AC / DC inverter power supply system and device

Abstract

The present invention belongs to the technical field of AC / DC inverter power supply, and relates to an AC / DC inverter power supply system and device. The present invention analyzes the operating indicators of various detection equipment, battery health indicators and inverter operating indicators of the target AC / DC inverter power supply, which is conducive to timely discovering abnormal conditions of equipment such as detection equipment, batteries and inverters, and taking timely processing measures to ensure the accuracy of detection data, the safety of batteries and the security of inverter operation, and improve the operating stability and reliability of the target AC / DC inverter power supply. By analyzing the mains power status and battery status of the target AC / DC power supply, and obtaining the working mode of its inverter, the abnormal conditions of the mains power are discovered in time, so as to timely adopt the corresponding inverter working mode, ensure the normal operation of the mains power, understand the remaining power and health index of the battery, and formulate a reasonable charging and discharging strategy to avoid overcharging or discharging of the battery.

Description

Technical Field

[0001] The invention belongs to the technical field of AC / DC inverter power supply, and relates to an AC / DC inverter power supply system and device. Background Art

[0002] With the continuous advancement of power electronics technology, inverter power supply technology has developed rapidly. Inverter power supply can convert DC power into AC power, or convert AC power into DC power, providing stable and reliable power supply for various loads. AC / DC inverter power supply system is a key device for realizing renewable energy power generation and grid connection. Therefore, the detection and analysis system based on AC / DC inverter power supply has very important significance and role.

[0003] In the prior art, there are also some related solutions involving AC / DC inverter power supplies, for example, the invention patent application of the AC / DC power switching control system and method of the inverter with the Chinese patent publication number CN110365198B, in which the input end of the power switching control module is directly connected to the output end of the DC power module, that is, the output voltage signal of the DC power module is collected. And the output voltage signal is converted into a control signal for controlling the on or off state of the AC power module. The control system directly converts the output voltage signal of the DC power module into a control signal for controlling the working state of the AC power module, that is, directly uses the voltage signal with a larger power output by the DC power module to control the working state of the AC power module. Therefore, there is no need for a digital chip to perform signal acquisition and analysis and other processes, so there is no need to occupy the I / O interface of the digital chip, and there is no need to increase the driving power of the control signal through the driving circuit, which reduces the hardware cost.

[0004] Another invention patent application for an AC / DC power supply and control method with a Chinese patent publication number of CN118713231A, wherein the AC / DC power supply includes a DC bus, an AC bus, at least one three-phase AC output module, at least one DC output module, an AC / DC insulation detection module, an AC / DC parasitic detection module, and a fault determination module; the AC / DC insulation detection module is used to detect the output end and current of the DC output module and the three-phase and current of the three-phase AC output module; the AC / DC parasitic detection module is used to detect the residual voltage at the output end of the DC output module when the DC output module stops outputting, and send the output end voltage of the DC output module to the fault determination module; the AC / DC parasitic detection module is also used to detect the residual voltage at the output end of the three-phase AC output module when the three-phase AC output module stops outputting, and send it to the fault determination module. The present invention can realize insulation abnormality detection and loop parasitic detection of the DC output and AC output of the power supply, and the detection process is simple.

[0005] Although the above schemes have proposed some solutions for AC / DC inverter power supplies, they still have certain limitations: on the one hand, the existing schemes mainly focus on the simplicity and cost of the switching process of the AC / DC inverter power supply and the insulation abnormality detection and loop parasitic detection of the DC output and AC output of the power supply. However, the existing schemes ignore the detection and analysis of abnormal conditions of the detection equipment, batteries, inverters and other equipment of the AC / DC inverter power supply, and take timely treatment measures, thereby failing to ensure the accuracy of the detection data, the safety of the battery and the security of the inverter operation, and thus failing to improve the operating stability and reliability of the AC / DC inverter power supply.

[0006] On the other hand, the existing solutions lack detection and analysis of the AC / DC inverter power supply's mains power status and battery status, and thus cannot ensure that the battery of the AC / DC inverter power supply can meet the requirements of the working mode when an abnormality in the mains power is found, and thus cannot formulate a reasonable charging and discharging strategy. Summary of the invention

[0007] In view of this, in order to solve the problems raised in the above background technology, an AC / DC inverter power supply system and device are now proposed.

[0008] The purpose of the present invention can be achieved through the following technical solutions: The first aspect of the present invention provides an AC / DC inverter power supply system, including: an operation data acquisition module, an operation data analysis module, a status detection information acquisition module, a status detection information analysis module and an information library platform.

