CN112271816A - Intelligent substation cluster measurement and control system and measurement and control method thereof - Google Patents
Intelligent substation cluster measurement and control system and measurement and control method thereof Download PDFInfo
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- 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
- H02J13/00006—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 information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00016—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 information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/22—Arrangements for detecting or preventing errors in the information received using redundant apparatus to increase reliability
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- 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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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
Abstract
The invention discloses an intelligent substation cluster measurement and control system and a measurement and control method thereof, wherein the system comprises a cluster measurement and control device; the cluster measurement and control device comprises a plurality of virtual measurement and control devices, each virtual measurement and control device comprises an NPI board used for receiving SV data and interactive GOOSE data, a communication board used for MMS network communication, an access board used for acquiring a hard access state and a CPU board used for logic calculation, the NPI board corresponds to each entity measurement and control device, and the virtual measurement and control devices are put into operation when the entity measurement and control devices are in fault or abnormal. The invention can solve the hidden trouble that the single-point fault causes data interruption and remote control failure in the measurement and control function after the fault of the current substation bay level measurement and control device.
Description
Technical Field
The invention relates to the field of measurement and control of intelligent substations, in particular to an intelligent substation cluster measurement and control system and a measurement and control method thereof.
Background
Compared with a traditional transformer substation, the intelligent transformer substation has many advantages, which are mainly reflected in that: (1) and digital signal transmission and processing are adopted, so that the method is wide in application range, high in precision, stable and efficient, and convenient for data sharing. The optical fiber is used as a digital transmission carrier and has the advantages of large transmission capacity, low loss, long distance, strong anti-interference capability, good lightning protection performance, economy, environmental protection and the like. (2) The IEC61850 protocol is comprehensively adopted, information and communication models are unified, a three-layer two-network layered architecture is adopted, digital acquisition and networked information exchange of transformer substation information are realized, single-set configuration is adopted for measurement and control and protection of voltage levels of 110kV and below, the hidden danger of function failure caused by single-point faults exists, the overall reliability is low, the requirement of unattended transformer substations cannot be completely met, and the safe and stable operation of a power system is seriously influenced.
In order to better adapt to the unattended requirement of a transformer substation, improve the safe and stable operation level of a power grid, improve the operation efficiency of the power grid and reduce the construction and operation costs, in the aspect of a transformer substation automation system, a transformer substation measurement and control device belongs to bay level equipment in a transformer substation secondary system and is core equipment of a bay level of the transformer substation automation system. The upper connection station control layer equipment comprises a monitoring background, a telecontrol device and the like; the lower connection process layer equipment comprises an intelligent terminal, a merging unit and the like, and plays a role in starting and stopping.
With the rapid development of power grid and computer technologies, data acquisition and processing capabilities are continuously enhanced, system functions are developed greatly, but the requirements of various levels of main substation systems on the reliability and timeliness of various types of information are not met completely. At present, the configuration requirements of secondary equipment in intelligent substations with different voltage grades in China are different, the substations with the voltage grades of 110kV and below adopt protection and measurement integrated configuration, and the substations with the voltage grades of 220kV and above adopt independently configured measurement and control devices. Generally, most transformer substations adopt a single set of measurement and control in consideration of cost factors, namely, only one set of measurement and control device is arranged at each interval. This brings certain hidden trouble for the safe and stable operation of transformer substation, has following problem.
(1) Low reliability of single set mode operation
Under the single set configuration mode, all interval measurement and control are not standby. When the interval measurement and control fails or the maintenance quits operation, the interval measurement and control function is lost due to no standby measurement and control, and serious threat is generated to the safety of remote centralized monitoring of the unattended transformer substation. In addition, a single set of mode has a large defect in the aspect of data reliability, and because only a single set of equipment is used for information acquisition, if abnormal data or data errors occur in a certain measurement and control, the error data cannot be found due to the fact that no data is compared. Therefore, the current single-set operation mode cannot fully support the rapid development of a future power grid. There is a strong need for development and innovation in information providing mechanisms.
(2) Measurement and control method for failure detection
For a single set of measurement and control operation mode, if the measurement and control fails, the failure needs to be found quickly, and the network operation time of the failure measurement and control is reduced. However, at present, no equipment or method for rapidly finding alarm fault measurement and control exists, and whether the equipment has a fault or not is judged only by a manual mode. If faults such as network disconnection and the like are easy to find, the judgment time is short, and if faults such as error data and the like are difficult to find, the judgment time completely depends on the technical level and experience of operators, so that the safe operation of a remote regulation and control center and a transformer substation monitoring system is seriously influenced.
As main equipment for collecting operation data information of the intelligent substation and executing primary equipment operation control, the measurement and control device is an important basis for realizing safe and stable operation of the system. However, in the aspect of improving the reliability of the measurement and control function of the transformer substation, the industry mainly refers to the idea of protection dualization, discusses and researches a double-set configuration scheme of the measurement and control device, but due to the problems of insufficient equipment standardization, overhigh double-set configuration cost, complex system operation and maintenance and the like, a scheme for engineering implementation and popularization and application is not formed all the time, and the problem of the loss of the redundancy standby mechanism of the measurement and control device of the transformer substation is not solved effectively.
In the aspect of research on measurement and control function redundancy technology, currently, the measurement and control devices of the intelligent transformer substation running in China are all configured in a single set, measurement and control functions are realized at intervals, and function redundancy is lacked. In China, the measurement and control function redundancy is also researched, the function redundancy is realized by adopting the interval measurement and control with the double configuration, but the simple double configuration increases the equipment quantity and increases the operation and maintenance workload and the investment cost. The 2012 national grid company provides a new-generation intelligent substation for research and construction, the new-generation intelligent substation performs function integration in an interval, and a multifunctional measurement and control mode integrating measurement and control, PMU and metering functions is adopted, so that the mode only reduces the number of devices in the station, the self-healing of the interval measurement and control function is not realized, and the integration of multiple specialties also increases the difficulty of site operation and maintenance. Since 2015, a more extensive and intensive research is carried out on integrated measurement and control, and a multi-interval measurement and control centralized scheme based on a grouping principle is provided, wherein measurement and control function redundancy is realized through integrated measurement and control dualized configuration, but dynamic deployment of interval functions cannot be realized based on a mode of interval function similar to related integration, and the operation convenience and the reconstruction and expansion convenience are poor.
At present, most of foreign mainstream manufacturers fade the concept of the measurement and control device and emphasize function customization. Measurement, control and synchronization functions can be configured on the unified platform according to user requirements, the type and number of IO can be configured, and even a protection function can be configured. Such as an REC670 device from ABB, a C90 device from GE, and so forth. The simple integration of the measurement and control and protection module cannot adapt to data access under a complex power grid on one hand, and provides high requirements for field configuration work on the other hand, which is not favorable for large-scale popularization and application.
Disclosure of Invention
In view of this, an object of the embodiments of the present invention is to provide an intelligent substation cluster measurement and control system and a measurement and control method thereof, which can solve the problem that a measurement and control function of a substation bay level has hidden troubles of data interruption and remote control failure due to a single point fault when a measurement and control device of the substation bay level is configured as a single set at present.
In a first aspect, an embodiment of the present invention provides an intelligent substation cluster measurement and control system, including an entity measurement and control device, and further including a cluster measurement and control device.
The cluster measurement and control device comprises a plurality of virtual measurement and control devices, each virtual measurement and control device corresponds to each entity measurement and control device, and the cluster measurement and control devices are put into operation when the entity measurement and control devices are in fault or abnormal.
With reference to the first aspect, an embodiment of the present invention provides a first possible implementation manner of the first aspect, where the cluster measurement and control device further includes:
and the distributor is used for distributing SV data and GOOSE data of the process layer of the entity measurement and control device to the corresponding process layer of the virtual measurement and control device.
And the concentrator is used for carrying out centralized processing on the SV data and the GOOSE data of the process layer of each virtual measurement and control device and sending the SV data and the GOOSE data to the process layer of the entity measurement and control device.
With reference to the first aspect, an embodiment of the present invention provides a second possible implementation manner of the first aspect, where each virtual measurement and control device includes:
and the data communication unit is used for connecting the corresponding process layer of the entity measurement and control device and acquiring measurement and control original data.
And the logic calculation unit is used for calculating and logically processing the acquired measurement and control original data.
And the information management unit is used for communicating with the station control layer of the entity measurement and control device.
The cluster measurement and control device is used for receiving SV data and interacting GOOSE data through the NPI board, carrying out MMS network communication through the communication board, carrying out hard open state acquisition through the open board, and carrying out logic calculation through the CPU board.
With reference to the first aspect, an embodiment of the present invention provides a third possible implementation manner of the first aspect, where the virtual measurement and control device uses ICD configuration, CID configuration, interlocking rule, operation parameter, and communication parameter of the entity measurement and control device.
The communication parameters comprise IP addresses, multicast addresses and APPID of a GOOSE control block at a process layer.
Wherein the ICD is configured to describe a specific function of a device.
The CID configuration is used to materialize certain information of the ICD file, such as translating an IP address to an address where an instance of the device exists.
The client communicating with the device will regard it as the original entity measurement and control device.
In a second aspect, an embodiment of the present invention further provides an intelligent substation cluster measurement and control method using the intelligent substation cluster measurement and control device, where the method includes:
and respectively corresponding each virtual measurement and control device to each entity measurement and control device.
And starting the corresponding virtual measurement and control devices according to the running state of each entity measurement and control device.
And distributing SV data and GOOSE data of the process layer of the entity measurement and control device to the corresponding process layer of the virtual measurement and control device.
And processing SV data and GOOSE data of the process layer of each virtual measurement and control device in a centralized manner, and sending the SV data and the GOOSE data to the process layer of the entity measurement and control device.
With reference to the second aspect, an embodiment of the present invention provides a first possible implementation manner of the second aspect, where the starting, according to an operation state of each entity measurement and control device, the corresponding virtual measurement and control device includes:
and when the virtual measurement and control device is abnormal, the virtual measurement and control device is in a fault state, and the operation lamp is turned off.
When the entity measurement and control device is on line and the corresponding virtual measurement and control device is normal, the virtual measurement and control device is in a hot standby state, and the entity measurement and control device completes the corresponding measurement and control function.
And when the entity measurement and control device is not on line due to the fault and the corresponding virtual measurement and control device is in a hot standby state, switching to an operation state.
With reference to the second aspect, an embodiment of the present invention provides a second possible implementation manner of the second aspect, where when the virtual measurement and control device is in a "failure" state or a "hot standby" state, a station control layer and a process layer network port communication function of the virtual measurement and control device are closed, and normal communication is exited.
With reference to the second aspect, an embodiment of the present invention provides a third possible implementation manner of the second aspect, where the virtual measurement and control device determines, by monitoring the sending states of GOOSE messages in a process layer and a station control layer in real time, that the entity measurement and control device is "running" online or "failed" online.
And if the virtual measurement and control device simultaneously receives GOOSE messages of a process layer and a station control layer of the entity measurement and control device, judging that the entity measurement and control device is in an 'operation' online state.
If the virtual measurement and control device does not receive the GOOSE messages of the process layer and the station control layer of the entity measurement and control device, delaying t, resetting the 'running' online state, and judging that the entity measurement and control device is in a 'fault' offline state.
And t is 10 s.
The embodiment of the invention has the beneficial effects that:
the intelligent substation cluster measurement and control function adopts a mode of single-interval entity measurement and control devices and cluster measurement and control devices, each virtual measurement and control device in the cluster measurement and control device corresponds to a single-interval entity measurement and control unit of the intelligent substation one by one, each virtual measurement and control device in the cluster measurement and control device adopts the same model, parameters, configuration and the like as the entity measurement and control device, when the entity measurement and control unit fails, the virtual measurement and control device is automatically switched to the corresponding virtual measurement and control device in the cluster measurement and control device, the problem that the measurement and control configuration of a bay level is single and has no redundancy is solved, the time of measurement and control function failure caused by equipment failure is shortened, and.
The invention adopts the design facing the interval, virtualizes the entity measurement and control device, ensures that the virtual measurement and control device is equivalent to the entity measurement and control device, automatically puts the corresponding virtual measurement and control device in the cluster measurement and control device into operation when the entity measurement and control device fails or is abnormal, solves the problem that the corresponding interval of the entity measurement and control device has no measurement and control function in the process of maintenance, and realizes the centralized backup of the measurement and control function of the intelligent transformer substation.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
The following describes the measurement and control system and the measurement and control method of the intelligent substation cluster in detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic view of a virtualization implementation of a cluster measurement and control function of an intelligent substation cluster measurement and control system according to the present invention;
FIG. 2 is a hardware architecture diagram of the intelligent substation cluster measurement and control system of the present invention;
fig. 3 is a schematic diagram of process level network processing of the intelligent substation cluster measurement and control system of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein can be arranged and designed in a wide variety of different configurations.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
Referring to fig. 1 to fig. 3, a first embodiment of the present invention provides an intelligent substation cluster measurement and control system, which includes an entity measurement and control device and a cluster measurement and control device.
The cluster measurement and control device comprises a plurality of virtual measurement and control devices, each virtual measurement and control device corresponds to each entity measurement and control device, and the cluster measurement and control devices are put into operation when the entity measurement and control devices are in fault or abnormal.
The cluster measurement and control device further comprises:
and the distributor is used for distributing SV data and GOOSE data of the process layer of the entity measurement and control device to the corresponding process layer of the virtual measurement and control device.
And the concentrator is used for carrying out centralized processing on the SV data and the GOOSE data of the process layer of each virtual measurement and control device and sending the SV data and the GOOSE data to the process layer of the entity measurement and control device.
Each virtual measurement and control device comprises:
and the data communication unit is used for connecting the corresponding process layer of the entity measurement and control device and acquiring measurement and control original data.
And the logic calculation unit is used for calculating and logically processing the acquired measurement and control original data.
And the information management unit is used for communicating with the station control layer of the entity measurement and control device.
The cluster measurement and control device is used for receiving SV data and interacting GOOSE data through the NPI board, carrying out MMS network communication through the communication board, carrying out hard open state acquisition through the open board, and carrying out logic calculation through the CPU board.
The cluster measurement and control device adopts a full-bus design and comprises a high-speed data bus, an intelligent I/O (input/output) bus, a timing bus and a 100Mbps Ethernet management bus. The NPI board, the CPU board and the communication board can complete data sharing through the exchange chip installed on the backboard. The cluster measurement and control device adopts a multi-core CPU to process a large amount of measurement and control collected data, a data communication unit is connected with a high-speed process layer switch to obtain a plurality of spaced measurement and control original data, and the data are preprocessed and then transmitted to a logic calculation unit through an internal high-speed bus to complete high-precision measurement and control data calculation. And the information management unit completes communication with the station control layer.
The virtual measurement and control device uses ICD configuration, CID configuration, interlocking rule, operation parameter and communication parameter of the entity measurement and control device.
The communication parameters comprise IP addresses, multicast addresses and APPID of a GOOSE control block at a process layer.
The client communicating with the device will regard it as the original entity measurement and control device.
The cluster measurement and control device adopts a technology that one port binds a plurality of IP addresses, and the virtual measurement and control device uses the IP addresses of the cluster measurement and control device when switching from a standby state to an operating state. In order to prevent the IP address conflict, the cluster measurement and control device closes the ports of the switches connected with the fault or abnormal measurement and control device through the SNMP protocol, and isolates the ports from the network.
Referring to fig. 1 to fig. 3, a second embodiment of the present invention provides an intelligent substation cluster measurement and control method using the intelligent substation cluster measurement and control device, including:
and respectively corresponding each virtual measurement and control device to each entity measurement and control device.
And starting the corresponding virtual measurement and control devices according to the running state of each entity measurement and control device.
And distributing SV data and GOOSE data of the process layer of the entity measurement and control device to the corresponding process layer of the virtual measurement and control device.
And processing SV data and GOOSE data of the process layer of each virtual measurement and control device in a centralized manner, and sending the SV data and the GOOSE data to the process layer of the entity measurement and control device.
According to each running state of the entity measurement and control device, the corresponding virtual measurement and control device is started, and the method comprises the following steps:
and when the virtual measurement and control device is abnormal, the virtual measurement and control device is in a fault state, and the operation lamp is turned off.
When the entity measurement and control device is on line and the corresponding virtual measurement and control device is normal, the virtual measurement and control device is in a hot standby state, and the entity measurement and control device completes the corresponding measurement and control function.
And when the entity measurement and control device is not on line due to the fault and the corresponding virtual measurement and control device is in a hot standby state, switching to an operation state.
And when the virtual measurement and control device is in a fault state or a hot standby state, the network port communication functions of the station control layer and the process layer of the virtual measurement and control device are closed, and normal communication is quitted.
The virtual measurement and control device judges whether the entity measurement and control device is on-line or off-line due to the fact that the virtual measurement and control device monitors the sending state of the GOOSE message of the process layer and the station control layer in real time.
And if the virtual measurement and control device simultaneously receives GOOSE messages of a process layer and a station control layer of the entity measurement and control device, judging that the entity measurement and control device is in an 'operation' online state.
If the virtual measurement and control device does not receive the GOOSE messages of the process layer and the station control layer of the entity measurement and control device, delaying t, resetting the 'running' online state, and judging that the entity measurement and control device is in a 'fault' offline state.
And t is 10 s.
The embodiment of the invention aims to protect an intelligent substation cluster measurement and control system and a measurement and control method thereof, and has the following effects:
the intelligent substation cluster measurement and control function adopts a mode of single-interval entity measurement and control devices and cluster measurement and control devices, each virtual measurement and control device in the cluster measurement and control device corresponds to a single-interval entity measurement and control unit of the intelligent substation one by one, each virtual measurement and control device in the cluster measurement and control device adopts the same model, parameters, configuration and the like as the entity measurement and control device, when the entity measurement and control unit fails, the virtual measurement and control device is automatically switched to the corresponding virtual measurement and control device in the cluster measurement and control device, the problem that the measurement and control configuration of a bay level is single and has no redundancy is solved, the time of measurement and control function failure caused by equipment failure is shortened, and.
The invention adopts the design facing the interval, virtualizes the entity measurement and control device, ensures that the virtual measurement and control device is equivalent to the entity measurement and control device, automatically puts the corresponding virtual measurement and control device in the cluster measurement and control device into operation when the entity measurement and control device fails or is abnormal, solves the problem that the corresponding interval of the entity measurement and control device has no measurement and control function in the process of maintenance, and realizes the centralized backup of the measurement and control function of the intelligent transformer substation.
The computer program product of the intelligent substation cluster measurement and control system and the measurement and control method thereof provided by the embodiment of the invention comprises a computer readable storage medium storing program codes, instructions included in the program codes can be used for executing the method in the foregoing method embodiment, and specific implementation can refer to the method embodiment, which is not described herein again.
