WO2015176563A1 - 采用广义量测横向关联方式的统一建模方法 - Google Patents
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- the invention is applied to the field of dispatching automation of various power systems, in particular to the unified modeling of the relevant automation system of the patrol center, and is also applicable to the data integration of other automation systems.
- the Southern Power Grid has continuously carried out in-depth research and pilot application of substation operation and maintenance technology.
- the substation cockpit is an integrated technical platform for substation operation and maintenance, integrating professional technical system information such as monitoring, control, equipment monitoring and maintenance management of the substation.
- the cockpit system of the patrol center was developed based on the research of the cockpit of the substation.
- the system integrates data and information related to equipment assets, such as energy management system, production management information system and equipment condition monitoring center, to serve different levels of users, and supports asset status assessment and risk for the patrol center and its substation equipment. Analysis and operation and maintenance efficiency optimization work.
- the cockpit of the patrol center is an integrated working platform for substation operation and maintenance. It integrates multi-professional systems, builds a unified information platform, standardizes various business interfaces, and carries out collaborative operations between businesses to provide a platform for equipment monitoring and operation and maintenance management. Support.
- the unified modeling of various types of data involved in the patrol center is the basis of the cockpit of the patrol center.
- the relevant specifications are defined in the CIM specification and the relevant specifications of China Southern Power Grid, but the definition of secondary equipment and its information is not comprehensive enough, and various types of data are not effectively integrated.
- the present invention proposes a unified modeling method using a generalized measurement horizontal correlation method, which is a new attempt based on the accumulation of operating experience of the automation related system for many years.
- the present invention is based on the IECTC57 public information model CIM, and refers to the IEC61850 specification, and proposes a unified modeling method using a generalized measurement horizontal correlation method, the purpose of which is to refer to various types of data involved in the patrol center.
- the generalized measurement and horizontal correlation method is used for unified modeling to achieve the abstraction of the actual system, and the automatic data and various types of equipment in actual production are controlled and managed through the model.
- the metamodel is defined in accordance with this idea.
- the metamodel contains domain knowledge, which constrains the modeling behavior and ensures that the model established in the modeling phase follows the domain constraints.
- the method improves the abstraction level of solving the problem, so that the advanced application module built on the platform can focus on the problem logic itself rather than the details of the underlying implementation or the organization of various messy data, improving the efficiency of software development. And the correct rate shortens the development cycle.
- CIM Common Information Model.
- CIM is an abstract model designed using the visual object-oriented modeling language UML. CIM performs on major grid equipment and related objects Modeling, including the public classes and properties of these objects, and the relationships between them.
- the CIM model is further refined to cover all objects in the power industry.
- the cockpit of the patrol center is an integrated technology platform for substation operation and maintenance. It integrates the technical system information of monitoring, control, equipment monitoring and maintenance management of the substation, with the main principles of “standardization” and “modularization”. “System streamlining, information specification, interface unification, and business collaboration” are the main technical features, providing one-stop support for power grid monitoring, equipment monitoring and operation management. It involves eight categories of data, mainly for conventional scheduling scada, wam automation system data, equipment status monitoring data, power quality system, fault information system data, MIS asset management, etc.
- the technical solution of the present invention is as follows:
- the present invention uniformly models all the automation data related to the operation of the power industry by using the generalized measurement horizontal correlation method, and specifically includes the following steps:
- the grid equipment is abstracted as a power system resource.
- the model is based on the device container and the primary device. According to the CIM definition, the inherited top model is mapped to the real-time library in the overall inheritance relationship of the model/container.
- the equipment container model adopts three levels of plant station, voltage level and interval.
- the conductive equipment with clear voltage level is placed at the interval of specific voltage level.
- the cross-voltage level object and the main object of the plant station can be directly placed in the interval directly belonging to the plant station. For example, the main transformer interval where the main transformer is located may belong directly to the substation.
- the equipment model mainly includes: transformer, switch, knife Power primary equipment such as gates, busbars, and AC line segments.
