Comprehensive monitoring device and system for new energy station

Abstract

The utility model discloses a comprehensive monitoring device and a comprehensive monitoring system for a new energy station, which are used for carrying out electric power monitoring on the new energy station, and the comprehensive monitoring device for the new energy station comprises a data acquisition unit, a main control unit and a wireless transmission unit, the data acquisition unit is connected with an electric power sensor arranged in the new energy station and is used for acquiring an electric power parameter signal acquired by the electric power sensor and performing analog-to-digital conversion on the electric power parameter signal; the main control unit is respectively connected with the data acquisition unit and electric energy quality monitoring equipment for monitoring the electric energy quality of the new energy station, and is used for acquiring monitoring result information from the electric energy quality monitoring equipment and acquiring an electric power parameter signal from the data acquisition unit; and the main control unit is connected with the wireless transmission unit and is used for establishing wireless communication connection with a far-end upper computer through the wireless transmission unit. According to the technical scheme disclosed by the utility model, the monitoring capability of the new energy station can be enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to power monitoring technical field especially is related to a new energy station's comprehensive monitoring device and system. BACKGROUND

[0002] With the rapid development of renewable clean energy, the power generation system of new energy station is coupled with each other between the parts and components, which constitutes a complex multi-scale high-order nonlinear electric network, resulting in that the background harmonic noise of the system connected with the new energy station is more intensified under the condition of weak power grid, the system harmonic is amplified, and the quality of grid-connected current of the new energy station is more affected. At present, the sources that may cause harmonic or power quality problems in the new energy station include dynamic reactive power compensation device, wind turbine or photovoltaic inverter, power collection circuit and power grid background. Due to the large number of wind turbines or photovoltaic inverters, the power quality problem is amplified or changed due to the complex power collection circuit of the harmonic source access structure, and the change makes the power quality in the new energy station more complex. Therefore, it is necessary to diagnose the harmonic problem caused by the system coupling in the new energy station.

[0003] At present, when diagnosing the harmonic caused by the system coupling in the new energy station, the voltage, current and power quality of each node in the new energy station need to be monitored, the power parameter information at each node in the new energy station is obtained in time, and the monitoring result information output by the power quality monitoring equipment for monitoring the power quality of the new energy station is provided to support the diagnosis of the harmonic caused by the system coupling in the new energy station. However, when monitoring the power parameter information and the monitoring result information, the relevant personnel need to collect the power parameter signals from the power sensors at each node of the new energy station, collect the monitoring result information at the power quality monitoring equipment, and then collect the power parameter signals and the monitoring result information to perform harmonic diagnosis. However, when the scale of the new energy station is large, or when multiple new energy stations need to be diagnosed for harmonic, the above-mentioned method cannot monitor and collect the relevant parameters for harmonic diagnosis in time, resulting in low monitoring capability of the new energy station. UTILITY MODEL CONTENT

[0004] Therefore, the utility model provides a new energy station's comprehensive monitoring device and system, and mainly aims at solving the technical problem of insufficient monitoring capability of the new energy station.

[0005] To achieve the above-mentioned purpose, the utility model first provides a new energy station's comprehensive monitoring device for monitoring the power of the new energy station, the new energy station's comprehensive monitoring device includes data acquisition unit, main control unit and wireless transmission unit.

[0006] The data acquisition unit is connected with a power sensor arranged in the new energy station, and is configured to acquire an analog signal form power parameter signal collected by the power sensor, and perform analog-digital conversion on the power parameter signal to obtain the power parameter signal in a digital signal form;

[0007] The master control unit is connected with the data acquisition unit and power quality monitoring equipment configured to monitor power quality of the new energy station, and is configured to acquire monitoring result information from the power quality monitoring equipment and the power parameter signal from the data acquisition unit.

[0008] The master control unit is further connected with the wireless transmission unit, and is configured to establish a wireless communication connection between the master control unit and a remote host computer through the wireless transmission unit.

[0009] In an embodiment of the utility model, the comprehensive monitoring device of the new energy station further comprises an information display; the information display is connected with the master control unit, and is configured to acquire the monitoring result information and the power parameter signal, and display the monitoring result information and the power parameter signal.

