Frequency converter health state monitoring system

Abstract

The utility model relates to a frequency converter health state monitoring system comprising a frequency converter which comprises a frequency converter detection device used for detecting the operation state of the frequency converter; an environmental data sensing device for generating environmental data indicating an environmental state of the frequency converter environment; the data acquisition device is used for acquiring real-time operation data of the frequency converter and receiving environment data; the storage device receives the real-time operation data and the environment data from the data acquisition device, stores the real-time operation data and the environment data, and stores historical operation data and historical environment data of the frequency converter and an operation data threshold range obtained through pre-calculation based on the historical operation data and the historical environment data; the programmable logic controller is connected to the data acquisition device to receive the real-time operation data and the environment data, receives the operation data threshold range corresponding to the environment data from the storage device, compares the real-time operation data with the operation data threshold range and outputs a comparison result, and the terminal equipment receives the comparison result and outputs the comparison result.

Description

TECHNICAL FIELD

[0001] The utility model relates to frequency converter technical field especially relates to frequency converter health state monitoring system that can real -time monitoring frequency converter health state. BACKGROUND

[0002] As a core component in the drive field, frequency converters are widely used in process manufacturing industries such as papermaking, steelmaking, etc. Their performance directly affects the stability and efficiency of the production line. Traditional maintenance mode of frequency converters only responds after failure occurs, which leads to maintenance lag, especially when the frequency converter fails, the production line may be completely shut down, causing huge economic losses and production delays.

[0003] Currently, the fault detection of frequency converters mainly relies on the self-checking mechanism of the equipment and post-alarm. When the frequency converter fails, the alarm information will be triggered to notify the maintenance personnel to troubleshoot and repair. This lagging reaction mechanism not only increases the maintenance cost, but also often cannot avoid production interruption and efficiency decline because the maintenance personnel can only intervene after the failure occurs.

[0004] The causes of frequency converter failure are diverse, which may be due to the deterioration of internal components or the adverse effects of the operating environment, such as high temperature, high humidity, low cooling efficiency, etc. However, in the existing technology, the maintenance strategy of the frequency converter often ignores the importance of environmental factors, relying only on internal component operating data for fault warning. This mechanism may not effectively predict failures under changing environmental conditions.

[0005] Therefore, an intelligent monitoring system that can monitor the operating state and environmental parameters of the frequency converter in real time, online judge and warn of faults is urgently needed to improve the reliability of the frequency converter, ensure the continuity and efficiency of the production process, and reduce potential economic losses. INVENTION CONTENTS

[0006] The frequency converter health state monitoring system provided by the embodiments of the present application aims to monitor the operating data and environmental condition parameters of the frequency converter in real time, evaluate the current state of the frequency converter using an intelligent data model constructed by analyzing historical operating data and environmental data of the frequency converter through artificial intelligence, and present the health state through a terminal device to facilitate the operator to online and intuitively monitor the health state of the frequency converter, visually and intuitively predict possible failures, and timely issue warnings through an alarm to avoid production interruption caused by frequency converter failure, reduce maintenance cost, and improve production efficiency and safety.

[0007] Therefore, the frequency converter health state monitoring system can conveniently and intuitively monitor the health state of the frequency converter in real time, online judge and warn the faults of the frequency converter, provide technical support for the management personnel to perform inspection and operation and maintenance, and guarantee the safe operation of the frequency converter.

[0008] According to an aspect of an embodiment of the present application, a frequency converter health state monitoring system is provided, which comprises: a frequency converter comprising a frequency converter detection device, the frequency converter detection device detecting the running state of the frequency converter to generate running data indicating the running state of the frequency converter; an environment data sensing device arranged in an environment where the frequency converter is located to sense the environment state of the environment and generate environment data indicating the environment state of the environment; a data acquisition device connected to the frequency converter and the environment data sensing device to acquire real-time running data of the frequency converter from the frequency converter and receive the environment data from the environment data sensing device; a storage device connected to the data acquisition device and receiving the real-time running data and the environment data from the data acquisition device and storing the real-time running data and the environment data, the storage device also storing historical running data and historical environment data of the frequency converter and a running data threshold range pre-calculated based on the historical running data and the historical environment data; a programmable logic controller connected to the data acquisition device and receiving the real-time running data and the environment data from the data acquisition device, the programmable logic controller being connected to the storage device and receiving the running data threshold range corresponding to the environment data from the storage device based on the environment data, comparing the real-time running data with the running data threshold range and outputting a comparison result indicating the health state of the frequency converter, and a terminal device in communication connection with the programmable logic controller via a communication device and receiving the comparison result from the programmable logic controller and outputting the comparison result.

