CN113472839A - Data cascade acquisition and transmission system suitable for gateway bus balance system - Google Patents
Data cascade acquisition and transmission system suitable for gateway bus balance system Download PDFInfo
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- CN113472839A CN113472839A CN202110504997.4A CN202110504997A CN113472839A CN 113472839 A CN113472839 A CN 113472839A CN 202110504997 A CN202110504997 A CN 202110504997A CN 113472839 A CN113472839 A CN 113472839A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
- G01R22/061—Details of electronic electricity meters
- G01R22/063—Details of electronic electricity meters related to remote communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0663—Performing the actions predefined by failover planning, e.g. switching to standby network elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/30—Arrangements in telecontrol or telemetry systems using a wired architecture
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Abstract
The invention belongs to the technical field of electric power, and particularly relates to a data cascade acquisition and transmission system suitable for a gateway bus balance system, which comprises: the main electric energy acquisition terminal is arranged on a land main control room, is communicated with a gateway bus balance system main station through an electric data network switch and is also connected with an electric energy meter at the main station end and acquires electric energy data; the slave electric energy acquisition terminals are arranged in each remote electric meter compartment and are connected with the electric energy meters at the station end and acquire electric energy data; the main electric energy acquisition terminal is connected with each slave electric energy acquisition terminal through a first optical fiber network so as to realize the acquisition of electric energy data. The invention reduces the construction cost and the operation and maintenance cost of electric energy data acquisition, and realizes acquisition and transmission of various electric energy data required by bus balance.
Description
Technical Field
The invention belongs to the technical field of electric power, and particularly relates to a data cascade acquisition and transmission system suitable for a gateway bus balance system.
Background
With the more mature new energy utilization technologies such as offshore wind power, pumped storage power generation, photovoltaic power generation and the like in China, the investment of new energy power generation construction is continuously increased; the power generation enterprises have the characteristics of severe environment and complex terrain; if the offshore wind power generator set is on land and on the sea, the distance between the generator sets is long, the electric quantity data acquisition environment is complex, and if the traditional electric power data network is adopted for wiring and acquiring the electric quantity data, the investment cost is high, the data acquisition is unstable, the management difficulty is high, the operation and maintenance cost is high, and the troubleshooting is difficult.
Disclosure of Invention
In order to solve the technical problem, the invention provides a data cascade acquisition and transmission system suitable for a gateway bus balance system.
A data cascade collection transmission system suitable for a gateway bus balance system comprises:
the main electric energy acquisition terminal is arranged on a land main control room, is communicated with a gateway bus balance system main station through an electric data network switch and is also connected with an electric energy meter of a plant station end main control room and acquires electric energy data;
the slave electric energy acquisition terminals are arranged in the remote electric energy meter compartments and are connected with the electric energy meters at the station end and acquire electric energy data;
the main electric energy acquisition terminal is connected with each slave electric energy acquisition terminal through a first optical fiber network so as to realize the acquisition of electric energy data.
Preferably, the main electric energy acquisition terminal and each slave electric energy acquisition terminal acquire time-sharing electric quantity, daily electric quantity, monthly electric quantity, telemetering data and event information of the electric energy meter at the nearby gateway in a protocol message mode through an RS485 port, and the time-sharing electric quantity, the daily electric quantity, the monthly electric quantity, the telemetering data and the event information are classified and stored in a file mode according to data types.
Preferably, the slave electric energy acquisition terminal maps the configuration parameters sent by the electric energy meter to the master electric energy acquisition terminal, and the master electric energy acquisition terminal stores the mapped parameter information; and the main electric energy acquisition terminal periodically receives all electric quantity data and event information sent from the electric energy acquisition terminal according to the stored mapping configuration information, and classifies and stores all acquired data in a file form.
Preferably, the main electric energy acquisition terminal acquires the electric energy data of the plurality of slave electric energy acquisition terminals in a one-to-many cascade networking connection mode according to the field environment, and all the IP addresses are allocated according to plant negotiation.
Preferably, the corresponding connection mode is selected according to the distance between the main electric energy acquisition terminal and the auxiliary electric energy acquisition terminal.
Preferably, the master electric energy acquisition terminal is further connected with each slave electric energy acquisition terminal through a second optical fiber network to realize the acquisition of the electric energy data;
when the first optical fiber network fails, the main electric energy acquisition terminal and the slave electric energy acquisition terminal are automatically switched to the second optical fiber network for electric energy data acquisition, so that normal acquisition and transmission of data communication are ensured;
and when the first optical fiber network is recovered from the fault, the main electric energy acquisition terminal and the auxiliary electric energy acquisition terminal are automatically switched back to the first optical fiber network for electric quantity data acquisition.
