Data-Driven Dynamic Equivalents for Power System Areas From Boundary Measurements

Data-Driven Dynamic Equivalents for Power System Areas From Boundary Measurements
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边界测量中电力系统区域的数据驱动动态等效

DOI:
10.1109/tpwrs.2018.2867791
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发表时间:
2019
影响因子:
6.6
通讯作者:
Stankovic, Aleksandar M.
Stankovic, Aleksandar M.
中科院分区:
工程技术1区
文献类型:
--
作者:
Saric, Andrija T.;Transtrum, Mark T.;Stankovic, Aleksandar M.

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本文描述了一种仅基于边界母线和支路上可用在线测量的外部子系统动态等值参数辨识的算法。静态等值部分由边界节点(分隔内部和外部子系统的节点)的等值阻抗表示,并使用改进的(最小损耗)径向、等值和独立方法计算。针对虚拟母线中基于同步发电机(SG)的等值(主要用于生产外区)、基于动态负荷(DL)的等值(主要用于负荷外区)或基于(SG+DL)的等值(对于混合外区)的参数辨识,采用Lvenberg-MarQuardt加权最小二乘非线性优化方法,最小化可用在线测量值与简化电力系统暂态响应之间的方差。并以IEEE14节点和441节点实际测试系统为例,说明和验证了所提出的电力系统等值推导技术。
The paper describes an algorithm for parameter identification of a dynamic equivalent for an external subsystem, based solely on the available online measurements in boundary buses and branches. Static equivalent part is represented by equivalent impedances from boundary buses (ones that separate the internal and external subsystems) and calculated using the modified (minimum loss) radial, equivalent, and independent method. Parameter identification of synchronous generator (SG)-based equivalent (for predominantly production external areas), dynamic load (DL)-based equivalent (for predominantly load external areas), or (SG + DL)-based equivalent (for mixed external areas) in fictitious buses is performed by Levenberg-Marquardt weighted least-square nonlinear optimization, which minimizes the variances between available online measurements and transient responses of the reduced power system. The IEEE 14-bus and 441-bus real-world test systems are used to illustrate and test the proposed power system equivalent derivation technique.
电能系统瞬态分析中基于方程和信号的模型的集成
DOI: --
发表时间: 2006
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