CN115133652A - Electric power system parameter monitoring system adopting real-time sensing technology - Google Patents
Electric power system parameter monitoring system adopting real-time sensing technology Download PDFInfo
- Publication number
- CN115133652A CN115133652A CN202210683942.9A CN202210683942A CN115133652A CN 115133652 A CN115133652 A CN 115133652A CN 202210683942 A CN202210683942 A CN 202210683942A CN 115133652 A CN115133652 A CN 115133652A
- Authority
- CN
- China
- Prior art keywords
- power
- module
- power grid
- monitoring
- real
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00034—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving an electric power substation
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/16—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by adjustment of reactive power
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
- H02J3/1821—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators
- H02J3/1835—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control
- H02J3/1864—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control wherein the stepless control of reactive power is obtained by at least one reactive element connected in series with a semiconductor switch
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
- H02J3/1878—Arrangements for adjusting, eliminating or compensating reactive power in networks using tap changing or phase shifting transformers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Human Computer Interaction (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a power system parameter monitoring system adopting a real-time sensing technology, which comprises: the system comprises an electric power acquisition module, a network analysis and planning module, a safety monitoring module, an automatic power generation control module and a power distribution automation module; the power acquisition module is used for collecting various power use information of local power equipment in monitoring systems in all substations and power plants; the network analysis and plan module is used for processing the information received by the power grid dispatching center through the SCADA system, and issuing various control commands after being judged by a dispatcher; the safety monitoring module is used for acquiring the analog quantity or the state quantity of the power grid in real time; and the power distribution automation module is used for realizing a human-computer interaction system of the power grid dispatching control center. The invention adopts a man-machine exchange system, shows the running state of the power grid to a dispatcher in a chart mode, receives the action instruction of the dispatcher, monitors the parameters of the power system in real time and ensures the stability of the operation of power equipment.
Description
Technical Field
The invention relates to the technical field of power system parameter monitoring, in particular to a power system parameter monitoring system adopting a real-time sensing technology.
Background
In recent years, due to rapid increase of power load, a power network is gradually operated at the edge of a safe domain in the world, so that a large-area power failure accident caused by voltage collapse occurs, and great economic loss is caused. With the large access of intermittent new energy, the operation environment of the power grid will be worsened, and the trend causes high attention of governments and power companies.
The safety of the power system refers to the risk degree that the system can keep stable operation and normal power supply under the condition that the system breaks down. The traditional safety of the power system is mainly to study the dynamic characteristics of the power system under the condition of fault, including power angle stability, voltage stability, frequency stability, system disconnection, thermal overload and the like of the system. Such studies are typically directed to single failures, whereas large area blackouts are often complex sequences of linked events.
With the development of modern communication technology and information technology, various information systems, such as a scheduling automation system (SCADA/EMS), a distribution network automation system (DA), a substation integrated automation System (SA), an electric power market technical support system, and the like, are widely used in the field of electric power systems in order to ensure the safe and economic operation of a large power grid. Given the overall architecture of modern power systems, which have been converged into highly integrated hybrid systems with information systems and communication systems, monitoring and control of power systems increasingly rely on reliable operation of information systems and communication systems.
Under the current situation, in order to reasonably and effectively utilize limited power resources, accurate and real-time monitoring of power parameters is required.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
Aiming at the problems in the related art, the invention provides a power system parameter monitoring system adopting a real-time sensing technology, so as to overcome the technical problems in the prior related art.
Therefore, the invention adopts the following specific technical scheme:
an electric power system parameter monitoring system adopting a real-time sensing technology comprises: the system comprises a power acquisition module, a network analysis and planning module, a safety monitoring module, an automatic power generation control module and a power distribution automation module;
the power acquisition module is connected with the safety monitoring module through the network analysis and planning module, and the safety monitoring module is connected with the distribution automation module through the automatic power generation control module;
the power acquisition module is constructed by a master station computer of the power grid dispatching control center, RTUs (remote terminal units) of remote power plants and substations and related power grid information transmission channels, collects various power use information of local power equipment in monitoring systems of all substations and power plants, and uploads the power use information to the power grid dispatching center;
the network analysis and plan module is used for processing the information received by the power grid dispatching center through the SCADA system, and issuing various control commands after being judged by a dispatcher;
the safety monitoring module is used for acquiring the analog quantity or the state quantity of the power grid in real time and judging the safety influence range of the power grid;
the automatic power generation control module is used for performing mathematical operation on the data which are not acquired to obtain the data which are not acquired, compensating the deviation of the measurement system and meeting the requirement of power grid dispatching;
and the power distribution automation module is used for realizing a human-computer interaction system of a power grid dispatching control center.