Preferably, a router and a firewall are further connected between the bus balancing system main station and the power data network switch.
The technical scheme adopted by the invention has the following beneficial effects:
1. the construction cost and the operation and maintenance cost of electric energy data acquisition are reduced through the main electric energy acquisition terminal arranged in the onshore main control room and the auxiliary electric energy acquisition terminals arranged in the compartments of the remote electric energy meters, and the acquisition and transmission of various electric energy data required by bus balance are realized;
2. each level of ERTU and nearby gateway electric energy meter are in networking communication through an RS485 bus, each level of ERTU is responsible for managing and collecting each directly-connected gateway electric energy meter, when the RS485 connection node of a particular electric energy meter breaks down, the collection of data close to other electric energy meters is not influenced, fault nodes are defined, the work of troubleshooting of the fault nodes is reduced, and the operation and maintenance efficiency is improved.
3. Each level of ERTU has one-path RS485 bus multi-protocol access capability. The gateway electric energy meter can collect time-sharing electric quantity, daily electric quantity, monthly electric quantity, telemetering data and event information, and all data are classified and stored in a file form according to data types. Under the condition of network channel failure, the collection of the electric energy of the gateway electric energy meter is still ensured, and after the communication failure is recovered, the main station realizes the complementary collection of data during the channel failure through the slave electric energy collection terminal, so that the data safety is ensured;
4. a remote electric energy acquisition terminal is deployed in a remote electric energy meter compartment and serves as a slave electric energy acquisition terminal, and the slave electric energy acquisition terminal sequentially maps the acquired electric energy point numbers of the electric energy meter to a master electric energy acquisition terminal; the collected data are uploaded to the main electric energy collecting terminal from the electric energy collecting terminal, so that stable uploading and collection of the electric energy meter at a remote gateway are guaranteed;
5. a remote electric energy acquisition terminal is deployed in a main control room to serve as a main electric energy acquisition terminal, and electric energy meters mapped from the electric energy acquisition terminals are stored and sequentially configured; according to the configuration sequence of the electric energy meter sent from the electric energy acquisition terminal, storing the electric quantity data sent from the electric energy acquisition terminal, and performing classified storage according to the form of files; classifying and collecting the electric quantity data required by all the master stations;
6. the main station is connected by adopting an Ethernet ICP/IP protocol, and data acquisition is carried out on the main electric energy acquisition terminal in a protocol message mode, so that the data of the electric energy meter of the whole plant station is uploaded, the data acquisition requirement of the bus balancing main station is met, the equipment management cost of a main station dispatching department is reduced, the occupation of IP resources of an electric data network is reduced, and the division of work of an operation and maintenance department is clear;
7. the cascade network is connected with all remote electric energy data acquisition terminals in a main-standby two-path networking mode; in a normal operation state, all the devices adopt a main network for data communication; when the main network has communication faults, the remote electric energy data acquisition terminal is actively switched to the standby network for communication; after the main network communication fault is recovered, the remote electric energy data acquisition terminal automatically switches to the main network communication data; the method ensures that the main station can stably acquire the electric quantity data during the channel fault period;
8. the main electric energy acquisition terminal has no quantity limit on the acquisition of the auxiliary electric energy acquisition terminals, the main electric energy acquisition terminal can be set according to the field requirements of the plant station to acquire the quantity of the auxiliary electric energy acquisition terminals, and the L-shaped, star-shaped, mixed and other wiring modes are designed according to the field conditions of the plant station so as to reduce the construction cost investment and improve the economic benefit.
The following detailed description of the present invention will be provided in conjunction with the accompanying drawings.
Drawings
The invention is further described with reference to the accompanying drawings and the detailed description below:
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of an L-shaped structure according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a star configuration according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a hybrid architecture according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a router and a firewall according to another embodiment of the present invention;
fig. 6 is a schematic structural diagram of another embodiment of 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. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. 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.
The basic idea of the invention is that a main electric energy acquisition terminal is arranged on a land main control room, the main electric energy acquisition terminal is communicated with a gateway bus balance system main station through an electric data network exchanger, and the main electric energy acquisition terminal is also connected with an electric energy meter of a plant station end main control room and acquires electric energy data; the slave electric energy acquisition terminal is connected with the station-end electric energy meter through the slave electric energy acquisition terminal arranged in each remote electric meter compartment and acquires electric energy data; the main electric energy acquisition terminal is connected with each slave electric energy acquisition terminal through a first optical fiber network so as to realize the acquisition of electric energy data.