- the secondary equipment is modeled according to IEC61850, and the primary and secondary equipment association relationship is established;
- a model IED is established for all secondary devices (including protection devices, centralized recorders, measurement and control, etc.), and the IED establishes an aggregation relationship with the interval Bay, which is expressed as a hierarchical relationship. Due to the particularity of the secondary equipment, the relevant acquisition information of the secondary equipment and the quantity measurement of the primary equipment are modeled the same, and the relationship between these measurements and the secondary equipment is established. On this basis, the primary and secondary device associations are added to the secondary device model, as shown in FIG.
- This model definition contains definitions of secondary device motion data such as protection at fault.
- the public power system model resource model system defined by the South Network itself is complete, it often only includes the primary equipment. It needs to extend the monitoring device to the association of CIM::Asset (ie, assets) to support the data association and correspondence with the PMS system. And the device parameters in the model built according to the functional location are not detailed enough to fully meet the needs of the platform.
- Asset-related information is described in the AssetInfo package.
- AssertInfo is an inheritance of Asset and is associated with the power resource PowerSystemResource.
- a power system resource object is often associated with one or more asset objects. Taking a transformer as an example, a master variable object may be associated with multiple asset objects, including transformer assets and casing assets.
- Part of the equipment parameters are attributed directly to the asset object, such as the equipment model and phase of the transformer asset, and more parameters are difficult to describe with fixed attributes, such as high voltage. - Low-voltage load loss, oil temperature alarm value, etc.
- fixed attributes such as high voltage.
- high voltage Low-voltage load loss, oil temperature alarm value, etc.
- the relationship between most device assets and device parameters is bound using a one-to-many association.
- the equipment status monitoring related data is mainly for primary equipment, so the measurement type is increased for equipment condition monitoring, and the model aggregation relationship of PSR-measurement is used to define; the power quality monitoring related data is also processed.
- the method is aimed at the business characteristics of the cockpit of the patrol center, and proposes a higher level abstract method for the modeling description of the cockpit, so that the advanced application module built on the platform can focus on the problem logic itself instead of
- the details of the underlying implementation or the organization of various messy data improve the efficiency and accuracy of software development and shorten the development cycle.
- the unified grid model is realized, a complete data platform is adopted, a flexible metadata mechanism is adopted, and a service-oriented multi-layer architecture is used to share power resources resources.
- Figure 1 is a CIM package extension of the present invention
- Figure 2 is a generalized measurement definition of the present invention.
- UCIM mainly expands the secondary equipment, fixed value, generalized measurement model for various professional information, and job-related description.
- the power system resource model is mainly based on equipment containers and primary equipment.
- the equipment container model adopts three levels of plant station, voltage level and interval. Conductive equipment with clear voltage level is placed at an interval of specific voltage level, cross-voltage level object and plant station.
- the main object can be placed directly in the interval directly belonging to the plant station. For example, the main transformer interval where the main transformer is located can directly belong to the substation.
- the equipment model mainly includes: power primary equipment such as transformers, switches, knife gates, busbars, and AC line segments.
- the project expands the IED in UCIM to describe the secondary device model, and adds related information objects, such as fixed values.
- the public power system model resource model system defined by the South Network is complete, but it usually only contains the primary equipment. It needs to extend the monitoring device to the association of the assets CIM::Asset to support the data association and correspondence with the PMS system, and The device parameters in the model built by the functional location are not detailed enough to fully meet the needs of the platform.
- Asset-related information is described in the AssetInfo package.
- AssertInfo is an inheritance of Asset and has a relationship of (0..*-------0..*) (ie many-to-many) with the power resource PowerSystemResource.
- a power system resource object is often associated with one or more asset objects. Taking a transformer as an example, a master variable object may be associated with multiple asset objects, including transformer assets and sets. Manage assets and so on.
- Part of the equipment parameters are attributed directly to the asset object, such as the equipment model and phase of the transformer asset, and more parameters are difficult to describe with fixed attributes, such as high-voltage-low-voltage load loss and oil temperature alarm value.
- fixed attributes such as high-voltage-low-voltage load loss and oil temperature alarm value.
- the relationship between most device assets and device parameters is bound using a one-to-many association.
- the patrol center involves eight categories of data, and in the model there will be objects of the measurement type.
- the measurement is described by two levels of measurement and measurement values, and one measurement may be associated with multiple measurements of different data sources.