[0009] In this way, by constructing a system capable of acquiring the running data of the frequency converter and the environment state in real time, the current state of the frequency converter is allowed to be evaluated and the health evaluation result is presented through the terminal device to facilitate the operating personnel to online monitor the health state of the frequency converter and visually and intuitively predict the possible faults, and the alarm can timely issue a warning to avoid production interruption caused by the frequency converter faults, reduce the maintenance cost, and improve the production efficiency and safety. Therefore, the system of the present application solves the problems of the self-checking mechanism and the post-alarm of the equipment.

[0010] In an embodiment according to the present application, the frequency converter can further comprise a controller connected to the frequency converter detection device and receiving the real-time running data of the frequency converter from the frequency converter detection device, and the data acquisition device is connected to the controller through a wired or wireless communication interface to receive the real-time running data from the controller.

[0011] It is known that the frequency converter detection device includes various sensors for detecting the operation data of the frequency converter, in such a way that all sensor data of the frequency converter can be obtained at one time, avoiding the inefficient way of polling each sensor one by one, accelerating the data acquisition and processing process, and improving the response speed of the system.

[0012] In embodiments according to the present application, the data acquisition device includes an Internet of Things box connected to the environmental data sensing device through a wired or wireless network to receive the environmental data of the frequency converter from the environmental data sensing device.

[0013] In such a way, remote, safe and reliable data transmission and monitoring of environmental data can be achieved.

[0014] In embodiments according to the present application, the data acquisition device, the storage device and the programmable logic controller are integrated in a server, which is connected to the frequency converter and the environmental data sensing device through a wired or wireless manner.

[0015] In embodiments according to the present application, the terminal device includes a monitoring terminal device for displaying the comparison result to the user through a display for the user to monitor the health status of the frequency converter, and a response terminal device for outputting different levels of alarm signals based on the deviation of the real-time operation data of the frequency converter indicated by the comparison result from the pre-calculated operation data threshold range, the different levels of alarm signals at least including a first level alarm signal prompting the user of the failure of the frequency converter and a second level alarm signal controlling the frequency converter to shut down.

[0016] In such a way, the comparison result of the health status of the frequency converter is displayed in real time through the monitoring terminal device, enhancing the user's intuitive perception and monitoring ability of the device status. At the same time, the response terminal device automatically outputs graded alarms according to the data deviation, realizing full-range safety protection from early warning to emergency shutdown, effectively avoiding the evolution of small faults into big accidents, greatly reducing the production loss caused by equipment failure, and improving the overall safety and operation efficiency of the system. This intelligent monitoring and response mechanism provides data support for preventive maintenance, ensuring long-term stable operation of the frequency converter.

[0017] In embodiments according to the present application, the frequency converter health status monitoring system further includes an alarm device, the alarm device being connected to the response terminal device and alarming in at least one of sound, vision and vibration when receiving the first level alarm signal from the response terminal device.

[0018] In embodiments according to the present application, the alarm device includes at least one of a sound alarm, a light alarm and a vibrator.

[0019] In such a way, the user can be timely reminded of the failure of the frequency converter.

[0020] In embodiments according to the present application, the terminal device is connected to the frequency converter and sends a second-level alarm signal to the frequency converter to shut down the frequency converter in response.

[0021] In this way, by sending a second-level alarm signal, the frequency converter can be immediately shut down, cutting off its power supply and output, preventing further spread of the fault, and protecting sensitive components inside the frequency converter and associated production line equipment from damage. This proactive safety measure greatly reduces production line downtime and maintenance costs caused by frequency converter failure, improving the reliability and production efficiency of production equipment.

[0022] In embodiments according to the present application, the operating data at least includes output voltage data, output current data and operating temperature data, and the environmental data at least includes humidity and temperature of the environment.

[0023] In embodiments according to the present application, the frequency converter detection device at least includes a voltage sensor, a current sensor and a temperature sensor, and the environmental data sensing device at least includes a temperature sensor and a humidity sensor.