As shown in fig. 1, an embodiment of the present invention provides a data cascade acquisition and transmission system suitable for a gateway bus balancing system, including: the main electric energy acquisition terminal is arranged on a land main control room, is communicated with a gateway bus balance system main station through an electric data network switch and is also connected with an electric energy meter of a plant station end main control room and acquires electric energy data; the slave electric energy acquisition terminals are arranged in each remote electric meter compartment and are connected with the electric energy meters at the station end and acquire electric energy data; the main electric energy acquisition terminal is connected with each slave electric energy acquisition terminal through a first optical fiber network so as to realize the acquisition of electric energy data.
Based on the connection mode, under the condition of network channel failure, the collection of the electric energy data of the closed electric energy meter from the electric energy collection terminal can still be ensured; after the communication fault is recovered, the main electric energy acquisition terminal realizes the complementary acquisition of data during the channel fault through the auxiliary electric energy acquisition terminal, and the data safety is guaranteed.
And each cascade electric energy acquisition terminal is networked with the electric energy meter by utilizing an RS485 bus, and the nearby gateway electric energy meters are connected in parallel. The electric energy acquisition terminal supports the access of electric energy meters of different manufacturers, different protocols and different rates on one RS485 bus. The electric energy acquisition terminal finishes acquiring time-sharing electric quantity, daily electric quantity, monthly electric quantity, telemetering data and event information of all electric energy meters within the set acquisition cycle time, and the acquired data are classified and stored in a file form; through this mode, realize that terminal at different levels manages and gathers the gateway electric energy meter nearby, effectively avoided because the unable communication of whole line electric energy meter that local electric energy meter communication fault leads to, make things convenient for the accurate trouble node of looking for of fortune dimension personnel and maintain.
Each level of ERTU and nearby gateway electric energy meters are in networking communication through RS485 buses, each level of ERTU is responsible for managing and collecting each directly-connected gateway electric energy meter, when the RS485 connection node of a single electric meter fails, the collection of data close to other electric meters is not influenced, the fault node is determined, the troubleshooting work of the fault node is reduced, and the operation and maintenance efficiency is improved.
Mapping the configuration parameters sent by the electric energy meter to a main electric energy acquisition terminal from the electric energy acquisition terminal, and storing the mapped parameter information by the main electric energy acquisition terminal; and the main electric energy acquisition terminal periodically receives all electric quantity data and event information sent from the electric energy acquisition terminal according to the stored mapping configuration information, and classifies and stores all acquired data in a file form, so that classified acquisition of the electric quantity data required by all the main stations is realized.
The bus balance main station is connected with the main electric energy acquisition terminal through an Ethernet ICP/IP protocol, and acquires ammeter data information stored by the main electric energy acquisition terminal in a protocol communication mode, so that bus balance analysis and calculation of data of a remote station by the main station are realized; the main electric energy acquisition terminal can be configured in a one-to-many connection mode according to the field environment, namely, one main electric energy acquisition terminal acquires a plurality of auxiliary electric energy acquisition terminals; the method adopts cascade networking, all IP addresses are allocated according to plant negotiation, limited IP address resources of a power data network are not occupied, the current situation that a common plant power data network is only deployed to a master control room is effectively solved, and a master station only needs to collect electric quantity data of one main power energy collection terminal to realize stable collection of the whole plant electric meter data; the management cost of a master station dispatching department is effectively reduced, and the division of labor of on-site operation and maintenance management is clear.
If the distance between the main electric energy acquisition terminal and the auxiliary electric energy acquisition terminal is far, the first optical fiber network comprises a main control room switch arranged on the land in a main control room and a remote switch arranged in a certain remote electric meter compartment, the main control room switch is connected with the remote switch through an optical fiber network, and the remote switch is connected with other auxiliary electric energy acquisition terminals through the optical fiber network. If the distance between the master electric energy acquisition terminal and the slave electric energy acquisition terminal is short, the first optical fiber network only comprises a master control room switch arranged on a land master control room, and the master control room switch and the slave electric energy acquisition terminal are also connected through the optical fiber network.
