the eighth power transistor. The source of the third power transistor is connected to the anode of the third diode. The cathode of the third diode is connected to the first end of the first battery pack and the drain of the sixth power transistor. The source of the sixth power transistor is connected to the sources of the fourth power transistor, the seventh power transistor, and the second end of the first inverter. The drain of the fourth power transistor is connected to the drain of the thirteenth power transistor. The source of the thirteenth power transistor is connected to the second end of the first battery pack and the cathode of the eighth diode. The anode of the eighth diode is connected to the source of the fifth power transistor. The drain of the seventh power transistor is connected to the drain of the ninth power transistor. The source of the ninth power transistor is connected to the second end of the second battery pack and the source of the eighth power transistor. The gates of the third power transistor, the fourth power transistor, the fifth power transistor, the sixth power transistor, the seventh power transistor, the eighth power transistor, the ninth power transistor, and the thirteenth power transistor are respectively connected to the IO3 terminal, IO4 terminal, IO5 terminal, IO6 terminal, IO7 terminal, IO8 terminal, IO2 terminal, and IO1 terminal of the first controller.

[0020] As a further solution of the present invention: The charge and discharge module further includes a first inductor, a twelfth power transistor, a tenth power transistor, a seventh diode, and a fourth capacitor;

[0021] Preferably, the source of the tenth power transistor is connected to the cathode of the seventh diode and is connected to the source of the twelfth power transistor and the drain of the eighth power transistor through the first inductor. The drain of the twelfth power transistor is connected to the drain of the tenth power transistor and the first end of the first inverter and is connected to the anode of the seventh diode and the second end of the first inverter through the fourth capacitor. The gates of the twelfth power transistor and the tenth power transistor are respectively connected to the IO9 terminal and IO10 terminal of the first controller.

[0022] As a further solution of the present invention: The first detection module includes a first resistor, a second resistor, a first detection device, and a second detection device;

[0023] Preferably, the first end of the first detection device is connected to the first end of the second detection device and one end of the second resistor and is connected to the third end of the first rectifier through the first resistor. The other end of the second resistor is connected to the fourth end of the first rectifier. The second end of the first detection device and the second end of the second detection device are respectively connected to the IO11 terminal and IO12 terminal of the first controller.

[0024] As a further solution of the present invention: The second detection module includes a third resistor, a fourth resistor, and a third detection device;

[0025] Preferably, one end of the third resistor is connected to the first end of the third detection device and is connected to the second end of the first battery pack through the fourth resistor. The other end of the third resistor is connected to the first end of the first battery pack. The second end of the third detection device is connected to the IO13 terminal of the first controller.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows: The intelligent UPS power control system of the present invention can detect the power supply status of the power control module by the first detection module. When the electric energy provided by the power control module is lower than the first low voltage threshold and higher than the second low voltage threshold, the energy-saving control module will control the first battery module or the second battery module to supply power in superposition with the power control module, reducing the power consumption of the first battery module and the second battery module and reasonably utilizing the electric energy provided by the power control module, increasing the endurance of the UPS power supply. When the first battery module is low in power or the power control module is lower than the second voltage threshold, the charge and discharge control module will automatically control the first battery module or the second battery module to perform balanced discharge and control the first battery module and the second battery module to perform series discharge, improving the power supply efficiency of the UPS power supply, and the charge and discharge control module can control the first battery module and the second battery module to perform balanced charging operation, improving the charging and discharging safety and service life of the UPS power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0028] Figure 1 It is a schematic block diagram of the principle of the intelligent UPS power control system provided by the embodiment of the present invention.

[0029] Figure 2 It is a circuit diagram of the intelligent UPS power control system provided by the embodiment of the present invention.

[0030] Figure 3 It is a circuit diagram of the first detection module provided by the embodiment of the present invention.