- the above describes in detail a specific embodiment of the present invention, which is directed to the business characteristics of the cockpit of the patrol center, and proposes a higher level of abstraction for solving the problem, so that the advanced application module built on the platform can focus on the application.
- the problem logic itself rather than the details of the underlying implementation or the organization of various messy data, improves the efficiency and accuracy of software development and shortens the development cycle.
- the unified grid model is realized, a complete data platform is adopted, a flexible metadata mechanism is adopted, and a service-oriented multi-layer architecture is used to share power resources resources.
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Abstract
本发明涉及采用广义量测横向关联方式的统一建模方法,其特征在于,它包括以下步骤:电网设备建模;二次设备遵照IEC61850建模,并建立一次、二次设备关联关系;资产建模;其他数据抽象建模;建立PSR为中心的广义量测模型;元模型定义,所述方法也适用于电力***中各相关信息的自动化***的统一建模,本发明所述方法提高了软件开发的效率和正确率,缩短了开发的周期,实现了统一电网模型,有完备的数据平台,采取灵活的元数据机制,运用面向服务的多层体系架构,以便电力信息化资源资源共享。
Description
本发明应用于各电力***调度自动化领域,特别涉及巡维中心相关自动化***的统一建模,也适用于其他自动化***的数据整合。
南方电网对变电站运维技术持续开展了深入研究和试点应用,其中变电站驾驶舱是变电站运行和维护的一体化技术平台,整合了变电站的监视、控制、设备监测和维护管理等专业技术***信息。随着南方电网公司***运行部主导研究电力***综合运行驾驶舱技术以来,对负责变电站设备运维的巡维中心工作关注越来越多。为推进南方电网公司提高巡维效率,提高设备管理水平,在变电站驾驶舱的研究基础上,开发建设巡维中心驾驶舱***。该***综合能量管理***、生产管理信息***、设备状态监测中心等与设备资产相关数据及信息,服务于不同层次用户,支撑以巡维中心及其下辖变电站设备为对象的资产状态评估、风险分析和运维效率优化工作。
巡维中心驾驶舱是变电运维的一体化工作平台,整合多专业***,建设统一的信息平台,规范各类业务界面,开展业务间的协同作业,为设备监测和运维管理提供一站式支撑。
提高巡维中心处理事故的能力和响应速度,降低巡维中心运行人员的工作强度和工作量,提高运维效率和运维质量。此外,对丰富专业知识的计算机化,以及数据分析自动化程度的提高,也降低运维业务对运行人员个人专业知识素质的依赖,提高运维方案和作业结果的
标准化程度。
其中,巡维中心涉及的各类数据的统一建模是巡维中心驾驶舱的基础。目前,CIM规范和南方电网相关规范中,定义了各相关数据,但是对二次设备及其信息的定义不够全面,各类数据也没有有效整合在一起。
为了适应这种需求的多样性,本发明提出了一种采用广义量测横向关联方式的统一建模方法,这是在多年自动化相关***运行经验积累的基础上所做的新尝试。
发明内容