[0009] The operation data acquisition module is used to record the monitored AC / DC inverter power supply as the target AC / DC inverter power supply, and then monitor the various detection devices, batteries and inverters belonging to the target AC / DC inverter power supply to obtain the operation data of the various detection devices, battery operation data and inverter operation data of the target AC / DC inverter power supply.

[0010] The operation data analysis module is used to analyze the operation indicators of various detection devices, battery health indicators and inverter operation indicators of the target AC / DC inverter power supply, and then process the various detection devices, batteries and inverters of the target AC / DC inverter power supply accordingly.

[0011] The status detection information acquisition module is used to acquire the status detection information of the target AC and DC power sources, wherein the status detection information includes mains status detection information and battery status detection information.

[0012] The status detection information analysis module is used to analyze the mains status and battery status of the target AC / DC power supply, and then analyze the required working mode of the inverter of the target AC / DC power supply and determine its switching demand, where the working mode includes inverter mode, rectification mode and bypass mode.

[0013] The information base platform is used to store the operating data of each detection device of the target AC / DC inverter power supply, the battery operating data and the inverter operating data, as well as the mains status detection information and the battery status detection information, store the standard terminal voltage of the battery of the target AC / DC inverter power supply, and store the standard output waveform of the inverter of the target AC / DC inverter power supply.

[0014] A second aspect of the present invention provides an AC / DC inverter power supply device, comprising a processor and a memory for storing execution instructions of the processor, so as to implement an AC / DC inverter power supply system described in the present invention.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The present invention obtains the operating data of each detection device, battery operating data and inverter operating data of the target AC / DC inverter power supply, and analyzes the operating indicators of each detection device, battery health indicators and inverter operating indicators of the target AC / DC inverter power supply, which is conducive to timely discovering abnormal conditions of the detection equipment, battery, inverter and other equipment of the target AC / DC inverter power supply, and taking timely processing measures, thereby ensuring the accuracy of the detection data, the safety of the battery and the security of the inverter operation, and improving the operating stability and reliability of the target AC / DC inverter power supply.

[0016] 2. The present invention acquires the status detection information of the target AC / DC power supply, analyzes the mains power status and battery status of the target AC / DC power supply, and then analyzes the working mode of the inverter of the target AC / DC power supply. By analyzing the mains power status, the abnormal situation of the mains power is discovered in time, so that the corresponding inverter working mode is adopted in time to ensure the normal operation of the mains power. By analyzing the battery status, the remaining power and health index of the battery are understood, so as to formulate a reasonable charging and discharging strategy, avoid overcharging or discharging of the battery, and extend the battery life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of system module connection of the present invention.

[0019] Figure 2 It is a schematic diagram of the system process implementation of the present invention. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Example 1

[0022] See also Figure 1 As shown, the present invention provides an AC / DC inverter power supply system, and the specific modules are distributed as follows: an operation data acquisition module, an operation data analysis module, a state detection information acquisition module, a state detection information analysis module and an information library platform. Among them, the connection mode between the modules is: the operation data acquisition module is connected to the operation data analysis module, the operation data analysis module is connected to the state detection information acquisition module, the state detection information acquisition module is connected to the state detection information analysis module, and the information library platform is respectively connected to the operation data analysis module and the state detection information analysis module.

[0023] The operation data acquisition module is used to record the monitored AC / DC inverter power supply as the target AC / DC inverter power supply, and then monitor the various detection devices, batteries and inverters belonging to the target AC / DC inverter power supply to obtain the operation data of the various detection devices, battery operation data and inverter operation data of the target AC / DC inverter power supply.

[0024] It needs to be further explained that the system process implementation diagram is as follows: Figure 2 shown.

[0025] As a preferred feasibility example, the operating data of each detection device of the target AC / DC inverter power supply includes an accuracy deviation value, a response time and a temperature drift coefficient.

[0026] In a specific example, the detection devices include but are not limited to voltage detection devices, current detection devices, frequency detection devices, etc.

[0027] It should be further explained that the reasons for using the accuracy deviation value, response time and temperature drift coefficient as the operating data of each detection device of the target AC / DC inverter power supply are: (1) The accuracy deviation value directly reflects the difference between the measurement result and the true value. By monitoring the accuracy deviation value, it is possible to evaluate whether the performance of the detection equipment is stable, whether there are problems such as aging or damage, and so make timely adjustments or replacements.

[0028] (2) Response time is an important indicator to measure the speed at which a system reacts to changes in input signals. In an AC / DC inverter power supply, a fast response time means that the system can adapt to load changes more quickly and improve the dynamic performance of the power supply.

[0029] (3) The temperature drift coefficient reflects the degree to which component parameters change with temperature. In AC / DC inverter power supplies, temperature drift may cause instability in the output voltage or current of the power supply, affecting the performance and reliability of the power supply.

