Monitoring system for integrated wind, photovoltaic and storage power plant clusters

Abstract

Monitoring system for integrated wind, photovoltaic and storage power plant clusters, characterized in that it comprises: a device main body, a sensor unit, a protection unit, a first filter unit, a second filter unit, a collection unit, and a processor; wherein the sensor unit is provided on the device main body, wherein the sensor unit monitors an operating parameter of the device main body in real time and generates a corresponding voltage signal; wherein the protection unit is connected between the sensor unit and the collection unit and is connected in parallel to the collection unit to monitor the voltage signal, wherein the protection unit is grounded when the voltage signal exceeds a preset voltage threshold; wherein the first filter unit is connected between the sensor unit and the collecting unit to filter out noise waves in the voltage signal transmitted from the sensor unit to the collecting unit; wherein the collecting unit receives the voltage signal filtered by the first filter unit and transmits the voltage signal to the second filter unit; wherein the second filter unit is connected between the collecting unit and the processor to filter out noise waves in the voltage signal output from the collecting unit and transmit the filtered voltage signal to the processor.

Description

TECHNICAL FIELD

[0001] The present utility model relates to the technical field of monitoring and control systems for a power supply system, in particular a monitoring system for integrated wind, photovoltaic and storage power plant clusters. STATE OF THE ART

[0002] Against the backdrop of the globally active promotion of energy transformation and the profound response to climate change, the new energy industry has opened up unprecedented development opportunities. Among them, integrated wind, photovoltaic, and storage power plants are receiving increasing attention and prominence as an important development direction in the new energy field. As a comprehensive power generation facility integrating wind power, photovoltaics, and energy storage systems, the integrated wind, photovoltaic, and storage power plant demonstrates its unique advantages and values.

[0003] Through the wind turbine, the integrated integrated wind, photovoltaic, and storage power plant can effectively convert the wind energy widely available in nature into electricity. At the same time, photovoltaic solar panels can fully utilize the abundant resources of solar energy and directly convert sunlight into electricity. In addition, the introduction of energy storage devices enables the power plant to release the stored electricity at the right time when wind or light resources are insufficient and electricity demand is at its peak, thereby achieving stable supply and efficient use of electricity. This innovative way of energy utilization not only greatly improves the comprehensive utilization of energy efficiency, but also increases the stability and reliability of the power supply, so as to defuse the increasingly tight energy supply and demand and provide strong support.

[0004] With the acceleration of new energy system construction, the number of wind energy storage power plants, photovoltaic energy storage power plants, and integrated wind, photovoltaic, and energy storage power plants has increased rapidly. However, these new energy power plants are often located in remote areas with complex geography and harsh climatic conditions. In this extreme environment, power transmission and conversion power plant clusters, as well as other core equipment, must withstand large temperature differences, severe disturbances, and other challenges over the long term, severely testing their safe and stable operation. CONTENT OF THE PRESENT UTILITY MODEL

[0005] Existing monitoring technology has many shortcomings, such as poor monitoring system safety and reliability, poor noise immunity, and other issues, which seriously limit the stable operation of integrated wind, photovoltaic, and storage power plants and make it difficult to meet the rapid development requirements of the new energy industry. In view of the above-mentioned technical problems, the specific technical solutions of the utility model are as follows: A monitoring system for integrated wind, photovoltaic and storage power plant clusters includes the following: a device main body, a sensor unit, a protection unit, a first filter unit, a second filter unit, a collection unit, and a processor; wherein the sensor unit is provided on the device main body, wherein the sensor unit monitors an operating parameter of the device main body in real time and generates a corresponding voltage signal; wherein the protection unit is connected between the sensor unit and the collection unit and is connected in parallel to the collection unit to monitor the voltage signal, wherein the protection unit is grounded when the voltage signal exceeds a preset voltage threshold; wherein the first filter unit is connected between the sensor unit and the collecting unit to filter out noise waves in the voltage signal transmitted from the sensor unit to the collecting unit; wherein the collecting unit receives the voltage signal filtered by the first filter unit and transmits the voltage signal to the second filter unit; wherein the second filter unit is connected between the collecting unit and the processor to filter out noise waves in the voltage signal output from the collecting unit and transmit the filtered voltage signal to the processor.