针对现有技术的不足,本发明基于IECTC57公共信息模型CIM,参考IEC61850规范,提出了一种采用广义量测横向关联方式的统一建模方法,其目的是将巡维中心所涉及的各类数据信息进行各自抽象建模的基础上,采用广义量测横向关联的方式进行统一建模,以达到对实际***的抽象,通过模型对实际生产中的自动化数据和各类设备进行控制和管理。同时定义符合此思路元模型,元模型包含了领域知识,它约束建模行为,保证建模阶段建立的模型是遵循领域约束的。所述方法提高了解决问题的抽象层次,使得建立在此平台上的高级应用模块可以把关注点放在问题逻辑本身而不是底层实现的细节或者各种杂乱数据的组织,提高了软件开发的效率和正确率,缩短了开发的周期。
CIM:公用信息模型。CIM是一个抽象模型,采用可视化的面向对象的建模语言UML来设计。CIM对主要的电网设备和相关对象进行
了建模,包含这些对象的公共类和属性,以及它们之间的关系。IEC TC57的第14工作组(WG14)在系列标准IEC61968中扩展了CIM,增补了若干设备资产信息模型,包括:资产管理、工作管理、建设管理、地理信息***(GIS)、停运管理等,使CIM模型进一步的完善,涵盖了电力企业中的所有对象。
巡维中心驾驶舱是变电运行和维护的一体化技术平台,整合了变电站的监视、控制、设备监测和维护管理等专业技术***信息,以“标准化”和“模块化”为主要原则,以“***精简、信息规范、界面统一、业务协同”为主要技术特征,为电网监控、设备监测和运行管理提供一站式的支撑。涉及八大类数据,主要为常规调度scada、wams自动化***数据、设备状态监测数据、电能质量***、故障信息***数据、MIS资产管理等。
本发明的技术方案如下所述:本发明就是用广义量测横向关联方式对电力行业运行相关的所有自动化数据进行统一建模,具体包含以下步骤:
a)电网设备建模;
电网设备抽象为电力***资源,其模型以设备容器和一次设备为主,遵照CIM定义,在模型/容器的整体继承关系中,继承的顶端模型映射到实时库中。设备容器模型采用厂站、电压等级、间隔三层,具有明确电压等级的导电设备放于特定电压等级的间隔下,跨电压等级对象和厂站主体对象可直接置于直属于厂站的间隔内,如主变所在的主变间隔可直属于变电站。设备模型主要包含:变压器、开关、刀
闸、母线、交流线段等电力一次设备。
b)对现有CIM扩展,二次设备遵照IEC61850建模,并建立一次、二次设备关联关系;
即根据IEC61850对所有二次设备(包括保护装置、集中录波器、测控等)建立模型IED,IED与间隔Bay建立聚合关系,表现为层次关系。由于二次设备的特殊性,二次设备的相关采集信息和一次设备的量测量相同建模,并建立这些量测和二次设备的关系。在此基础上,在二次设备模型中增加对一次、二次设备关联关系,如附图1。此模型定义包含了故障时保护等二次装置动作数据的定义。
c)资产建模:
南网定义的公共电力***模型资源模型体系自身虽然完整,但往往只包含了一次设备,需要扩展监测装置到对CIM::Asset(即资产)的关联,来支持与PMS***的数据关联和对应,而且按照功能位置构建的模型中设备参数不够详细,不能完全满足平台的需要。
而状态检修需要大量的设备参数作为评价依据,而这些设备参数很多是从属于资产对象的,因此资产模型必不可少。资产相关信息在AssetInfo(资产信息)包中描述,AssertInfo是对Asset的继承,并和电力资源PowerSystemResource有关联关系。一个电力***资源对象往往关联一个或多个资产对象,以变压器为例,一个主变对象可能与多个资产对象关联,包括变压器资产、套管资产等。
设备参数一部分以属性的方式直属于资产对象,如变压器资产的设备型号、相位等,而更多的参数很难以固定的属性来描述,如高压
-低压负载损耗、油温报警值等。为了增强设备参数的灵活性,而不局限于几个固定的属性,使用一对多关联的方式绑定大部分设备资产与设备参数的关系。
d)其他数据抽象建模;
设备状态监测相关数据主要是面向一次设备,所以针对设备状态监测增加量测类型,采用PSR-量测的模型聚合关系来定义;电能质量监测相关数据也同样处理。
e)建立PSR为中心的广义量测模型;
对于以上各专业范围的数据需要横向广联,如附图2,创建广义量测模型,映射实时库。
f)元模型定义。
所述方法针对巡维中心驾驶舱的业务特点,对驾驶舱的模型化描述提出了更高层次的抽象方法,使得建立在此平台上的高级应用模块可以把关注点放在问题逻辑本身而不是底层实现的细节或各种杂乱数据的组织,提高了软件开发的效率和正确率,缩短了开发的周期。实现了统一电网模型,有完备的数据平台,采取灵活的元数据机制,运用面向服务的多层体系架构,以便电力信息化资源资源共享。
下面结合附图及具体实施例对本发明再作进一步详细的说明。