Further, the master station computer for the power grid dispatching control center is built with the RTUs located in remote power plants and substations and the related power grid information transmission channels, collects various power usage information of local power equipment in each substation and monitoring system in the power plants, and uploads the information to the power grid dispatching center, and further comprises the following steps:
the RTU of the transformer substation scans and simulates the output of the shaking measurement system in a fixed period;
if the difference between the detection value of a certain power device and the previous value exceeds a preset range, sending a new detection value to a power grid dispatching center;
when the RTU detects the change of the remote signaling quantity, sending the new remote signaling quantity to a power grid dispatching center;
and measuring the electric quantity by the pulse electric meter, continuously sending the pulse accumulated quantity measured by the electric quantity to a transformer substation of the power grid dispatching center, and calling the power grid dispatching center.
Further, the remote communication quantity is state information of a circuit breaker, a disconnecting switch and isolation protection.
Further, the steps of processing the information received by the power grid dispatching center through the SCADA system, and issuing various control commands after being judged by the dispatcher further include:
reading data information received by a power grid dispatching center, and transmitting related information to a master station through a telecontrol device according to operation requirements;
the information collecting and executing subsystem receives operation, regulation and control commands sent by the operation needs of the main station and forwards the commands to dispatching personnel of corresponding devices according to a certain rule;
and the dispatching personnel controls the corresponding device according to the instruction of the master station and adjusts the power equipment.
Further, the step of acquiring the analog quantity or the state quantity of the power grid in real time and judging the safety influence range of the power grid further comprises the following steps of:
constructing a Proc model, accessing kernel data of an operating system in a file system mode, and providing a network interface for the data of the kernel of the operating system;
knowing the state of the operating system core or each process through a data providing network interface, generating a Proc tree, and configuring parameters of the system;
reading a function pointer in a file system of the Proc, aiming at a conventional power grid with a name and a position relatively fixed under a Proc tree directory, and recording the running state of power equipment in the power grid;
the method comprises the steps of collecting analog quantity or state quantity of power equipment in the power grid, making a safety data report, and analyzing the safety of the power grid according to a mathematical model of reactive voltage optimal control.
Further, the construction method of the mathematical model for the reactive voltage optimization control comprises the following steps:
the minimum network loss is taken as an optimization target;
taking bus voltage and branch reactive power flow as control objects;
a linear model is established by taking switching of a compensation capacitor and changing of an on-load tap changer as control means.
Further, the formula of the linearized model is as follows:
in the formula, minZ represents minimum network loss, C represents a coefficient matrix, Δ u represents a control quantity increment, Δ x represents a control quantity increment to be corrected, and sub.S represents image subtitles.
Further, the non-collected data includes telemetry, constants, and combinations thereof.
Further, the human-computer interaction system for implementing the power grid dispatching control center further comprises the following steps:
the collected data is visually and vividly displayed in monitoring equipment of a power grid dispatching control center;
and the dispatcher controls and controls the power equipment through the MainMachine management module according to the display and elimination of the monitoring equipment on the power equipment through the window.
Further, the MainMachine management module comprises a display process and an elimination process;
the display process comprises the following steps:
the window management process starts a window for general services;
the MainMachine management process receives a window display request;
the MainMachine management process sends a starting requirement to the window management process;
the window management process feeds back a presentation notification message to the MainMachine management process;
the elimination process comprises the steps of:
the window management process starts a window for general services;
the MainMachine management process receives a window elimination request;
the MainMachine management process sends a deletion request to the window management process;
and the window management process feeds back a cancellation notification message to the MainMachine management process.
The invention has the beneficial effects that: the invention adopts a man-machine exchange system, shows the running state of the power grid to a dispatcher in a chart mode, receives an action instruction of the dispatcher, monitors the parameters of the power system in real time, and ensures the stability of the operation of power equipment; besides providing a calculation formula which is often used in a report, a dispatcher can also make the calculation formula by himself, and report data maintenance comprises making and modifying of authorized regulations; the user can define various statistical analysis reports such as power supply reliability and equipment reliability statistical analysis reports conveniently.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic block diagram of a power system parameter monitoring system using real-time sensing technology according to an embodiment of the present invention.