[0006] Preferably, the protection unit comprises a protection capacitor, one end of the protection capacitor being connected in parallel to an input end of the collection unit, and the other end being grounded; the protection capacitor being capable of carrying a voltage corresponding to the maximum withstand voltage of the collection unit; wherein, when the voltage of the voltage signal is greater than or equal to a set voltage of the protection capacitor, the protection capacitor is turned on and grounded, and while, when the voltage of the voltage signal is lower than the set voltage, the protection capacitor remains isolated.

[0007] Preferably, the monitoring system for integrated wind, photovoltaic and storage power plant clusters is further provided with an indication unit, wherein the protection unit is connected to the indication unit, wherein the indication unit issues an alarm indication according to the signals output by a protection circuit.

[0008] Preferably, the indication unit comprises a buzzer or an indicator light.

[0009] Preferably, the first filter unit and the second filter unit are an RC filter circuit or a filter.

[0010] Preferably, the RC filter circuit comprises a filter resistor and a filter capacitor, wherein the filter resistor is connected in series with the filter capacitor, and wherein another end of the filter capacitor is grounded.

[0011] Preferably, the filter comprises a bandpass frequency range, wherein the filter serves to filter out the voltage signal that is not in the bandpass frequency range.

[0012] Preferably, the collection unit comprises an input end and an output end, wherein the input end of the collection unit is connected to the protection unit and the first filter unit, respectively, while the output end of the collection unit is connected to the second filter unit.

[0013] Preferably, the protection unit is connected in parallel to the input end of the collection unit, and wherein the first filter unit is connected in series to the input end of the collection unit, while the second filter unit is connected in series to the output end of the collection unit.

[0014] Preferably, the monitoring system further comprises: a display unit, wherein the display unit receives a data processing result output from the processor and displays the data processing result in real time.

[0015] The present utility model provides a monitoring system for integrated wind, photovoltaic, and storage power plant clusters, comprising a device main body, a sensor unit, a protection unit, a first filter unit, a collection unit, a second filter unit, and a processor. The protection unit is connected between the sensor unit and the collection unit and is connected in parallel with the collection unit to monitor the voltage signal transmitted from the sensor unit to the collection unit in real time and to be grounded when a preset voltage threshold is exceeded. The first filter unit and the second filter unit each filter the voltage signal transmitted to the collection unit to filter out the interference waves contained therein.The protection unit can block the overvoltage danger in time, the first filter unit and the second filter unit effectively filter out the interference waves of the signals, which effectively avoids the problem of poor safety and reliability of the existing monitoring system and low anti-interference ability. SHORT DESCRIPTION OF THE DRAWING

[0016] The present utility model is explained in more detail with reference to the attached drawings, which form a part of the present utility model, and the schematic embodiments of the present utility model and their descriptions serve to explain the present utility model and do not constitute an undue limitation of the present utility model. In the attached drawings: Fig. 1 shows a schematic representation of a construction of a monitoring system for integrated wind, photovoltaic and storage power plant clusters of the present utility model. Fig. 2 shows a schematic representation of an RC filter circuit according to a concrete embodiment of the present utility model.

[0017] List of reference symbols: 10: device main body; 20: sensor unit; 30: protection unit; 40: first filter unit; 50: collection unit; 60: second filter unit; 70: processor. DETAILED DESCRIPTION

[0018] The present utility model is described in more detail below in conjunction with the embodiments. While specific embodiments of the present utility model are shown, it should be understood that the present utility model can be implemented in various forms without being limited by the embodiments presented here. Rather, these embodiments serve to better understand the present utility model and are intended to convey the full scope of the present utility model to those skilled in the art.

[0019] It should be noted that the description and claims use specific terms to refer to specific components. It should be clear to those skilled in the art that they may refer to the same component using different terms. The description and claims do not use differences in nomenclature as a means to distinguish components, but rather differences in the function of the components. As mentioned in the description and claims, "comprising" or "including" is an open term and should be interpreted as "including, but not limited to." The following explanation in the description is a better way to implement the present utility model. However, the explanation serves the general principles of the description and is not intended to limit the scope of the present utility model.The scope of protection of the present utility model is defined in the appended claims.

