暂态能量函数法在区域电网中的应用研究  

Research on Application of Transient Energy Function in Regional Power Grid

作　　者：汪如松[1] 刘涤尘[1] 廖清芬[1] 云雷[1] 孙俊龙[1] 

机构地区：[1]武汉大学电气工程学院,湖北武汉430072

出　　处：《陕西电力》2011年第9期6-9,共4页Shanxi Electric Power

基　　金：国家自然科学基金项目(51077103);中国博士后科学基金资助项目(20080430376)

摘　　要：现代电力系统的规模不断扩大、特高压项目逐步建成,电力系统日趋复杂,因此,系统运行更加接近稳定极限状态,安全稳定性问题日趋严重。本文提出了一种基于区域等值系统模型的暂态能量函数,利用该能量函数法可以计算暂态能量、临界能量,判断机组失稳与否。并应用此方法对8机36节点系统进行了暂态稳定性分析,最后结合PSASP仿真验证了该方法的有效性。For the case of continuing expanding scale of modern power system, gradually building UHV project and the growing complexity of power systems, power systems run closer to the ultimate state, and its security and stability problems have become more serious. To better describe the dynamic response of grid, this paper proposes a regional-equivalent-system model based transient energy function, which can be used to calculate the transient energy ＆ critical energy and determine the units operation stability. Finally, this paper performs the transient stability analysis of 8-machine-36-node system by the proposed method, and confirms its validity by PSASP simulation.

关 键 词：广域等值系统 暂态能量函数 稳定平衡点 

分 类 号：TM712[电气工程—电力系统及自动化]