[0031] Figure 4 It is a circuit diagram of the second detection module provided by the embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] In one embodiment, please refer to Figure 1, intelligent UPS power supply control system, including: power supply control module 1, first detection module 2, micro control module 3, first battery module 4, second battery module 5, energy saving control module 6, second detection module 7, charge and discharge module 8 and output module 9;

[0034] Specifically, the power control module 1 is connected to the micro-control module 3 and the energy-saving control module 6, and is used to rectify and filter the incoming AC power and output a first electric energy. When receiving a first energy-saving signal output by the micro-control module 3, the power control module 1 superimposes the second electric energy transmitted by the energy-saving control module 6 with the first electric energy. When receiving a second energy-saving signal output by the micro-control module 3, the power control module 1 superimposes the third electric energy transmitted by the energy-saving control module 6 with the first electric energy, and outputs a fourth electric energy after superposition.

[0035] The first detection module 2 is connected to the power control module 1 and is used to sample the first electric energy, set a first low-voltage threshold and a second low-voltage threshold, and output a first detection signal when the sampling signal is less than the first low-voltage threshold, and output a second detection signal when the sampling signal is less than the second low-voltage threshold;

[0036] The microcontroller module 3 is connected to the first detection module 2 and the second detection module 7, and is configured to output a first pulse signal when the first detection signal is not received, and output a balancing charging signal when the power levels of the first battery module 4 and the second battery module 5 are unequal; output a first charging signal when the power levels of the first battery module 4 and the second battery module 5 are equal; output a first energy-saving signal and a second energy-saving signal in a timely and cyclic manner when the first detection signal is received and the second detection signal is not received; output a balancing discharge signal when the second detection signal or the third detection signal output by the second detection module 7 is received and the power levels of the first battery module 4 and the second battery module 5 are unequal; and output a first discharge signal when the power levels of the first battery module 4 and the second battery module 5 are equal;

[0037] The charging and discharging module 8 is connected to the microcontroller module 3, the first battery module 4, and the second battery module 5. The charging and discharging module 8 is configured to transmit the first electric energy to the first battery module 4 or the second battery module 5 with a lower charge upon receiving a balanced charging signal, transmit the first electric energy to the first battery module 4 and the second battery module 5 upon receiving a first charging signal, control the discharge operation of the first battery module 4 or the second battery module 5 upon receiving a first energy-saving signal or a second energy-saving signal, adjust the electric energy provided by the first battery module 4 or the second battery module 5 with a higher charge upon receiving a balanced discharge signal, and adjust the electric energy provided by the first battery module 4 and the second battery module 5 in series upon receiving a first discharge signal to output a fifth electric energy.

[0038] A first battery module 4 is used to store input electrical energy and discharge it to provide second electrical energy;

[0039] The second battery module 5 is connected to the first battery module 4 and is used to store input electrical energy and discharge and provide third electrical energy, and is connected in series with the first battery module 4 to supply power;

[0040] an energy-saving control module 6 connected to the first battery module 4, the second battery module 5, and the microcontroller module 3, and configured to transmit the second electric energy to the power control module 1 upon receiving the first energy-saving signal, and to transmit the third electric energy to the power control module 1 upon receiving the second energy-saving signal;

[0041] The second detection module 7 is connected to the first battery module 4 and is used to sample the power of the second electric energy and output a third detection signal when the sampled signal is lower than a set first low power threshold;

[0042] The output module 9 is connected to the charging and discharging module 8 and the power control module 1 , and is used to invert and output the received first electric energy, fourth electric energy and fifth electric energy.

