CN218629969U - Electric energy redundancy acquisition system of power plant and power plant - Google Patents
Electric energy redundancy acquisition system of power plant and power plant Download PDFInfo
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- CN218629969U CN218629969U CN202222987767.0U CN202222987767U CN218629969U CN 218629969 U CN218629969 U CN 218629969U CN 202222987767 U CN202222987767 U CN 202222987767U CN 218629969 U CN218629969 U CN 218629969U
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Abstract
The embodiment of the utility model provides a redundant collection system of power plant electric energy and power plant belongs to power plant electric energy collection technical field. The power plant electric energy redundancy acquisition system comprises: the system comprises a plurality of electric energy acquisition terminals and a dual-machine switcher which is in parallel communication connection with the plurality of electric energy acquisition terminals; each electric energy acquisition terminal is in communication connection with one scheduling master station; the double-machine switcher is used for synchronously acquiring the electric energy acquisition data uploaded by each electric energy acquisition terminal. The utility model discloses the scheme has improved electric energy collection's reliability.
Description
Technical Field
The utility model relates to a power plant electric energy gathers technical field, specifically relates to a redundant collection system of power plant electric energy and a power plant.
Background
The electric energy acquisition terminal is a remote acquisition, storage and remote transmission device. In the electric energy metering and charging automatic system, an electric energy acquisition terminal is a communication center of electric energy data, and on one hand, the electric energy data output by a digital electric energy meter in a serial communication mode is acquired and stored; on the other hand, the collected electric energy data is transmitted to a main station of the electric energy charging automation system through an uplink channel, and the position is very important.
In a power plant, the electric energy acquisition terminal is commonly used, has multiple functions of electric energy acquisition and modeling, data processing, remote transmission and the like, and is suitable for a metering center and the like to acquire and process information of a remote intelligent electric meter. In the existing power plant, an electric energy acquisition terminal is equipped to detect the electric quantity in real time so as to monitor the information of the power generation power, the current, the voltage and the like of the power plant in real time. In the current application scene, 1 electric energy acquisition terminal is often used for acquiring and uploading electric energy meter data, the existing electric energy acquisition terminal is provided with 3 network ports and respectively connected to SIS (information system) systems in provincial dispatching, local dispatching and plants, and 3 RS485 ports are used for respectively acquiring electric energy meter data of a booster station and a unit. The common electric energy meters are all provided with 2 RS485 communication ports. In such a mode, when the acquisition terminal breaks down, the electric energy acquisition can be continued after the staff is required to perform rapid maintenance, so that the unreliability is increased. Aiming at the problems of the existing electric energy acquisition terminal arrangement method, a new electric energy acquisition system of a power plant needs to be provided.
SUMMERY OF THE UTILITY MODEL
The utility model provides a redundant collection system of power plant electric energy and power plant is provided, this redundant collection system of power plant electric energy has solved the not enough problem of current electric energy collection scheme reliability.
In order to achieve the above object, the embodiment of the utility model provides a power plant electric energy redundancy acquisition system, the power plant electric energy redundancy acquisition system includes: the system comprises a plurality of electric energy acquisition terminals and a dual-machine switcher in parallel communication connection with the plurality of electric energy acquisition terminals; each electric energy acquisition terminal is in communication connection with a scheduling master station; the double-machine switcher is used for synchronously acquiring the electric energy acquisition data uploaded by each electric energy acquisition terminal.
Optionally, the number of the electric energy acquisition terminals is 2.
Optionally, the electric energy collection terminals are in communication connection with each other.
Optionally, each electric energy acquisition terminal is in communication connection with the corresponding scheduling master station through the ethernet.
Optionally, each electric energy collecting terminal is in communication connection with the dual-computer switcher through RS 485.
Optionally, the dual-computer switcher is further connected with a plurality of electric energy meters.
Optionally, the dual-computer switcher is in communication connection with each electric energy meter through RS 485.
Optionally, the electric energy acquisition terminal is an ERTU electric energy acquisition terminal.
Optionally, each electric energy acquisition terminal is connected to the same SIS system together.
On the other hand, the utility model provides a power plant, the power plant disposes foretell power plant electric energy redundancy collection system.