[0020] As in Fig. 1 shows a schematic diagram of a monitoring system for integrated wind, photovoltaic, and storage power plant clusters of the present utility model. The monitoring system for integrated wind, photovoltaic, and storage power plant clusters includes a device main body 10, a sensor unit 20, a protection unit 30, a first filter unit 40, a collection unit 50, a second filter unit 60, and a processor 70.

[0021] In a specific embodiment, the sensor unit 20 is provided on the device main body 10. The sensor unit 20 may also be a high-frequency partial discharge sensor, an ultra-high-frequency partial discharge sensor, a Hall-effect current sensor, a voltage sensor, and the like. The sensors are provided independently of each other and can monitor an operating parameter of the device main body 10 in real time and convert it into a corresponding voltage signal. The sensor unit 20 is provided in a predetermined mounting area of ​​the device main body 10 by means of a screw connection, a snap-in attachment, or an integral structure.The mounting area can be configured on the device main body 10 according to the requirements for monitoring the operating parameters of the device main body 10 to ensure that the sensor unit 20 forms a stable physical connection and a signal interaction interface with the device main body 10.

[0022] Specifically, the voltage sensor is connected in parallel to a voltage measurement point of the device main body 10. When the voltage of the device main body 10 changes, the voltage at the two ends of the voltage sensor changes accordingly, and the voltage sensor converts the voltage change into a voltage signal in a proportional ratio.

[0023] The Hall-effect current sensor passes a wire to be monitored through a central hole in the Hall-effect current sensor. When current flows through the wire, a magnetic field is generated, and the Hall-effect current sensor uses the Hall effect to convert the strength of the magnetic field into a corresponding voltage signal.

[0024] The high-frequency partial discharge sensor detects high-frequency electromagnetic pulse signals generated within the device main body 10 due to insulation deterioration or electric field concentration. By detecting and analyzing the high-frequency signals, local discharge activity within the device main body 10 can be effectively identified, and the insulation condition and aging degree of the device main body 10 can be assessed. This allows for timely detection of insulation defects, preventing equipment damage or power outages due to insulation faults, and ensuring the stable operation of the power system.

[0025] The ultra-high frequency partial discharge sensor, which further expands the detection frequency range, focuses on detecting higher frequency partial discharge signals, as ultra-high frequency signals are often associated with more serious insulation faults or arc discharges. The ultra-high frequency partial discharge sensor is capable of providing more sensitive and accurate fault warning information, which can significantly improve the sensitivity and accuracy of fault detection and greatly assist preventive maintenance of the device main body 10.

[0026] In a specific embodiment, the protection unit 30 can be a protection capacitor. The protection capacitor forms a dynamic voltage discharge path by being connected in parallel between the input end of the collection unit 40 and ground. The rated voltage of the protection capacitor is equal to the maximum withstand voltage of the collection unit 40. When the voltage signal transmitted from the sensor unit 20 is normal, the capacitor is in a high-impedance state, and the voltage signal is fed directly into the collection unit 40 for sampling, thus avoiding shunting or attenuation of the voltage signal.When the voltage signal temporarily exceeds the preset voltage threshold when an abnormal situation such as lightning strike, switching surge, or harmonic superposition occurs, the dielectric of the protection capacitor is pierced, which is equivalent to a low-resistance path, and the surge energy is quickly introduced into the grounding system, thereby preventing high-amplitude voltage from damaging the high-precision analog-to-digital conversion circuit of the collection unit.

[0027] In a specific embodiment, the monitoring system for integrated wind, photovoltaic, and storage power plant clusters is further provided with an alert unit, wherein the protection unit is connected to the alert unit, and the alert unit issues an alarm alert according to the signals output by a protection circuit. The alert unit can dynamically adjust the alarm level depending on the type of protection circuit signal or the degree of abnormality. In the event of abnormal operating conditions such as overvoltage and overcurrent in the device, the local sound and light warning and the wireless communication function of the remote monitoring platform are synchronously activated to convert the abstract abnormal state of the circuit into a visual, acoustic, or data alert, and realize transparent real-time monitoring of the device's operating status.

[0028] In a specific embodiment, the notification unit may be a buzzer, a notification light, a display screen, or a vibration motor, etc. The present utility model does not limit the type and structure of the notification unit used, but can be adapted according to actual needs.