[0030] It needs to be further explained that the specific method of obtaining the precision deviation value of each detection device of the target AC / DC inverter power supply is: using the calibrated standard detection devices as a reference, comparing each measurement value of each detection device with the measurement standard value of each calibrated standard detection device, and obtaining the deviation value of each measurement value of each detection device and its corresponding measurement standard value, and further averaging them to obtain the average deviation value of the measurement value of each detection device and its corresponding measurement standard value, and record it as the precision deviation value of each detection device of the target AC / DC inverter power supply.

[0031] The specific method for obtaining the response time of each detection device of the target AC / DC inverter power supply is as follows: the response time refers to the interval time required from detecting the change signal to outputting the stable signal. The time points of each measurement value of each detection device of the target AC / DC inverter power supply from the start to the end are recorded, and then the end time point of each measurement value of each detection device of the target AC / DC inverter power supply is subtracted from the start time point of each measurement value of each detection device of the target AC / DC inverter power supply, and the difference is recorded as the interval time of each measurement value of each detection device of the target AC / DC inverter power supply, and the average is calculated to obtain the average interval time of the measurement values ​​of each detection device of the target AC / DC inverter power supply, which is recorded as the response time of each detection device of the target AC / DC inverter power supply.

[0032] The specific method for obtaining the temperature drift coefficient of each detection device of the target AC / DC inverter power supply is as follows: extracting the measured values ​​of each detection device of the target AC / DC inverter power supply under the historical temperature conditions within the set current time period from the information library platform, arranging them in order from large to small, obtaining the historical temperature conditions of each detection device of the target AC / DC inverter power supply with the measured value located in the middle position, recording them as the reference temperature conditions of each detection device of the target AC / DC inverter power supply, and subtracting the measured values ​​of each detection device of the target AC / DC inverter power supply under the historical temperature conditions from the measured values ​​under the reference temperature conditions, respectively, to obtain the power generation difference between the measured values ​​of each detection device of the target AC / DC inverter power supply under the historical temperature conditions and the measured values ​​under the reference temperature conditions, further dividing them with the temperature difference between the historical temperature conditions and the reference temperature conditions, and recording the obtained quotients as the temperature drift coefficients of each detection device of the target AC / DC inverter power supply, performing average processing on them, obtaining the average temperature drift coefficient of each detection device of the target AC / DC inverter power supply, and recording them as the temperature drift coefficient of each detection device of the target AC / DC inverter power supply.

[0033] The target AC / DC inverter power supply battery operation data includes terminal voltage, charge and discharge efficiency and internal resistance.

[0034] It should be further explained that the reasons for taking terminal voltage, charge and discharge efficiency and internal resistance as target AC / DC inverter power supply battery operation data are: (1) terminal voltage is a direct reflection of battery performance. By monitoring the terminal voltage, the operating status of the battery can be intuitively understood.

[0035] (2) Charge and discharge efficiency reflects the energy conversion efficiency of the battery during the charging and discharging process. High efficiency means that more electrical energy can be effectively stored and released, thereby improving the battery's efficiency and endurance.

[0036] (3) The internal resistance of a battery is one of the important factors that affect its performance. The greater the internal resistance, the greater the energy loss of the battery during the charging and discharging process, thus affecting the battery's endurance and service life.

[0037] It should be further explained that the specific method of obtaining the terminal voltage, charge and discharge efficiency and internal resistance of the battery of the target AC / DC inverter power supply is: using the deployed battery tester and battery internal resistance tester to directly measure the terminal voltage and internal resistance of the battery of the target AC / DC inverter power supply.

[0038] Extract the charging current of each charge of the battery of the target AC / DC inverter power supply within the set current time period from the information library platform , Charging voltage and charging time And the discharge current of each discharge , discharge voltage and discharge duration ,in , is the number of each charge and discharge, is the number of charge and discharge times, further calculated according to the formula Get the charging energy of each charge of the battery of the target AC / DC inverter power supply , according to the calculation formula Get the discharge energy of each discharge of the battery of the target AC / DC inverter power supply , analyze the charging and discharging efficiency of the battery of the target AC / DC inverter power supply .

[0039] The inverter operation data of the target AC / DC inverter power supply includes output waveform, output voltage stability and energy conversion efficiency.

[0040] It should be further explained that the reasons for taking the output waveform, output voltage stability and energy conversion efficiency as the target inverter operating data of the AC / DC inverter power supply are: (1) The output waveform of the inverter power supply is usually a sine wave. The output of the sine wave can ensure the normal operation of the power equipment and avoid equipment damage or performance degradation caused by waveform distortion.