Through the technical scheme, the existing deployment mode for constructing a single electric energy acquisition terminal is changed into a mode for deploying a plurality of electric energy acquisition terminals at the same time. And then, corresponding communication network design is carried out corresponding to the plurality of electric energy acquisition terminals, so that the plurality of electric energy acquisition terminals can synchronously operate. The reliability of electric energy collection is improved.
Other features and advantages of embodiments of the present invention will be described in detail in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments, but do not limit the embodiments. In the drawings:
fig. 1 is a system structure diagram of a power plant electric energy redundancy acquisition system provided by an embodiment of the present invention.
Detailed Description
The following describes in detail embodiments of the present invention with reference to the accompanying drawings. It is to be understood that the description herein is only intended to illustrate and explain embodiments of the present invention, and is not intended to limit embodiments of the present invention.
In the embodiments of the present invention, without the contrary explanation, the terms of orientation such as "upper, lower, left, and right" used herein generally refer to the orientation or position relationship shown in the drawings, or the orientation or position relationship that the utility model is usually placed when in use.
The terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
The terms "parallel", "perpendicular", etc. do not require that the components be absolutely parallel or perpendicular, but may be slightly inclined. For example, "parallel" merely means that the directions are more parallel relative to "perpendicular," and does not mean that the structures are necessarily perfectly parallel, but may be slightly tilted.
Furthermore, the terms "substantially", and the like are intended to indicate that the relative terms are not necessarily strictly required, but may have some deviation. For example: "substantially equal" does not mean absolute equality, but it is difficult to achieve absolute equality in actual production and operation, and certain deviations generally exist. Thus, in addition to absolute equality, "substantially equal" also includes the above-described case where there is some deviation. In this case, unless otherwise specified, terms such as "substantially", and the like are used in a similar manner to those described above.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The electric energy acquisition terminal is a remote acquisition, storage and remote transmission device. In the electric energy metering and charging automation system, an electric energy acquisition terminal is a communication center of electric energy data, and on one hand, the electric energy data output by a digital electric energy meter in a serial communication mode is acquired and stored; on the other hand, the acquired electric energy data is transmitted to a master station of the electric energy charging automation system through an uplink channel, and the status is very important.
In a power plant, the electric energy acquisition terminal is commonly used, has multiple functions of electric energy acquisition and modeling, data processing, remote transmission and the like, and is suitable for a metering center and the like to acquire and process information of a remote intelligent electric meter. In the existing power plant, an electric energy acquisition terminal is equipped to detect the electric quantity in real time so as to monitor the information of the power generation power, the current, the voltage and the like of the power plant in real time. In the current application scene, 1 electric energy acquisition terminal is often used for acquiring and uploading electric energy meter data, the existing electric energy acquisition terminal is provided with 3 network ports and respectively connected to SIS (information system) systems in provincial dispatching, local dispatching and plants, and 3 RS485 ports are used for respectively acquiring electric energy meter data of a booster station and a unit. The common electric energy meters are all provided with 2 RS485 communication ports. In such a mode, when the acquisition terminal breaks down, the electric energy acquisition can be continued after the staff is required to perform rapid maintenance, so that the unreliability is increased.
The method aims at solving the problems existing in the existing electric energy acquisition terminal arrangement method, namely, if an electric energy acquisition device acquisition terminal breaks down, an electric energy acquisition window period exists, and when data tracing and maintenance are subsequently carried out, the monitoring and judging results of related personnel can be influenced by the part of data. In order to realize complete data acquisition of a power plant, the whole system has the capability of acquiring electric energy under the condition that the electric energy acquisition terminal has a fault. Based on this technical purpose, the utility model discloses the scheme provides a redundant collection system of power plant electric energy, and the mode of deploying a plurality of electric energy collection terminals is revised as the mode of deploying simultaneously for current single electric energy collection terminal of structure. And then, corresponding communication network design is carried out corresponding to the plurality of electric energy acquisition terminals, so that the plurality of electric energy acquisition terminals can synchronously operate.
Referring to fig. 1, the present embodiment provides a system for redundantly collecting electric energy of a power plant, including: the system comprises a plurality of electric energy acquisition terminals and a dual-machine switcher in parallel communication connection with all the electric energy acquisition terminals; each electric energy acquisition terminal is in communication connection with a scheduling master station; the double-machine switcher is used for synchronously acquiring the electric energy acquisition data uploaded by each electric energy acquisition terminal.