[0010] In an embodiment of the utility model, the comprehensive monitoring device of the new energy station further comprises a storage device access device, and the storage device access device is configured to access a storage device from outside; the storage device access device is connected with the master control unit, and is configured to establish a communication connection between the storage device and the master control unit when the storage device access device accesses the storage device.

[0011] In an embodiment of the utility model, the comprehensive monitoring device of the new energy station further comprises a storage medium; the master control unit is connected with the storage medium, and is configured to send the monitoring result information and the power parameter signal to the storage medium for storage.

[0012] In an embodiment of the utility model, the electric power sensor includes voltage sensor and current sensor, the electric power parameter signal includes voltage signal and current signal, the data acquisition unit includes signal conditioning circuit and AD converter, the signal conditioning circuit is connected with voltage sensor and current sensor respectively, is used for obtaining voltage signal of voltage sensor output and current signal of current sensor output, and will voltage signal adjustment is the voltage signal of preset voltage grade, will current signal adjustment is the current signal of preset current grade, AD converter is connected with signal conditioning circuit, is used for obtaining preset voltage grade voltage signal and preset current grade current signal, and AD conversion is carried out to voltage signal and current signal, obtains digital signal form voltage signal and current signal, and will digital signal form voltage signal and current signal send to main control unit.

[0013] In an embodiment of the utility model, the information display is a serial port touch screen.

[0014] In an embodiment of the utility model, the comprehensive monitoring device of new energy station further includes power supply, the power supply is connected with main control unit, information display and wireless transmission unit respectively, and is used for power supply for main control unit, information display and wireless transmission unit.

[0015] In an embodiment of the utility model, the wireless transmission unit is a long-distance radio transmission unit.

[0016] In addition, in order to achieve the above object, the utility model also proposes a kind of comprehensive monitoring system of new energy station, the comprehensive monitoring system of new energy station includes the comprehensive monitoring device of new energy station as described above.

[0017] In an embodiment of the utility model, the comprehensive monitoring system of new energy station further includes monitoring terminal, the monitoring terminal is connected with the main control unit of the comprehensive monitoring device of new energy station, is used for receiving and storing the monitoring result information and the electric power parameter signal.

[0018] The utility model provides a kind of comprehensive monitoring device and system of new energy station, can be connected to the electric power sensor of each monitoring node in new energy station by data acquisition unit prepositioned, to obtain the electric power parameter signal collected to electric power sensor, and the electric power parameter signal collected is carried out analog-digital conversion, obtains the digital signal form electric power parameter signal that can be analyzed and handled by digital signal processing device;Further, by the power quality monitoring equipment for carrying out power quality monitoring in new energy station from main control unit, the monitoring result information output by power quality monitoring equipment is acquired, to monitor and summarize electric power parameter signal and monitoring result information at main control unit.Further, the above-mentioned monitoring result information and electric power parameter signal can be wirelessly sent to remote host computer by wireless transmission unit, to enable host computer to obtain monitoring result information and electric power parameter signal, provide data support for the harmonic diagnosis of host computer.The technical scheme of the application can significantly enhance the monitoring capability of new energy station.

[0019] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, can be implemented according to the content of specification, and in order to let the above and other purposes, features and advantages of the utility model can be more obvious and easy to understand, the following specific embodiment of the utility model is described. BRIEF DESCRIPTION OF DRAWINGS

[0020] The drawings described herein are used to provide further understanding of the utility model, constitute a part of the utility model, and the illustrative embodiment of the utility model and its explanation are used to explain the utility model, and do not constitute undue limitation on the utility model.In the drawings:

[0021] Figure 1 One of the structure schematic view of the comprehensive monitoring device of new energy station provided by the utility model embodiment is shown;

[0022] Figure 2 The structure schematic view of the comprehensive monitoring device of new energy station provided by the utility model embodiment is shown;

[0023] Figure 3 The structure schematic view of the comprehensive monitoring device of new energy station provided by the utility model embodiment is shown;

[0024] Figure 4 The structure schematic view of the comprehensive monitoring device of new energy station provided by the utility model embodiment is shown;

[0025] Figure 5 The structure schematic view of the comprehensive monitoring system of new energy station provided by the utility model embodiment is shown. DETAILED DESCRIPTION

[0026] Hereinafter, the utility model will be described in detail with reference to the drawings and in conjunction with embodiments. It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0027] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the specific implementation, structure, features and effects according to the utility model application will be described in detail as follows in conjunction with the drawings and preferred embodiments. In the following description, different 'an embodiment' or 'embodiments' do not necessarily refer to the same embodiment. In addition, the specific features, structures or characteristics in one or more embodiments can be combined in any suitable form.