[0043] In a specific embodiment, the above-mentioned power control module 1 can adopt a power control circuit composed of a power interface, a rectifier, a capacitor, a field-effect transistor, etc., which can access AC electric energy and perform rectification filtering, electric energy superposition and electric energy transmission control; the above-mentioned first detection module 2 can adopt a first detection circuit composed of a resistor and a detection device to sample the voltage of the power control module 1 and compare the sampled signal with the set first low-voltage threshold and the second low-voltage threshold. The first low-voltage threshold is greater than the second low-voltage threshold, and the second low-voltage threshold is the lowest supply voltage of the power control module 1; the above-mentioned micro-control module 3 can adopt a micro-control circuit composed of a single-chip microcomputer, which integrates many components such as an arithmetic unit, a controller, a memory, and an input / output device, and realizes functions such as signal processing, data storage, module control, and timing control; the above-mentioned first battery module 4 can adopt a first battery circuit composed of a first battery pack, which is used as a UPS power supply and can perform energy storage and discharge; the above-mentioned second battery module 5 can adopt a second battery circuit composed of a second battery pack, which is used as a UPS power supply and can perform energy storage and discharge; the above-mentioned energy-saving control module 6 can adopt an energy-saving control circuit composed of a field-effect transistor and a diode, which can transmit electric energy and control the electric energy superposition operation of the first battery module 4 or the second battery module 5 and the power control module 1; the above-mentioned second detection module 7 can adopt a second detection circuit composed of a resistor and a detection device to sample the power of the first battery module 4 and compare whether the sampled signal is lower than the set first low-power threshold, and the first low-power threshold is the lowest power at which the set first battery module 4 can supply power alone; the above-mentioned charge and discharge module 8 can adopt a charge and discharge control circuit composed of a field-effect transistor, a diode, an inductor, etc., and realizes the balanced energy storage and balanced discharge operation of the first battery module 4 and the second battery module 5 by controlling the transmission state of electric energy; the above-mentioned output module 9 can adopt an output circuit composed of an inverter and an output port, which can perform inversion and electric energy output.

[0044] In another embodiment, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , the power control module 1 includes a power interface, a first rectifier T1, a first capacitor C1, a second capacitor C2, a first diode D1, a fifth diode D5, a sixth diode D6, a first power transistor Q1 and a third capacitor C3; the output module 9 includes a first inverter T2 and an output port; the micro-control module 3 includes a first controller U1;

[0045] Specifically, the first end and the second end of the power interface are respectively connected to the first end and the second end of the first rectifier T1, the third end of the first rectifier T1 is connected to the anode of the first diode D1 and the first end of the second capacitor C2 and is connected to the fourth end of the first rectifier T1, one end of the third capacitor C3, the second end of the first inverter T2 and the ground end through the first capacitor C1, the cathode of the first diode D1 is connected to the source of the first power tube Q1, the other end of the third capacitor C3 and the first end of the first inverter T2, the drain of the first power tube Q1 is connected to the second end of the second capacitor C2, the gate of the first power tube Q1 is connected to the cathode of the fifth diode D5 and the cathode of the sixth diode D6, the anode of the fifth diode D5 and the anode of the sixth diode D6 are respectively connected to the IO1 end and IO2 end of the first controller U1, and the third end and the fourth end of the first inverter T2 are respectively connected to the first end and the second end of the output port.

[0046] In a specific embodiment, the first electric energy and the second electric energy can both be energy storage capacitors; the first power tube Q1 can be an N-channel field effect tube with a parasitic diode; the first controller U1 can be an STM32 microcontroller; the first inverter T2 can be composed of four groups of IGBTs.

[0047] Furthermore, the energy-saving control module 6 includes a second diode D2, a fourth diode D4, a second power tube Q2 and an eleventh power tube Q11; the first battery module 4 includes a first battery pack; the second battery module 5 includes a second battery pack;

[0048] Specifically, the cathode of the second diode D2 is connected to the cathode of the fourth diode D4 and the second end of the second capacitor C2, the anode of the second diode D2 and the anode of the fourth diode D4 are respectively connected to the source of the second power tube Q2 and the source of the eleventh power tube Q11, the drain of the second power tube Q2 is connected to the first end of the first battery pack, the second end of the first battery pack is connected to the first end of the second battery pack and the drain of the eleventh power tube Q11, the second end of the second battery pack is connected to the charge and discharge module 8, and the gate of the second power tube Q2 and the gate of the eleventh power tube Q11 are respectively connected to the IO1 end and IO2 end of the first controller U1.

[0049] In a specific embodiment, the second power tube Q2 and the third power tube Q3 can both be N-channel field effect tubes with parasitic diodes; and the first battery pack and the second battery pack can both be storage battery packs.