In the figure:
1. a power acquisition module; 2. a network analysis and planning module; 3. a security monitoring module; 4. an automatic power generation control module; 5. distribution automation module.
Detailed Description
For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to enable one skilled in the art to understand the embodiments and advantages of the disclosure for reference and without scale, wherein elements are not shown in the drawings and like reference numerals are used to refer to like elements generally.
According to an embodiment of the invention, a power system parameter monitoring system using a real-time sensing technique is provided.
Referring to the drawings and the detailed description, the invention will be further described, as shown in fig. 1, in an embodiment of the invention, a parameter monitoring system for an electric power system using a real-time sensing technology includes: the system comprises a power acquisition module 1, a network analysis and planning module 2, a safety monitoring module 3, an automatic power generation control module 4 and a power distribution automation module 5;
the power acquisition module 1 is connected with the safety monitoring module 3 through the network analysis and planning module 2, and the safety monitoring module 3 is connected with the distribution automation module 5 through the automatic power generation control module 4;
the power acquisition module 1 is constructed by a main station computer of a power grid dispatching control center, RTUs (remote terminal units) of remote power plants and substations and related power grid information transmission channels, collects various power use information of local power equipment in each substation and a monitoring system in each power plant, and uploads the power use information to the power grid dispatching center;
in one embodiment, the master station computer for the grid dispatching control center is built with RTUs located in remote power plants and substations and related grid information transmission channels, collects various power usage information of local power equipment in monitoring systems in each substation and power plant, and uploads the power usage information to the grid dispatching center, and further includes the following steps:
the RTU of the transformer substation scans and simulates the output of the shaking measurement system in a fixed period;
if the difference between the detection value of a certain power device and the previous value exceeds a preset range, sending a new detection value to a power grid dispatching center;
when the RTU detects the change of the remote signaling quantity, sending the new remote signaling quantity to a power grid dispatching center;
measuring the electric quantity by the pulse electric meter, continuously sending the pulse accumulated quantity measured by the electric quantity to a transformer substation of a power grid dispatching center, and calling the power grid dispatching center;
in one embodiment, the telecommunications traffic is status information of circuit breakers, disconnectors and isolation protection.
When the system is applied specifically, data information is transmitted to a master station (transformer substation) through a channel, a master station computer system converts the data into engineering quantity, and then the engineering quantity is provided for a man-machine contact subsystem and is output to scheduling operators.
The network analysis and plan module 2 is used for processing the information received by the power grid dispatching center through the SCADA system, and issuing various control commands after being judged by dispatching personnel;
in one embodiment, the step of processing the information received by the grid dispatching center through the SCADA system and issuing various control commands after being judged by a dispatcher further includes the following steps:
reading data information received by a power grid dispatching center, and transmitting related information to a master station through a telecontrol device according to operation requirements;
the information collecting and executing subsystem receives operation, regulation and control commands sent by the operation needs of the main station and forwards the commands to dispatching personnel of corresponding devices according to a certain rule;
and the dispatching personnel controls the corresponding device according to the instruction of the master station and adjusts the power equipment.
In specific applications, the remote data collected by the SCADA generally includes three types: analog, digital, pulse, so-called telemetry, telecommunications, electricity. In a common SCADA system, a station terminal RTU scans the output of an analog quantity measuring system in a short period, and if the difference between a certain quantity detection value and a previous value exceeds a certain range (dead zone), a new quantity measurement value is sent to a master station; the state information of circuit breaker, isolator, protection, etc. belongs to the teletraffic, and when the RTU detects the change of teletraffic, the new value is sent to the main website. The pulse quantity is usually the electric quantity measured by a pulse electric meter, and the measured pulse cumulative quantity is continuously transmitted to the master station to ensure that the master station can receive the usable electric quantity; in addition, the plant station end equipment can transmit full data once at a certain time, and all telemetering, remote signaling and electric power are transmitted to the main station end.
