CN111157829A - Electric energy quality monitoring system suitable for different enterprises - Google Patents
Electric energy quality monitoring system suitable for different enterprises Download PDFInfo
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- CN111157829A CN111157829A CN202010128345.0A CN202010128345A CN111157829A CN 111157829 A CN111157829 A CN 111157829A CN 202010128345 A CN202010128345 A CN 202010128345A CN 111157829 A CN111157829 A CN 111157829A
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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Abstract
The invention relates to the technical field of power quality monitoring, in particular to a power quality monitoring system suitable for different enterprises. The utility model provides an electric energy quality monitoring system suitable for different enterprises, includes electric energy data acquisition module, electric energy quality monitoring center, electric energy quality calculation module, electric energy quality analysis module, electric energy quality data deposit module and communication module. The invention has the advantages that: the management efficiency is effectively improved, the management cost is reduced, reliable decision support is provided, and the scientization, informatization and modernization of power quality management are realized; all data are informationized and intelligentized through the communication module, and data analysis is carried out on different electric energy qualities required by different enterprises through intelligent data analysis, so that the accuracy of electric energy quality calculation analysis is improved.
Description
Technical Field
The invention relates to the technical field of power quality monitoring, in particular to a power quality monitoring system suitable for different enterprises.
Background
The issue of power quality has been addressed for a long time, in the early days of power system development! The power load is simple in composition and mainly comprises linear loads such as a synchronous motor, an asynchronous motor and various lighting devices, so that indexes for measuring the quality of electric energy are simple, the indexes mainly comprise frequency offset and voltage offset, and the nonlinear power electronic devices and devices are widely applied to modern industry along with the development of power electronic technology since 20 th century and 80 th century. Meanwhile, in order to solve the problems existing in the self development of the power system, the direct current transmission and FACTS technologies are continuously put into practical engineering application! The speed regulating motor and the reactive power compensation capacitor are also put into operation in large quantities. The operation of these devices causes increasingly severe voltage and current waveform distortion in the grid and harmonic levels rise. Further, when an impact or fluctuating load such as an arc furnace, a large rolling mill, an electric locomotive, etc. is operated, not only a large amount of harmonics but also power quality problems such as voltage fluctuation, flicker, three-phase imbalance, etc. are generated. On the other hand, with the continuous popularization of various complex, precise and power quality-sensitive electric devices, people have higher and higher requirements on power quality, and thus power quality becomes a hot spot of current research.
However, the qualified power quality is considered by the existing equipment manufacturer to be the requirement that the power supply characteristics completely meet the normal design working conditions of the electrical equipment, but in fact, the requirements of different manufacturers and different equipment on the power supply characteristics may be far away, so that a power quality monitoring system capable of trying different manufacturers and different equipment is needed.
Disclosure of Invention
The invention aims to provide an electric energy quality monitoring system suitable for different enterprises so as to overcome the defects in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a power quality monitoring system suitable for different enterprises comprises a power data acquisition module, a power quality monitoring center, a power quality calculation module, a power quality analysis module, a power quality data storage module and a communication module;
the electric energy data acquisition module is used for monitoring various electric energy indexes of the terminal and transmitting the data to the electric energy quality monitoring center;
the power quality monitoring center is used for controlling the operation of the monitoring device and carrying out centralized supervision and management on the power quality indexes of the whole network;
the electric energy quality calculation module receives high sampling rate signals from one or more electric energy data acquisition modules according to the IEC61850-9-2 standard, performs analog-to-digital conversion on the signals, outputs current digital signals for electric energy quality data processing, and obtains real-time values and statistical values of various electric energy quality indexes through calculation;
the electric energy quality analysis module is used for carrying out simulation analysis on the monitored data based on the real-time value and the statistical value of the electric energy quality calculation module, finishing the release of electric energy quality information and storing the electric energy quality information to the electric energy quality data storage module;
the electric energy quality data storage module is used for storing the electric energy quality data of the electric energy data acquisition module and the electric energy quality analysis module;
the communication module, when electric energy data acquisition module, electric energy quality analysis module, electric energy quality calculation module operating condition are unusual, can judge the alarm type automatically, with alarm signal transmission to communication module, send to supervisory personnel by communication module, the suggestion supervisory personnel takes corresponding measure to be preferred the one end of axis of rotation is connected with the rotating electrical machines, installs the rotating electrical machines mounting bracket on the thermoplastic case shrouding of having installed rotating electrical machines one side, rotating electrical machines fixed mounting is on the rotating electrical machines mounting bracket.