图1是本发明的CIM包扩充;
图2是本发明的广义量测定义。
在CIM基础上参考南网相关标准,扩充定义统一的模型UCIM。UCIM在CIM基础上主要对二次设备、定值、面向各专业类信息的广义量测模型、作业相关描述等部分进行了扩充。
1、电力***资源模型
电力***资源模型以设备容器和一次设备为主,设备容器模型采用厂站、电压等级、间隔三层,具有明确电压等级的导电设备放于特定电压等级的间隔下,跨电压等级对象和厂站主体对象可直接置于直属于厂站的间隔内,如主变所在的主变间隔可直属于变电站。设备模型主要包含:变压器、开关、刀闸、母线、交流线段等电力一次设备。
项目依据IEC61850中IED的相关定义,在UCIM中扩充了IED来描述二次设备模型,并增加了相关信息对象,比如定值等。
2、资产模型
南网定义的公共电力***模型资源模型体系自身虽然完整,但往往只包含了一次设备,需要扩展监测装置到对资产CIM::Asset的关联,来支持与PMS***的数据关联和对应,而且按照功能位置构建的模型中设备参数不够详细,不能完全满足平台的需要。
而状态检修需要大量的设备参数作为评价依据,而这些设备参数很多是从属于资产对象的,因此资产模型必不可少。资产相关信息在AssetInfo包中描述,AssertInfo是对Asset的继承,并和电力资源PowerSystemResource有(0..*-------0..*)(即多对多)的关联关系。一个电力***资源对象往往关联一个或多个资产对象,以变压器为例,一个主变对象可能与多个资产对象关联,包括变压器资产、套
管资产等。
设备参数一部分以属性的方式直属于资产对象,如变压器资产的设备型号、相位等,而更多的参数很难以固定的属性来描述,如高压-低压负载损耗、油温报警值等。为了增强设备参数的灵活性,而不局限于几个固定的属性,使用一对多关联的方式绑定大部分设备资产与设备参数的关系。
3.广义量测模型
巡维中心涉及八大类数据,在模型里将以量测类型的对象存在。在CIM模型中,量测由量测和量测值两级对象来描述,一个量测可能关联数据来源不同的多个量测值。在此基础上扩充CIM的量测包,建立广义量测模型,如下图。以电力***资源对象为中心,建立量测、资产的关联关系,将8大类数据和***关联贯穿。
以上详细描述了本发明的具体实施方式,该方法针对巡维中心驾驶舱的业务特点,对解决问题提出了更高层次的抽象,使得建立在此平台上的高级应用模块可以把关注点放在问题逻辑本身而不是底层实现的细节或各种杂乱数据的组织,提高了软件开发的效率和正确率,缩短了开发的周期。实现了统一电网模型,有完备的数据平台,采取灵活的元数据机制,运用面向服务的多层体系架构,以便电力信息化资源资源共享。
而本发明的范围不应局限于这些描述。任何在本发明原理范围内的修改、改进都属于本发明的保护范围。
Claims (4)
- 本发明提供采用广义量测横向关联方式的统一建模方法,该方法用于在一次电网故障中,使通过不同智能装置上送的不同格式和内容的各类信息,能够按用户需求的形式在WINDOWS、UNIX操作平台上完整表现出来;该方法通过模板的修改而不用修改故障报告模块软件程序从而适应智能装置上送数据格式的修改和用户对故障报告、动作报告的格式和内容的需求的变化,其特征在于,该采用广义测横向关联方式的统一建模方法方法包含以下步骤:a)电网设备建模;b)二次设备遵照IEC61850建模,并建立一次、二次设备关联关系;c)资产建模;d)其他数据抽象建模;e)建立PSR为中心的广义量测模型;f)元模型定义及实时库映射。
- 根据权利要求1所述的采用广义量测横向关联方式的统一建模方法方法,其特征在于,步骤b)中所述的二次设备建立模型IED,即根据IEC61850对所有二次设备建立模型IED,IED与间隔Bay建立聚合关系,表现为层次关系,由于二次设备的特殊性,二次设备的相关采集信息和一次设备的量测量相同建模,并建立这些量测和二次设备的关系。
- 根据权利要求1所述的采用广义量测横向关联方式的统一建模方法方法,其特征在于,其中步骤d)包括:设备状态监测相关数 据主要是面向一次设备,所以针对设备状态监测增加量测类型,采用PSR-量测的模型聚合关系来定义;电能质量监测相关数据也同样处理。
- 根据权利要求1所述的采用广义量测横向关联方式的统一建模方法方法,其特征在于,其中步骤e)包括:对于以上各专业范围的数据需要横向广联,创建广义量测模型,映射实时库。
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