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Real-Time Dispatchability of Bulk Power Systems with Volatile Renewable Generations

Wei Wei (wei-wei04***at***mails.tsinghua.edu.cn)
Feng Liu(lfeng***at***mail.tsinghua.edu.cn)
Shengwei Mei(meishengwei***at***mail.tsinghua.edu.cn)

Abstract: The limited predictability and high variability of renewable generations has brought significant challenges on the real-time operation of bulk power systems. This paper proposes the concept of real-time dispatchability (RTDA) of power systems with variable energy resources, which focuses on investigating the impact of operating constraints and the cost of corrective actions on the flexibility of real-time dispatch. RTDA is the largest region in the uncertainty space, such that all the elements in it will not cause infeasibility while deploying a corrective action. This paper proposes a closed polyhedral form of RTDA. Moreover, an adaptive constraint generation algorithm is proposed to compute the boundaries of RTDA. Three potential applications are suggested. Case studies on the IEEE 118-bus system illustrate the RTDA concept and demonstrate the validity and efficiency of the proposed method in practical applications.

Keywords: power system, renewable generation, uncertainty

Category 1: Applications -- Science and Engineering

Category 2: Combinatorial Optimization (Polyhedra )

Citation: THU-EEA-2015002, Department of Electrical Engineering, Tsinghua University, Beijing, China, March, 2015

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Entry Submitted: 03/16/2015
Entry Accepted: 03/16/2015
Entry Last Modified: 03/16/2015

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