Preferably, the electric energy data acquisition module comprises a plurality of electronic transformers, an external power supply is arranged outside each electronic transformer, and the electronic transformers are provided with running state monitoring functions.
Preferably, the communication module is sequentially connected with an input module and an output module, and the input module and the output module are connected with an electric energy quality data acquisition module.
Preferably, the electric energy quality calculation module includes an acquisition module and a conversion module, the acquisition module acquires all electric energy data acquisition and data formats through the monitoring data access interface, and the conversion module is configured to convert the acquired real-time data into current digital information and output the current digital information.
The invention has the beneficial effects that: aiming at monitoring the power quality of various enterprises, the invention can effectively improve the management efficiency, reduce the management cost, provide reliable decision support and realize the scientization, informatization and modernization of power quality management; all data are informationized and intelligentized through a communication module, and data analysis is carried out on different electric energy qualities required by different enterprises through intelligent data analysis, so that the accuracy of electric energy quality calculation analysis is improved; each electronic transformer has an operation state monitoring function, and data loss caused by the fact that faults of a certain electronic transformer are not found in time is avoided.
Drawings
Fig. 1 is a schematic structural diagram of a power quality monitoring system applicable to different enterprises according to the present invention;
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1, the present embodiment is a power quality monitoring system suitable for different enterprises, and is characterized in that: the system comprises an electric energy data acquisition module, an electric energy quality monitoring center, an electric energy quality calculation module, an electric energy quality analysis module, an electric energy quality data storage module and a communication module;
the electric energy data acquisition module is used for monitoring various electric energy indexes of the terminal and transmitting the data to the electric energy quality monitoring center;
the power quality monitoring center is used for controlling the operation of the monitoring device and carrying out centralized supervision and management on the power quality indexes of the whole network;
the electric energy quality calculation module receives high sampling rate signals from one or more electric energy data acquisition modules according to the IEC61850-9-2 standard, performs analog-to-digital conversion on the signals, outputs current digital signals for electric energy quality data processing, and obtains real-time values and statistical values of various electric energy quality indexes through calculation;
the electric energy quality analysis module is used for carrying out simulation analysis on the monitored data based on the real-time value and the statistical value of the electric energy quality calculation module, finishing the release of electric energy quality information and storing the electric energy quality information to the electric energy quality data storage module;
the electric energy quality data storage module is used for storing the electric energy quality data of the electric energy data acquisition module and the electric energy quality analysis module;
and the communication module can automatically judge the alarm type when the working states of the electric energy data acquisition module, the electric energy quality analysis module and the electric energy quality calculation module are abnormal, transmit the alarm signal to the communication module, and send the alarm signal to a supervisor by the communication module to prompt the supervisor to take corresponding measures.
The electric energy data acquisition module comprises a plurality of electronic transformers, an external power supply is arranged outside each electronic transformer, and the electronic transformers are provided with running state monitoring functions.
The communication module is sequentially connected with an input module and an output module, and the input module and the output module are connected with an electric energy quality data acquisition module.
The electric energy quality calculation module comprises an acquisition module and a conversion module, wherein the acquisition module acquires all electric energy data acquisition and data formats through a monitoring data access interface, and the conversion module is used for converting the acquired real-time data into current digital information and outputting the current digital information.