Specifically, the storage medium can be a general storage medium, such as a mobile disk, a hard disk and the like, and when a computer program on the storage medium is operated, the intelligent substation cluster measurement and control method can be executed, so that the problems that the measurement and control device on the bay level of the existing substation is in a single-set configuration, and the hidden troubles of data interruption and remote control failure caused by single-point failure exist in the measurement and control function after the device fails can be solved.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a non-volatile computer-readable storage medium executable by a processor. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. The intelligent substation cluster measurement and control system comprises an entity measurement and control device and is characterized by also comprising a cluster measurement and control device;
the cluster measurement and control device comprises a plurality of virtual measurement and control devices, each virtual measurement and control device comprises an NPI board used for receiving SV data and interactive GOOSE data, a communication board used for MMS network communication, an access board used for acquiring a hard access state and a CPU board used for logic calculation, the NPI board corresponds to each entity measurement and control device, and the virtual measurement and control devices are put into operation when the entity measurement and control devices are in fault or abnormal.
2. The intelligent substation cluster measurement and control device of claim 1, further comprising:
the distributor is used for distributing SV data and GOOSE data of a process layer of the entity measurement and control device to a corresponding process layer of the virtual measurement and control device;
and the concentrator is used for carrying out centralized processing on the SV data and the GOOSE data of the process layer of each virtual measurement and control device and sending the SV data and the GOOSE data to the process layer of the entity measurement and control device.
3. The intelligent substation cluster measurement and control device of claim 1, wherein each of the virtual measurement and control devices comprises:
the data communication unit is used for connecting the corresponding process layer of the entity measurement and control device and acquiring measurement and control original data;
the logic calculation unit is used for calculating and logically processing the acquired measurement and control original data;
and the information management unit is used for communicating with the station control layer of the entity measurement and control device.
4. The intelligent substation cluster measurement and control device of claim 1,
the virtual measurement and control device uses ICD configuration, CID configuration, interlocking rule, operation parameter and communication parameter of the entity measurement and control device;
the communication parameters comprise IP addresses, multicast addresses and APPID of a GOOSE control block at a process layer.
5. An intelligent substation cluster measurement and control method applying the intelligent substation cluster measurement and control device according to any one of claims 1-4, comprising:
respectively corresponding each virtual measurement and control device to each entity measurement and control device;
starting the corresponding virtual measurement and control devices according to the running state of each entity measurement and control device;
the SV data and the GOOSE data of the process layer of the entity measurement and control device are distributed to the corresponding process layer of the virtual measurement and control device;
and processing SV data and GOOSE data of the process layer of each virtual measurement and control device in a centralized manner, and sending the SV data and the GOOSE data to the process layer of the entity measurement and control device.
6. The intelligent substation cluster measurement and control method according to claim 5, wherein the starting of the corresponding virtual measurement and control device according to the operating state of each entity measurement and control device comprises:
when the virtual measurement and control device is abnormal, the virtual measurement and control device is in a fault state, and the operation lamp is turned off;
when the entity measurement and control device is on line and the corresponding virtual measurement and control device is normal, the virtual measurement and control device is in a hot standby state, and the entity measurement and control device completes the corresponding measurement and control function;
and when the entity measurement and control device is not on line due to the fault and the corresponding virtual measurement and control device is in a hot standby state, switching to an operation state.
7. The intelligent substation cluster measurement and control method according to claim 6,
and when the virtual measurement and control device is in a fault state or a hot standby state, the network port communication functions of the station control layer and the process layer of the virtual measurement and control device are closed, and normal communication is quitted.
8. The intelligent substation cluster measurement and control method according to claim 6, wherein the virtual measurement and control device judges whether the entity measurement and control device is "running" on-line or "failure" off-line by monitoring the sending state of GOOSE messages of a process layer and a station control layer in real time;
if the virtual measurement and control device simultaneously receives GOOSE messages of a process layer and a station control layer of the entity measurement and control device, judging that the entity measurement and control device is in an 'operation' online state;
if the virtual measurement and control device does not receive the GOOSE messages of the process layer and the station control layer of the entity measurement and control device, delaying t, resetting the 'running' online state, and judging that the entity measurement and control device is in a 'fault' offline state.
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