[0050] Furthermore, the charge and discharge module 8 includes a third power tube Q3, a third diode D3, a fifth power tube Q5, an eighth diode D8, a thirteenth power tube Q13, a sixth power tube Q6, a fourth power tube Q4, an eighth power tube Q8, a ninth power tube Q9 and a seventh power tube Q7;

[0051] Specifically, the drain of the third power transistor Q3 is connected to the drains of the fifth power transistor Q5 and the eighth power transistor Q8. The source of the third power transistor Q3 is connected to the anode of the third diode D3. The cathode of the third diode D3 is connected to the first end of the first battery pack and the drain of the sixth power transistor Q6. The source of the sixth power transistor Q6 is connected to the sources of the fourth power transistor Q4, the seventh power transistor Q7, and the second end of the first inverter T2. The drain of the fourth power transistor Q4 is connected to the drain of the thirteenth power transistor Q13. The source of the thirteenth power transistor Q13 is connected to the second end of the first battery pack and the cathode of the eighth diode D8. The anode of the eighth diode D8 is connected to the source of the fifth power transistor Q5. The drain of the seventh power transistor Q7 is connected to the drain of the ninth power transistor Q9. The source of the ninth power transistor Q9 is connected to the second end of the second battery pack and the source of the eighth power transistor Q8. The gates of the third power transistor Q3, the fourth power transistor Q4, the fifth power transistor Q5, the sixth power transistor Q6, the seventh power transistor Q7, the eighth power transistor Q8, the ninth power transistor Q9, and the thirteenth power transistor Q13 are respectively connected to the IO3 terminal, IO4 terminal, IO5 terminal, IO6 terminal, IO7 terminal, IO8 terminal, IO2 terminal, and IO1 terminal of the first controller U1.

[0052] In a specific embodiment, the above-mentioned third power transistor Q3, fourth power transistor Q4, fifth power transistor Q5, sixth power transistor Q6, seventh power transistor Q7, eighth power transistor Q8, ninth power transistor Q9, and thirteenth power transistor Q13 can all be selected as N-channel field effect transistors with parasitic diodes.

[0053] Furthermore, the charge and discharge module 8 further includes a first inductor L1, a twelfth power transistor Q12, a tenth power transistor Q10, a seventh diode D7, and a fourth capacitor C4;

[0054] Specifically, the source of the tenth power transistor Q10 is connected to the cathode of the seventh diode D7 and is connected to the source of the twelfth power transistor Q12 and the drain of the eighth power transistor Q8 through the first inductor L1. The drain of the twelfth power transistor Q12 is connected to the drain of the tenth power transistor Q10 and the first end of the first inverter T2 and is connected to the anode of the seventh diode D7 and the second end of the first inverter T2 through the fourth capacitor C4. The gates of the twelfth power transistor Q12 and the tenth power transistor Q10 are respectively connected to the IO9 terminal and IO10 terminal of the first controller U1.

[0055] In a specific embodiment, the above-mentioned twelfth power transistor Q12 and tenth power transistor Q10 can both be selected as N-channel field effect transistors with parasitic diodes.

[0056] Furthermore, the first detection module 2 includes a first resistor R1, a second resistor R2, a first detection device, and a second detection device;

[0057] Specifically, the first end of the first detection device is connected to the first end of the second detection device and one end of the second resistor R2, and is connected to the third end of the first rectifier T1 through the first resistor R1. The other end of the second resistor R2 is connected to the fourth end of the first rectifier T1. The second end of the first detection device and the second end of the second detection device are respectively connected to the IO11 end and the IO12 end of the first controller U1.

[0058] In a specific embodiment, the above-mentioned first resistor R1 and second resistor R2 can perform voltage sampling; the above-mentioned first detection device and second detection device can both be composed of a reference power supply, a resistor, and a comparator, and respectively provide a first low voltage threshold and a second low voltage threshold, and can compare the magnitude of the sampled signal with the voltage of the provided low voltage threshold.

[0059] Further, the second detection module 7 includes a third resistor R3, a fourth resistor R4, and a third detection device;

[0060] Specifically, one end of the third resistor R3 is connected to the first end of the third detection device and is connected to the second end of the first battery pack through the fourth resistor R4. The other end of the third resistor R3 is connected to the first end of the first battery pack. The second end of the third detection device is connected to the IO13 end of the first controller U1.

