光伏并网系统CIM建模研究
南京工程学院, 电力工程学院, 江苏南京 211167
| 摘 要： | 为开展光伏并网系统电压稳定在线监控仿真系统研究，本文以含有一个可灵活设置容量（包括分布式、较大规模、大规模和超大规模等）的光伏电站的典型3节点电力系统为研究对象，依据IEC 61970-301公共信息模型（Common Information Model, CIM）标准，采用Rational Rose软件和统一建模语言（Unified Modeling Language, UML），研究了光伏并网系统的CIM建模方法，建立了光伏并网系统网络连接模型、各负荷模型、量测模型及拓扑模型；同时为简化建模，将光伏电站作为负荷处理。在建立的光伏并网系统CIM模型基础上，研究将面向对象的公共信息模型映射到关系型数据库的方法，建立了实用的数据库映射图，再运用数据库技术将所建的光伏并网系统CIM模型存入建立的数据库，供能量管理系统EMS和光伏并网系统电压稳定在线监控等各种应用软件使用。可将数据库与光伏并网系统电压稳定在线监控软件进行技术性连接，完成厂站端与监控端的通信。 |
| 关 键 词： | 光伏并网系统; 公共信息模型（CIM）; 面向对象建模; 数据库映射; 电压稳定在线监控 |
| DOI： | 10.57237/j.jest.2023.01.002 |
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收稿日期: 2022-11-26
接受日期: 2023-01-13
在线出版日期: 2023-02-03
Study of CIM Modeling for a PV Grid-Connected System
School of Electric Power Engineering, Nanjing Institute of Technology, Nanjing 211167, China
| Abstract: | To conduct the research on voltage stability online-monitoring simulation system in the photovoltaic (PV) power gird-connected system, a classic 3-bus power system containing a PV power station with a flexible setting capacity (including distributed PV, relatively large-scale and large-scale PV, and super large-scale PV base, etc.) is taken as the test example. According to the IEC 61970 Standard Part 301 (Common Information Model, CIM), CIM modeling method for the PV grid-connected 3-bus system is studied by using the Rational Rose software and the unified modeling language UML, and the PV grid-connected system’s network connection model, each load model, measurement model and topological model are established; meanwhile, the PV power is treated as a load model to simplify the modeling process. On the basis of the established CIM model of the PV grid-connected system, the method of mapping the common information model to the relational database is studied and an applied mapping diagram is set up. Then the database technology is used to deposit the established CIM model into the created database for the use of Energy Manage System (EMS) and each utility software such as the voltage stability online-monitoring software in the PV grid-connected system. Then, the database is technically connected to the voltage stability online-monitoring software of the PV grid-connected system, and the communication between the station terminal and the monitoring terminal can be realized. |
| Keywords: | Photovoltaic (PV) Grid-Connected System; Common Information Model (CIM); Object Oriented Modeling; Database Mapping; Voltage Stability Online-Monitoring |
基金
| 1. | 江苏省大学生创新创业训练计划重点项目《光伏并网系统保护与稳控协调控制策略研究》(202211276009Z). |
参考文献
| [1] | 张慎明, 刘国定. IEC 61970标准系列简介 [J]. 电力系统自动化, 2002, 26 (14): 1-6. |
| [2] | 丁明, 王伟胜, 王秀丽, 等. 大规模光伏发电对电力系统影响综述 [J]. 中国电机工程学报, 2014, 34 (1): 1-14. |
| [3] | 刘运鑫, 姚良忠, 廖思阳, 等. 光伏渗透率对电力系统静态电压稳定性影响研究 [J]. 中国电机工程学报, 2022, 42 (15): 5484-5496. |
| [4] | 李升, 卫志农, 孙国强, 等. 大型光伏电站接入多机系统暂态电压稳定性研究 [J]. 太阳能学报, 2018, 39 (12): 3356-3362. |
| [5] | 周伊琳, 孙建伟, 黄缙华, 等. 基于 IEC61970 标准的电力系统保护模型扩展方案研究与应用 [J]. 电力系统保护与控制, 2013, 41 (14): 120-125. |
| [6] | 胡勇, 郭子健, 刘奇峰, 等. 基于IEC 61970/61850的电动汽车充电站监控系统建模方案 [J]. 电力系统自动化, 2013, 37 (2): 91-96. |
| [7] | 齐林海, 柳超, 任旭. 基于 IEC 61970 的电网拓扑分析结果共享技术的研究 [J]. 电力系统保护与控制, 2016, 44 (17): 146-150. |
| [8] | 黄良, 高正浩, 曹洪, 等. 一二次系统融合的电网风险评估实用化计算方法及数据建模研究 [J]. 电力系统保护与控制, 2016, 44 (17): 104-110. |
| [9] | 崔巍, 史永, 孙兵. 基于IEC 61970/61968电网模型构建和整合 [J]. 电力系统保护与控制, 2011, 39 (17): 60-63. |
| [10] | 张少卿, 王彬, 符杨, 等. 基于扩展IEC 61970 CIM的园区蒸汽供热系统标准化建模 [J]. 电力系统自动化, 2018, 42 (4): 70-76. |
| [11] | 曹阳, 姚建国, 杨胜春, 等. 智能电网核心标准IEC 61970最新进展 [J]. 电力系统自动化, 2011, 35 (17): 1-4. |
| [12] | 李升, 卫志农, 孙国强, 等. 大规模光伏发电并网系统电压稳定分岔研究 [J]. 电力自动化设备, 2016, 36 (1): 17-23. |
| [13] | Sheng Li, Zhinong Wei, Yanan Ma, et al. Prediction and control of Hopf bifurcation in a large-scale PV grid-connected system based on an optimised support vector machine [J]. The Journal of Engineering, 2017, 2017 (14): 2666-2671. |
| [14] | Sheng Li, Zhinong Wei, Yanan Ma. Fuzzy load-shedding strategy considering photovoltaic output fluctuation characteristics and static voltage stability [J]. Energies, 2018, 11 (4): 779. |
| [15] | Sheng Li, Zhiyang Cao, Jian Cui, et al. Design of voltage stability monitoring simulation system for PV grid-connected system [J]. Journal of Physics: Conference Series, 2021, 1983: 012079. |
| [16] | JP Britton, Arnold N. deVos. CIM-based standards and CIM evolution [J]. IEEE Transactions on Power Systems, 2005, 20 (2): 758-764. |
| [17] | 翁芳芳, 林俐, 杨以涵. CIM模型与关系模型的一种映射方法的探讨 [J]. 现代电力, 2005, 22 (4): 20-24. |