[0028] The following will be described in conjunction with Figures 1 to 5 The comprehensive monitoring device and system of the new energy station according to some embodiments of the utility model are described.

[0029] As Figure 1 shown, one embodiment of the utility model proposes a comprehensive monitoring device of new energy station, which is used for power monitoring of new energy station. Wherein, the comprehensive monitoring device of new energy station includes data acquisition unit 200, main control unit 100 and wireless transmission unit 300.

[0030] Specifically, the data acquisition unit 200 is connected with the power sensor 700 arranged in the new energy station, which is used for acquiring the power parameter signal in the form of analog signal collected by the power sensor 700, and performing analog-digital conversion on the power parameter signal to obtain the power parameter signal in the form of digital signal. Here, the nodes that may generate harmonics or power quality problem sources in the new energy station include dynamic reactive power compensation device, wind turbine or photovoltaic inverter, power collection circuit and grid interconnection point, etc. A plurality of power sensors 700 can be arranged at the power input or output cable of the above nodes respectively, which are used for collecting the power parameter signal of the above nodes, and connecting each power sensor 700 with the data acquisition unit 200. Wherein, the power parameter signal can include voltage signal, current signal, etc.

[0031] Here, the power sensor 700 can output the power parameter signal in the form of collected analog signal such as voltage signal and current signal, and the data acquisition unit 200 can perform analog-digital conversion on the above signal after receiving it to obtain the power parameter signal in the form of digital signal.

[0032] Further, the master control unit 100 is connected with the data acquisition unit 200 and the power quality monitoring device 800 for monitoring the power quality of the new energy station, respectively, for obtaining the monitoring result information from the power quality monitoring device 800 and the power parameter signal from the data acquisition unit 200. The master control unit 100 can be a computer device with certain calculation function, such as a single-chip microcomputer or a digital signal processor, etc. Further, the power quality monitoring device 800 can be a power meter or the like for monitoring the power of the new energy station, which can send the monitoring result information in the form of digital signal to the master control unit 100.

[0033] Further, the master control unit 100 is connected with the data acquisition unit 200 and the power quality monitoring device 800 for monitoring the power quality of the new energy station, respectively, for obtaining the monitoring result information from the power quality monitoring device 800 and the power parameter signal from the data acquisition unit 200. The master control unit 100 can be a computer device with certain calculation function, such as a single-chip microcomputer or a digital signal processor, etc. Further, the power quality monitoring device 800 can be a power meter or the like for monitoring the power of the new energy station, which can send the monitoring result information in the form of digital signal to the master control unit 100.

[0034] It should be noted that the selection and internal circuit connection mode of the data acquisition unit, the master control unit and the wireless transmission unit can be determined according to the actual situation, and the embodiment is not limited specifically. In addition, the connection mode of each device can be determined according to the specific selection of the device, and the embodiment is not limited specifically. The circuit function of the comprehensive monitoring device of the new energy station provided in the embodiment is mainly realized through the circuit connection relationship between each circuit module, and does not depend on the program module in a certain circuit module. In addition, each circuit module in the comprehensive monitoring device of the new energy station can be realized through an analog circuit or a digital circuit, and for the circuit module which can implant a program module, the realization of the module function can be realized through the program module provided by the prior art.

[0035] The comprehensive monitoring device of the new energy station can be connected to the power sensor preset at each monitoring node in the new energy station through the data acquisition unit, so that the power parameter signal collected by the power sensor is acquired, and the acquired power parameter signal is subjected to analog-digital conversion, so that the power parameter signal in the form of digital signal analyzed and processed by the digital signal processing device is obtained; further, the monitoring result information output by the power quality monitoring equipment for monitoring the power quality of the new energy station is acquired through the main control unit, so that the power parameter signal and the monitoring result information are monitored and summarized at the main control unit; further, the monitoring result information and the power parameter signal can be wirelessly transmitted to the upper computer at the remote end through the wireless transmission unit, so that the upper computer can acquire the monitoring result information and the power parameter signal, and data support is provided for the upper computer for harmonic diagnosis. The technical scheme of the application can significantly enhance the monitoring capability of the new energy station.