[0061] In a specific embodiment, the above-mentioned third resistor R3 and fourth resistor R4 perform power sampling; the above-mentioned third detection device can be composed of a reference power supply, a resistor, and a comparator, provides a first low power threshold, and compares the magnitude of the sampled signal with the voltage of the first low power threshold.

[0062] In the intelligent UPS power control system of this embodiment, AC power is accessed through the power interface. The first rectifier T1 and the first capacitor C1 perform rectification and filtering and output the first electric energy. This first electric energy is transmitted by the first diode D1 to the first inverter T2. The first resistor R1 and the second resistor R2 perform voltage sampling on the first electric energy. When the sampled signal is greater than the first low-voltage threshold set by the first detection device, it indicates that the electric energy provided by the power control module 1 at this time meets the power demand. The IO10 terminal of the first controller U1 outputs a first pulse signal to control the tenth power transistor Q10 to conduct, and cooperates with the first inductor L1 and the seventh diode D7 for power regulation. At the same time, when the power levels of the first battery module 4 and the second battery module 5 are not equal, that is, when the power level of the first battery module 4 is lower than that of the second battery module 5, the IO3 terminal and the IO4 terminal of the first controller U1 output an equalization charging signal to control the third power transistor Q3 and the fourth power transistor Q4 to conduct, and then charge the first battery pack. Similarly, when the power level of the second battery module 5 is lower than that of the first battery module 4, the IO5 terminal and the IO7 terminal of the first controller U1 output an equalization charging signal to control the fifth power transistor Q5 and the seventh power transistor Q7 to conduct to charge the second battery pack. When the power levels of the first battery pack and the second battery pack are balanced, the IO3 terminal and the IO7 terminal of the first controller U1 output a first charging signal to control the first battery pack and the second battery pack to perform series energy storage. When the sampled signal is less than the first low-voltage threshold and greater than the second low-voltage threshold, it indicates that the electric energy provided by the power control module 1 cannot directly meet the power supply demand. At this time, the IO1 terminal and the IO2 terminal of the first controller U1 will periodically and cyclically output a first energy-saving signal and a second energy-saving signal. The first energy-saving signal controls the second power transistor Q2, the first power transistor Q1, and the thirteenth power transistor Q13 to conduct, so that the second capacitor C2 stores the electric energy provided by the first battery pack and performs superposition processing with the first electric energy. The superposed electric energy is transmitted to the first inverter T2 through the first power transistor Q1. Similarly, the second electric energy stores the electric energy provided by the second battery pack and outputs it in superposition with the first electric energy. The third resistor R3 and the fourth resistor R4 perform power sampling on the first battery pack. If the sampled signal is lower than the first low-power threshold, the third detection device outputs a third detection signal, indicating that the electric energy after the superposition of the first battery pack and the first electric energy cannot meet the power supply demand, or when the first electric energy is lower than the second low-voltage threshold, it indicates that the power control module 1 cannot supply power normally, and when the power levels of the first battery pack and the second battery pack are not equal, the battery pack with the higher power level will be discharged first. Specifically, when the power level of the second battery pack is higher than that of the first battery pack, the IO4 terminal and the IO8 terminal of the first controller U1 output an equalization discharge signal to control the fourth power transistor Q4 and the eighth power transistor Q8 to conduct. The second battery pack, the fourth power transistor Q4, the seventh diode D7, the first inductor L1, and the eighth power transistor Q8 form a loop, so that the electric energy provided by the second battery pack is stored by the first inductor L1, and the stored electric energy is released by the first inductor L1 and used for the operation of the first inverter T2. Similarly,When the power of the first battery pack is higher than that of the second battery pack, the first battery pack will be controlled to supply power. When the power of the second battery pack is equal to that of the first battery pack, the IO6 terminal and the IO8 terminal of the first controller U1 will output a first discharge signal to control the first battery pack, the second battery pack, the sixth power transistor Q6, the seventh diode D7, the first inductor L1 and the eighth power transistor Q8 to form a loop. The first inductor L1 stores energy and supplies power to the first inverter T2. The first inverter T2 performs inversion and regulation processing on the input electric energy and transmits the processed electric energy to the electronic device connected to the output port.