[0041] (2) Stable output voltage can protect power equipment from voltage fluctuations and extend the service life of the equipment. The stability of output voltage is one of the important indicators for measuring power quality. Stable output voltage can ensure the stable operation of the power system, improve power utilization efficiency, and reduce energy waste.

[0042] (3) The energy conversion efficiency of an inverter refers to its ability to convert input DC power into AC power. High-efficiency inverters can reduce energy loss during the conversion process and improve energy utilization efficiency.

[0043] It should be further explained that the specific method of obtaining the output waveform, output voltage stability and energy conversion efficiency of the inverter of the target AC / DC inverter power supply is: using a deployed oscilloscope to directly detect the output waveform of the inverter of the target AC / DC inverter power supply.

[0044] Extract the output voltages of the inverter of the target AC / DC inverter power supply within the set current time period from the information base platform ,in , is the number of each output voltage, The output voltage stability of the target AC / DC inverter is analyzed as the output voltage of the inverter. ,in It is the allowable difference of the set output voltage.

[0045] The input power and output power of the inverter of the target AC / DC inverter power supply within the set monitoring interval are measured by using the deployed power meter, which are recorded as , analyze the energy conversion efficiency of the inverter of the target AC / DC inverter power supply .

[0046] The operation data analysis module is used to analyze the operation indicators of various detection devices, battery health indicators and inverter operation indicators of the target AC / DC inverter power supply, and then process the various detection devices, batteries and inverters of the target AC / DC inverter power supply accordingly.

[0047] As a preferred feasibility example, the specific analysis method of the operating indicators of each detection device of the target AC / DC inverter power supply includes: extracting the accuracy deviation value, response time and temperature drift coefficient of each detection device of the target AC / DC inverter power supply, respectively recorded as ,in , is the number of each testing equipment, To determine the number of detection devices, analyze the operating indicators of each detection device of the target AC / DC inverter power supply. ,in are respectively the permissible accuracy deviation value, response time threshold and permissible temperature drift coefficient of the detection equipment of the preset target AC / DC inverter power supply, is a natural constant.

[0048] As a preferred feasibility example, the battery health index of the target AC / DC inverter power supply is specifically analyzed by extracting the terminal voltage, charge / discharge efficiency and internal resistance of the battery of the target AC / DC inverter power supply, which are recorded as , analyze the battery health indicators of the target AC / DC inverter power supply ,in is the standard terminal voltage of the battery of the target AC / DC inverter power source extracted from the information library platform, is the allowable difference between the set terminal voltage and the standard terminal voltage, They are respectively the charge and discharge efficiency threshold and the internal resistance threshold of the battery of the preset target AC / DC inverter power supply.

[0049] It should be further explained that the allowable difference between the set terminal voltage and the standard terminal voltage can be set to 0.01 volt, which means that a deviation of one percent is allowed between the terminal voltage and the standard terminal voltage.

[0050] As a preferred feasibility example, the inverter operation index of the target AC / DC inverter power supply is specifically analyzed in the following manner: extracting the output waveform of the inverter of the target AC / DC inverter power supply, comparing it with the standard output waveform of the inverter of the target AC / DC inverter power supply stored in the information library platform, and obtaining the peak amplitude difference and the trough amplitude difference between the output waveform of the inverter of the target AC / DC inverter power supply and the standard output waveform, which are recorded as ,in , is the number of each peak, is the number of peaks, , is the number of each trough, is the number of troughs, and the output waveform conformity of the inverter of the target AC / DC inverter power supply is analyzed. ,in They are respectively the permissible peak amplitude difference and the permissible trough amplitude difference between the set output waveform and the standard output waveform.

[0051] It should be further explained that the allowable peak amplitude difference and the allowable trough amplitude difference between the set output waveform and the standard output waveform can be set to 0.01 cm and 0.01 cm respectively, which means that the peak amplitude and trough amplitude of the output waveform and the standard output waveform can deviate by one percent.

[0052] The output voltage stability and energy conversion efficiency of the inverter of the target AC / DC inverter power supply are extracted and recorded as .

[0053] Analyze the inverter operating indicators of the target AC / DC inverter power supply ,in They are respectively an output waveform conformity threshold, an output voltage stability threshold and an energy conversion efficiency threshold of an inverter of a preset target AC / DC inverter power supply.

[0054] As a preferred feasibility example, the processing of each detection device, battery and inverter of the target AC / DC inverter power supply specifically includes: extracting operation indicators of each detection device, battery health indicators and inverter operation indicators of the target AC / DC inverter power supply.