[0024] In embodiments of the present application, the system that can be built can monitor the operating data and environmental conditions of the frequency converter in real time, and present the health assessment results through the terminal device to facilitate the operator to monitor the health status of the frequency converter online, and can visually and intuitively predict possible faults. The system solves the problems of self-checking mechanism and post-alarm of frequency converter equipment. BRIEF DESCRIPTION OF DRAWINGS

[0025] The drawings described herein are intended to provide further understanding of the present application, and form a part of the present application. The illustrative embodiments of the present application and their description serve to explain the present application. They are not intended to be an improper limitation on the present application. In the drawings:

[0026] Figure 1 is a schematic diagram of a frequency converter health status monitoring system according to embodiments of the present application.

[0027] Figure 2 shows a curve graph of the comparison results displayed by the terminal device according to embodiments of the present application.

[0028] BRIEF DESCRIPTION OF DRAWINGS

[0029] 10 frequency converter;

[0030] 11 frequency converter detection device;

[0031] 12 controller;

[0032] 13 environmental data sensing device;

[0033] 21 data acquisition device;

[0034] 22 storage device;

[0035] 23 programmable logic controller;

[0036] 30 terminal device;

[0037] 31 monitoring terminal device;

[0038] 32 response terminal device;

[0039] 40 alarm device. DETAILED DESCRIPTION

[0040] In order to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work should be within the scope of protection of the present application.

[0041] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or a chronological sequence. It should be understood that the signals thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units or units does not have to be limited to those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0042] As discussed in the foregoing background, the fault detection of the frequency converter mainly relies on the self-checking mechanism of the device and the post-alarm. When the frequency converter fails, the alarm information will be triggered to inform the maintenance personnel to troubleshoot and repair. This lagging reaction mechanism not only increases the maintenance cost, but also often cannot avoid production interruption and efficiency decline because the maintenance personnel can only intervene after the failure occurs.

[0043] Therefore, the concept of this utility model is to construct a system that can collect the operating data and environmental conditions of the frequency converter in real time, present the health status of the frequency converter through terminal equipment so that operators can monitor the health status of the frequency converter online, visually and intuitively predict possible faults, and issue timely warnings through an alarm to avoid production interruptions caused by frequency converter failures, reduce maintenance costs, and improve production efficiency and safety.

[0044] Figure 1 A schematic diagram of a frequency converter health status monitoring system according to an embodiment of this application is shown, such as... Figure 1 As shown, the inverter health status monitoring system includes: an inverter 10; an environmental data sensing device 13, installed in the environment where the inverter 10 is located to sense the environmental status and generate environmental data indicating the environmental status; a data acquisition device 21, connected to the inverter 10 and the environmental data sensing device 13 to acquire real-time operating data from the inverter 10 and receive environmental data from the environmental data sensing device 13; and a storage device 22, connected to the data acquisition device 21, receiving and storing real-time operating data and environmental data from the data acquisition device 21, and storing historical operating data and historical environmental data of the inverter, as well as pre-calculated data based on the historical operating data and historical environmental data. The system includes: a calculated operating data threshold range; a programmable logic controller (PLC) 23, which is connected to a data acquisition device 21 and receives real-time operating data and environmental data from the inverter 10; a storage device 22, which receives the operating data threshold range corresponding to the environmental data from the storage device 22; a comparison between the real-time operating data and the operating data threshold range; and a terminal device 30, which is connected to the PLC 23 via a communication device (not shown) and receives and outputs the comparison results from the PLC 23 so that the user can monitor the health status of the inverter based on the comparison results.

[0045] As an example, the frequency converter 10 may include a frequency converter detection device 11. The frequency converter detection device 11 can detect the operating status of the frequency converter 10 to generate operating data indicating the operating status of the frequency converter 10. For example, the frequency converter detection device 11 may include a voltage sensor for detecting the input and / or output voltage of the frequency converter, a current sensor for detecting the input and / or output current of the frequency converter, a temperature sensor for detecting the operating temperature of the frequency converter, and other types of sensors for detecting other operating parameters of the frequency converter.

[0046] In this document, as an example, the operating data of the frequency converter may include one or more of the following: input voltage data, input current data, output voltage data, output current data, switching frequency data, operating frequency, DC bus voltage, heat sink temperature, capacitor surface temperature, and frequency converter cabinet temperature.