[0036] In one embodiment, as shown in Figure 2 The information display 400 can be a serial port touch screen, and relevant staff can control the comprehensive monitoring device of the new energy station by operating the information display 400.

[0037] Further, the information display 400 is connected with the main control unit 100, and is used for acquiring the monitoring result information and the power parameter signal and displaying the monitoring result information and the power parameter signal. Further, the comprehensive monitoring device of the new energy station can further include a storage medium 600; the storage medium 600 can be a storage chip or a hard disk or the like storage device. Specifically, the main control unit 100 is connected with the storage medium 600, and is used for sending the monitoring result information and the power parameter signal to the storage medium 600 for storage. The technical scheme provided in the application can display the monitoring result information and the power parameter signal collected by the comprehensive monitoring device of the new energy station at the information display, so that relevant staff can monitor the relevant power information of the new energy station through the information display, and the monitoring capability of the comprehensive monitoring device of the new energy station is improved.

[0038] In one embodiment, as shown in Figure 2 The comprehensive monitoring device of the new energy station further includes a storage device access device 500, and the storage device access device 500 is used for accessing the storage device (not shown in the figure) in the external environment. The storage device can be an SD card, a flash memory chip or the like storage element.

[0039] Specifically, the storage device access apparatus 500 is connected with the master control unit 100, and is configured to establish a communication connection between the storage device and the master control unit 100 when the storage device access apparatus 500 accesses the storage device. Here, the master control unit 100 can send the collected monitoring result information and the power parameter signal to the storage device through the storage device access apparatus 500, so as to store the monitoring result information and the power parameter signal in the storage device. The technical scheme provided in the application can store the monitoring result information and the power parameter signal collected and aggregated in the storage device of the comprehensive monitoring device accessed to the new energy station, so that the relevant staff can obtain the storage device storing the monitoring result information and the power parameter signal, and the storage device can be subsequently accessed to other related devices for corresponding analysis work, thereby improving the operability of the comprehensive monitoring device of the new energy station.

[0040] In one embodiment, as shown in Figure 3 The comprehensive monitoring device of the new energy station further includes a power supply E; the power supply E can access an external power supply and convert the voltage level of the external power supply into a voltage level required for power supply of each component in the comprehensive monitoring device of the new energy station.

[0041] Specifically, the power supply E is connected with the master control unit 100, the wireless transmission unit 300 and the information display 400, respectively, and is configured to supply power to the master control unit 100, the wireless transmission unit 300 and the information display 400. The embodiments provided in the application can supply power to each component in the comprehensive monitoring device of the new energy station through the power supply, thereby improving the power supply stability of the comprehensive monitoring device of the new energy station.

[0042] In one embodiment, as shown in Figure 4 The power sensor includes a voltage sensor 710 and a current sensor 720; the power parameter signal includes a voltage signal and a current signal; and the data acquisition unit 200 includes a signal conditioning circuit 210 and an analog-to-digital converter 220. The voltage sensor 710 can be a voltage transformer, and the current sensor 720 can be a current transformer.

[0043] Specifically, the signal conditioning circuit 210 is connected with the voltage sensor 710 and the current sensor 720 respectively, for obtaining the voltage signal collected by the voltage sensor 710 and the current signal collected by the current sensor 720, and adjusting the voltage signal to a voltage signal of a preset voltage level and adjusting the current signal to a current signal of a preset current level. Here, the voltage level of the voltage signal collected by the voltage sensor 710 from the node can be several hundred volts or even higher, while the main control unit 100 can only accept a voltage of a lower voltage level such as 60 volts, at this time, the voltage level of the voltage signal collected by the voltage sensor 710 needs to be converted to the voltage level acceptable by the main control unit 100. At this time, the voltage signal collected by the voltage sensor 710 can be converted to the voltage signal of the voltage level acceptable by the main control unit 100 through the voltage transformer contained in the signal conditioning circuit 210. Similarly, the current collected by the current sensor 720 from the node can be tens of amperes or even higher, while the main control unit 100 can only accept a current signal of 5 amperes or 1 amperes, at this time, the current signal collected by the current sensor 720 needs to be converted to the current signal acceptable by the main control unit 100. At this time, the current signal collected by the current sensor 720 can be converted to the current signal acceptable by the main control unit 100 through the current transformer contained in the signal conditioning circuit 210.

