DOI:10.35833/MPCE.2021.000030 |
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Decision Support System for Adaptive Restoration Control of Transmission System |
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Page view: 108
Net amount: 545 |
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Author:
Ze Li1,2,Yusheng Xue3,Haohao Wang3,Lili Hao4
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Author Affiliation:
1.School of Electrical Engineering, Southeast University, Nanjing, China;2.State Grid Electric Power Research Institute (NARI Group Corporation), Nanjing, China;3.State Grid Electric Power Research Institute (NARI Group Corporation), Nanjing, China, and they are also with State Key Laboratory of Smart Grid Protection and Operation Control, Nanjing, China;4.School of Electrical Engineering and Control Science, Nanjing Tech University, Nanjing, China
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Foundation: |
This work was supported in part by the China State Grid Corporation project of the Key Technologies of Power Grid Proactive Support for Energy Transition (No. 5100-202040325A-0-0-00). |
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Abstract: |
The power system restoration control has a higher uncertainty level than the preventive control of cascading failures. In order to ensure the feasibility of the decision support system of restoration control, a decision support framework for adaptive restoration control of transmission system is proposed, which can support the coordinated restoration of multiple partitions, coordinated restoration of units and loads, and coordination of multi-partition decision-making process and actual restoration process. The proposed framework is divided into two layers, global coordination layer and partition optimization layer. The upper layer partitions the transmission system according to the power outage scenario, constantly and dynamically adjusts the partitions during the restoration process, and optimizes the time-space decision-making of inter-partition connectivity. For each partition, the lower layer pre-selects restoration targets according to the estimated restoration income, optimizes the corresponding restoration paths, and evaluates the restoration plans according to the expected net income per unit of power consumption. During the restoration process, if the restoration operation such as energizing the outage branch fails, the current restoration plan will be adaptively switched to the sub-optimal one or re-optimized if necessary. The framework includes two operation modes, i.e., the on-line operation mode and training simulation mode, and provides an information interaction interface for collaborative restoration with related distribution systems. The effectiveness and adaptability of the proposed framework is demonstrated by simulations using the modified IEEE 118-bus system. |
Keywords: |
Transmission system restoration ; two-layer decision support framework ; restoration risk and income ; restoration uncertainty ; sand table deduction |
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Received:January 15, 2021
Online Time:2021/08/04 |
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