CN111884862A - Performance optimization method of secondary system of energy storage power station - Google Patents
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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
- H04L41/04—Network management architectures or arrangements
- H04L41/044—Network management architectures or arrangements comprising hierarchical management structures
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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
- H02J13/00028—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 involving the use of Internet protocols
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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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
-
- 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
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
- H04L41/0823—Configuration setting characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability
-
- 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
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/163—In-band adaptation of TCP data exchange; In-band control procedures
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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
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40228—Modbus
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/4026—Bus for use in automation systems
Abstract
The invention discloses a performance optimization method of a secondary system of an energy storage power station, which comprises the steps of carrying out hierarchical division on the secondary system of the energy storage power station; carrying out comprehensive optimization according to the obtained hierarchical division result; and comprehensively optimizing link layers among all layers of the secondary system of the energy storage power station to obtain a final optimization result. The performance optimization method of the secondary system of the energy storage power station, provided by the invention, provides a corresponding optimization design method for each component and a communication link of the secondary system of the energy storage power station, so that the communication capacity of each level and the data collection and transmission capacity can be improved, the comprehensive performance of the secondary system of the whole energy storage power station is correspondingly improved, and the method is high in reliability, good in practicability, rapid and stable.
Description
Technical Field
The invention belongs to the field of electrical automation, and particularly relates to a performance optimization method for a secondary system of an energy storage power station.
Background
With the development of economic technology and the improvement of living standard of people, electric energy becomes essential secondary energy in production and life of people, and brings endless convenience to production and life of people. Therefore, stable and reliable operation of the power system becomes one of the most important tasks of the power system.
Meanwhile, as new energy power generation systems such as wind energy and solar energy are connected to a power grid, the output of the new energy power generation systems is unstable, so that the safe and stable operation of the power grid faces huge challenges. Energy storage technology is considered as an important solution for solving the problem of high-proportion new energy access and a key support technology of a smart grid, and therefore the energy storage technology is widely applied in recent years.
Due to the wide application of the energy storage system, the primary system and the secondary system of the energy storage power station are larger and more complex. However, in the implemented power grid side energy storage project, a conventional copying and splicing mode is usually adopted in the design of a secondary system, and scientific consideration for the optimal application effect is lacked, so that the energy storage power station has poor effect and low universality in the specific application process.
Disclosure of Invention
The invention aims to provide a performance optimization method of a secondary system of an energy storage power station, which has high reliability, good practicability, rapidness and stability.
The invention provides a performance optimization method of a secondary system of an energy storage power station, which comprises the following steps:
s1, carrying out hierarchical division on a secondary system of an energy storage power station;
s2, carrying out comprehensive optimization according to the hierarchical division result obtained in the step S1;
and S3, comprehensively optimizing link layers among all layers of the secondary system of the energy storage power station to obtain a final optimization result.
Step S1, the hierarchical division of the secondary system of the energy storage power station is specifically performed by dividing the secondary system of the energy storage power station into the following hierarchies:
and (3) intelligent equipment layer: the intelligent communication module comprises energy storage system forming equipment and a communication network;
data collection transport layer: the communication module comprises a hardware interface transmitted by the intelligent equipment layer communication networking;
in-situ monitoring layer: the system comprises modules with functions of communication receiving and forwarding, data acquisition, data storage, data processing, interface display, power instruction receiving and power distribution;
a central monitoring layer: the method is used for realizing overall control of the energy storage power station.
The intelligent equipment layer specifically comprises a battery management system, an industrial precise air conditioner controller, a smoke sensing module and a dry contact remote signaling module.
The data collection transmission layer specifically comprises a serial port processing interface, a dry contact processing interface, an Ethernet processing interface and an external Ethernet interface.
The in-situ monitoring layer specifically comprises a communication processing module, a data processing module, a logic processing module and a client module.
The central monitoring layer specifically comprises a telecontrol RTU module with an instruction response function, a logic operation module, a communication processing module, a data storage module and a client module.
And S2, performing comprehensive optimization according to the hierarchical division result obtained in the step S1, specifically performing comprehensive optimization design of a communication architecture, a communication medium and a communication protocol.
Performing comprehensive optimization according to the hierarchical division result obtained in the step S1, specifically performing comprehensive optimization by using the following steps:
A. and (3) optimizing design of an equipment layer:
deleting an intermediate processing module between a cell management module and a main control module in the battery management system, thereby reducing communication nodes and improving communication speed; in the logic processing, the action request and action confirmation links of the intermediate module are reduced, so that the system time delay is reduced; finally, the limitation of a data communication processing flow caused by bus communication and a communication protocol in the battery management system is optimized;
B. optimizing and designing a data collection transmission layer:
the main control module of the battery management system is used as a unified outlet of the energy storage subunit and a management unit in the container; meanwhile, the temperature control, fire control and smoke sensing information is collected and processed uniformly, and then the processed collected information is transmitted to a local monitoring system;
C. optimizing design of an in-situ monitoring layer:
the on-site monitoring system accesses communication data of a plurality of energy storage containers and performs protocol processing; classifying different granularities according to the importance of the collected data, and performing interface separation and communication channel separation on a control instruction frame and a data collection frame;
D. optimizing design of a central monitoring layer:
and adding a communication protocol and a communication mode in the internet into the energy storage electric energy application.
Step S3, where the comprehensive optimization is performed on the link layer between each layer of the secondary system of the energy storage power station, specifically, the comprehensive optimization is performed by using the following steps:
within 100 meters or within an Ethernet relay range, Ethernet networking is adopted, a modbus tcp communication protocol is applied, and an IEC104 communication protocol is adopted with a telecontrol master station;
in the range of 5000 meters, a networking mode of combining an Ethernet with an optical fiber ring network is adopted, a modbus tcp communication protocol is applied, and an IEC104 communication protocol is adopted with a telecontrol master station;
when the distance exceeds 5000 meters or the region limit, a 4G wireless communication mode is adopted, and a modbus tcp communication protocol is applied;
when the energy storage power station participates in the grid-assisted frequency modulation, a networking mode of directly connecting control links through optical fibers is adopted, and the fast message type in IEC61850 is adopted;
when the energy storage power station is interconnected with an industrial park and an internet platform, an mqtt or opc ua protocol is selected;
the control instruction adopts optical fiber or Ethernet networking and adopts the type of fast message; the data acquisition selects Ethernet or wireless networking, and adopts the message type based on the Ethernet.
The performance optimization method of the secondary system of the energy storage power station, provided by the invention, provides a corresponding optimization design method for each component and a communication link of the secondary system of the energy storage power station, so that the communication capacity of each level and the data collection and transmission capacity can be improved, the comprehensive performance of the secondary system of the whole energy storage power station is correspondingly improved, and the method is high in reliability, good in practicability, rapid and stable.
Drawings
FIG. 1 is a schematic process flow diagram of the process of the present invention.
Detailed Description
FIG. 1 is a schematic flow chart of the method of the present invention: the invention provides a performance optimization method of a secondary system of an energy storage power station, which comprises the following steps:
s1, carrying out hierarchical division on a secondary system of an energy storage power station; the method specifically comprises the following steps of:
and (3) intelligent equipment layer: the intelligent communication module comprises energy storage system forming equipment and a communication network; the intelligent equipment layer specifically comprises a battery management system, an industrial precise air conditioner controller, a smoke sensing module and a dry contact remote signaling module;
data collection transport layer: the communication module comprises a hardware interface transmitted by the intelligent equipment layer communication networking; the data collection transmission layer specifically comprises a serial port processing interface, a dry contact point processing interface, an Ethernet processing interface and an Ethernet interface with the outside;
in-situ monitoring layer: the system comprises modules with functions of communication receiving and forwarding, data acquisition, data storage, data processing, interface display, power instruction receiving and power distribution; the in-place monitoring layer specifically comprises a communication processing module, a data processing module, a logic processing module and a client module;
a central monitoring layer: the system is used for realizing integral control on the energy storage power station; the central monitoring layer specifically comprises a telecontrol RTU module with an instruction response function, a logic operation module, a communication processing module, a data storage module and a client module;
s2, carrying out comprehensive optimization according to the hierarchical division result obtained in the step S1; specifically, the comprehensive optimization design of a communication architecture, a communication medium and a communication protocol is carried out:
A. and (3) optimizing design of an equipment layer:
deleting an intermediate processing module between a cell management module and a main control module in the battery management system, thereby reducing communication nodes and improving communication speed; in the logic processing, the action request and action confirmation links of the intermediate module are reduced, so that the system time delay is reduced; finally, the limitation of a data communication processing flow caused by bus communication and a communication protocol in the battery management system is optimized;
B. optimizing and designing a data collection transmission layer:
the main control module of the battery management system is used as a unified outlet of the energy storage subunit and a management unit in the container; meanwhile, the temperature control, fire control and smoke sensing information is collected and processed uniformly, and then the processed collected information is transmitted to a local monitoring system;
C. optimizing design of an in-situ monitoring layer:
the on-site monitoring system accesses communication data of a plurality of energy storage containers and performs protocol processing; classifying different granularities according to the importance of the collected data, and performing interface separation and communication channel separation on a control instruction frame and a data collection frame;
D. optimizing design of a central monitoring layer:
adding a communication protocol and a communication mode in the internet into the energy storage electric energy application;
s3, comprehensively optimizing link layers among all layers of the secondary system of the energy storage power station to obtain a final optimization result; specifically, the method comprises the following steps of:
within 100 meters or within an Ethernet relay range, Ethernet networking is adopted, a modbus tcp communication protocol is applied, and an IEC104 communication protocol is adopted with a telecontrol master station;
in the range of 5000 meters, a networking mode of combining an Ethernet with an optical fiber ring network is adopted, a modbus tcp communication protocol is applied, and an IEC104 communication protocol is adopted with a telecontrol master station;
when the distance exceeds 5000 meters or the region limit, a 4G wireless communication mode is adopted, and a modbus tcp communication protocol is applied;
when the energy storage power station participates in the grid-assisted frequency modulation, a networking mode of directly connecting control links through optical fibers is adopted, and the fast message type in IEC61850 is adopted;
when the energy storage power station is interconnected with an industrial park and an internet platform, an mqtt or opc ua protocol is selected;
the control instruction adopts optical fiber or Ethernet networking and adopts the type of fast message; the data acquisition selects Ethernet or wireless networking, and adopts the message type based on the Ethernet.
Claims (9)
1. A performance optimization method for a secondary system of an energy storage power station comprises the following steps:
s1, carrying out hierarchical division on a secondary system of an energy storage power station;
s2, carrying out comprehensive optimization according to the hierarchical division result obtained in the step S1;
and S3, comprehensively optimizing link layers among all layers of the secondary system of the energy storage power station to obtain a final optimization result.
2. The method for optimizing the performance of the secondary system of the energy storage power station as claimed in claim 1, wherein the step S1 is performed by hierarchical division of the secondary system of the energy storage power station, specifically, the secondary system of the energy storage power station is divided into the following hierarchies:
and (3) intelligent equipment layer: the intelligent communication module comprises energy storage system forming equipment and a communication network;
data collection transport layer: the communication module comprises a hardware interface transmitted by the intelligent equipment layer communication networking;
in-situ monitoring layer: the system comprises modules with functions of communication receiving and forwarding, data acquisition, data storage, data processing, interface display, power instruction receiving and power distribution;
a central monitoring layer: the method is used for realizing overall control of the energy storage power station.
3. The method of claim 2, wherein the smart device layer comprises a battery management system, an industrial precision air conditioning controller, a smoke sensing module, and a dry contact telemetry module.
4. The method for optimizing the performance of the energy storage power station secondary system as claimed in claim 2, wherein the data collection and transmission layer specifically comprises a serial port processing interface, a dry contact processing interface, an ethernet processing interface and an ethernet interface with an external interface.
5. The method of claim 2, wherein the in-situ monitoring layer comprises a communication processing module, a data processing module, a logic processing module and a client module.
6. The method for optimizing the performance of the secondary system of the energy storage power station as claimed in claim 2, wherein the central monitoring layer comprises a telecontrol RTU module with an instruction response function, a logic operation module, a communication processing module, a data storage module and a client module.
7. The method of claim 1, wherein the step S2 is performed by performing comprehensive optimization according to the hierarchical division result obtained in the step S1, specifically by performing comprehensive optimization design of a communication architecture, a communication medium, and a communication protocol.
8. The method for optimizing the performance of the secondary system of the energy storage power station as claimed in claim 7, wherein the comprehensive optimization is performed according to the hierarchical division result obtained in step S1, specifically by performing the comprehensive optimization by using the following steps:
A. and (3) optimizing design of an equipment layer:
deleting an intermediate processing module between a cell management module and a main control module in the battery management system, thereby reducing communication nodes and improving communication speed; in the logic processing, the action request and action confirmation links of the intermediate module are reduced, so that the system time delay is reduced; finally, the limitation of a data communication processing flow caused by bus communication and a communication protocol in the battery management system is optimized;
B. optimizing and designing a data collection transmission layer:
the main control module of the battery management system is used as a unified outlet of the energy storage subunit and a management unit in the container; meanwhile, the temperature control, fire control and smoke sensing information is collected and processed uniformly, and then the processed collected information is transmitted to a local monitoring system;
C. optimizing design of an in-situ monitoring layer:
the on-site monitoring system accesses communication data of a plurality of energy storage containers and performs protocol processing; classifying different granularities according to the importance of the collected data, and performing interface separation and communication channel separation on a control instruction frame and a data collection frame;
D. optimizing design of a central monitoring layer:
and adding a communication protocol and a communication mode in the internet into the energy storage electric energy application.
9. The method for optimizing the performance of the secondary system of the energy storage power station as claimed in any one of claims 1 to 8, wherein the step S3 is performed by comprehensively optimizing link layers between layers of the secondary system of the energy storage power station, specifically by performing comprehensive optimization by using the following steps:
within 100 meters or within an Ethernet relay range, Ethernet networking is adopted, a modbus tcp communication protocol is applied, and an IEC104 communication protocol is adopted with a telecontrol master station;
in the range of 5000 meters, a networking mode of combining an Ethernet with an optical fiber ring network is adopted, a modbus tcp communication protocol is applied, and an IEC104 communication protocol is adopted with a telecontrol master station;
when the distance exceeds 5000 meters or the region limit, a 4G wireless communication mode is adopted, and a modbus tcp communication protocol is applied;
when the energy storage power station participates in the grid-assisted frequency modulation, a networking mode of directly connecting control links through optical fibers is adopted, and the fast message type in IEC61850 is adopted;
when the energy storage power station is interconnected with an industrial park and an internet platform, an mqtt or opc ua protocol is selected;
the control instruction adopts optical fiber or Ethernet networking and adopts the type of fast message; the data acquisition selects Ethernet or wireless networking, and adopts the message type based on the Ethernet.
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Application publication date: 20201103 |