[0055] The operating indicators of each detection device of the target AC / DC inverter power supply are compared with the set device operating indicator threshold value. If the operating indicator of a detection device of the target AC / DC inverter power supply is less than the device operating indicator threshold value, the detection device of the target AC / DC inverter power supply is recorded as the detection device that needs maintenance of the target AC / DC inverter power supply, and further maintenance processing is performed on it.

[0056] The battery health index of the target AC / DC inverter power supply is compared with the set battery health index threshold. If the battery health index is less than the battery health index threshold, maintenance processing is performed on the battery of the target AC / DC inverter power supply.

[0057] The inverter operation index of the target AC / DC inverter power supply is compared with the set inverter operation index threshold value. If the inverter operation index is less than the inverter operation index threshold value, the inverter of the target AC / DC inverter power supply is maintained.

[0058] It should be further explained that the reason for processing the detection equipment, battery and inverter of the target AC / DC inverter power supply is: (1) The detection equipment is an important tool for monitoring the operating status of the inverter power supply and the mains status information, and its accuracy directly affects the judgment of the inverter power supply status and the mains status. Therefore, by calibrating and maintaining the detection equipment, potential faults of the detection equipment, such as sensor aging, poor line contact, etc., can be discovered in time, so as to deal with them in advance and avoid damage to the inverter power supply caused by the fault.

[0059] (2) The battery is an important component of the inverter power supply, and its performance directly affects the power supply capacity and stability of the inverter power supply. Regular battery charge and discharge testing and maintenance can extend the battery life and improve the reliability of the inverter power supply. It also helps prevent battery aging, short circuit and other problems that may occur during use.

[0060] (3) The inverter is a key device for converting DC power into AC power. Its performance directly affects the output quality and stability of the inverter power supply. Regular maintenance and optimization of the inverter can improve its conversion efficiency, reduce losses, and thus optimize the performance of the inverter power supply.

[0061] The present invention acquires the operating data of each detection device, the battery operating data and the inverter operating data of the target AC / DC inverter power supply, analyzes the operating indicators of each detection device, the battery health indicators and the inverter operating indicators of the target AC / DC inverter power supply, and is conducive to timely discovering abnormal conditions of the detection equipment, battery, inverter and other equipment of the target AC / DC inverter power supply, and taking timely processing measures, thereby ensuring the accuracy of the detection data, the safety of the battery and the security of the inverter operation, and improving the operating stability and reliability of the target AC / DC inverter power supply.

[0062] The status detection information acquisition module is used to acquire the status detection information of the target AC and DC power sources, wherein the status detection information includes mains status detection information and battery status detection information.

[0063] As a preferred feasibility example, the mains power status detection information of the target AC / DC power source includes the voltage, current and frequency monitored at each time point in the current monitoring time.

[0064] It should be further explained that the reason for using voltage, current and frequency as the mains power status detection information of the target AC / DC power supply is: (1) Voltage stability is one of the important indicators for measuring power quality. Stable voltage can ensure the normal operation of power equipment and avoid equipment damage or performance degradation caused by voltage fluctuations.

[0065] (2) The magnitude of the current is directly related to the safety of the power system. Excessive current may cause safety hazards such as line overload, heating, and even fire. Therefore, current detection can timely detect abnormal current conditions and take measures to ensure the safe operation of the power system. Changes in current can reflect the operating status of power equipment.

[0066] (3) The frequency of AC power has an important impact on the performance of power equipment. Frequency stability is the basis for the stable operation of the power system. When a power system fails or the load changes, the frequency may change. By detecting the frequency, abnormal conditions in the power system can be discovered in time, and measures can be taken to intervene and restore, ensuring the stable operation of the power system.

[0067] It needs to be further explained that the specific method of obtaining the voltage, current and frequency of each monitoring at the current monitoring time point of the AC / DC power supply of the target AC / DC power supply is: the voltage, current and frequency of each monitoring at the current monitoring time point of the AC / DC power supply of the target AC / DC power supply are obtained by directly measuring by each detection device of the target AC / DC power supply.

[0068] The battery status detection information of the target AC / DC power source includes the remaining power and the battery health index.

[0069] It should be further explained that the reasons for using the remaining power and the battery health index as the battery status detection information of the target AC / DC power supply are: (1) The remaining power directly reflects the current available power of the battery and is an important parameter of the battery status. By detecting the remaining power, the user can intuitively understand the remaining battery life and thus reasonably arrange the power usage plan.

[0070] (2) Battery health index is an important indicator to measure the health status of the battery, which reflects the degree of battery aging. As the battery is used and time passes, the battery's SOH will gradually decrease. By detecting SOH, we can understand the current health status of the battery and predict its future service life.