The safety monitoring module 3 is used for acquiring the analog quantity or the state quantity of the power grid in real time and judging the safety influence range of the power grid;
in one embodiment, the step of acquiring the analog quantity or the state quantity of the power grid in real time and determining the safety influence range of the power grid further includes the following steps:
constructing a Proc model, accessing kernel data of an operating system in a file system mode, and providing a network interface for the data of the kernel of the operating system;
knowing the state of the operating system core or each process through a data providing network interface, generating a Proc tree, and configuring parameters of the system;
reading a function pointer in a file system of the Proc, aiming at a conventional power grid with a name and a position relatively fixed under a Proc tree directory, and recording the running state of power equipment in the power grid;
collecting analog quantity or state quantity of power equipment in a power grid, making a safety data report, and analyzing the safety of the power grid according to a mathematical model of reactive voltage optimal control;
in one embodiment, the mathematical model of the reactive voltage optimization control is constructed as follows:
the minimum network loss is taken as an optimization target;
taking bus voltage and branch reactive power flow as control objects;
a linear model is established by taking switching of a compensation capacitor and changing of an on-load tap changer as control means.
In one embodiment, the formulation of the linearized model is as follows:
in the formula, minZ represents minimum network loss, C represents a coefficient matrix, Δ u represents a control quantity increment, Δ x represents a control quantity increment to be corrected, and sub.S represents image subtitles.
In a specific application, the Proc file system is a file system peculiar to the UNIX/Linux system, and is a pseudo file system, files and directories of which are provided by a Linux operating system kernel, an interface is provided for an operation of accessing system kernel data in a file system mode, the file system does not occupy any space on a disk, and with the files and the directories, a user can more easily know the state of the operating system kernel or each process and can configure parameters of the system. For example, the default of the maximum number of files that can be opened in a system is 1024, that is, the system can open 1024 files at the same time, which is not enough when Linux is used as a server for multiple users, and the default value can be changed without modifying the kernel or even starting the machine by modifying the Proc setting files. It is also simple to implement, just by redirecting into the file with vi edit or echo parameters. Since the information of the system, such as the process, is dynamically changed, when a user or an application reads the Proc file, the Proc file system dynamically reads out the required information from the system kernel and submits the information.
The automatic power generation control module 4 is used for performing mathematical operation on the data which are not acquired to obtain the data which are not acquired, compensating the deviation of the measurement system and meeting the requirement of power grid dispatching;
in one embodiment, the uncollected data includes telemetry, constants, and combinations thereof.
The power distribution automation module 5 is used for realizing a human-computer interaction system of a power grid dispatching control center;
in one embodiment, the human-computer interaction system for implementing the power grid dispatching control center further includes the following steps:
the collected data is visually and vividly displayed in monitoring equipment of a power grid dispatching control center;
the dispatcher controls and controls the power equipment through the MainMachine management module according to the display and elimination of the monitoring equipment on the power equipment through the window;
in one embodiment, the MainMachine management module includes a display process and an elimination process;
the display process comprises the following steps:
the window management process starts a window for general services;
the MainMachine management process receives a window display request;
the MainMachine management process sends a starting requirement to the window management process;
the window management process feeds back a presentation notification message to the MainMachine management process;
the elimination process includes the steps of:
the window management process starts a window for general services;
the MainMachine management process receives a window elimination request;
the MainMachine management process sends a deletion request to the window management process;
and the window management process feeds back a deletion notification message to the MainMachine management process.
In specific application, in an electric power system, the essence of human-computer interaction is that collected data can be displayed in various visual and visual modes so as to facilitate dispatchers to better monitor and control related equipment, a human-computer interface exists as an independent application program, and the execution mode is completed by creating a sub-process through a main process. The realization mode optimizes the structure of a system software platform and improves the real-time performance of the system.
The structure of the human-computer interaction module can be summarized into two aspects, namely a hierarchical structure on one hand and a process structure on the other hand, and the Xwindow graphical interface program is relative to the hierarchical structure of the Xwindow system.
The invention is developed based on a series of middleware (common department) developed by Mitsubishi Motor corporation, wherein the middleware comprises power flow calculation of a power system, process control, picture style management and the like.
