CN106300684A - A kind of intelligent integral towards transformer station's standby power system monitors method - Google Patents
A kind of intelligent integral towards transformer station's standby power system monitors method Download PDFInfo
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- 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
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- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/18—Systems supporting electrical power generation, transmission or distribution using switches, relays or circuit breakers, e.g. intelligent electronic devices [IED]
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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
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- 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
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Abstract
Description
技术领域technical field
本发明属于电力系统信息化技术领域,更为具体地讲,涉及一种面向变电站备用电源系统的智能一体化监控方法。The invention belongs to the technical field of power system informatization, and more specifically relates to an intelligent integrated monitoring method for substation backup power systems.
背景技术Background technique
传统的变电站备用电源管理系统,其设备由不同厂家生产、安装、调试,存在彼此通信规约不兼容,数据信息共享性差和自动化程度低等问题。此外,系统监控信息不完整,仅实现了设备基本“遥测”、“遥信”参数的监测,并未实现智能变电站的“遥控”功能。通过对目前应用的变电站备用电源监控系统的仔细调研和分析,总结出以下问题:(1)系统在线监控不完整。现有一体化电源监控系统主要针对各装置设备的基本参数进行在线监控,并未考虑对母线馈线、逆变器、整流器等模块的在线监控。在实际运行中,一体化电源监控系统不完整,会产生严重的后果,比如母线馈线的断路器跳闸,保护及自动装置因所处运行环境温度过高而死机,当系统出现故障时,保护及自动装置可能拒动,发生越级跳闸,引发事故,造成经济财产损失。(2)自动化程度不高。一体化电源系统各子系统设备由不同供应商生产、安装、调试,彼此间的通信规约一般不兼容,数据信息难以共享,难以实现智能型变电站智能化、网络化等功能。(3)缺乏在线诊断、分析等高级应用功能。系统故障如果未能及时发现处理,可能导致一体化电源系统某个模块停止工作,甚至影响整个系统的安全稳定运行。比如蓄电池组或部分电池失效(欠压、SOC不足)时,充放电模块或逆变整流模块故障未及时处理,将导致整个电源系统直流失压,引起保护及自动装置拒动,影响一体化电源系统安全运行。The traditional substation backup power management system, whose equipment is produced, installed, and debugged by different manufacturers, has problems such as incompatibility of communication protocols, poor sharing of data information, and low degree of automation. In addition, the monitoring information of the system is incomplete. It only realizes the monitoring of the basic "telemetry" and "remote signaling" parameters of the equipment, and does not realize the "remote control" function of the smart substation. Through the careful investigation and analysis of the substation backup power monitoring system currently in use, the following problems are summarized: (1) The online monitoring system is incomplete. The existing integrated power supply monitoring system mainly conducts online monitoring of the basic parameters of each device, and does not consider the online monitoring of modules such as bus feeders, inverters, and rectifiers. In actual operation, the integrated power supply monitoring system is incomplete, which will have serious consequences, such as the tripping of the circuit breaker of the bus feeder, and the protection and automatic devices will crash due to the high temperature of the operating environment. When the system fails, the protection and The automatic device may refuse to move, and a leapfrog trip may occur, causing an accident and causing economic and property losses. (2) The degree of automation is not high. The sub-system equipment of the integrated power system is produced, installed, and debugged by different suppliers. The communication protocols between them are generally incompatible, and it is difficult to share data information, and it is difficult to realize intelligent and networked functions of intelligent substations. (3) Lack of advanced application functions such as online diagnosis and analysis. If the system failure is not detected and dealt with in time, it may cause a module of the integrated power system to stop working, and even affect the safe and stable operation of the entire system. For example, when the battery pack or some batteries fail (undervoltage, insufficient SOC), the failure of the charging and discharging module or the inverter and rectifier module is not handled in time, which will cause the DC voltage loss of the entire power system, causing the protection and automatic devices to refuse to operate, and affecting the integrated power supply The system operates safely.
