CN106532930B - The intelligent monitor system of static synchronous compensator - Google Patents
The intelligent monitor system of static synchronous compensator Download PDFInfo
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- CN106532930B CN106532930B CN201610849605.7A CN201610849605A CN106532930B CN 106532930 B CN106532930 B CN 106532930B CN 201610849605 A CN201610849605 A CN 201610849605A CN 106532930 B CN106532930 B CN 106532930B
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- 230000003068 static effect Effects 0.000 title claims abstract description 12
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- 238000012544 monitoring process Methods 0.000 claims abstract description 21
- 238000004458 analytical method Methods 0.000 claims abstract description 9
- 238000007418 data mining Methods 0.000 claims abstract description 7
- 238000005065 mining Methods 0.000 claims abstract description 6
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- 238000012423 maintenance Methods 0.000 claims description 9
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- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
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Abstract
The present invention discloses a kind of intelligent monitor system of static synchronous compensator, except that can guarantee the functions such as the monitoring control basic to the device, can also carry out data mining and status assessment to STATCOM device.The system includes station level and wall；Wherein, the wall connection STATCOM device and the station level；The wall for acquiring the running state data of the STATCOM device in real time, and is stored；The station level, for obtaining the running state data, data carry out basic control operation, security and stability analysis, Outliers mining and prediction, running optimizatin to the STATCOM device according to the operation state, and status assessment is carried out to each electrical equipment of the STATCOM device, it determines the need for overhauling according to condition evaluation results.
Description
Technical Field
The invention relates to the technical field of automatic control, in particular to an intelligent monitoring system of a static synchronous compensator.
Background
The intelligent reactive compensation is a function of realizing reactive compensation and intelligent control information comprehensive management by using an intelligent control terminal, and has intelligent characteristics of informatization, automation and the like. The informatization means that various information is transmitted to a manager in time through a network in the running process of the reactive power compensation device, so that the manager can know the running condition of the device in time. Automation refers to the ability of the control system to automatically process information returned by the device.
The Static Synchronous Compensator (STATCOM) is used as an advanced reactive power compensation device and can simultaneously solve the problems of reactive power, harmonic waves and three-phase imbalance in the quality of electric energy. The STATCOM monitoring technology is an important technical field in the system research, is a STATCOM system control center, and is responsible for monitoring the running state of the whole STATCOM system and ensuring that the STATCOM system is in an optimal working state. In the existing research, the monitoring device for the STATCOM is less researched, and the STATCOM device in the prior art generally aims at improving the power factor, neglecting the consideration of the performance stability. Most of the existing monitoring systems include basic contents such as data acquisition, online monitoring, operation control, display, communication and the like, and the problems of data mining, state evaluation and the like of the whole device by the monitoring system are not involved, so that the problems of unstable system operation, failure not being discovered and eliminated early and the like are caused.
Disclosure of Invention
Aiming at the defects and shortcomings of the prior art, the invention provides an intelligent monitoring system of a static synchronous compensator.
The embodiment of the invention provides an intelligent monitoring system of a static synchronous compensator, which comprises:
a station control layer and a spacing layer; wherein,
the interval layer is connected with the STATCOM device and the station control layer;
the spacing layer is used for acquiring and storing the running state data of the STATCOM device in real time;
the station control layer is used for acquiring the running state data, performing basic control operation, safety and stability analysis, abnormal mining and prediction and running optimization on the STATCOM device according to the running state data, performing state evaluation on each electrical device of the STATCOM device, and determining whether maintenance is needed according to a state evaluation result.
The invention has the following beneficial effects:
the method comprises the steps of utilizing a spacer layer to collect running state data of the STATCOM device in real time, utilizing a station control layer to carry out safety stability analysis, abnormity mining and prediction, running optimization and state evaluation on the STATCOM device according to the running state data, enabling the STATCOM device to run more stably, and enabling faults of all electrical equipment to be found early.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of an intelligent monitoring system of a static synchronous compensator according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments, but not all embodiments, of the present invention. 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.
Referring to fig. 1, the embodiment discloses a layered distributed STATCOM monitoring system integrating data mining and state evaluation functions, which includes basic functions of the STATCOM device, such as basic real-time data acquisition and processing, online monitoring, operation control, communication, data recording and query, and further includes:
a station control layer and a spacing layer; wherein,
the station control layer and the spacing layer are connected through a LAN (local area network), the spacing layer is connected with each other through a serial communication bus CAN, and the spacing layer is connected with each electric device of the STATCOM device through the CAN.
The interlayer comprises a protection and alarm module, a monitoring data acquisition module, a control operation unit, an operation database and an evaluation database, and the station control layer comprises a human-computer interface, an engineer station, an algorithm controller, a data mining controller and a state evaluation controller. The system adopting the layered distributed structure has clear structure, simultaneously divides the high-level control strategy into three modules, and divides the database file into two modules, thereby being convenient for running state analysis and equipment state evaluation. The monitoring system has comprehensive functions and comprises: the method comprises the steps of collecting and displaying the running state of the STATCOM device in real time, judging the fault state of the STATCOM device on line, recording and analyzing running information, optimizing the running of the STATCOM device, evaluating the state of each device to judge whether maintenance is needed, and the like.
In this embodiment, the monitoring data acquisition module is configured to acquire the operating state data of the STATCOM device and the electrical equipment thereof in real time, and store the operating state data in the operating database and the evaluation database, where the evaluation database further stores preventative test data and historical data of the electrical equipment. The operating state data includes: the system comprises a STATCOM device, a power grid, a transformer, a water cooling system, a power grid, a STATCOM system, a transformer, a water cooling system, a. The preventive test is to judge the safety of the equipment in advance by different test methods corresponding to different indexes before the equipment is put into use. The historical data indexes comprise basic data (such as technical parameters, used time and the like) before the equipment is put into operation, the quality grade of the equipment, the service life of the equipment specified by a manufacturer, the evaluation of a user on the equipment and the like. Besides, the appearance inspection and the running environment of the equipment can be included.
Specifically, the monitoring data acquisition module may be further configured to classify the operation state data according to the category of the electrical device, and store the classified operation state data in the operation database and the evaluation database, where the electrical device is divided into five categories, i.e., a transformer bank, a switch bank, a line bank, a power bank, and a water cooling system. A transformer bank comprises all winding type devices such as: the water cooling system is suitable for high-voltage and large-capacity power equipment. Different data of each device are stored uniformly for use in state evaluation. Historical operating data can be stored through the operating database, indexes are built for all the classes, and functions of managing, inquiring, backing up and recovering the operating data are provided.
And the control operation unit is used for acquiring the running state data, performing initial running control on the electrical equipment according to the running state data, and taking charge of sending and receiving commands of the whole workflow. The initial operation control specifically refers to judging whether certain operation parameters are within a preset threshold range, and generating a corresponding control instruction according to a judgment result and issuing the control instruction to corresponding electrical equipment so as to ensure the operation safety of the electrical equipment. In addition, when the operation parameters are not in the safe range, the alarm can be given through the protection and alarm module.
The human-computer interface and engineer station provides a human-computer interaction interface for acquiring and displaying the running state data, and the control operation unit issues a control command to the electrical equipment to control the electrical equipment, wherein the human-computer interaction interface and engineer station comprises an electrical structure interface for displaying an electrical schematic diagram of the STATCOM device, a control interface for controlling the electrical equipment, an equipment debugging interface (capable of manually changing each switch state) for debugging the electrical equipment and an alarm interface. When the STATCOM device has accidents, faults and out-of-limit events, the protection and alarm module pushes out a corresponding picture through an alarm interface to alarm (certainly, sound alarm and the like can also be started).
It should be noted that the human-computer interface may be an industrial personal computer with a touch screen, which facilitates the operation of personnel, such as issuing commands, looking up information, and the like, and provides a friendly control interface, so that the operation personnel can perform operations of timing, issuing protection setting values, switching on and switching off the circuit breaker, adjusting the transformer tap, and the like on each protection measurement unit of the device through a keyboard or a mouse. The engineer station is a report and maintenance workstation and is used for completing drawing, viewing and printing of the report, establishing and modifying a system database, establishing and modifying a picture and defining and modifying the operation parameters of the whole system. In addition to this, a related user information management function, and functions of generation, printing, and the like of various curves, daily reports, and monthly reports can be provided.
Specifically, the electrical structure interface displays an electrical schematic diagram of the whole STATCOM device. In the figure, the background color of each electrical switch and each component part can change along with the actual operation or running action, namely the current state can be reflected in real time. When alarming, the corresponding device which acts can be flickered to alarm. The control interface can be divided into three main parts from top to bottom: a system operation button, a system electrical schematic and a device operation button to control the whole system and the electrical equipment. The operation authority is different for different operators, and the operators can select the operation authority through a 'switching authority' selection button. In addition, various recorded information of the STATCOM device can be stored in an operation database, such as operation recorded information of an operator, a protection action event record and the like, and an inquiry tool is provided for inquiry.
In addition, the interface can also comprise a system information page, a voltage meter page, a wave recording interface, an alarm interface and the like.