In summary, by means of the above technical solution of the present invention, the present invention adopts a human-computer switching system, displays the operation state of the power grid to the dispatcher in a graph manner, receives the action instruction of the dispatcher, monitors the parameters of the power system in real time, and ensures the stability of the operation of the power equipment, the Proc file system of the present invention has the most significant advantage that it manages the memory in a file manner, that is, the data in the Proc file all exist in the memory, it has the advantages of both memory and stability, the report is very important for the daily statistical application, so the general SCADA system has a strong report function, and can conveniently extract the data of the historical database; besides providing a calculation formula which is often used in a report, a dispatcher can also make the calculation formula by himself, and report data maintenance comprises making and modifying of authorized regulations; the user can define various statistical analysis reports such as power supply reliability and equipment reliability statistical analysis reports conveniently.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A power system parameter monitoring system adopting a real-time sensing technology is characterized by comprising: the system comprises a power acquisition module, a network analysis and planning module, a safety monitoring module, an automatic power generation control module and a power distribution automation module;
the power acquisition module is connected with the safety monitoring module through the network analysis and planning module, and the safety monitoring module is connected with the distribution automation module through the automatic power generation control module;
the power acquisition module is constructed by a main station computer of the power grid dispatching control center, RTUs (remote terminal units) of remote power plants and substations and related power grid information transmission channels, collects various power use information of local power equipment in monitoring systems of the substations and the power plants, and uploads the power use information to the power grid dispatching center;
the network analysis and plan module is used for processing the information received by the power grid dispatching center through the SCADA system, and issuing various control commands after being judged by a dispatcher;
the safety monitoring module is used for acquiring the analog quantity or the state quantity of the power grid in real time and judging the safety influence range of the power grid;
the automatic power generation control module is used for performing mathematical operation on the data which are not acquired to obtain the data which are not acquired, compensating the deviation of a measurement system and meeting the requirement of power grid dispatching;
and the power distribution automation module is used for realizing a human-computer interaction system of the power grid dispatching control center.
2. The system for monitoring parameters of an electric power system adopting a real-time sensing technology according to claim 1, wherein the master station computer for the grid dispatching control center is built with an RTU (remote terminal Unit) and a related grid information transmission channel, the RTU is located in a remote power plant and a remote substation, various electric power use information of local electric power equipment is collected in the monitoring systems in the substations and the power plants, and the electric power use information is uploaded to the grid dispatching center, and the system further comprises the following steps:
the RTU of the transformer substation scans and simulates the output of the shaking measurement system in a fixed period;
if the difference between the detection value of a certain power device and the previous value exceeds a preset range, sending a new detection value to a power grid dispatching center;
when the RTU detects the change of the remote signaling quantity, sending the new remote signaling quantity to a power grid dispatching center;
and the electric quantity measured by the pulse electric meter continuously sends the pulse accumulated quantity measured by the electric quantity to a transformer substation of the power grid dispatching center, and the dispatching of the power grid dispatching center is realized.
3. The system for monitoring parameters of an electric power system by using the real-time sensing technology as claimed in claim 2, wherein the remote communication quantity is status information of a circuit breaker, a disconnecting switch and an isolation protection.
4. The system for monitoring parameters of an electric power system using real-time sensing technology as claimed in claim 1, wherein said system for processing the information received by the grid dispatching center through the SCADA system and issuing various control commands after being judged by the dispatcher further comprises the steps of:
reading data information received by a power grid dispatching center, and transmitting related information to a master station through a telecontrol device according to operation requirements;
the information collecting and executing subsystem receives operation, regulation and control commands sent by the operation needs of the main station and forwards the commands to dispatching personnel of corresponding devices according to a certain rule;
and the dispatching personnel controls the corresponding device according to the instruction of the master station and adjusts the power equipment.
5. The system for monitoring parameters of an electric power system using a real-time sensing technology according to claim 1, wherein the system for collecting the analog quantity or the state quantity of the electric power grid in real time and determining the safety influence range of the electric power grid further comprises the following steps:
constructing a Proc model, accessing kernel data of an operating system in a file system mode, and providing a network interface for the data of the kernel of the operating system;
knowing the state of the operating system core or each process through a data providing network interface, generating a Proc tree, and configuring parameters of the system;
reading a function pointer in a file system of the Proc, aiming at a conventional power grid with a name and a position relatively fixed under a Proc tree directory, and recording the running state of power equipment in the power grid;
the method comprises the steps of collecting analog quantity or state quantity of power equipment in the power grid, making a safety data report, and analyzing the safety of the power grid according to a mathematical model of reactive voltage optimal control.
6. The system for monitoring the parameters of the power system by adopting the real-time sensing technology as claimed in claim 5, wherein the mathematical model for the reactive voltage optimization control is constructed by the following method:
the minimum network loss is taken as an optimization target;
taking bus voltage and branch reactive power flow as control objects;
a linear model is established by taking switching of a compensation capacitor and changing of an on-load tap changer as control means.
7. The system for monitoring parameters of an electric power system using real-time sensing technology as claimed in claim 6, wherein the formula of the linearized model is as follows:
in the formula, minZ represents minimum network loss, C represents a coefficient matrix, Δ u represents a control quantity increment, Δ x represents a control quantity increment to be corrected, and sub.S represents image subtitles.