[0071] It needs to be further explained that the specific method of obtaining the remaining power of the battery and the battery health index of the target AC / DC power supply is: matching the terminal voltage of the battery of the target AC / DC power supply with the voltage-power curve of the battery of the target AC / DC power supply to obtain the remaining power of the battery of the target AC / DC power supply.

[0072] The remaining power of the battery of the target AC / DC power supply is divided by the standard power of the battery of the target AC / DC power supply extracted from the information library platform, and the obtained quotient is recorded as the battery health index of the battery of the target AC / DC power supply.

[0073] The status detection information analysis module is used to analyze the mains status and battery status of the target AC / DC power supply, and then analyze the required working mode of the inverter of the target AC / DC power supply and determine its switching demand, where the working mode includes inverter mode, rectification mode and bypass mode.

[0074] It should be further explained that the inversion mode refers to a mode in which the system converts a DC power supply into an AC power supply.

[0075] The rectification mode refers to the process of the system converting AC power into DC power. This mode is mainly used to charge the battery of the target AC / DC power source.

[0076] The bypass mode is a mode in which the system can bypass the inverter and directly use the AC power to supply power to the load when the inverter fails or needs maintenance.

[0077] As a preferred feasibility example, the mains power status of the target AC / DC power source is specifically analyzed in the following manner: extracting the voltage, current and frequency of each monitoring at the current monitoring time point of the mains power of the target AC / DC power source, and recording them as ,in , is the number of each monitoring. Analyze the mains power status index of the target AC and DC power supply for the number of monitoring times ,like , it means that the AC / DC power supply of the target is in the off state. , it means that the mains power state of the target AC / DC power supply is in a fluctuating state. Further analysis of the fluctuation coefficient of the mains power of the target AC / DC power supply ,in They are respectively the preset allowable fluctuating voltage, allowable fluctuating current and allowable fluctuating frequency. If the fluctuation coefficient of the AC / DC power supply of the target AC / DC power supply is greater than or equal to the set fluctuation coefficient threshold of the AC / DC power supply, the AC / DC power supply state of the target AC / DC power supply is recorded as a fault state; otherwise, the AC / DC power supply state of the target AC / DC power supply is recorded as a normal state.

[0078] As a preferred feasibility example, the battery status of the target AC / DC power source is specifically analyzed in the following manner: extracting the remaining power and battery health index of the battery of the target AC / DC power source, which are recorded as , analyze the battery status index of the target AC and DC power supply ,in The warning remaining power and reference remaining power of the battery of the set target AC and DC power sources and the battery health index threshold are respectively set.

[0079] like , it means that the battery status of the target AC / DC power supply is sub-healthy. , it means that the battery status of the target AC / DC power supply is low. , it means that the battery status of the target AC / DC power supply is normal. , it means that the battery status of the target AC / DC power supply is high power.

[0080] As a preferred feasibility example, the specific analysis method of the working mode of the inverter of the target AC / DC power supply includes: extracting the mains status and battery status of the target AC / DC power supply.

[0081] If the battery status of the target AC / DC power source is in a sub-healthy state, the battery status of the target AC / DC power source is fed back, and the required working mode of the inverter of the target AC / DC power source is recorded as the bypass mode.

[0082] If the AC power status of the target AC / DC power source is normal, and the battery status of the target AC / DC power source is low power or normal power, the required working mode of the inverter of the target AC / DC power source is recorded as the rectification mode.

[0083] If the mains status of the target AC / DC power source is normal and the battery status of the target AC / DC power source is high power, the required working mode of the inverter of the target AC / DC power source is recorded as bypass mode.

[0084] If the mains power status of the target AC / DC power source is a power-off state or a fault state, and the battery status of the target AC / DC power source is a low-battery state, the required working mode of the inverter of the target AC / DC power source is recorded as the bypass mode.

[0085] If the AC power status of the target AC / DC power supply is a power-off state or a fault state, and the battery status of the target AC / DC power supply is a normal power state or a high power state, the required working mode of the inverter of the target AC / DC power supply is recorded as the inverter mode.

[0086] It needs to be further explained that if the current working mode of the inverter of the target AC / DC power supply is not the required working mode of the inverter of the target AC / DC power supply, the switching requirement of the working mode of the inverter of the target AC / DC power supply is recorded as the required switching requirement, and then it is switched to obtain its required working mode, otherwise, its current working mode is maintained.

[0087] The information library platform is used to store the operating data of each detection device of the target AC / DC inverter power supply, the battery operating data and the inverter operating data, as well as the mains status detection information and the battery status detection information, store the standard terminal voltage of the battery of the target AC / DC inverter power supply, and store the standard output waveform of the inverter of the target AC / DC inverter power supply.

[0088] The present invention acquires the state detection information of the target AC / DC power supply, analyzes the mains power state and the battery state of the target AC / DC power supply, and then analyzes the working mode of the inverter of the target AC / DC power supply. By analyzing the mains power state, the abnormal situation of the mains power is discovered in time, so that the corresponding inverter working mode is adopted in time to ensure the normal operation of the mains power. By analyzing the battery state, the remaining power and health index of the battery are understood, so as to formulate a reasonable charging and discharging strategy, avoid overcharging or discharging of the battery, and extend the service life of the battery.

[0089] Example 2

[0090] A second aspect of the present invention provides an AC / DC inverter power supply device, comprising a processor and a memory for storing execution instructions of the processor, so as to implement an AC / DC inverter power supply system described in the present invention.

[0091] The above contents are merely examples and explanations of the concept of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the concept of the invention or exceed the scope defined by the present invention, they shall all fall within the protection scope of the present invention.

Claims

1. An AC / DC inverter power supply system, characterized in that: include: An operation data acquisition module is used to record the monitored AC / DC inverter power supply as the target AC / DC inverter power supply, and then monitor the detection equipment, battery and inverter belonging to the target AC / DC inverter power supply to obtain the operation data of each detection equipment, battery operation data and inverter operation data of the target AC / DC inverter power supply; An operation data analysis module is used to analyze the operation indicators of various detection devices, battery health indicators and inverter operation indicators of the target AC / DC inverter power supply, and then process the various detection devices, batteries and inverters of the target AC / DC inverter power supply accordingly; A status detection information acquisition module is used to acquire status detection information of a target AC / DC power supply, wherein the status detection information includes mains status detection information and battery status detection information; The state detection information analysis module is used to analyze the mains state and battery state of the target AC / DC power supply, and then analyze the required working mode of the inverter of the target AC / DC power supply and determine its switching demand, wherein the working mode includes inverter mode, rectifier mode and bypass mode; An information base platform, used to store the operating data of each detection device of the target AC / DC inverter power supply, the battery operating data and the inverter operating data, as well as the mains status detection information and the battery status detection information, store the standard terminal voltage of the battery of the target AC / DC inverter power supply, and store the standard output waveform of the inverter of the target AC / DC inverter power supply; The specific analysis method of the operating indicators of each detection device of the target AC / DC inverter power supply includes: The accuracy deviation, response time and temperature drift coefficient of each detection device of the target AC / DC inverter power supply are extracted and recorded as ,in , is the number of each testing equipment, To determine the number of detection devices, analyze the operating indicators of each detection device of the target AC / DC inverter power supply. ,in are respectively the permissible accuracy deviation value, response time threshold value and permissible temperature drift coefficient of the detection equipment of the preset target AC / DC inverter power supply, is a natural constant; The specific analysis method of the battery health index of the target AC / DC inverter power supply includes: Extract the terminal voltage, charge and discharge efficiency and internal resistance of the battery of the target AC / DC inverter power supply, which are recorded as , analyze the battery health indicators of the target AC / DC inverter power supply ,in is the standard terminal voltage of the battery of the target AC / DC inverter power source extracted from the information library platform, is the allowable difference between the set terminal voltage and the standard terminal voltage, They are respectively the charge and discharge efficiency threshold and the internal resistance threshold of the battery of the preset target AC / DC inverter power supply.

2. The AC / DC inverter power supply system according to claim 1, characterized in that: The operating data of each detection device of the target AC / DC inverter power supply includes accuracy deviation value, response time and temperature drift coefficient; The battery operation data of the target AC / DC inverter power supply includes terminal voltage, charge and discharge efficiency and internal resistance; The inverter operation data of the target AC / DC inverter power supply includes output waveform, output voltage stability and energy conversion efficiency; The mains power status detection information of the target AC / DC power source includes the voltage, current and frequency monitored at each time point in the current monitoring time; The battery status detection information of the target AC / DC power source includes the remaining power and the battery health index.

3. The AC / DC inverter power supply system according to claim 1, characterized in that: The inverter operation index of the target AC / DC inverter power supply is specifically analyzed in the following manner: The output waveform of the inverter of the target AC / DC inverter is extracted, and compared with the standard output waveform of the inverter of the target AC / DC inverter stored in the information library platform, and the peak amplitude difference and the trough amplitude difference between the output waveform of the inverter of the target AC / DC inverter and the standard output waveform are obtained, which are recorded as ,in , is the number of each peak, is the number of peaks, , is the number of each trough, is the number of troughs, and the output waveform conformity of the inverter of the target AC / DC inverter power supply is analyzed. ,in They are respectively the permissible peak amplitude difference and the permissible trough amplitude difference between the set output waveform and the standard output waveform; The output voltage stability and energy conversion efficiency of the inverter of the target AC / DC inverter power supply are extracted and recorded as ; Analyze the inverter operating indicators of the target AC / DC inverter power supply ,in They are respectively an output waveform conformity threshold, an output voltage stability threshold and an energy conversion efficiency threshold of the inverter of the preset target AC / DC inverter power supply.

