کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
764109 1462884 2014 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optimal decentralized valley-filling charging strategy for electric vehicles
ترجمه فارسی عنوان
استراتژی شارژ پر کردن دره بهینه برای وسایل نقلیه الکتریکی
کلمات کلیدی
خودرو الکتریکی، دره پر کردن، استراتژی شارژ خودکار شبکه هوشمند، الگوی شارژ
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
چکیده انگلیسی


• An implementable charging strategy is developed for electric vehicles connected to a grid.
• A two-dimensional pricing scheme is proposed to coordinate charging behaviors.
• The strategy effectively works in decentralized way but achieves the systematic valley filling.
• The strategy allows device-level charging autonomy, and does not require a bidirectional communication/control network.
• The strategy can self-correct when confronted with adverse factors.

Uncoordinated charging load of electric vehicles (EVs) increases the peak load of the power grid, thereby increasing the cost of electricity generation. The valley-filling charging scenario offers a cheaper alternative. This study proposes a novel decentralized valley-filling charging strategy, in which a day-ahead pricing scheme is designed by solving a minimum-cost optimization problem. The pricing scheme can be broadcasted to EV owners, and the individual charging behaviors can be indirectly coordinated. EV owners respond to the pricing scheme by autonomously optimizing their individual charge patterns. This device-level response induces a valley-filling effect in the grid at the system level. The proposed strategy offers three advantages: coordination (by the valley-filling effect), practicality (no requirement for a bidirectional communication/control network between the grid and EV owners), and autonomy (user control of EV charge patterns). The proposed strategy is validated in simulations of typical scenarios in Beijing, China. According to the results, the strategy (1) effectively achieves the valley-filling charging effect at 28% less generation cost than the uncoordinated charging strategy, (2) is robust to several potential affecters of the valley-filling effect, such as (system-level) inaccurate parameter estimation and (device-level) response capability and willingness (which cause less than 2% deviation in the minimal generation cost), and (3) is compatible with device-level multi-objective charging optimization algorithms.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy Conversion and Management - Volume 78, February 2014, Pages 537–550
نویسندگان
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