8. The system of claim 1, wherein the non-collected data comprises telemetry, constants, and combinations thereof.
9. The system for monitoring parameters of an electric power system adopting a real-time sensing technology as claimed in claim 1, wherein the human-computer interaction system for implementing the grid dispatching control center further comprises the following steps:
the collected data is visually and vividly displayed in monitoring equipment of a power grid dispatching control center;
and the dispatcher controls and controls the power equipment to be displayed and eliminated through the window by the MainMachine management module according to the monitoring equipment.
10. The system for monitoring the parameters of the power system by adopting the real-time sensing technology as claimed in claim 9, wherein the MainMachine management module comprises a display process and an elimination process;
the display process comprises the following steps:
the window management process starts a window for general services;
the MainMachine management process receives a window display request;
the MainMachine management process sends a starting requirement to the window management process;
the window management process feeds back a presentation notification message to the MainMachine management process;
the elimination process comprises the steps of:
the window management process starts a window for general services;
the MainMachine management process receives a window elimination request;
the MainMachine management process sends a deletion request to the window management process;
and the window management process feeds back a deletion notification message to the MainMachine management process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210683942.9A CN115133652A (en) | 2022-06-16 | 2022-06-16 | Electric power system parameter monitoring system adopting real-time sensing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210683942.9A CN115133652A (en) | 2022-06-16 | 2022-06-16 | Electric power system parameter monitoring system adopting real-time sensing technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115133652A true CN115133652A (en) | 2022-09-30 |
Family
ID=83378617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210683942.9A Pending CN115133652A (en) | 2022-06-16 | 2022-06-16 | Electric power system parameter monitoring system adopting real-time sensing technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115133652A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117353464A (en) * | 2023-12-04 | 2024-01-05 | 广东浩宁达实业有限公司 | Time-sharing control method for optimal state of linkage of slave equipment of electric energy meter |
-
2022
- 2022-06-16 CN CN202210683942.9A patent/CN115133652A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117353464A (en) * | 2023-12-04 | 2024-01-05 | 广东浩宁达实业有限公司 | Time-sharing control method for optimal state of linkage of slave equipment of electric energy meter |
| CN117353464B (en) * | 2023-12-04 | 2024-02-23 | 广东浩宁达实业有限公司 | Time-sharing control method for optimal state of linkage of slave equipment of electric energy meter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100964298B1 (en) | A network analysis system | |
| CN104242471B (en) | A kind of comprehensive automation system of transformer substation | |
| CN203324773U (en) | Wind farm centralized control system | |
| CN203233238U (en) | Intelligent type fault recording online management system | |
| CN103138400B (en) | A kind of touch man-machine interaction switch cubicle detects monitoring integration device | |
| CN105071532A (en) | Transformer station automatic system | |
| CN103532749B (en) | A kind of main station information management system | |
| CN105811584A (en) | Intelligent transformation method of conventional substation | |
| KR20090032395A (en) | System and method for intelligent distribution automation | |
| CN105449849A (en) | Wind farm integrated monitoring system | |
| CN103065268A (en) | System for optimization, integration and intelligent analysis of operating data of converting station | |
| CN112583117A (en) | Data assembly service system based on intelligent edge terminal | |
| CN101741060A (en) | Demarcation circuit breaker device and remote monitoring method thereof | |
| CN111276929B (en) | Information recording method for fault expert diagnosis of power system | |
| CN115133652A (en) | Electric power system parameter monitoring system adopting real-time sensing technology | |
| Arun et al. | Substation automation system | |
| CN105703708A (en) | Photovoltaic power station monitoring system and method | |
| CN111327474B (en) | Power system fault diagnosis method based on topology analysis | |
| CN104537571A (en) | GIS-based power dispatching data graphical display method | |
| KR101992980B1 (en) | Virtual data generator for multiple protocols | |
| CN115995880A (en) | Comprehensive monitoring and analyzing method and system for multidimensional state of power distribution automation terminal | |
| CN114243930A (en) | Circuit breaker monitoring device and monitoring system | |
| CN115296401A (en) | Low-voltage transformer area intelligent monitoring system and monitoring method | |
| CN201270385Y (en) | Intelligent synthetic electric distribution box | |
| Xiong et al. | Remote monitoring system design of power substation based on GPRS |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |