WO2023005201A1 - 一种分散式布置的智慧电厂电气监控管理系统 - Google Patents

一种分散式布置的智慧电厂电气监控管理系统 Download PDF

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WO2023005201A1
WO2023005201A1 PCT/CN2022/078177 CN2022078177W WO2023005201A1 WO 2023005201 A1 WO2023005201 A1 WO 2023005201A1 CN 2022078177 W CN2022078177 W CN 2022078177W WO 2023005201 A1 WO2023005201 A1 WO 2023005201A1
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communication management
layer
power plant
electrical monitoring
intelligent
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PCT/CN2022/078177
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French (fr)
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杨德全
彭昌
张一鹏
王昊天
杨泽明
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中国电建集团河北省电力勘测设计研究院有限公司
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Publication of WO2023005201A1 publication Critical patent/WO2023005201A1/zh

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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
    • G05B19/4185—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by the network communication
    • G05B19/4186—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by the network communication by protocol, e.g. MAP, TOP
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/33—Director till display
    • G05B2219/33139—Design of industrial communication system with expert system
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

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  • the present invention relates to the technical field of electrical automation control engineering, in particular to a decentralized electrical monitoring and management system for a smart power plant, which belongs to an implementation plan or application for a decentralized electrical monitoring and management system in a thermal power plant.
  • ECMS Power Plant Electrical Monitoring and Management System
  • the functions of the ECMS system include the monitoring and management of electrical equipment in power plants, mainly for the monitoring and management of units (high and low voltage plant power systems, generator transformers) to realize the monitoring/monitoring and management and maintenance of the electrical systems of power plants in normal operation and in case of accidents .
  • the thermal power plant In order to improve the automation level of the power plant electrical monitoring system and realize the power consumption rate and power energy analysis of the power plant, the thermal power plant usually adopts the "electrical system ECMS full communication + thermal control system DCS hard wiring" method for process monitoring and control in the plant .
  • a conventional ECMS system adopts a layered distributed structure, generally including a station control layer, a communication management layer, and an on-site interval layer.
  • the station control layer communicates with the communication management layer equipment through the network cable to form a 100M Ethernet.
  • the communication management layer and the on-site bay layer equipment realize the control and monitoring functions of each bay equipment through communication lines.
  • the disadvantages of this scheme are as follows: 1. Due to the scattered arrangement of equipment in each bay layer in the power plant, this structure can realize communication for the bay layer using MODBUS and PORFIBUS communication protocols, but the amount of cables is huge and the project cost is high; The layout of the bay layer equipment is scattered.
  • the bay layer equipment adopts the currently popularized IEC61850 communication protocol
  • the communication acquisition screen is set up on the spot, the civil installation and power supply of the communication acquisition screen need to be considered separately, which will increase the system cost.
  • the technical problem to be solved by the present invention is to provide a distributed arrangement of electrical monitoring and management system for smart power plants, optimize the existing network structure and configuration, realize the reasonable configuration of thermal power plant electrical monitoring systems, save a large number of communication cables, save The panel cabinet of the communication management machine/switch is installed, which effectively reduces the engineering cost of the electrical monitoring system and improves the automation level of the electrical monitoring system of the power plant.
  • the network layer includes station control layer, communication management layer and field separation layer; each network layer adopts dual-network and dual-redundancy configuration, and is networked separately according to the unit and public system;
  • Each intelligent device in the electronic room of the unit adopts the scheme of setting up a separate communication management panel to collect information; the intelligent devices and communication management machines/switches in the high and low voltage power distribution room in the power plant are scattered in the switch cabinets of each area; Connect the distributed communication management machines/switches to the core switch of the station control layer.
  • the further improvement of the technical solution of the present invention lies in that: 2 sets of 100M station control layer monitoring Ethernet networks including 1 operator, 1 engineer station, 2 servers and 4 core switches are set on the station control layer.
  • the unit protection intelligent equipment of the communication management layer is provided with a communication management machine screen, the communication management layer is connected to the protection device, the synchronization device, and the fast switching device through IEC6185O, and the communication management layer is connected to the device through MODBUS Watt-hour meter, DC system, UPS system, diesel generator system.
  • the further improvement of the technical solution of the present invention lies in: it also includes an intelligent protection measurement and control device in the high and low voltage switch cabinet, and the communication management machine or switch is lowered to the high voltage switch cabinet in each area.
  • the further improvement of the technical solution of the present invention lies in: connecting the intelligent protection measurement and control device in the high-voltage cabinet through IEC6185O, and connecting the intelligent protection measurement and control device in the low-voltage cabinet through IEC6185O or MODBUS.
  • the present invention optimizes the existing network structure and configuration, and realizes the reasonable configuration of the electrical monitoring system of the thermal power plant.
  • the spare space in the switch cabinet at the place can effectively reduce the engineering cost of the electrical monitoring system and improve the automation level of the electrical monitoring system of the power plant.
  • the scheme of setting up a separate communication management panel to collect information is adopted; for the intelligent devices in the high and low voltage power distribution room in the power plant, part of the communication management machines/switches are scattered in the switch cabinets of each area , to realize the collection of electrical quantity information of the switch cabinets in the whole factory, which can significantly shorten the communication line from the intelligent equipment in the switch cabinet to the communication management machine/switch.
  • the core switch is set up at the station control layer, and the scattered communication management machines/switches are connected to the core switch through redundant optical fibers, so as to realize the information collection of intelligent devices in the switch cabinets in each area of the whole factory.
  • the invention effectively solves the problem of difficulty in networking of all electrical equipment communications using IEC61850 communication, and has a positive impact on popularizing the application of the IEC61850 communication protocol in power plants.
  • Fig. 1 is a schematic diagram of the electric monitoring and management system of a centralized and layered design power plant of the present invention
  • Fig. 2 is a schematic diagram of the electrical monitoring and management system of a distributed smart power plant according to the present invention.
  • Fig. 1 and Fig. 2 it is a decentralized arrangement of electrical monitoring and management system for smart power plants.
  • the ECMS system is set up with a station control layer, a communication management layer, and an on-site interval layer.
  • Each network layer of ECMS adopts dual-network and dual-redundancy configuration, and is networked separately according to the units and public systems.
  • the scheme of setting up a separate communication management panel to collect information is adopted; for the intelligent devices in the high and low voltage power distribution room in the power plant, part of the communication management machines/switches are scattered in the switch cabinets of each area , to realize the collection of electrical quantity information of the switch cabinets in the whole factory, which can significantly shorten the communication line from the intelligent equipment in the switch cabinet to the communication management machine/switch.
  • the core switch is set up at the station control layer, and the scattered communication management machines/switches are connected to the core switch through redundant optical fibers, so as to realize the information collection of the intelligent devices in the switch cabinets in each area of the whole plant.
  • the ECMS station control layer is provided with 1 operator station, 1 engineer station, 2 servers, and 4 core switches to form 2 sets of 100M station control layer monitoring Ethernet networks.
  • the communication management layer sets up a communication management machine screen for the unit protection intelligent equipment, which is connected to the protection device, synchronization device, fast switching device, watt-hour meter, etc. through IEC6185O, and connected to the DC system, UPS system, diesel generator system, etc. through MODBUS.
  • the communication management machine or switch is lowered to the high-voltage switchgear in each area; the intelligent protection, measurement and control device in the high-voltage cabinet is connected through IEC6185O, Connect to the intelligent protection measurement and control device in the low-voltage cabinet through IEC6185O or MODBUS.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
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Abstract

一种分散式布置的智慧电厂电气监控管理系统，其中网络层包括站控层、通信管理层以及现场间隔层；各网络层采用双网、双冗余配置，并按照机组、公用系统分别组网；机组电子间内各个智能设备采用设置单独通讯管理屏采集信息的方案；电厂内的高低压配电间内的智能设备及通讯管理机/交换机分散布置在各区域的开关柜内；通过冗余光纤将分散布置的各个通讯管理机/交换机接入站控层的核心交换机。该系统对现有网络结构合配置进行优化，节省了大量的通讯电缆，节省了通讯管理机/交换机的盘柜，有效降低电气监控系统的工程造价，提高电厂电气监控系统的自动化水平。

Description

一种分散式布置的智慧电厂电气监控管理系统 技术领域
本发明涉及电气自动化控制工程技术领域，尤其是一种分散式布置的智慧电厂电气监控管理系统，属于一种火电厂的分散式电气监控管理系统实施方案或者用于。
背景技术
发电厂电气监控管理系统(ECMS)是应用自动控制技术，计算机数字化技术和数字化信息传输技术，将发电厂厂用系统相互有关联的各部分总成为一种有机的整体。ECMS系统功能包括发电厂电气设备的监控及管理，主要为机组(高低压厂用电系统、发电机变压器)的监控管理实现发电厂电气系统正常运行及事故情况下的监控/监测和管理、维护。
火电厂为了提高电厂电气监控系统的自动化水平，实现电厂的厂用电率及电能量分析，对厂内的过程监视和控制方式通常采用“电气系统ECMS全通信+热控系统DCS硬接线”方式。
常规的ECMS系统采用分层分布式结构，一般设站控层、通信管理层，现场间隔层。站控层通过网线与通信管理层设备通讯，组成100M以太网。通讯管理层与现场间隔层设备通过通讯线实现各个间隔设备的控制、监测功能。这种方案缺点如下：1、由于电厂内各个间隔层设备布置分散，此种结构对于采用MODBUS、PORFIBUS通讯协议的间隔层可实现通讯，但是电缆量巨大，工程造价高；2、由于电厂内各个间隔层设备布置分散，如采用现在推广的IEC61850通讯协议的间隔层设备，受网线通讯传输距离限制需要增加大量的光电转换设备才能实现集中组网。如就地设置通讯采集屏，需单独考虑通讯采集屏的土建安装和电源供电，增加系统造价。
发明内容
本发明需要解决的技术问题是提供一种分散式布置的智慧电厂电气监控管理系统，对现有网络结构合配置进行优化，实现火电厂电气监控系统的合理配置，节省了大量的通讯电缆，节省了通讯管理机/交换机的盘柜，有效降低电气监控系统的工程造价，提高电厂电气监控系统的自动化水平。
为解决上述技术问题，本发明所采用的技术方案是：
一种分散式布置的智慧电厂电气监控管理系统，网络层包括站控层、通信管理层以及现场间隔层；各网络层采用双网、双冗余配置，并按照机组、公用系统分别组网；机组电子间内各个智能设备采用设置单独通讯管理屏采集信息的方案；电厂内的高低压配电间内的智能设备及通讯管理机/交换机分散布置在各区域的开关柜内；通过冗余光纤将分散布置的各个通讯管理机/交换机接入站控层的核心交换机。
本发明技术方案的进一步改进在于：在所述站控层设置有包括1台操作员、1台工程师站、2台服务器以及4台核心交换机的2套百兆的站控层监控以太网络。
本发明技术方案的进一步改进在于：所述通讯管理层的机组保智能设备设置有通讯管理机屏，通讯管理层通过IEC6185O接入保护装置、同期装置、快切装置，通讯管理层通过MODBUS接入电度表、直流系统、UPS系统、柴油发电机系统。
本发明技术方案的进一步改进在于：还包括高低压开关柜内的智能保护测控装置，通讯管理机或交换机下放至各区域的高压开关柜。
本发明技术方案的进一步改进在于：通过IEC6185O接入高压柜内智能保护测控装置，通过IEC6185O或MODBUS接入低压柜内智能保护测控装置。
由于采用了上述技术方案，本发明取得的技术进步是：
本发明对现有网络结构合配置进行优化，实现火电厂电气监控系统的合理配置，本方案节省了大量的通讯电缆，同时节省了通讯管理机/交换机的盘柜， 充分利用分散布置在电厂各处的开关柜内富余空间，有效降低电气监控系统的工程造价，提高电厂电气监控系统的自动化水平。
对于机组电子间内各个智能设备，采用设置单独通讯管理屏采集信息的方案；对于电厂内的高低压配电间内的智能设备，将部分通讯管理机/交换机分散布置在各区域的开关柜内，实现对全厂开关柜的电气量信息采集，这样可以显著缩短开关柜内智能设备至通讯管理机/交换机的通讯线。
在站控层设置核心交换机，通过冗余光纤将分散布置的各个通讯管理机/交换机接入核心交换机，实现全厂各个区域开关柜内智能设备的信息采集。
较原有严格集中分层设计方案节省了通讯管理层的屏体和大量的通讯电缆，有效降低了原有设计方案的工程造价。本发明有效解决了电气设备通讯全部采用IEC61850通讯组网困难的问题，对于推广IEC61850通讯协议在电厂应用有积极影响。
附图说明
图1是本发明的集中分层设计电厂电气监控管理系统示意图；
图2是本发明的分散式布置的智慧电厂电气监控管理系统示意图。
具体实施方式
下面结合实施例对本发明做进一步详细说明：
如图1、图2所示，一种分散式布置的智慧电厂电气监控管理系统，所述ECMS系统设置站控层、通信管理层，现场间隔层。ECMS各网络层采用双网、双冗余配置，并按照机组、公用系统分别组网。对于机组电子间内各个智能设备，采用设置单独通讯管理屏采集信息的方案；对于电厂内的高低压配电间内的智能设备，将部分通讯管理机/交换机分散布置在各区域的开关柜内，实现对全厂开关柜的电气量信息采集，这样可以显著缩短开关柜内智能设备至通讯管理机/交换机的通讯线。在站控层设置核心交换机，通过冗余光纤将分散布置的各个通讯管理机/交换机接入核心交换机，实现全厂各个区域开关柜内智能设备的信 息采集。
所述的ECMS站控层设置1台操作员、1台工程师站、2台服务器、4台核心交换机，组成2套百兆的站控层监控以太网络。通讯管理层对于机组保智能设备设置通讯管理机屏，通过IEC6185O接入护装置、同期装置、快切装置、电度表等，通过MODBUS接入直流系统、UPS系统、柴油发电机系统等。对高低压开关柜内的智能保护测控装置，不再单独设置通讯管理机屏，而是将通讯管理机或交换机下放至各区域的高压开关柜；通过IEC6185O接入高压柜内智能保护测控装置，通过IEC6185O或MODBUS接入低压柜内智能保护测控装置。

