کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5001428 | 1460869 | 2017 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A novel network model for optimal power flow with reactive power and network losses
ترجمه فارسی عنوان
یک مدل شبکه جدید برای جریان مطلوب جریان با توان راکتیو و خسارت شبکه
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
مهندسی انرژی و فناوری های برق
چکیده انگلیسی
To improve the accuracy of the DC network model, we re-examine the power flow equations and propose an improved network model for optimal power flow (OPF) calculation with reactive power and network losses. Voltage angle and the square of voltage magnitude are used as independent variables. A mathematical transformation of the nonlinear voltage magnitude term is used, which decomposes the voltage magnitude term to a linear expression and a quadratic expression. The quadratic expression presents the influence of voltage magnitude on network losses. To handle the non-convexity of the OPF model caused by the network losses, a convex relaxation method is used. The relaxed model and the proposed OPF model are typically equivalent in transmission systems. Methods of restricting the potential relaxation errors are introduced. It is shown that the accuracy of the proposed network model can be further improved with initial points of voltage angles. Case studies in several IEEE benchmark systems validate the performance of the proposed formulation and approach.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electric Power Systems Research - Volume 144, March 2017, Pages 63-71
Journal: Electric Power Systems Research - Volume 144, March 2017, Pages 63-71
نویسندگان
Zhifang Yang, Haiwang Zhong, Qing Xia, Chongqing Kang,