The embodiment of the utility model provides an in, the utility model provides a redundant collection system of power plant's electric energy relates to a plurality of electric energy collection terminals, and there is not principal and subordinate's relation in these electric energy collection terminals, all can regard as main electric energy collection terminal, has the redundant electric energy collection terminal to the other side of counterpointing mutually. Because the electric energy collection terminals are respectively connected with corresponding scheduling networks, such as a provincial scheduling network and a local scheduling network, no matter one of the electric energy collection terminals is a terminal or the scheduling network has a fault, the other electric energy collection terminal can normally transmit corresponding data to the corresponding scheduling master station. The electric energy information of the whole system is prevented from being lost when a device matched with one electric energy acquisition terminal breaks down.
Preferably, the number of the electric energy acquisition terminals is 2.
The embodiment of the utility model provides an in, because there are two dispatch monitoring often in current power plant, save dispatch promptly and dispatch with ground, to these two dispatch schemes, preferably set up the quantity at electric energy collection terminal to 2. On one hand, each scheduling scheme can be guaranteed to have an independent electric energy acquisition terminal, on the other hand, the probability that two electric energy acquisition terminals simultaneously break down is considered to be too low, and on the premise that the reliability of a redundant system is guaranteed, equipment cost investment is reduced as much as possible.
Preferably, the electric energy collection terminals are communicatively connected to each other.
The embodiment of the utility model provides an in, though two electric energy collection terminals independent operation separately, but in order to guarantee that two electric energy collection terminal electric energy data collection are unanimous, need and know to possess corresponding oneself's correction ability, so the utility model discloses the scheme provides the port of communicating mutually for this kind of oneself's correction. Namely, the communication connection relation between the electric energy acquisition terminals is ensured.
Preferably, each electric energy acquisition terminal is in communication connection with the corresponding scheduling master station through the ethernet.
In particular, ethernet is one of the most prevalent computer networks in the real world. There are two types of ethernet: the first type is classical ethernet and the second type is switched ethernet, using a device called a switch to connect different computers. The classic Ethernet is in the original form of Ethernet, and the running speed is different from 3 to 10 Mbps; switched ethernet is a widely used ethernet network that can operate at high rates as 100, 1000, and 10000Mbps, and is presented in the form of fast ethernet, gigabit ethernet, and gigabit ethernet, respectively. The standard topology of ethernet is a bus topology, but the current fast ethernet (100 BASE-T, 1000BASE-T standard) uses switches for network connection and organization in order to minimize collisions, maximize the network speed and utilization efficiency that can be improved. The method has the advantages of low price and wide application, and completely meets the requirement of the electric energy acquisition terminal for uploading data.
Preferably, each electric energy acquisition terminal is in communication connection with the dual-computer switcher through RS 485.
In the embodiment of the utility model, the utility model discloses in the embodiment, the utility model discloses the electric energy collection terminal of operation under the mode all is the independent system to the main website, and an electric energy collection terminal breaks down, and another can accomplish seamless handover. Because the gateway electric energy meter is provided by national network companies and cannot provide double 485 interfaces, a double-machine switching board needs to be configured in the device, and synchronous data uploading of double electric energy acquisition terminals is guaranteed. For example, a KHCS-X series double-machine switching board is selected to automatically switch each electric energy acquisition terminal.
Preferably, the double-machine switcher is further connected with a plurality of electric energy meters.
Specifically, as is known above, the gateway electric energy meter is issued by the national network, and it is desired to implement the RS485 communication function, which is implemented directly on the basis of each electric energy meter, and a double-click switch needs to be added. Based on this, when the electric energy data is acquired, because a plurality of electric energy meters exist in the plant area, monitoring includes output electric energy of each unit, local use electric energy and the like, and when the complete data is acquired, the metering data of all the electric energy meters needs to be completely acquired. Therefore, as a transfer medium between the electric energy acquisition terminal and each electric energy meter, the double-machine switcher is also connected with a plurality of electric energy meters.
Preferably, the double-machine switcher is in communication connection with each electric energy meter through RS 485.
The embodiment of the utility model provides an in, for same communication standard for the duplex switch need not be the transcoding to information and handles, the utility model discloses the scheme all adopts RS485 communication at duplex switch both ends.
Preferably, the electric energy acquisition terminal is an ERTU electric energy acquisition terminal.
Preferably, all the electric energy acquisition terminals are connected to the same SIS system together.