[0029] In a specific embodiment, the first filter unit 40 and the second filter unit 60 are an RC filter circuit or a filter, wherein the first filter unit 40 is connected between the sensor unit 20 and the collection unit 50 to filter out noise in the voltage signal transmitted from the sensor unit 20 to the collection unit 50, and the second filter unit 60 is connected between the collection unit 50 and the processor 70 to filter out noise in the voltage signal output by the collection unit 50 and transmit the filtered voltage signal to the processor 70. The first filter unit 40 and the second filter unit 60 perform a frequency domain analysis of the voltage signal, and if the frequency of the voltage signal is greater than the first frequency threshold or less than the second frequency threshold, the first filter unit and the second filter unit perform a filtering operation.The first filter unit 40 and the second filter unit 60 perform real-time acquisition and processing of the frequency components of the input signal based on the preset first frequency threshold and the second frequency threshold. Using band-stop filtering or band-pass filtering, interference signals that exceed a preset frequency range are filtered out, while components within the effective signal frequency range are retained. The two-stage synergistic processing of the first filter unit 40 and the second filter unit 60 establishes a double anti-interference barrier at the input end of the collection unit 50 and the input end of the processor 70.The first filter unit 40 performs pre-filtering before the voltage signal enters the collection unit 50, effectively suppressing contamination of the voltage signal by ambient noise and low-frequency drift and preventing quantitative amplification of the noise signal in the collection stage. The second filter unit 60 performs secondary filtering after the collection unit 50 to further eliminate circuit noise and aliasing introduced during the collection process. Using real-time frequency-domain analysis combined with a configurable threshold mechanism, the system can dynamically identify and filter out abnormal components that exceed a preset frequency band while accurately maintaining the effective signal frequency range using an adaptive bandpass / bandstop strategy.

[0030] In a concrete embodiment, as in Fig. As shown in Figure 2, the first filter unit 40 and the second filter unit 60 are RC filter circuits, and the RC filter circuits are commercially available RC filter circuits. This utility model does not limit the type and structure of the filter circuit used, but can be adapted according to actual needs. As shown in Fig.As shown in Figure 2, the RC filter circuit includes a filter resistor R1 and a filter capacitor C1, with the filter resistor R1 connected in series with the filter capacitor C1, and another end of the filter capacitor C1 grounded. The RC filter circuit is combined with an operational amplifier or a digital signal processor to perform dynamic frequency analysis. When the voltage signal enters the first filter unit 40 or the second filter unit 60, the RC filter circuit first decomposes the voltage signal in the frequency domain using a Fourier transform or a fast Fourier transform and identifies its main frequency components.If there is high-frequency interference in the signal whose frequency exceeds a first frequency threshold, or if there is low-frequency drift in the signal whose frequency is lower than a second frequency threshold, the filter unit triggers an adaptive filtering algorithm. The frequency range exceeding the threshold is attenuated or blocked by adjusting the capacitor-resistor parameters or by switching the filter mode. The first filter unit 40 and the second filter unit 60 are RC filter circuits that enable multi-stage interference suppression, from hardware-based filtering to intelligent frequency control.The first- and second-level RC filter units are based on a resistor-capacitor series structure, which forms the basic low-pass or high-pass characteristic and creates a physical barrier in the signal transmission path, initially filtering out extreme interference outside the fixed frequency range. In conjunction with the dynamic analysis module of the operational amplifier or digital signal processor, the system can perform a real-time Fourier transform of the input signal to accurately determine its spectral distribution characteristics. When high-frequency interference or low-frequency interference exceeding a preset threshold is detected, the adaptive algorithm achieves targeted frequency-domain attenuation by dynamically adjusting the equivalent parameters of the RC network.

[0031] In a specific embodiment, the first filter unit 40 and the second filter unit 60 are filters that have a bandpass frequency range, wherein the upper and lower limits of the bandpass frequency range are the first and second frequency thresholds, respectively. The filters are commercially available filters. The present utility model does not limit the type and structure of the filters used, but can be adapted according to actual needs. The first filter unit 40 and the second filter unit 60 are designed as bandpass filters that only pass signals within a specific frequency range by setting the first frequency threshold as the upper limit and the second frequency threshold as the lower limit, thereby effectively filtering out-of-band interference.Based on the preset first and second frequency thresholds, the signal passband range is dynamically limited to precisely filter out out-of-band high-frequency interference and low-frequency drift in the complex electromagnetic environment of the wind turbine, ensuring lossless transmission of the effective frequency range. The standardized design and customization capability of the commercially available filters take into account the reliability and flexibility of system deployment and, combined with the synergistic mechanism of two-stage filtering, significantly improve the signal-to-noise ratio and anti-interference capability of the signal link. Ultimately, the system supports high-precision diagnosis and preventive maintenance of equipment health, reduces the false alarm rate and operation and maintenance costs, and improves the intelligent operation level of the power plant cluster.