新型变电站备用电源系统,借鉴智能型变电站核心思想,对传统站用电源系统进行全面整合,将交流电源、不间断电源(UPS)、逆变电源、通信电源、DC-DC电源、常用蓄电池组和备用蓄电池组,统一设计生产、调试、监控,通过通信网络将各子系统智能设备接入一体化监控平台,实现智能型变电站的智能化、网络化及信息共享。但是现有变电站备用电源监控系统难以符合智能型变电站智能化、网络化、信息共享的基本要求,急需发明一种面向智能型变电站备用电源系统的一体化电源监控系统工程设计方法和应用功能系统。目前IEC61850协议是智能变电站通信网络的国际标准,其根本目标是解决智能电子设备(IED)的互操作和无缝连接,为智能变电站信息交互和模型描述提供了基本方法和标准。The new substation backup power system, drawing on the core idea of intelligent substations, fully integrates the traditional station power system, integrating AC power, uninterruptible power supply (UPS), inverter power, communication power, DC-DC power, common battery packs and The backup battery pack is designed, produced, debugged and monitored in a unified manner, and the intelligent equipment of each subsystem is connected to the integrated monitoring platform through the communication network to realize the intelligence, networking and information sharing of the intelligent substation. However, the existing substation backup power monitoring system is difficult to meet the basic requirements of smart substation intelligence, networking, and information sharing. It is urgent to invent an integrated power monitoring system engineering design method and application function system for smart substation backup power systems. At present, the IEC61850 protocol is an international standard for the communication network of smart substations. Its fundamental goal is to solve the interoperability and seamless connection of intelligent electronic devices (IEDs), and provide basic methods and standards for information interaction and model description of smart substations.
近几年,基于IEC61850的变电站信息建模方法和应用技术已经有所突破,例如有文献提出根据气体绝缘组合电器(GIS)监测的功能需求,建立GIS状态监测的IED信息模型,以及分析变电站设备在线监测系统IED的建模,设计IED与监测单元间的数据映射的实现方法,或者将数据库模型分为信息模型、设备模型、应用模型三部分,在IEC61850数据类的基础上提出了对数据库信息模型建模的方法。In recent years, some breakthroughs have been made in the substation information modeling method and application technology based on IEC61850. For example, some literature proposes to establish an IED information model for GIS status monitoring and analyze substation equipment The modeling of the IED of the online monitoring system, the realization method of data mapping between the design of the IED and the monitoring unit, or the database model is divided into three parts: the information model, the equipment model, and the application model. On the basis of the IEC61850 data class, the database information Modeling methods.
上述一些研究成果表明基于IEC61850协议的变电站信息建模技术已逐渐成熟,但是对变电站一体化电源系统的信息模型和标准化接入问题鲜有研究。Some of the above research results show that the substation information modeling technology based on the IEC61850 protocol has gradually matured, but there is little research on the information model and standardized access of the substation integrated power system.
发明内容Contents of the invention
本发明的目的在于克服现有技术的不足,提供一种面向变电站备用电源系统的智能一体化监控方法,以IEC61850通信规约为基准,规范和完善采集信息,实现智能一体化电源系统的在线实时监控。The purpose of the present invention is to overcome the deficiencies of the prior art and provide an intelligent integrated monitoring method for the substation backup power system. Based on the IEC61850 communication protocol, standardize and improve the collected information, and realize the online real-time monitoring of the intelligent integrated power system .