[0063] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed invention.

[0064] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. Intelligent UPS power control system, characterized by: The intelligent UPS power supply control system includes: a power supply control module, a first detection module, a micro control module, a first battery module, a second battery module, an energy-saving control module, a second detection module, a charge and discharge module and an output module; The power control module is connected to the micro-control module and the energy-saving control module, and is used to rectify and filter the incoming AC power and output a first electric energy. When receiving a first energy-saving signal output by the micro-control module, the power control module superimposes the second electric energy transmitted by the energy-saving control module with the first electric energy. When receiving a second energy-saving signal output by the micro-control module, the power control module superimposes the third electric energy transmitted by the energy-saving control module with the first electric energy, and outputs a fourth electric energy after superposition. The first detection module is connected to the power control module and is used to sample the first electric energy, set a first low-voltage threshold and a second low-voltage threshold, and output a first detection signal when the sampling signal is less than the first low-voltage threshold, and output a second detection signal when the sampling signal is less than the second low-voltage threshold; The microcontrol module is connected to the first detection module and the second detection module, and is configured to output a first pulse signal when the first detection signal is not received, and output a balancing charging signal when the power levels of the first battery module and the second battery module are unequal, and output a first charging signal when the power levels of the first battery module and the second battery module are equal, and output a first energy-saving signal and a second energy-saving signal in a timely and cyclic manner when the first detection signal is received and the second detection signal is not received, and output a balancing discharge signal when the second detection signal or the third detection signal output by the second detection module is received and the power levels of the first battery module and the second battery module are unequal, and output a first discharge signal when the power levels of the first battery module and the second battery module are equal; The charge and discharge module is connected to the microcontroller module, the first battery module, and the second battery module, and is configured to, upon receiving a balanced charging signal, transmit the first electric energy to the first battery module or the second battery module with a lower charge; upon receiving a first charging signal, transmit the first electric energy to the first battery module and the second battery module; upon receiving a first energy-saving signal or a second energy-saving signal, control the discharge operation of the first battery module or the second battery module; upon receiving a balanced discharge signal, adjust the electric energy provided by the first battery module or the second battery module with a higher charge; and upon receiving a first discharge signal, adjust the electric energy provided by the first battery module and the second battery module in series to output a fifth electric energy. The first battery module is used to store input electric energy and discharge it to provide second electric energy; The second battery module is connected to the first battery module and is used to store input electrical energy and discharge and provide third electrical energy, and is connected in series with the first battery module to supply power; The energy-saving control module is connected to the first battery module, the second battery module and the micro-control module, and is used to transmit the second electric energy to the power control module when receiving the first energy-saving signal, and transmit the third electric energy to the power control module when receiving the second energy-saving signal; The second detection module is connected to the first battery module and is configured to sample the power of the second electric energy and output a third detection signal when the sampled signal is lower than a set first low power threshold; The output module is connected to the charge and discharge module and the power supply control module and is configured to perform an inversion process on the received first electric energy, fourth electric energy, and fifth electric energy and output them; The charge and discharge module includes a third power transistor, a third diode, a fifth power transistor, an eighth diode, a thirteenth power transistor, a sixth power transistor, a fourth power transistor, an eighth power transistor, a ninth power transistor, and a seventh power transistor; The drain of the third power transistor is connected to the drains of the fifth power transistor and the eighth power transistor. The source of the third power transistor is connected to the anode of the third diode. The cathode of the third diode is connected to the first end of the first battery pack and the drain of the sixth power transistor. The source of the sixth power transistor is connected to the sources of the fourth power transistor, the seventh power transistor, and the second end of the first inverter. The drain of the fourth power transistor is connected to the drain of the thirteenth power transistor. The source of the thirteenth power transistor is connected to the second end of the first battery pack and the cathode of the eighth diode. The anode of the eighth diode is connected to the source of the fifth power transistor. The drain of the seventh power transistor is connected to the drain of the ninth power transistor. The source of the ninth power transistor is connected to the second end of the second battery pack and the source of the eighth power transistor. The gates of the third power transistor, the fourth power transistor, the fifth power transistor, the sixth power transistor, the seventh power transistor, the eighth power transistor, the ninth power transistor, and the thirteenth power transistor are respectively connected to the IO3 terminal, IO4 terminal, IO5 terminal, IO6 terminal, IO7 terminal, IO8 terminal, IO2 terminal, and IO1 terminal of the first controller.