[0032] In a specific embodiment, the first frequency threshold and the second frequency threshold are dynamically adjusted according to the actual requirements.

[0033] In a specific implementation, the collection unit 50 receives the voltage signal filtered by the first filter unit 40, which has been filtered out of interference by the first filter unit 40, preserving only the components in the effective frequency range. The collection unit 50 performs an analog-to-digital conversion or signal conditioning on the incoming voltage signal, converts it into a digitized signal or an optimized analog signal, and then transmits it via an output end to a second filter unit. The second filter unit 60 also performs refined filtering of this signal to dynamically suppress industrial frequency interference, quantization noise, or ambient noise that may occur during transmission.The protection unit 30 is connected in parallel to the input end of the collection unit 50, and the first filter unit 40 is connected in series to the input end of the collection unit 50, while the second filter unit 60 is connected in series to the output end of the collection unit 50. The input end of the collection unit 50 is connected in parallel to the protection unit 30, the input end of the collection unit 50 is connected in series to the first filter unit 40 and the detection unit 50, and the output end is connected to the processor 70 via the second filter unit 60, which is connected in series, to form a multi-stage protection and voltage signal conditioning connection.The voltage signal output from the sensor unit 20 first passes through the first filter unit 40, which filters out high-frequency noise. The protection unit 30 is connected in parallel between the input end of the collection unit 50 and the ground. It has a high resistance under normal conditions, allowing the voltage signal to be transmitted to the collection unit 50 without loss. When the voltage signal is input and the voltage temporarily exceeds a set threshold due to a lightning strike, overvoltage, or harmonic superposition, the protection capacitor breaks down and conducts, quickly discharging the overvoltage energy to ground to prevent damage to the core analog-to-digital conversion circuit of the collection unit 50.After the collection unit 50 digitally samples and initially processes the filtered voltage signal, the industrial frequency interference or quantization noise introduced during transmission is further filtered out by the second filter unit 60 to ensure that the signals received by the processor 70 have a high signal-to-noise ratio, thereby improving the accuracy of diagnosis and device health prediction. This maintains the reliability of the standardized device and realizes the flexible configuration of the anti-interference strategy, ultimately enabling the monitoring system to consistently maintain optimal signal quality under complex operating conditions and provide a reliable database for device health diagnosis.At the same time, the risk of signal distortion due to fixed filter parameters is reduced and the all-weather monitoring capability of the integrated wind, photovoltaic and storage power plant is improved.

[0034] In a specific embodiment, processor 70 includes an integrated aggregation unit and an analysis unit. Processor 70 is responsible for receiving and processing the voltage signals from the collection unit after double filtering, and is also responsible for aggregating, integrating, and analyzing the data.

[0035] The aggregation unit uses parallel multi-channel processing technology to receive the double-filtered voltage signals from different collection units 50 in real time, and eliminates signal delays due to different transmission distances using an adaptive weighting algorithm to ensure temporal and spatial data consistency. At the same time, the integrated signal reconstruction function can generate virtual signals based on the data correlation of neighboring nodes when a specific collection channel is abnormal, thus ensuring monitoring continuity.

[0036] The analysis unit relies on the data provided by the aggregation unit and uses the algorithms and models integrated into the analysis unit to perform in-depth data mining and analysis operations. The analysis unit can monitor the device's operating status in real time, assess its health, and predict the device's future performance trend and potential failure risk through historical data analysis and pattern recognition technology. At the same time, the analysis unit has strong custom analysis capabilities, allowing the analysis strategy and model parameters to be flexibly adjusted to specific business requirements and application scenarios, providing more accurate and effective data support and decision-making basis.