为实现上述发明目的,本发明一种面向变电站备用电源系统的智能一体化监控方法,其特征在于,包括以下步骤:In order to achieve the above-mentioned purpose of the invention, the present invention is an intelligent integrated monitoring method for substation backup power supply system, which is characterized in that it includes the following steps:
(1)、在线监控平台利用以太网接口发送智能一体化电源系统状态采集指令至一体化电源系统前端采集装置;(1), the online monitoring platform uses the Ethernet interface to send the state acquisition command of the intelligent integrated power system to the front-end acquisition device of the integrated power system;
(2)、一体化电源系统前端采集装置内的IEC61850规约转换器将采集指令转换为对应的CAN或MODBUS协议数据包,再通过监控主机转发至信息采集模块,信息采集模块读取CAN或MODBUS协议数据包中的采集指令,并利用RS485、RS232通讯接口按照采集指令对智能一体化电源系统各子系统进行数据采集;(2) The IEC61850 protocol converter in the front-end acquisition device of the integrated power supply system converts the acquisition command into the corresponding CAN or MODBUS protocol data packet, and then forwards it to the information acquisition module through the monitoring host, and the information acquisition module reads the CAN or MODBUS protocol The collection instruction in the data packet, and use the RS485, RS232 communication interface to collect data from each subsystem of the intelligent integrated power supply system according to the collection instruction;
(3)、将智能一体化电源系统各子系统的采集数据打包为CAN或MODBUS协议数据包通过RS485或RS232通讯接口反送至信息采集模块,并通过监控主机转发至IEC61850规约转换器;;(3) Pack the collected data of each subsystem of the intelligent integrated power supply system into CAN or MODBUS protocol data packets and send them back to the information collection module through the RS485 or RS232 communication interface, and forward them to the IEC61850 protocol converter through the monitoring host;
(4)、IEC61850规约转换器将CAN或MODBUS协议数据包转化为智能变电站可识别的模型数据;(4) The IEC61850 protocol converter converts CAN or MODBUS protocol data packets into recognizable model data for smart substations;
(4.1)、IEC61850规约转换器读取CAN或MODBUS协议数据包,并进行数据编码、封装,再将编码、封装后的数据转换为IEC61850协议数据包;(4.1), the IEC61850 protocol converter reads CAN or MODBUS protocol data packets, encodes and encapsulates the data, and then converts the encoded and encapsulated data into IEC61850 protocol data packets;
(4.2)、根据IEC61850协议规约对智能一体化电源系统进行建模,将IEC61850协议数据包转化为智能变电站可识别的模型数据;(4.2) Model the intelligent integrated power supply system according to the IEC61850 protocol, and convert the IEC61850 protocol data packet into model data recognizable by the smart substation;
(4.2.1)、根据智能型变电站的要求及IEC61850协议规约,将智能一体化电源系统功能分为蓄电池、交流电源、直流电源、通信电源、UPS电源、逆变电源六个能模型子系统;(4.2.1), according to the requirements of intelligent substations and the IEC61850 protocol, the functions of the intelligent integrated power supply system are divided into six energy model subsystems: storage battery, AC power supply, DC power supply, communication power supply, UPS power supply, and inverter power supply;
(4.2.2)、对每一个能模型子系统构建智能电子设备IED信息模型;(4.2.2), build intelligent electronic device IED information model for each energy model subsystem;
根据每一个能模型子系统的实际功能和系统逻辑结构关系,确定每一个IED的逻辑节点LN,再将LN分配到实际的智能一体化电源系统的IED中,然后根据LN之间的逻辑连接确定IED之间的通信方式;According to the actual function of each energy model subsystem and the logical structure of the system, determine the logical node LN of each IED, and then allocate the LN to the actual IED of the intelligent integrated power system, and then determine according to the logical connection between the LNs Communication methods between IEDs;
(4.2.3)、利用IEC61850协议规约对智能变电站配置描述语言SCL,进而对智能一体化电源系统的IED进行描述,描述内容包括逻辑节点类、数据对象DO、数据属性DA;(4.2.3) Use the IEC61850 protocol to describe the intelligent substation configuration description language SCL, and then describe the IED of the intelligent integrated power supply system. The description includes logical node classes, data objects DO, and data attributes DA;
然后对智能一体化电源系统进行IEC6185工程配置;其配置流程为各电源设备IED通过各自带的配置工具生成设备的ICD文件,将ICD文件和手动配置的SSD文件导入本地系统配置工具,生成SCD文件,再将SCD文件导入各自带的配置工具,导出设备装置的CID文件,下载到IEC61850规约转换器中运行,配置完成各电源设备IED的语言描述;Then carry out IEC6185 engineering configuration for the intelligent integrated power system; the configuration process is that each power device IED generates the ICD file of the device through its own configuration tool, imports the ICD file and the manually configured SSD file into the local system configuration tool, and generates the SCD file , and then import the SCD file into the respective configuration tool, export the CID file of the equipment device, download it to the IEC61850 protocol converter and run it, and configure the language description of each power supply equipment IED;
(5)、在线监控平台对收到的数据进行监控显示,同时在线监控平台还发送遥控指令至IEC61850规约转换器,经过IEC61850规约转换器解码后转发给监控主机,实现一体化电源系统遥控功能。(5) The online monitoring platform monitors and displays the received data, and at the same time, the online monitoring platform also sends remote control commands to the IEC61850 protocol converter, which are decoded by the IEC61850 protocol converter and forwarded to the monitoring host to realize the remote control function of the integrated power supply system.