In the embodiment of the present invention, the Safety instrument System, safety instrumentation System, is referred to as SIS for short; also known as Safety interlocking System (Safety interlocking System). The system is mainly an alarm and interlocking part in a plant control system, implements alarm action or adjustment or shutdown control on the detection result in the control system, and is an important component in automatic control of plant enterprises. The system has the advantages of wide coverage, high safety and self-diagnosis function, and can detect and prevent potential dangers. In a fault-tolerant multiple redundancy system, the SIS generally adopts a multiple redundancy structure to improve the hardware fault margin of the system, and the single fault cannot cause the loss of the safety function of the SIS. The self-diagnosis coverage rate is high, and the number of points needing to be checked is small when workers maintain the self-diagnosis coverage rate. The response speed is high, the response time from input change to output change is generally about 10-50 ms, and the response time of some small SISs is shorter. The safety design of the whole loop formed by the sensor and the execution element can be realized, and the monitoring functions of I/O short circuit, disconnection and the like are realized.
It comprises a sensor, a logical operator and final execution elements, i.e. a detection unit, a control unit and an execution unit. The SIS system can monitor the danger which appears or is hidden in the production process, send out alarm information or directly execute a preset program, immediately enter the operation, prevent the occurrence of accidents and reduce the harm and the influence brought by the accidents. The utility model discloses the scheme still with each electric energy acquisition terminal access to factory area SIS system, realize the self-monitoring and diagnostic function in the factory area, guarantee redundant system's steady operation.
The utility model discloses the scheme still provides a power plant, and this power plant disposes foretell power plant electric energy redundancy collection system.
Above has described in detail the optional implementation way of the embodiment of the present invention with reference to the attached drawings, however, the embodiment of the present invention is not limited to the specific details in the above implementation way, and in the technical idea scope of the embodiment of the present invention, it can be to the technical solution of the embodiment of the present invention carry out multiple simple variants, and these simple variants all belong to the protection scope of the embodiment of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the embodiments of the present invention do not separately describe various possible combinations.
Those skilled in the art will understand that all or part of the steps in the method according to the above embodiments may be implemented by a program, which is stored in a storage medium and includes several instructions to enable a single chip, a chip, or a processor (processor) to execute all or part of the steps in the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In addition, various different implementation manners of the embodiments of the present invention can be combined arbitrarily, and as long as it does not violate the idea of the embodiments of the present invention, it should be considered as the disclosure of the embodiments of the present invention.
Claims (10)
1. A power plant electric energy redundancy collection system, comprising:
the system comprises a plurality of electric energy acquisition terminals and a dual-machine switcher in parallel communication connection with the plurality of electric energy acquisition terminals;
each electric energy acquisition terminal is in communication connection with one scheduling master station;
the double-machine switcher is used for synchronously acquiring the electric energy acquisition data uploaded by each electric energy acquisition terminal.
2. The power plant electrical energy redundancy harvesting system according to claim 1, wherein the number of electrical energy harvesting terminals is 2.
3. The power plant electrical energy redundancy collection system of claim 1, wherein each electrical energy collection terminal is communicatively connected to each other.
4. The power plant electrical energy redundancy collection system of claim 1, wherein each electrical energy collection terminal is communicatively connected to its corresponding scheduling master station via ethernet.
5. The power plant electric energy redundancy collection system of claim 1, wherein each electric energy collection terminal is communicatively connected to the dual-machine switch via RS 485.
6. The power plant electric energy redundancy collection system of claim 1, wherein a plurality of electric energy meters are further connected to the dual-machine switch.
7. The power plant electric energy redundancy collection system of claim 6, wherein the dual-computer switch is communicatively connected to each electric energy meter via RS 485.
8. The power plant electrical energy redundancy collection system of claim 1, wherein the electrical energy collection terminal is an ERTU electrical energy collection terminal.
9. The power plant electrical energy redundancy collection system of claim 1, wherein each electrical energy collection terminal is commonly connected to the same SIS system.
10. A power plant characterized in that it is equipped with a power plant electric energy redundant acquisition system according to any of claims 1-9.
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| CN202222987767.0U CN218629969U (en) | 2022-11-09 | 2022-11-09 | Electric energy redundancy acquisition system of power plant and power plant |
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| CN202222987767.0U CN218629969U (en) | 2022-11-09 | 2022-11-09 | Electric energy redundancy acquisition system of power plant and power plant |
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