The algorithm controller comprises an algorithm (mainly comprising a steady-state voltage regulation strategy, a constant reactive power output strategy and a damping control) for enabling the STATCOM device to realize basic functions, and is used for acquiring the running state data and performing the running control of the basic functions on the electrical equipment according to the running state data, the data mining controller is used for acquiring the running state data and performing safety stability analysis, abnormal mining and prediction and running optimization on the electrical equipment according to the running state data, the state evaluation controller is used for acquiring data stored in the evaluation database, performing state evaluation on each electrical equipment according to the data stored in the evaluation database, and determining whether maintenance is needed according to a state evaluation result.
Specifically, the state evaluation controller is configured to establish an evaluation model, calculate each evaluation index of each module of the STATCOM device by using a preset evaluation algorithm based on the evaluation model, generate a state evaluation result of each module according to the evaluation index calculation result, and draw a conclusion whether state maintenance is required.
It should be noted that the evaluation process mainly includes two parts: and (4) establishing an evaluation model and applying an evaluation algorithm. The evaluation model is an evaluation system which scientifically carries out modularized classification on each equipment of the STATCOM according to composition characteristics, establishes evaluation indexes and finally forms clear layers. The evaluation algorithm is to calculate each index of each module by using the existing methods such as fuzzy analysis, weight analysis and the like so as to obtain different conclusions, further generate the state evaluation result of each module of the STATCOM and obtain the conclusion whether state maintenance is needed.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.
Claims (5)
1. An intelligent monitoring system for a static synchronous compensator, comprising:
a station control layer and a spacing layer; wherein,
the interval layer is connected with the STATCOM device and the station control layer;
the spacing layer is used for acquiring and storing the running state data of the STATCOM device in real time;
the station control layer is used for acquiring the running state data, performing basic control operation, safety and stability analysis, abnormal mining and prediction and running optimization on the STATCOM device according to the running state data, performing state evaluation on each electrical device of the STATCOM device, and determining whether maintenance is needed or not according to a state evaluation result;
the interlayer comprises a protection and alarm module, a monitoring data acquisition module, a control operation unit, an operation database and an evaluation database, and the station control layer comprises a human-computer interface, an engineer station, an algorithm controller, a data mining controller and a state evaluation controller;
the monitoring data acquisition module is used for acquiring the running state data of the STATCOM device and the electrical equipment thereof in real time and storing the running state data into the running database and the evaluation database, wherein the evaluation database also stores preventive test data and historical data of the electrical equipment;
the control operation unit is used for acquiring the running state data and carrying out initial running control on the electrical equipment according to the running state data;
the human-computer interface and the engineer station provide a human-computer interaction interface for acquiring and displaying the running state data, and issue a control command to the electrical equipment through the control operation unit to control the electrical equipment;
the algorithm controller is used for acquiring the running state data and performing running control on basic functions of the electrical equipment according to the running state data, the data mining controller is used for acquiring the running state data and performing safety and stability analysis, abnormal mining and prediction and running optimization on the electrical equipment according to the running state data, and the state evaluation controller is used for acquiring data stored in the evaluation database, performing state evaluation on each electrical equipment according to the data stored in the evaluation database and determining whether maintenance is needed or not according to a state evaluation result;
and the protection and alarm module is used for alarming when the STATCOM device has accidents, faults and out-of-limit events.
2. The system of claim 1, wherein the operational state data comprises:
the static synchronous compensator comprises a STATCOM device, a static synchronous compensator and a static synchronous compensator.
3. The system of claim 2, wherein the monitoring data acquisition module is further configured to classify the operation status data according to the category of the electrical equipment, and store the classified operation status data in the operation database and the evaluation database, wherein the electrical equipment is divided into five categories, namely a transformer bank, a switch bank, a line bank, a power bank and a water cooling system.
4. The system of claim 1, wherein the human-machine interface and engineer station comprises an electrical architecture interface for displaying an electrical schematic of the STATCOM apparatus, a manipulation interface for controlling the electrical equipment, an equipment commissioning interface for commissioning the electrical equipment, and an alarm interface.
5. The system according to claim 1, wherein the state evaluation controller is configured to establish an evaluation model, calculate evaluation indexes of each module of the STATCOM apparatus by using a preset evaluation algorithm based on the evaluation model, generate a state evaluation result of each module according to the evaluation index calculation result, and draw a conclusion whether state maintenance is required.
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| CN107482783B (en) * | 2017-10-16 | 2020-06-09 | 国家电网公司 | Comprehensive intelligent system for monitoring and controlling service power |
| CN113922506A (en) * | 2021-10-18 | 2022-01-11 | 普世通（北京）电气有限公司 | Method for realizing multiple physical models of dynamic voltage recovery device |
| CN114498670A (en) * | 2022-02-28 | 2022-05-13 | 英奈科(北京)智能系统有限公司 | Low-voltage switch capacitance compensation cabinet based on Internet of things |
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