本发明的发明目的是这样实现的:The purpose of the invention of the present invention is achieved like this:
本发明一种面向变电站备用电源系统的智能一体化监控方法,利用一体化电源系统前端采集装置完成各电源子系统的异构通信信息集合,并将电源各子系统监控集于同一监控平台,再以IEC61850通信规约为基准,规范和完善采集信息,实现一体化电源系统全面的、精确的在线实时监控,这样确保各电源子系统间的数据信息共享,并支持智能诊断、分析等高级应用功能,最终实现智能型变电站的智能化、网络化要求。The present invention is an intelligent integrated monitoring method oriented to substation backup power supply system, which uses the front-end acquisition device of the integrated power supply system to complete the collection of heterogeneous communication information of each power supply subsystem, and collects the monitoring of each subsystem of the power supply on the same monitoring platform, and then Based on the IEC61850 communication protocol, standardize and improve the collected information, and realize the comprehensive and accurate online real-time monitoring of the integrated power supply system, so as to ensure the data information sharing among the power supply subsystems, and support advanced application functions such as intelligent diagnosis and analysis. Finally, the intelligent and networked requirements of the intelligent substation will be realized.
附图说明Description of drawings
图1是本发明一种面向变电站备用电源系统的智能一体化监控架构图;Fig. 1 is a kind of intelligent integrated monitoring framework diagram of the present invention facing substation backup power supply system;
图2是一体化电源系统前端采集装置原理图;Figure 2 is a schematic diagram of the front-end acquisition device of the integrated power supply system;
图3是IEC64850规约转换流程图;Figure 3 is a flow chart of IEC64850 protocol conversion;
图4是将智能一体化电源系统功能分为六个功能模型子系统示意图;Figure 4 is a schematic diagram of dividing the functions of the intelligent integrated power supply system into six functional model subsystems;
图5是SCL配置流程图。Figure 5 is a flow chart of SCL configuration.
具体实施方式detailed description
下面结合附图对本发明的具体实施方式进行描述,以便本领域的技术人员更好地理解本发明。需要特别提醒注意的是,在以下的描述中,当已知功能和设计的详细描述也许会淡化本发明的主要内容时,这些描述在这里将被忽略。Specific embodiments of the present invention will be described below in conjunction with the accompanying drawings, so that those skilled in the art can better understand the present invention. It should be noted that in the following description, when detailed descriptions of known functions and designs may dilute the main content of the present invention, these descriptions will be omitted here.
实施例Example
为了方便描述,先对具体实施方式中出现的相关专业术语进行说明:For the convenience of description, the relevant technical terms appearing in the specific implementation are explained first:
IEC61850(International Electrotechnical Committee):国际电工委员会制定的变电站通信网络和系统国际标准IEC61850 (International Electrotechnical Committee): An international standard for substation communication networks and systems formulated by the International Electrotechnical Commission
CAN(Controller Area Network):控制器局域网络CAN(Controller Area Network): Controller Area Network
MODBUS:网络通信协议MODBUS: network communication protocol
IED(Intelligent Electronic Device):智能电子设备IED (Intelligent Electronic Device): intelligent electronic device
LN(Logical Node):逻辑节点LN (Logical Node): logical node
DO(Data Object):数据对象DO(Data Object): data object
DA(Data Attribute):数据属性DA (Data Attribute): data attribute
ICD(IED Capability Description):IED能力描述ICD (IED Capability Description): IED capability description
SCD(Substation Configuration Description):全站系统配置描述SCD (Substation Configuration Description): total station system configuration description
SSD(System Specification Description):系统规范描述。SSD (System Specification Description): system specification description.
图1是本发明一种面向变电站备用电源系统的智能一体化监控架构图。Fig. 1 is a structure diagram of an intelligent integrated monitoring system oriented to a substation backup power supply system according to the present invention.
