Networked load frequency control of multi-area uncertain power systems via adaptive event-triggered communication scheme |
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Authors: | He Zhang Shaoyu Su Yan-Yong Zhao Junwei Lu |
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Institution: | 1. School of Automation, Nanjing University of Science and Technology, Nanjing 210094, China;2. Institute of Statistics and Big Data, Nanjing Audit University, Nanjing 211815, China;3. School of Electrical and Automation Engineering, Nanjing Normal University, Nanjing 210042, China |
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Abstract: | Load frequency control of power systems is a very important approach to keep stability and security. Unfortunately, the traditional load frequency control is not effective because of the introduction of communication networks in multi-area power systems. In order to overcome this difficulty, sampling-based load frequency control for multi-area power systems is studied via an event-triggered detector. Unlike published works, an adaptive law for event-triggered scheme is given. Since multi-area power systems with event-triggered scheme are hybrid systems, there are a lot of challenges for analysing load frequency control problem. Some lemmas and a new Lyapunov function are developed to overcome these challenges. The obtained stability and stabilization criteria can provide a tradeoff to balance the required communication resources and the desired control performance. Numerical examples verify effectiveness of the obtained results. |
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Keywords: | Corresponding author |
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