4. The AC / DC inverter power supply system according to claim 1, characterized in that: The processing of the detection devices, batteries and inverters of the target AC / DC inverter power supply specifically includes: Extract the operating indicators of each detection device, battery health indicators and inverter operating indicators of the target AC / DC inverter power supply; Compare the operating indicators of each detection device of the target AC / DC inverter power supply with the set device operating indicator threshold value respectively; if the operating indicator of a detection device of the target AC / DC inverter power supply is less than the device operating indicator threshold value, the detection device of the target AC / DC inverter power supply is recorded as the detection device requiring maintenance of the target AC / DC inverter power supply, and further performs maintenance processing on it; Comparing the battery health index of the target AC / DC inverter power supply with the set battery health index threshold, and if the battery health index is less than the battery health index threshold, performing maintenance processing on the battery of the target AC / DC inverter power supply; The inverter operation index of the target AC / DC inverter power supply is compared with the set inverter operation index threshold value. If the inverter operation index is less than the inverter operation index threshold value, the inverter of the target AC / DC inverter power supply is maintained.

5. The AC / DC inverter power supply system according to claim 2, characterized in that: The mains power status of the target AC / DC power source, and its specific analysis method includes: Extract the voltage, current and frequency of each monitoring at the current monitoring time point of the AC / DC power supply of the target power supply, and record them as ,in , is the number of each monitoring. Analyze the mains power status index of the target AC and DC power supply for the number of monitoring times ,like , it means that the AC / DC power supply of the target is in the off state. , it means that the mains power state of the target AC / DC power supply is in a fluctuating state. Further analysis of the fluctuation coefficient of the mains power of the target AC / DC power supply ,in They are respectively the preset allowable fluctuating voltage, allowable fluctuating current and allowable fluctuating frequency. If the fluctuation coefficient of the AC / DC power supply of the target AC / DC power supply is greater than or equal to the set fluctuation coefficient threshold of the AC / DC power supply, the AC / DC power supply state of the target AC / DC power supply is recorded as a fault state; otherwise, the AC / DC power supply state of the target AC / DC power supply is recorded as a normal state.

6. The AC / DC inverter power supply system according to claim 5, characterized in that: The battery status of the target AC / DC power source is specifically analyzed in the following manner: Extract the remaining power and battery health index of the target AC / DC power supply battery, which are recorded as , analyze the battery status index of the target AC and DC power supply ,in The warning remaining power and reference remaining power of the battery of the set target AC and DC power sources and the battery health index threshold value are respectively; like , it means that the battery status of the target AC / DC power supply is sub-healthy. , it means that the battery status of the target AC / DC power supply is low. , it means that the battery status of the target AC / DC power supply is normal. , it means that the battery status of the target AC / DC power supply is high power.

7. The AC / DC inverter power supply system according to claim 5, characterized in that: The required working mode of the inverter of the target AC / DC power supply is specifically analyzed in the following manner: Extract the AC power status and battery status of the target AC / DC power source; If the battery status of the target AC / DC power source is in a sub-healthy state, the battery status of the target AC / DC power source is fed back, and the required working mode of the inverter of the target AC / DC power source is recorded as a bypass mode; If the mains power state of the target AC / DC power source is normal, and the battery state of the target AC / DC power source is low power state or normal power state, the required working mode of the inverter of the target AC / DC power source is recorded as the rectification mode; If the mains power state of the target AC / DC power source is normal, and the battery state of the target AC / DC power source is high power, the required working mode of the inverter of the target AC / DC power source is recorded as bypass mode; If the mains power state of the target AC / DC power source is a power-off state or a fault state, and the battery state of the target AC / DC power source is a low-battery state, the required working mode of the inverter of the target AC / DC power source is recorded as a bypass mode; If the AC power status of the target AC / DC power supply is a power-off state or a fault state, and the battery status of the target AC / DC power supply is a normal power state or a high power state, the required working mode of the inverter of the target AC / DC power supply is recorded as the inverter mode.

8. An AC / DC inverter power supply device, characterized in that: It comprises a processor and a memory for storing execution instructions of the processor, wherein the processor is configured to execute an AC / DC inverter power supply system as described in any one of claims 1 to 7.

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