在本实施例中,如图1所示,本发明一种面向变电站备用电源系统的智能一体化监控方法,是将智能一体化电源系统各子系统的监控集于同一平台,以IEC61850通信规约为基准,规范和完善采集信息,实现一体化电源系统全面的、精确的在线实时监控,确保各子系统间的数据信息共享,并支持智能诊断、分析等高级应用功能,最终实现智能型变电站的智能化、网络化要求。In this embodiment, as shown in Figure 1, the present invention is an intelligent integrated monitoring method for the substation backup power system, which integrates the monitoring of each subsystem of the intelligent integrated power system on the same platform, and the IEC61850 communication protocol is Benchmark, standardize and improve the collected information, realize the comprehensive and accurate online real-time monitoring of the integrated power supply system, ensure the sharing of data information among the subsystems, and support advanced application functions such as intelligent diagnosis and analysis, and finally realize the intelligence of the intelligent substation and networking requirements.
其中,如图1所示,智能一体化电源系统包括交流电源子系统、直流电源子系统、通信电源子系统、不间断电源(UPS)子系统、逆变电源子系统、蓄电池子系统。Among them, as shown in Figure 1, the intelligent integrated power supply system includes an AC power supply subsystem, a DC power supply subsystem, a communication power supply subsystem, an uninterruptible power supply (UPS) subsystem, an inverter power supply subsystem, and a storage battery subsystem.
系统中设备由不同供应商制造、安装、调试,一般采用相互独立的设计方式,因此,将各设备运行状态的采集信息与控制信息集中于一体化电源系统前端采集装置,实现各设备信息的统一采集以及设备运行状态的控制。一体化电源系统前端采集装置含有RS485、RS232、CAN总线、以太网等通讯接口,其中RS485、RS232、CAN总线的通讯接口用于与智能一体化电源系统各子系统的通信,以太网接口用于与智能一体化电源系统在线监控平台或远程变电站通信,其通信协议采用IEC61850规约,确保各子系统间通信标准和协议的统一,并实现各子系统与监控平台的无障碍通信。The equipment in the system is manufactured, installed, and debugged by different suppliers, and generally adopts independent design methods. Therefore, the collection information and control information of the operation status of each equipment are concentrated in the front-end acquisition device of the integrated power system to realize the unification of information of each equipment Acquisition and control of equipment operating status. The front-end acquisition device of the integrated power supply system includes communication interfaces such as RS485, RS232, CAN bus, and Ethernet, among which the communication interfaces of RS485, RS232, and CAN bus are used for It communicates with the intelligent integrated power system online monitoring platform or remote substation, and its communication protocol adopts the IEC61850 protocol to ensure the unification of communication standards and protocols among subsystems, and realize the barrier-free communication between each subsystem and the monitoring platform.
智能一体化电源监控系统主要实现交流电源、直流电源、通信电源等子系统设备运行状态信息的实时监控与智能告警。其中,实时监控,通过图形、数字、曲线、接线图方式,显示各子系统设备运行状态,通过鼠标、键盘对监控界面的操作,发送相关控制指令,实现对各子系统设备的在线控制;智能报警,通过图形、数字、曲线方式,实现各子系统遥信、遥测、遥控的及时报警。The intelligent integrated power supply monitoring system mainly realizes the real-time monitoring and intelligent alarming of the operating status information of subsystem equipment such as AC power supply, DC power supply, and communication power supply. Among them, real-time monitoring displays the operating status of each subsystem equipment through graphics, numbers, curves, and wiring diagrams, and sends relevant control instructions through mouse and keyboard operations on the monitoring interface to realize online control of each subsystem equipment; intelligent Alarm, through graphics, numbers, and curves, realizes timely alarms for remote signaling, telemetry, and remote control of each subsystem.
下面对本发明一种面向变电站备用电源系统的智能一体化监控方法进行详细说明,具体包括以下步骤:An intelligent integrated monitoring method for a substation backup power supply system of the present invention will be described in detail below, which specifically includes the following steps:
(1)、在线监控平台利用以太网接口发送智能一体化电源系统状态采集指令至一体化电源系统前端采集装置;(1), the online monitoring platform uses the Ethernet interface to send the state acquisition command of the intelligent integrated power system to the front-end acquisition device of the integrated power system;
(2)、一体化电源系统前端采集装置内的IEC61850规约转换器将采集指令转换为对应的CAN或MODBUS协议数据包,再通过监控主机转发至信息采集模块,信息采集模块读取CAN或MODBUS协议数据包中的采集指令,并利用RS485、RS232通讯接口按照采集指令对智能一体化电源系统各子系统进行数据采集,其中,采集的数据包括数字量采集、模拟量采集和开关量采集;(2) The IEC61850 protocol converter in the front-end acquisition device of the integrated power supply system converts the acquisition command into the corresponding CAN or MODBUS protocol data packet, and then forwards it to the information acquisition module through the monitoring host, and the information acquisition module reads the CAN or MODBUS protocol The collection instruction in the data packet, and use the RS485, RS232 communication interface to collect data from each subsystem of the intelligent integrated power supply system according to the collection instruction, wherein the collected data includes digital quantity collection, analog quantity collection and switch quantity collection;
(3)、将智能一体化电源系统各子系统的采集数据打包为CAN或MODBUS协议数据包通过RS485或RS232通讯接口反送至信息采集模块,并通过监控主机转发至IEC61850规约转换器;(3) Pack the collected data of each subsystem of the intelligent integrated power supply system into CAN or MODBUS protocol data packets and send them back to the information collection module through the RS485 or RS232 communication interface, and forward them to the IEC61850 protocol converter through the monitoring host;
在上述三步中,信息采集模块、监控主机和IEC61850规约转换器共同构成一体化电源系统前端采集装置,如图2所示;In the above three steps, the information acquisition module, the monitoring host and the IEC61850 protocol converter together constitute the front-end acquisition device of the integrated power system, as shown in Figure 2;
其中,监控主机,采用下行串口通道和上行串口通道的构架;下行串口通道通过RS232、RS485、CAN访问信息采集模块,进行状态数据的采集和管理;上行串口通道将不同格式的状态数据发送至IEC61850规约转换器,并进行IEC61850协议的转换;Among them, the monitoring host adopts the framework of downlink serial port channel and uplink serial port channel; the downlink serial port channel accesses the information acquisition module through RS232, RS485 and CAN to collect and manage status data; the uplink serial port channel sends status data in different formats to IEC61850 Protocol converter, and convert IEC61850 protocol;
如图3所示,IEC61850规约转换器实现数据交换接口和数据格式的映射和转换功能,其转换过程为:将相应智能电子设备(IED)的RS232、RS485等多种数据通信规约转换为IEC61850标准通信规约,实现一体化电源系统中各种IED的管理和设备间的互联、互操作;一方面将监控主机发送的采集信息,按约定的协议进行编码、打包,发送至监控平台,另一方面将监控平台发出的指令经过解码发给监控主机,实现实时的遥测、遥信、遥控。该规约转换器集成在监控主机的内部;As shown in Figure 3, the IEC61850 protocol converter implements the mapping and conversion functions of the data exchange interface and data format. The conversion process is: converting various data communication protocols such as RS232 and RS485 of the corresponding intelligent electronic device (IED) into the IEC61850 standard The communication protocol realizes the management of various IEDs in the integrated power supply system and the interconnection and interoperability between devices; on the one hand, the collected information sent by the monitoring host is encoded and packaged according to the agreed protocol, and sent to the monitoring platform; The instructions issued by the monitoring platform are decoded and sent to the monitoring host to realize real-time telemetry, remote signaling and remote control. The protocol converter is integrated inside the monitoring host;
(4)、IEC61850规约转换器将CAN或MODBUS协议数据包转化为智能变电站可识别的模型数据;(4) The IEC61850 protocol converter converts CAN or MODBUS protocol data packets into recognizable model data for smart substations;
(4.1)、IEC61850规约转换器读取CAN或MODBUS协议数据包,并进行数据编码、封装,再将编码、封装后的数据转换为IEC61850协议数据包;(4.1), the IEC61850 protocol converter reads CAN or MODBUS protocol data packets, encodes and encapsulates the data, and then converts the encoded and encapsulated data into IEC61850 protocol data packets;
(4.2)、根据IEC61850协议规约对智能一体化电源系统进行建模,将IEC61850协议数据包转化为智能变电站可识别的模型数据;(4.2) Model the intelligent integrated power supply system according to the IEC61850 protocol, and convert the IEC61850 protocol data packet into model data recognizable by the smart substation;