[0047] As an example, the frequency converter may also include a controller 12. The controller 12 may be connected to the frequency converter detection device 11 and receive all real-time operating data of the frequency converter 10 from the frequency converter detection device 11. The data acquisition device 21 may be connected to the controller 12 via a wired or wireless communication interface to receive all real-time operating data of the frequency converter 10 from the controller 12.

[0048] In this way, the data acquisition device 21 does not need to be connected to all sensors within the inverter 10 to collect data; instead, it can obtain all operating data at once simply by connecting to the controller 12. Since there is no need to establish a separate connection with each sensor within the inverter 10, the complex wiring between the data acquisition device 21 and multiple sensors is reduced, simplifying the system installation and maintenance process, lowering installation costs, and reducing potential failure points. Furthermore, because the data acquisition device 21 is directly connected to the controller 12, it can acquire all sensor data at once, avoiding the inefficient method of polling each sensor individually, accelerating the data acquisition and processing flow, and improving the system's response speed. Since all operating data has already undergone preliminary processing and fusion within the controller, the data acquisition device 21 receives a processed data stream, which provides a more convenient and effective data foundation for subsequent intelligent analysis and fault early warning, helping to improve the accuracy of fault prediction and the timeliness of maintenance decisions.

[0049] As an example, the environmental data sensing device 13 may include a temperature sensor, a humidity sensor, a GPS sensor for measuring the latitude and longitude of the location, a laser altimeter sensor for measuring the altitude of the location, etc. As an example, environmental data may include ambient temperature, ambient humidity, longitude of the installation location, latitude of the installation location, altitude of the installation location, etc.

[0050] Artificial intelligence models can be used in advance to perform big data analysis on the historical operating data and historical environmental data of the frequency converter, thereby linking and integrating the historical operating data and historical environmental data to construct a health status prediction model. Then, the programmable logic controller 23 can calculate the operating data threshold range based on the historical operating data and historical environmental data of the frequency converter using the health status prediction model. In this paper, the operating data threshold range is the operating data trend range, such as... Figure 2 As shown, where Figure 2 The diagram illustrates the temperature change over time as operational data. The operational data in this application is not limited to temperature; it can also be voltage data, current data, etc.

[0051] More specifically, the historical operation data of the frequency converter and the historical environment data of the installation site can be associated and integrated to analyze the correlation between the historical operation data and the historical environment data, a health state prediction model can be constructed according to the correlation, the health state prediction model can include a plurality of data models corresponding to different environment data, and an operation data threshold range corresponding to the corresponding environment data can be calculated according to the health state prediction model. For example, by interpreting the time series historical operation data and historical environment data to master the data characteristic rules thereof, the correlation between the data characteristics is analyzed and the health state prediction model is constructed. Then, the programmable logic controller can use the verified model to perform online analysis on the real-time data of the running frequency converter, assess the state of the frequency converter in real time and predict and warn potential risks.

[0052] The historical operation data and the historical environment data of the frequency converter can be continuously updated by the stored real-time operation data and environment data, therefore, the operation data threshold range can be dynamically adjustable, so as to more accurately predict and warn potential risks.

[0053] As an example, the data acquisition device 21 can include an Internet of Things box connected to the environment data sensing device 13 through a wired or wireless network to receive the environment data of the frequency converter from the environment data sensing device 13. By integrating the Internet of Things box in the data acquisition device 21, remote and real-time transmission of the environment data of the frequency converter is realized, wiring is reduced, and data security is enhanced.

[0054] As an example, the data acquisition device 21, the storage device 22 and the programmable logic controller 23 can be integrated in the server 20, and the server 20 can be connected to the frequency converter 10 and the environment data sensing device 13 through a wired or wireless manner. This makes it possible to realize remote and efficient acquisition and remote monitoring of the operation data of the frequency converter 10 and its environment data.

