An Efficient Algorithm for Power Flow Optimization in PV Inverters Systems

被引:3
作者
Alsafasfeh, Qais [1 ]
Saraereh, Omar A. [2 ]
Alsafasfeh, Moath [3 ]
Maqableh, Ayman [4 ]
Khan, Imran [5 ]
Choi, Bong Jun [6 ]
机构
[1] Tafila Tech Univ, Dept Elect Power & Mechatron, Tafila, Jordan
[2] Hashemite Univ, Dept Elect Engn, Zarqa, Jordan
[3] Al Hussein Bin Talal Univ, Comp Engn Dept, Maan, Jordan
[4] Luminus Tech Univ Coll, Electromech Engn Dept, Amman, Jordan
[5] Univ Engn & Technol, Dept Elect Engn, Peshawar, Pakistan
[6] Soongsil Univ, Sch Comp Sci & Engn, Seoul, South Korea
关键词
photovoltaic; renewable energy; optimal power flow; power grid optimization; PV inverters; time-varying optimization; alternation direction multiplier; distributed generation; solar power systems; optimization algorithms;
D O I
10.1080/15325008.2020.1854373
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Aiming at the problem of optimal power flow in photovoltaic (PV) Inverters, this paper proposes a real-time algorithm for optimal power flow (OPF) in distributed PV inverters with sophisticated communication technologies and measurement. A higher accuracy and computation speed are obtained by proposing a linear, time-varying optimization method, and the objective function and constraints were linearized using the Taylor expansion under the premise of small variable changes during the short control period. By comparing with the constant linearization method, the proposed time-varying linear approximation method is more accurate and efficient. The problems faced by the centralized calculation is overcome by proposing a distributed control method which utilizes the alternating direction method of multipliers. The proposed distributed control method enables the distributed PV inverters to optimize their own power setpoints with only a little information required from neighbor nodes. Case study results demonstrate that the proposed algorithm makes the distributed PV Inverters more efficient and economical than the other methods.
引用
收藏
页码:1362 / 1377
页数:16
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