[0037] Through the tight integration of the aggregation unit and the analysis unit, the processor achieves efficient data aggregation, integration, and analysis, providing solid technical support for the intelligent operation and maintenance of the integrated wind, photovoltaic, and storage power plant cluster. This highly integrated design not only improves data processing efficiency and analysis accuracy, but also effectively reduces system complexity and increases overall system performance and reliability.

[0038] In a specific embodiment, the processor 70 is also integrated with a wireless communication module that uses a multi-mode communication architecture and supports multiple communication protocols such as 4G / 5G cellular networks, LoRa (long-range radio), and Wi-Fi 6 (sixth-generation wireless local area network technology) to enable real-time remote transmission of monitoring data. The wireless communication module is equipped with a built-in adaptive signal switching algorithm that can automatically select the optimal communication mode according to the on-site network conditions to ensure data transmission reliability. The wireless communication module is also equipped with an encryption unit and a firewall function to ensure data security, while supporting remote updates to facilitate the expansion and maintenance of system functions.

[0039] In a specific embodiment, the monitoring system further comprises a display unit (not shown in the figure), the display unit receiving a data processing result output by the processor and displaying the data processing result in real time. The collection unit has an industrial-grade high-brush touchscreen combined with a distributed visualization engine for dynamically displaying the multidimensional analysis results output by the processor in real time. The display unit supports the simultaneous display of the real-time 3D topology map of the device cluster, the trend curve of key parameters, and the detailed analysis report for troubleshooting through the hardware-accelerated graphics rendering pipeline.At the same time, the AR auxiliary diagnostic function is integrated, allowing the device's QR code to be scanned via a mobile device to overlay the device's real-time operating data and historical fault records, and receive the system's intelligent recommendation for the overhaul program. The display unit has a modular design, can automatically switch the display mode according to the user role, and supports multi-terminal synchronization. Example

[0040] The monitoring system for integrated wind, photovoltaic, and energy storage clusters includes a device main body 10, a sensor unit 20, a protection unit 30, a first filter unit 40, a collection unit 50, a second filter unit 60, a processor 70, and a display unit (not shown in the figure). Wind energy, photovoltaic, and energy storage systems are integrated into the device main body 10. The sensor unit 20 is provided on the device main body 10. The sensor unit 20 includes an ultrasonic sensor, a high-frequency partial discharge sensor, an ultra-high-frequency partial discharge sensor, a voltage sensor, and a Hall-effect current sensor, which monitors the operating parameters such as voltage and current of the device main body in real time and converts these parameters into corresponding voltage signals for output.

[0041] The protection unit 30 is located between the sensor unit 20 and the collection unit 50, and is connected in parallel with the collection unit 50. The protection unit 30 consists of a protection capacitor. The protection capacitor is connected in parallel between the input end of the collection unit 50 and the ground, and the rated voltage of the protection capacitor is equal to the maximum withstand voltage of the collection unit 50. When the voltage signal temporarily exceeds the preset voltage threshold, the dielectric of the protection capacitor is pierced, which is equivalent to a low-resistance path, and the overvoltage energy is quickly introduced into the grounding system. In addition, the protection unit is equipped with a buzzer that triggers an alarm in the event of an overvoltage event.

[0042] The first filter unit 40 is connected between the sensor unit 20 and the collection unit 50 and uses an RC filter circuit to filter out high-frequency interference and low-frequency drift in the voltage signal. The first filter unit 60 is connected between the collection unit 50 and the processor 70 and also uses an RC filter circuit to further filter out noise waves in the signal.

[0043] The collection unit 50 is responsible for receiving the voltage signal filtered by the first filter unit and performing analog-to-digital conversion and signal conditioning. The converted digital signal is transmitted to the processor 70 for further analysis and processing. The processor 70 integrates an aggregation unit and an analysis unit. The aggregation unit uses parallel multi-channel processing technology to receive signals from various collection units in real time and eliminates signal delays through adaptive weighting algorithms. The analysis unit uses advanced algorithms and models to in-depth examine and analyze the stored data, monitor the operating status of the device main body in real time, assess its health, and predict future performance trends and potential failure risks.

[0044] The display unit receives the data processing result output from the processor and displays it in real time. It uses an industrial-grade high-brush touchscreen combined with a distributed visualization engine to dynamically display the three-dimensional topology map of the device cluster, the trend curve of key parameters, and the detailed analysis report of the fault diagnosis in real time.

[0045] By constructing a highly reliable intelligent monitoring system for integrated wind, photovoltaic, and storage power plant clusters, the present utility model effectively solves the problems of the existing system, such as insufficient plant status perception in complex environments, lack of fault prevention capability, and low diagnostic accuracy. It significantly improves the reliability and safety of power plant operation through the integrated use of multi-stage filtering and dynamic surge protection. Real-time signal collection and purification and data-driven analysis achieve early warnings and accurate localization of equipment failures.At the same time, the interactive display module visually presents operating parameters and diagnostic results, significantly optimizing the response speed and decision-making efficiency of operation and maintenance. This provides important technical support for the efficient, safe, and intelligent operation and maintenance of the new power plant system, ultimately reducing equipment failure rates and maintenance costs and improving energy utilization efficiency.

[0046] The above is only a better example of the utility model, not limiting the utility model in other forms, any person skilled in the art can modify the technical content of the above disclosure or redesign for the equivalent changes in equivalent embodiments, but not from the content of the utility model technical solutions, on the basis of the utility model technical substance of the above embodiments made any simple changes, However, any simple modification, equivalent change or redesign of the above embodiments on the basis of the technical substance of the utility model, without departing from the content of the technical program of the utility model, still belongs to the scope of protection of the utility model.

Claims

[1] Monitoring system for integrated wind, photovoltaic and storage power plant clusters, characterized by that it includes: a device main body, a sensor unit, a protection unit, a first filter unit, a second filter unit, a collection unit, and a processor; wherein the sensor unit is provided on the device main body, wherein the sensor unit monitors an operating parameter of the device main body in real time and generates a corresponding voltage signal; wherein the protection unit is connected between the sensor unit and the collection unit and is connected in parallel to the collection unit to monitor the voltage signal, wherein the protection unit is grounded when the voltage signal exceeds a preset voltage threshold; wherein the first filter unit is connected between the sensor unit and the collecting unit to filter out noise waves in the voltage signal transmitted from the sensor unit to the collecting unit; wherein the collecting unit receives the voltage signal filtered by the first filter unit and transmits the voltage signal to the second filter unit; wherein the second filter unit is connected between the collecting unit and the processor to filter out noise waves in the voltage signal output from the collecting unit and transmit the filtered voltage signal to the processor. [2] Monitoring system according to claim 1, characterized bythat the protection unit comprises a protection capacitor, wherein one end of the protection capacitor is connected in parallel to an input end of the collection unit, and wherein another end is grounded; wherein the protection capacitor can carry a voltage corresponding to the maximum withstand voltage of the collection unit; wherein, when the voltage of the voltage signal is greater than or equal to a set voltage of the protection capacitor, the protection capacitor is switched on and grounded, and while, when the voltage of the voltage signal is lower than the set voltage, the protection capacitor remains isolated. [3] Monitoring system according to claim 2, characterized by that it is further provided with an indication unit, wherein the protection unit is connected to the indication unit, wherein the indication unit issues an alarm indication in accordance with the signals output by a protection circuit. [4] Monitoring system according to claim 3, characterized bythat the warning unit includes a buzzer or an indicator light. [5] Monitoring system according to one of the preceding claims, characterized by that the first filter unit and the second filter unit are an RC filter circuit or a filter. [6] Monitoring system according to claim 5, characterized by that the RC filter circuit comprises a filter resistor and a filter capacitor, wherein the filter resistor is connected in series to the filter capacitor, and wherein another end of the filter capacitor is grounded. [7] Monitoring system according to claim 5 or 6, characterized by that the filter has a bandpass frequency range, wherein the filter serves to filter out the voltage signal that is not in the bandpass frequency range. [8] Monitoring system according to one of the preceding claims, characterized bythat the collection unit comprises an input end and an output end, wherein the input end of the collection unit is connected to the protection unit and the first filter unit, respectively, while the output end of the collection unit is connected to the second filter unit. [9] Monitoring system according to claim 8, characterized by that the protection unit is connected in parallel to the input end of the collection unit, and wherein the first filter unit is connected in series to the input end of the collection unit, while the second filter unit is connected in series to the output end of the collection unit. [10] Monitoring system according to one of the preceding claims, characterized by that it also includes: a display unit, wherein the display unit receives a data processing result output from the processor and displays the data processing result in real time.

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