乐山电网在线安全稳定管理系统的设计和实现
发布时间：2019-04-24 15:18
【摘要】：电力企业的社会效益最重要电网正常平稳的运行,建立电网在线安全稳定管理系统,实现电网在线评估和安全预警能力,帮助减少系统故障风险,使电网运维人员能够有更多的时间、精力关注电网健康发展。本系统选择使用.NET开发,配合OPEN-3000平台,后端采用高效稳定的Oracle数据库作为存储系统,程序使用C#语言开发,利用多种暂态算法计算受控系统的安全稳定性,.NET框架下的C#可以直接生成高效的原生态可执行代码,能够大大提高事务处理速度,并能够结合.NET的框架提供自动调度和Web界面交互。本系统由数据采集子系统、分析预警子系统和控制决策子系统、离线研究四部分组成。数据采集子系统采集和处理电力系统实时状态信息,为后续的安全稳定分析和控制决策提供数据源;分析预警子系统根据实时工况对潜在故障进行综合评估及预警;当系统出现不安全或潜在不安全的情况下,启动预防控制或紧急控制策略搜索模块,向调度运行人员提供运行方式调整建议,或通过稳控系统实现紧急控制在线预决策。本文通过潮流计算、暂态稳定、动态稳定以及电压稳定等各个角度分析研究了负荷模型对仿真计算结果的影响,经过实际运行,从负荷的频率特性和电压特性方面总结出了负荷模型对大区域互联电网动态稳定性影响的特点,总结不稳定因素,使受控电网整体故障率趋缓。
[Abstract]:The most important social benefit of power enterprises is the normal and stable operation of the power grid. An on-line security and stability management system is established to realize the on-line evaluation and security early warning capability of the power grid, and help to reduce the system failure risk. So that the power grid operators can have more time, energy to focus on the healthy development of the grid. This system chooses to use .NET development, cooperate with OPEN-3000 platform, the back end uses efficient and stable Oracle database as the storage system, the program is developed with C # language, and uses a variety of transient algorithms to calculate the security and stability of the controlled system. C # under. Net Framework can directly generate efficient original eco-executable code, can greatly improve transaction processing speed, and can provide automatic scheduling and Web interface interaction combined with .NET Framework. This system consists of four parts: data acquisition subsystem, analysis and early warning subsystem and control decision subsystem. The data acquisition subsystem collects and processes the real-time state information of the power system, provides the data source for the subsequent security and stability analysis and control decision-making, and analyzes the comprehensive evaluation and early warning of the potential faults by the early warning subsystem according to the real-time working conditions. When the system is unsafe or potentially unsafe, the preventive control or emergency control strategy search module is initiated to provide the dispatcher with suggestions on how to adjust the operation mode, or to realize the emergency control online predecision through the stable control system. In this paper, power flow calculation, transient stability, dynamic stability and voltage stability are used to analyze and study the influence of load model on the simulation results. The characteristics of the influence of load model on dynamic stability of large-area interconnected power network are summarized from the aspects of load frequency characteristics and voltage characteristics, and the unstable factors are summarized, which slows down the failure rate of the controlled power grid as a whole.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP311.52;TM73
本文编号：2464553
[Abstract]:The most important social benefit of power enterprises is the normal and stable operation of the power grid. An on-line security and stability management system is established to realize the on-line evaluation and security early warning capability of the power grid, and help to reduce the system failure risk. So that the power grid operators can have more time, energy to focus on the healthy development of the grid. This system chooses to use .NET development, cooperate with OPEN-3000 platform, the back end uses efficient and stable Oracle database as the storage system, the program is developed with C # language, and uses a variety of transient algorithms to calculate the security and stability of the controlled system. C # under. Net Framework can directly generate efficient original eco-executable code, can greatly improve transaction processing speed, and can provide automatic scheduling and Web interface interaction combined with .NET Framework. This system consists of four parts: data acquisition subsystem, analysis and early warning subsystem and control decision subsystem. The data acquisition subsystem collects and processes the real-time state information of the power system, provides the data source for the subsequent security and stability analysis and control decision-making, and analyzes the comprehensive evaluation and early warning of the potential faults by the early warning subsystem according to the real-time working conditions. When the system is unsafe or potentially unsafe, the preventive control or emergency control strategy search module is initiated to provide the dispatcher with suggestions on how to adjust the operation mode, or to realize the emergency control online predecision through the stable control system. In this paper, power flow calculation, transient stability, dynamic stability and voltage stability are used to analyze and study the influence of load model on the simulation results. The characteristics of the influence of load model on dynamic stability of large-area interconnected power network are summarized from the aspects of load frequency characteristics and voltage characteristics, and the unstable factors are summarized, which slows down the failure rate of the controlled power grid as a whole.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP311.52;TM73
【参考文献】
相关期刊论文 前1条
1 王珊,张坤龙;网格环境下的数据库系统[J];计算机应用;2004年10期
，本文编号：2464553
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