(4.2.1)、根据智能型变电站的要求及IEC61850协议规约,将智能一体化电源系统功能分为蓄电池、交流电源、直流电源、通信电源、UPS电源、逆变电源六个能模型子系统;(4.2.1), according to the requirements of intelligent substations and the IEC61850 protocol, the functions of the intelligent integrated power supply system are divided into six energy model subsystems: storage battery, AC power supply, DC power supply, communication power supply, UPS power supply, and inverter power supply;
如图4所示,其中交流电源和UPS电源可划分为变压器和UPS电源运行状态监测,交流进线、母线、馈线、旁路进线运行状态监测,以及交流自动切换装置运行状态监控;直流电源以及通信电源分解为硅降压装置和DC/DC电源运行状态监控,直流进线、母线、馈线状态监测;逆变电源分解为逆变器运行状态监控,交流进线、母线、馈线、旁路进线运行状态监测,以及直流进线运行状态监测;蓄电池监控分解为充电机运行状态监控,单体电池、电池组状态监测,直流进线、母线、馈线状态监测;As shown in Figure 4, the AC power supply and UPS power supply can be divided into transformer and UPS power supply operating status monitoring, AC incoming line, busbar, feeder line, bypass incoming line operating state monitoring, and AC automatic switching device operating state monitoring; DC power supply And the communication power supply is decomposed into silicon step-down device and DC/DC power supply operation status monitoring, DC incoming line, bus bar, feeder line state monitoring; inverter power supply is decomposed into inverter operating state monitoring, AC incoming line, bus bar, feeder line, bypass Incoming line running status monitoring, and DC incoming line running status monitoring; battery monitoring is decomposed into charging machine running status monitoring, single battery, battery pack status monitoring, DC incoming line, busbar, and feeder status monitoring;
(4.2.2)、对每一个能模型子系统构建智能电子设备IED信息模型;(4.2.2), build intelligent electronic device IED information model for each energy model subsystem;
根据每一个能模型子系统的实际功能和系统逻辑结构关系,确定每一个IED的逻辑节点LN,再将LN分配到实际的智能一体化电源系统的IED中,然后根据LN之间的逻辑连接确定IED之间的通信方式;According to the actual function of each energy model subsystem and the logical structure of the system, determine the logical node LN of each IED, and then allocate the LN to the actual IED of the intelligent integrated power system, and then determine according to the logical connection between the LNs Communication methods between IEDs;
(4.2.3)、利用IEC61850协议规约对智能变电站配置描述语言SCL,进而对智能一体化电源系统的IED进行描述,描述内容包括逻辑节点类、数据对象DO、数据属性DA;(4.2.3) Use the IEC61850 protocol to describe the intelligent substation configuration description language SCL, and then describe the IED of the intelligent integrated power supply system. The description includes logical node classes, data objects DO, and data attributes DA;
然后对智能一体化电源系统进行IEC6185工程配置;如图5所示,其配置流程为各电源设备IED通过各自带的配置工具生成设备的ICD文件,将ICD文件和手动配置的SSD文件导入本地系统配置工具,生成SCD文件,再将SCD文件导入各自带的配置工具,导出设备装置的CID文件,下载到IEC61850规约转换器中运行,配置完成各电源设备IED的语言描述;Then configure the IEC6185 project for the intelligent integrated power supply system; as shown in Figure 5, the configuration process is that each power supply device IED generates the ICD file of the device through its own configuration tool, and imports the ICD file and manually configured SSD file into the local system The configuration tool generates SCD files, and then imports the SCD files into their own configuration tools, exports the CID files of the equipment, downloads them to the IEC61850 protocol converter, and completes the language description of each power supply equipment IED;
(5)、在线监控平台对收到的数据进行监控显示,同时在线监控平台还发送遥控指令至IEC61850规约转换器,经过IEC61850规约转换器解码后转发给监控主机,实现一体化电源系统遥控功能。(5) The online monitoring platform monitors and displays the received data, and at the same time, the online monitoring platform also sends remote control commands to the IEC61850 protocol converter, which are decoded by the IEC61850 protocol converter and forwarded to the monitoring host to realize the remote control function of the integrated power supply system.
尽管上面对本发明说明性的具体实施方式进行了描述,以便于本技术领域的技术人员理解本发明,但应该清楚,本发明不限于具体实施方式的范围,对本技术领域的普通技术人员来讲,只要各种变化在所附的权利要求限定和确定的本发明的精神和范围内,这些变化是显而易见的,一切利用本发明构思的发明创造均在保护之列。Although the illustrative specific embodiments of the present invention have been described above, so that those skilled in the art can understand the present invention, it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, As long as various changes are within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.
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