2. The intelligent UPS power control system according to claim 1, characterized in that The power supply control module includes a power supply interface, a first rectifier, a first capacitor, a second capacitor, a first diode, a fifth diode, a sixth diode, a first power transistor, and a third capacitor; the output module includes a first inverter and an output port; the micro control module includes a first controller; The first end and the second end of the power supply interface are respectively connected to the first end and the second end of the first rectifier. The third end of the first rectifier is connected to the anode of the first diode and the first end of the second capacitor and is connected to the fourth end of the first rectifier, one end of the third capacitor, the second end of the first inverter, and the ground terminal through the first capacitor. The cathode of the first diode is connected to the source of the first power transistor, the other end of the third capacitor, and the first end of the first inverter. The drain of the first power transistor is connected to the second end block of the second capacitor. The gate of the first power transistor is connected to the cathodes of the fifth diode and the sixth diode. The anodes of the fifth diode and the sixth diode are respectively connected to the IO1 terminal and the IO2 terminal of the first controller. The third end and the fourth end of the first inverter are respectively connected to the first end and the second end of the output port.

3. The intelligent UPS power control system according to claim 2, wherein The energy saving control module includes a second diode, a fourth diode, a second power transistor, and an eleventh power transistor; the first battery module includes a first battery pack; the second battery module includes a second battery pack; The cathode of the second diode is connected to the cathode of the fourth diode and the second end of the second capacitor. The anodes of the second diode and the fourth diode are respectively connected to the source of the second power transistor and the source of the eleventh power transistor. The drain of the second power transistor is connected to the first end of the first battery pack. The second end of the first battery pack is connected to the first end of the second battery pack and the drain of the eleventh power transistor. The second end of the second battery pack is connected to the charge and discharge module. The gates of the second power transistor and the eleventh power transistor are respectively connected to the IO1 terminal and the IO2 terminal of the first controller.

4. The intelligent UPS power control system according to claim 3, wherein, The charge and discharge module further includes a first inductor, a twelfth power transistor, a tenth power transistor, a seventh diode, and a fourth capacitor; The source of the tenth power transistor is connected to the cathode of the seventh diode and is connected to the source of the twelfth power transistor and the drain of the eighth power transistor through the first inductor. The drain of the twelfth power transistor is connected to the drain of the tenth power transistor and the first end of the first inverter and is connected to the anode of the seventh diode and the second end of the first inverter through the fourth capacitor. The gates of the twelfth power transistor and the tenth power transistor are respectively connected to the IO9 terminal and the IO10 terminal of the first controller.

5. The intelligent UPS power control system according to claim 2, characterized in that, The first detection module includes a first resistor, a second resistor, a first detection device, and a second detection device; The first end of the first detection device is connected to the first end of the second detection device and one end of the second resistor and is connected to the third end of the first rectifier through the first resistor. The other end of the second resistor is connected to the fourth end of the first rectifier. The second end of the first detection device and the second end of the second detection device are respectively connected to the IO11 terminal and the IO12 terminal of the first controller.

6. The intelligent UPS power control system according to claim 3, wherein The second detection module includes a third resistor, a fourth resistor, and a third detection device; One end of the third resistor is connected to the first end of the third detection device and is connected to the second end of the first battery pack through the fourth resistor. The other end of the third resistor is connected to the first end of the first battery pack. The second end of the third detection device is connected to the IO13 terminal of the first controller.

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