Aiming at monitoring the power quality of various enterprises, the invention can effectively improve the management efficiency, reduce the management cost, provide reliable decision support and realize the scientization, informatization and modernization of power quality management; all data are informationized and intelligentized through a communication module, and data analysis is carried out on different electric energy qualities required by different enterprises through intelligent data analysis, so that the accuracy of electric energy quality calculation analysis is improved; each electronic transformer has an operation state monitoring function, and data loss caused by the fact that faults of a certain electronic transformer are not found in time is avoided.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (4)
1. The utility model provides an electric energy quality monitoring system suitable for different enterprises which characterized in that: the system comprises an electric energy data acquisition module, an electric energy quality monitoring center, an electric energy quality calculation module, an electric energy quality analysis module, an electric energy quality data storage module and a communication module;
the electric energy data acquisition module is used for monitoring various electric energy indexes of the terminal and transmitting the data to the electric energy quality monitoring center;
the power quality monitoring center is used for controlling the operation of the monitoring device and carrying out centralized supervision and management on the power quality indexes of the whole network;
the electric energy quality calculation module receives high sampling rate signals from one or more electric energy data acquisition modules according to the IEC61850-9-2 standard, performs analog-to-digital conversion on the signals, outputs current digital signals for electric energy quality data processing, and obtains real-time values and statistical values of various electric energy quality indexes through calculation;
the electric energy quality analysis module is used for carrying out simulation analysis on the monitored data based on the real-time value and the statistical value of the electric energy quality calculation module, finishing the release of electric energy quality information and storing the electric energy quality information to the electric energy quality data storage module;
the electric energy quality data storage module is used for storing the electric energy quality data of the electric energy data acquisition module and the electric energy quality analysis module;
and the communication module can automatically judge the alarm type when the working states of the electric energy data acquisition module, the electric energy quality analysis module and the electric energy quality calculation module are abnormal, transmit the alarm signal to the communication module, and send the alarm signal to a supervisor by the communication module to prompt the supervisor to take corresponding measures.
2. The power quality monitoring system applicable to different enterprises according to claim 1, characterized in that: the electric energy data acquisition module comprises a plurality of electronic transformers, an external power supply is arranged outside each electronic transformer, and the electronic transformers are provided with running state monitoring functions.
3. The power quality monitoring system applicable to different enterprises according to claim 1, characterized in that: the communication module is sequentially connected with an input module and an output module, and the input module and the output module are connected with an electric energy quality data acquisition module.
4. The power quality monitoring system applicable to different enterprises according to claim 1, characterized in that: the electric energy quality calculation module comprises an acquisition module and a conversion module, wherein the acquisition module acquires all electric energy data acquisition and data formats through a monitoring data access interface, and the conversion module is used for converting the acquired real-time data into current digital information and outputting the current digital information.
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| CN202010128345.0A CN111157829A (en) | 2020-02-28 | 2020-02-28 | Electric energy quality monitoring system suitable for different enterprises |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113586423A (en) * | 2021-09-08 | 2021-11-02 | 广东鑫钻节能科技股份有限公司 | Electric energy stability monitoring system for air compressor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113586423A (en) * | 2021-09-08 | 2021-11-02 | 广东鑫钻节能科技股份有限公司 | Electric energy stability monitoring system for air compressor |
| CN113586423B (en) * | 2021-09-08 | 2022-05-10 | 广东鑫钻节能科技股份有限公司 | Electric energy stability monitoring system for air compressor |
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Effective date of registration: 20221123 Address after: 215000 Chunjiang Road, East Industrial Zone, Kunshan Development Zone, Suzhou, Jiangsu Applicant after: KUNSHAN JUNHUI ELECTROMECHANICAL EQUIPMENT CO.,LTD. Address before: 200000 No. 89, Youdong Road, Xinzhuang Town, Minhang District, Shanghai Applicant before: JUNHUI ELECTRIC (CHINA) CO.,LTD. |