Claims (5)

  1. 一种分散式布置的智慧电厂电气监控管理系统，其特征在于：网络层包括站控层、通信管理层以及现场间隔层；各网络层采用双网、双冗余配置，并按照机组、公用系统分别组网；机组电子间内各个智能设备采用设置单独通讯管理屏采集信息的方案；电厂内的高低压配电间内的智能设备及通讯管理机/交换机分散布置在各区域的开关柜内；通过冗余光纤将分散布置的各个通讯管理机/交换机接入站控层的核心交换机。
  2. 根据权利要求1所述的一种分散式布置的智慧电厂电气监控管理系统，其特征在于：在所述站控层设置有包括1台操作员、1台工程师站、2台服务器以及4台核心交换机的2套百兆的站控层监控以太网络。
  3. 根据权利要求1所述的一种分散式布置的智慧电厂电气监控管理系统，其特征在于：所述通讯管理层的机组保智能设备设置有通讯管理机屏，其他区域的通讯管理机/交换机设备下放至现场间隔层，通过IEC6185O接入保护装置、同期装置、快切装置，通过MODBUS接入电度表、直流系统、UPS系统、柴油发电机系统。
  4. 根据权利要求1所述的一种分散式布置的智慧电厂电气监控管理系统，其特征在于：还包括高低压开关柜内的智能保护测控装置，通讯管理机或交换机下放至各区域的高压开关柜。
  5. 根据权利要求4所述的一种分散式布置的智慧电厂电气监控管理系统，其特征在于：通过IEC6185O接入高压柜内智能保护测控装置，通过IEC6185O或MODBUS接入低压柜内智能保护测控装置。
PCT/CN2022/078177 2021-07-30 2022-02-28 一种分散式布置的智慧电厂电气监控管理系统 WO2023005201A1 (zh)

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CN117375062A (zh) * 2023-11-23 2024-01-09 中铁电气化勘测设计研究院有限公司 一种柔性直流牵引变电所智能控制系统

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CN113485276A (zh) * 2021-07-30 2021-10-08 中国电建集团河北省电力勘测设计研究院有限公司 一种分散式布置的智慧电厂电气监控管理系统

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