[0055] As an example, the terminal device 30 can include a monitoring terminal device 31 communicatively connected to the programmable logic controller 23 via a wireless communication device or a wired communication device and receiving the comparison result from the programmable logic controller 23 and displaying the comparison result to a user through a display for the user to monitor the health state of the frequency converter, and a response terminal device 32 communicatively connected to the programmable logic controller 23 via a wireless communication device or a wired communication device and receiving the comparison result from the programmable logic controller 23 and outputting different levels of alarm signals based on the deviation of the real-time operation data of the frequency converter indicated by the comparison result from the pre-calculated operation data threshold range. As an example, the different levels of alarm signals can at least include a first level alarm signal prompting the user of the failure of the frequency converter and a second level alarm signal controlling the frequency converter to shut down.

[0056] As an example, the monitoring terminal device 31 can display a graph as shown in FIG. 6 to the user for the user to view whether the operating data to be monitored is within the operating data threshold range. As an example, the operating data threshold range can include an upper threshold trend line and a lower threshold trend line, and the area between the upper threshold trend line and the lower threshold trend line constitutes the operating data threshold range. If the monitored operating data is temperature, the upper threshold trend line and the lower threshold trend line can be the upper threshold temperature trend line and the lower threshold temperature trend line, and the area between the upper threshold temperature trend line and the lower threshold temperature trend line constitutes the temperature threshold range. Figure 2 As an example, the monitoring terminal device 31 can display a graph as shown in FIG. 6 to the user for the user to view whether the operating data to be monitored is within the operating data threshold range. As an example, the operating data threshold range can include an upper threshold trend line and a lower threshold trend line, and the area between the upper threshold trend line and the lower threshold trend line constitutes the operating data threshold range. If the monitored operating data is temperature, the upper threshold trend line and the lower threshold trend line can be the upper threshold temperature trend line and the lower threshold temperature trend line, and the area between the upper threshold temperature trend line and the lower threshold temperature trend line constitutes the temperature threshold range. Figure 2 As can be seen, the current temperature is within the operating data threshold range. Therefore, in the present application, the trend prediction can be displayed in an intuitive manner, and the analysis result can be presented intuitively.

[0057] As an example, the frequency converter health status monitoring system can further include an alarm device 40 connected to the response terminal device 32 and alarming in at least one of sound, vision and vibration when the first level alarm signal is received from the response terminal device 32. For example, the alarm device 40 can include a speaker, a siren sound alarm, a light alarm such as an LED alarm light, a vibrator or a combination thereof.

[0058] As an example, as indicated by the dashed arrow in FIG. 5, the response terminal device 32 can also be connected to the frequency converter 10 to send a second level alarm signal to the frequency converter 10 to shut down the frequency converter 10. By sending the second level alarm signal, the response terminal device 32 can immediately shut down the frequency converter 10, cut off its power supply and output, prevent the fault from further spreading, and protect the sensitive elements inside the frequency converter 10 and the associated production line equipment from damage. Such proactive safety measures greatly reduce the production line downtime and maintenance costs caused by frequency converter failure, and improve the reliability and production efficiency of the production equipment. Figure 1 In addition, after sending the second level alarm signal, the response terminal device 32 can also automatically record the time of the fault occurrence, the fault type and the related operating parameters, providing detailed data support for subsequent fault analysis and maintenance work. At the same time, it can also send a notification to the maintenance personnel, prompting them to carry out emergency maintenance, and ensure the quick recovery of the frequency converter 10 and the entire production line.

[0059] The frequency converter health status monitoring system of the present application also has at least the following advantages:

[0060] - The initiative of frequency converter early warning is enhanced, and passive maintenance caused by failure is reduced.

[0061] - Preventive maintenance of the frequency converter can be achieved, the risk of production stoppage is reduced, and economic losses are reduced through early warning of the fault.

[0062]

[0063] ​- Better understanding of the health of the frequency converter equipment, improved maintenance efficiency and production safety.

[0064] In the above-described embodiments of the present application, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0065] In several embodiments provided in the present application, it should be understood that the disclosed technical content can be implemented by other manners. Among them, the above-described device embodiments are only schematic, for example, the unit or the division of the unit is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the displayed or discussed each other can be through some interface, indirect coupling or communication connection between units or units, which can be electrical or other forms.

[0066] The unit or unit described as a separate component can be or can not be physically separated, and the component displayed as a unit or unit can be or can not be a physical unit or unit, that is, it can be located in one place, or it can be distributed to a plurality of network units or units. According to actual needs, part or all of the units or units can be selected to achieve the purpose of the embodiment scheme.