[0044] Further, the analog-to-digital converter 220 is connected with the signal conditioning circuit 210, for obtaining the voltage signal of the preset voltage level and the current signal of the preset current level, and performing analog-to-digital conversion on the voltage signal and the current signal, to obtain the voltage signal in the form of a digital signal and the current signal in the form of a digital signal, and sending the voltage signal in the form of a digital signal and the current signal in the form of a digital signal to the main control unit 100. Here, the analog-to-digital converter 220 can be an AD7606 chip, which can perform analog-to-digital conversion on the analog signal collected after signal conditioning, and convert the signal to a signal meeting the sampling analysis requirements according to the requirements of the standard of "General Requirements for Electric Energy Quality Monitoring Equipment".

[0045] Further, the input end of the analog-to-digital converter 220 and the output end of the voltage transformer contained in the signal conditioning circuit 210 can be connected with a voltage conditioning circuit (not shown in the figure), which can receive the voltage signal of the secondary side of the voltage transformer and condition it into an output voltage signal meeting the requirements; further, the voltage conditioning circuit can include a voltage dividing circuit, a bias circuit, an operational amplifier circuit, a second-order filter circuit and a voltage follower circuit.

[0046] The technical scheme provided in the application can perform signal conditioning on the power parameter signal output by the power sensor based on a signal conditioning circuit, convert the power parameter signal into a power parameter signal that can be used by the master control unit, and improve the signal acquisition and monitoring capability of the comprehensive monitoring device of the new energy station.

[0047] In another aspect, the embodiment of the utility model provides a kind of comprehensive monitoring system of new energy station, and the comprehensive monitoring system of new energy station includes the comprehensive monitoring device of new energy station as described above.

[0048] In one embodiment, as shown in Figure 5 The comprehensive monitoring system of new energy station further includes monitoring terminal 900.

[0049] Specifically, the monitoring terminal 900 is connected to the master control unit 100 of the comprehensive monitoring device of new energy station, for receiving and storing the monitoring result information and the power parameter signal to perform harmonic monitoring.

[0050] Further, the comprehensive monitoring system of new energy station can realize the following functions in view of the demand of the power quality monitoring system of the new energy power generation system:

[0051] First, the power quality monitoring function: through the real-time monitoring of the voltage / current effective value, frequency, active power, reactive power, apparent power, power factor, voltage deviation, frequency deviation, harmonic voltage (including harmonic voltage distortion rate, each voltage harmonic content rate), harmonic current (including harmonic current distortion rate, each current harmonic content rate) and other parameters of the new energy power generation system, the on-line monitoring of the harmonic amplification caused by the system coupling in the new energy station, the evaluation and analysis of the power quality, the timely discovery and processing of the power quality problems, and the ensuring of the power quality to meet the requirements of the power grid. Then, the power quality analysis function: the statistics and analysis of the monitoring data, the generation of the power quality report, the analysis of the causes and trends of the power quality problems, and the provision of the reference basis for the subsequent power quality improvement. Further, the fault diagnosis and processing function: when the power quality problem is found, the automatic alarm is performed to ensure the stability and reliability of the system. Further, the remote monitoring and management function: through the internet technology, the remote monitoring and management of the new energy power generation system are realized, including the real-time monitoring, parameter adjustment, data analysis and other functions, the improvement of the manageability and maintainability of the system. Further, the data storage and management function: the storage and management of the monitoring data, including the real-time data and historical data, the ensuring of the reliability and integrity of the data, and the convenience of the subsequent data analysis and report generation. Finally, the measurement accuracy management function: the comprehensive monitoring system of the new energy station needs to have high analysis and calculation accuracy, and the comprehensive monitoring system of the new energy station is in accordance with the analysis accuracy of each power quality index specified in the standard DL / T 1028-2006 "Power Quality Test Analyzer Calibration Regulation".

