An Advanced STATCOM Model for Optimal Power Flows Using Newton's Method
An Advanced STATCOM Model for Optimal Power Flows Using Newton's Method
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DOI：
10.1109/tpwrs.2013.2287914
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发表时间：
2014-03
影响因子：
6.6
通讯作者：
B. Kazemtabrizi;E. Acha
中科院分区：
文献类型：
--
作者：
B. Kazemtabrizi;E. Acha
本文给出了一种新的潮流STATCOM模型的最优潮流公式。新模型以最优的方式对脉宽调制控制的电压型变流器(VSC)的基频运行提出了另一种、有洞察力的解释。新模型提供了转换器内部欧姆损耗和开关损耗的显式表示，在OPF公式的背景下，它产生了使这些功率损耗最小的最佳操作点。STATCOM模型在变流器的交流侧和直流侧的运行参数方面都具有无与伦比的控制能力。当使用牛顿方法在最优潮流解的上下文中表达时，这种控制建模的灵活性是最好的。STATCOM方程使用拉格朗日函数以非常自然的方式结合到OPF公式中，从而使用单一参照系获得有效的最优解。用乘子法同样很好地处理了变量的不等约束集。通过两个样本系统验证了新模型的有效性。
This paper presents the optimal power flow (OPF) formulation of a recent power flow STATCOM model . The new model puts forward an alternative, insightful interpretation of the fundamental frequency operation of the PWM-controlled voltage source converter (VSC), in an optimal fashion. The new model makes provisions for the explicit representation of the converter's internal ohmic and switching losses which in the context of an OPF formulation, yields an optimum operating point at which these power losses are at a minimum. The STATCOM model possesses unparalleled control capabilities in the operational parameters of both the AC and DC sides of the converter. Such control modeling flexibility is at its best when expressed in the context of an OPF solution using Newton's method. The STATCOM equations are incorporated into the OPF formulation using Lagrangian functions in quite a natural manner for efficient optimal solutions using a single frame-of-reference. The inequality constraint set of variables is handled equally well using the multipliers method. The prowess of the new model is demonstrated using two sample systems.