[0067] In addition, each functional unit or unit in each embodiment of the present application can be integrated in one processing unit or unit, or each unit or unit can exist physically, or two or more units or units can be integrated in one unit or unit. The above integrated unit or unit can be realized in the form of hardware or in the form of software functional unit or unit.

[0068] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principle of the present application, several improvements and refinements can be made, and these improvements and refinements should be considered as the protection scope of the present application.

Claims

1. A frequency converter health status monitoring system, characterized in that, The inverter health status monitoring system includes: The inverter (10) includes an inverter detection device (11) that detects the operating status of the inverter (10) to generate operating data indicating the operating status of the inverter (10); An environmental data sensing device (13) is installed in the environment where the inverter (10) is located to sense the environmental state of the environment and generate environmental data indicating the environmental state of the environment; A data acquisition device (21) is connected to the frequency converter (10) and the environmental data sensing device (13) to acquire real-time operating data of the frequency converter (10) from the frequency converter (10) and receive environmental data from the environmental data sensing device (13); The storage device (22) is connected to the data acquisition device (21) and receives the real-time operating data and the environmental data from the data acquisition device (21) and stores the real-time operating data and the environmental data. The storage device (22) also stores the historical operating data and historical environmental data of the inverter (10) and the operating data threshold range calculated in advance based on the historical operating data and historical environmental data. A programmable logic controller (23) is connected to the data acquisition device (21) and receives the real-time operating data and the environmental data from the data acquisition device (21). The programmable logic controller (23) is connected to the storage device (22) and receives the operating data threshold range corresponding to the environmental data from the storage device (22). The programmable logic controller (23) compares the real-time operating data with the operating data threshold range and outputs a comparison result indicating the health status of the frequency converter (10). The terminal device (30) is connected to the programmable logic controller (23) via a communication device and receives and outputs the comparison result from the programmable logic controller (23).

2. The inverter health status monitoring system according to claim 1, characterized in that, The inverter (10) further includes a controller (12), which is connected to the inverter detection device (11) and receives the real-time operating data of the inverter (10) from the inverter detection device (11). The data acquisition device (21) is connected to the controller (12) through a wired or wireless communication interface to receive the real-time operating data from the controller (12).

3. The inverter health status monitoring system according to claim 2, characterized in that, The data acquisition device (21) includes an Internet of Things (IoT) box, which is connected to the environmental data sensing device (13) via a wired or wireless network to receive the environmental data from the inverter (10) from the environmental data sensing device (13).

4. The inverter health status monitoring system according to claim 1, characterized in that, The data acquisition device (21), the storage device (22) and the programmable logic controller (23) are integrated in a server, which is connected to the frequency converter (10) and the environmental data sensing device (13) via wired or wireless means.

5. The inverter health status monitoring system according to claim 1, characterized in that, The terminal device (30) includes: Monitoring terminal equipment (31) is used to display the comparison results to a user via a display so that the user can monitor the health status of the frequency converter; and The response terminal device (32) outputs alarm signals of different levels based on the degree of deviation between the real-time operating data of the inverter indicated by the comparison result and the pre-calculated operating data threshold range. The alarm signals of different levels include at least a first-level alarm signal that prompts the user of the fault of the inverter (10) and a second-level alarm signal that controls the inverter (10) to shut down.

6. The inverter health status monitoring system according to claim 5, characterized in that, The inverter health status monitoring system further includes an alarm device (40); the alarm device (40) is connected to the response terminal device (32) and alarms by at least one of sound, vision and vibration when it receives the first level alarm signal from the response terminal device (32).

7. The inverter health status monitoring system according to claim 6, characterized in that, The alarm device (40) includes at least one of a sound alarm, a light alarm, and a vibrator.

8. The inverter health status monitoring system according to claim 5, characterized in that, The response terminal device (32) is connected to the frequency converter and sends a second-level alarm signal to the frequency converter to shut it down.

9. The inverter health status monitoring system according to claim 1, characterized in that, The operating data includes at least output voltage data, output current data, and operating temperature data, and the environmental data includes at least the humidity and temperature of the environment.

10. The inverter health status monitoring system according to claim 1, characterized in that, The inverter detection device (11) includes at least a voltage sensor, a current sensor and a temperature sensor, and the environmental data sensing device (13) includes at least a temperature sensor and a humidity sensor.

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