As shown in fig. 2 to 4, the corresponding connection mode is selected according to the distance between the master electric energy collection terminal and the slave electric energy collection terminal. When the distance between the master control room and each remote electric meter compartment is far, but the distance between each remote electric meter compartment is close, the master control room and each remote electric meter compartment can be designed into an L-shaped layout, and the layout reduces the optical cable wiring between the master control room and each remote electric meter compartment; when each remote electric meter compartment is close to the master control room, the star-shaped wiring layout can be designed, and the investment of communication equipment can be reduced; when the master control room is close to part of the remote electric meter compartment and is far from part of the remote electric meter compartment, the master control room can be designed into a mixed type so as to meet the construction requirements of more complex terrains; through the design of different wiring modes, the investment cost is effectively saved, and the efficiency of construction engineering is improved.
In order to ensure the security of data uploading, as shown in fig. 5, a router and a firewall are further connected between the bus balancing system main station and the power data network switch.
In one embodiment, as shown in fig. 6, the master electrical energy collection terminal is further connected with each slave electrical energy collection terminal through a second optical fiber network to realize the collection of the electrical energy data.
When the first optical fiber network fails, the main electric energy acquisition terminal and the slave electric energy acquisition terminal are automatically switched to the second optical fiber network for electric energy data acquisition, so that normal acquisition and transmission of data communication are ensured; and when the first optical fiber network is recovered from the fault, the main electric energy acquisition terminal and the auxiliary electric energy acquisition terminal are automatically switched back to the first optical fiber network for electric quantity data acquisition.
The adoption of the cascade network and the mode of main-standby two-path networking ensures that the main station can stably collect the electric quantity data during the channel fault.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that the invention is not limited thereto, and may be embodied in other forms without departing from the spirit or essential characteristics thereof. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.
Claims (7)
1. A data cascade collection transmission system suitable for a gateway bus balance system is characterized by comprising:
the main electric energy acquisition terminal is arranged on a land main control room, is communicated with a gateway bus balance system main station through an electric data network switch and is also connected with an electric energy meter of a plant station end main control room and acquires electric energy data;
the slave electric energy acquisition terminals are arranged in each remote electric meter compartment and are connected with the electric energy meters at the station end and acquire electric energy data;
the main electric energy acquisition terminal is connected with each slave electric energy acquisition terminal through a first optical fiber network so as to realize the acquisition of electric energy data.
2. The data cascade collection and transmission system suitable for the gateway bus balancing system as claimed in claim 1, wherein the master electric energy collection terminal and each slave electric energy collection terminal collect time-sharing electric quantity, daily electric quantity, monthly electric quantity, telemetering data and event information of the nearby gateway electric energy meter in a protocol message manner through an RS485 port, and store the time-sharing electric quantity, the daily electric quantity, the monthly electric quantity, the telemetering data and the event information in a file manner according to data types.
3. The data cascade collection and transmission system suitable for the gateway bus balance system according to claim 1, wherein the slave electric energy collection terminal maps the configuration parameters sent by the electric energy meter to the master electric energy collection terminal, and the master electric energy collection terminal stores the mapped parameter information; and the main electric energy acquisition terminal periodically receives all electric quantity data and event information sent from the electric energy acquisition terminal according to the stored mapping configuration information, and classifies and stores all acquired data in a file form.
4. The data cascade collection and transmission system suitable for the gateway bus balancing system as claimed in claim 1, wherein the master electrical energy collection terminal collects the electrical energy data of a plurality of slave electrical energy collection terminals in a one-to-many cascade networking manner according to a field environment, and all IP addresses are allocated according to plant station negotiation.
5. The data cascade collection and transmission system suitable for the gateway bus balance system as claimed in claim 4, wherein the corresponding connection mode is selected according to the distance between the master electric energy collection terminal and the slave electric energy collection terminal.
6. The data cascade collection and transmission system suitable for the gateway bus balance system according to any one of claims 1 to 5, wherein the master electric energy collection terminal is further connected with each slave electric energy collection terminal through a second optical fiber network to realize collection of electric energy data;
when the first optical fiber network fails, the main electric energy acquisition terminal and the slave electric energy acquisition terminal are automatically switched to the second optical fiber network for electric energy data acquisition, so that normal acquisition and transmission of data communication are ensured;
and when the first optical fiber network is recovered from the fault, the main electric energy acquisition terminal and the auxiliary electric energy acquisition terminal are automatically switched back to the first optical fiber network for electric quantity data acquisition.
7. The data cascade collection and transmission system suitable for the gateway bus balancing system according to any one of claims 1 to 5, wherein a router and a firewall are further connected between the bus balancing system master station and the electric power data network switch.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114792975A (en) * | 2022-06-22 | 2022-07-26 | 上海爱可生信息技术股份有限公司 | Data restoration method for bus balance in power grid |
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