[0052] The above-described embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as limiting the scope of the application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A comprehensive monitoring device of a new energy station, used for power monitoring of the new energy station, characterized in that, The comprehensive monitoring device of the new energy station comprises a data acquisition unit, a main control unit and a wireless transmission unit; The data acquisition unit is connected with power sensors arranged at monitoring nodes in the new energy station, is used to acquire voltage signals and current signals in analog signal form of the monitoring nodes collected by the power sensors, and is used to perform analog-digital conversion on the voltage signals and current signals to obtain the voltage signals and current signals in digital signal form, wherein the monitoring nodes comprise one or more of dynamic reactive power compensation devices, wind turbine generators, photovoltaic inverters, power collection lines and grid connection points, the power sensors comprise voltage transformers and current transformers, and the data acquisition unit comprises an analog-digital converter; The main control unit is connected with the data acquisition unit and power quality monitoring equipment used for power quality monitoring of the new energy station respectively, is used to acquire monitoring result information from the power quality monitoring equipment and the voltage signals and current signals from the data acquisition unit, and the power quality monitoring equipment comprises a power meter; The main control unit is also connected with the wireless transmission unit, is used to establish a wireless communication connection between the wireless transmission unit and a remote host computer, and is used to send the voltage signals, current signals and monitoring result information to the host computer, wherein the wireless transmission unit is an LORA communication module.

2. The integrated monitoring device for new energy station according to claim 1, characterized in that, The comprehensive monitoring device of the new energy station further comprises an information display; The information display is connected with the main control unit, is used to acquire the monitoring result information and the power parameter signals, and is used to display the monitoring result information and the power parameter signals.

3. The integrated monitoring device for new energy station according to claim 1, characterized in that, The comprehensive monitoring device of the new energy station further comprises a storage device access device, and the storage device access device is used to access external storage devices; The storage device access device is connected with the main control unit, is used to establish a communication connection between the storage device and the main control unit when the storage device access device accesses the storage device.

4. The integrated monitoring device for new energy station according to claim 1, characterized in that, The comprehensive monitoring device of the new energy station further comprises a storage medium; The main control unit is connected with the storage medium, is used to send the monitoring result information and the power parameter signals to the storage medium for storage.

5. The integrated monitoring device for new energy station according to claim 1, characterized in that, The power sensors comprise voltage sensors and current sensors; the power parameter signals comprise voltage signals and current signals; and the data acquisition unit comprises a signal conditioning circuit and an analog-digital converter; The signal conditioning circuit is connected with the voltage sensors and the current sensors respectively, is used to acquire the voltage signals output by the voltage sensors and the current signals output by the current sensors, and is used to adjust the voltage signals to voltage signals of a preset voltage level and adjust the current signals to current signals of a preset current level; and The signal conditioning circuit is connected with the voltage sensors and the current sensors respectively, is used to acquire the voltage signals output by the voltage sensors and the current signals output by the current sensors, and is used to adjust the voltage signals to voltage signals of a preset voltage level and adjust the current signals to current signals of a preset current level. The analog-digital converter is connected with the signal conditioning circuit, used for obtaining voltage signals of preset voltage levels and current signals of preset current levels, and performing analog-digital conversion on the voltage signals and the current signals to obtain the voltage signals and the current signals in the form of digital signals, and sending the voltage signals and the current signals in the form of digital signals to the master control unit.

6. The integrated monitoring device for new energy station according to claim 2, characterized in that, The information display is a serial touch screen.

7. The integrated monitoring device for new energy station according to claim 2, characterized in that, The comprehensive monitoring device of the new energy station further comprises a power supply; The power supply is connected with the master control unit, the information display and the wireless transmission unit respectively, and used for supplying power for the master control unit, the information display and the wireless transmission unit. 8.The integrated monitoring device of the new energy station according to claim 1, characterized in that, The wireless transmission unit is a long-distance radio transmission unit.

9. A comprehensive monitoring system for a new energy station, characterized in that, The comprehensive monitoring system of the new energy station comprises the comprehensive monitoring device of the new energy station according to any one of claims 1 to 8.

10. The integrated monitoring system of a new energy station according to claim 9, characterized in that, The comprehensive monitoring system of the new energy station further comprises a monitoring terminal; The monitoring terminal is connected with the master control unit of the comprehensive monitoring device of the new energy station, and used for receiving and storing the monitoring result information and the power parameter signals.

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