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Distributed Energy Generation and Flow Optimization: A Simultaneous Approach |
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Phuong Huu Hoang, Chuong Van Nguyen, Hyo-Sung Ahn(GIST, Korea) |
| Energy generation and flow optimization is one of primary concerns in distributed energy grids. Typically,
optimal energy generation and optimal flow are studied separately. In this paper, we propose an optimization algorithm
which considers both energy generation and energy flow simultaneously. We construct a dynamical system to seek the
optimal solution for both energy generation and energy flow. The theoretical guarantee of the proposed algorithm is
provided. In addition, we carry out a numerical simulation to demonstrate the correctness of the strategy. |
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Preliminary result on distributed solution to economic dispatch problem with power losses |
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Seungjoon Lee, Hyungbo Shim(Seoul National University, Korea) |
| In this paper, preliminary result on the distributed solution to the economic dispatch problem with power losses is presented. A distributed solution inspired by the consensus of heterogeneous agents will be proposed. Numerical simulation has been done to illustrate the efficacy of the proposed algorithm. |
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An Explicit MPC for an Interlink Converter Current Control |
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Ismi Rosyiana Fitri, Jung Su Kim, Hwachang Song(Seoul National University of Science and Technology, Korea) |
| The Model Predictive Control (MPC) is considered for interlink converter current controller as it can handle the input constraint and minimize the desired cost performance. For the purpose of reducing online computation load of the MPC, an Explicit MPC is employed. |
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Synchronization of Lur'e-type Nonlinear Systems Over Networks of Linear Dynamical Systems: Lyapunov-based Singular Perturbation Approach |
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Jisu Kim(Seoul National University, Korea), Hongkeun Kim(Korea University of Technology and Education, Korea) |
| This paper studies the synchronization problem where the nodes are Lur'e-type nonlinear systems and the edges are stable linear systems. The main tool to tackle the problem is the singular perturbation theory and it turns out that the closed-loop system at quasi-steady-state, i.e., the reduced model, corresponds to the Lur'e-type node systems with the edges treated as positive constant weights as usual. Then it is shown that the synchronization of the original closed-loop system is reached asymptotically if the reduced model synchronizes and the singular perturbation parameter is small enough. |
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Zero Dynamics Attack on Multi-agent Systems: Preliminary Study |
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Juhoon Back(Kwangwoon University, Korea) |
| Zero dynamics attack is one of stealthy attacks to cyber-physical systems. In networked control systems, where the output measurement and the control signal are delivered through networks, systems are likely to be exposed to this attack because the unavoidable ‘sample and hold’ process can make the system of non-minimum phase. In this paper, we illustrate that the multi-agent systems are vulnerable to zero dynamics attacks. |
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Distributed algorithm for economic dispatch with feasible and infeasible conditions |
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Young-Hun Lim(Gyeongnam National University of Science and Technology, Korea) |
| This paper studies the distributed algorithm for the economic dispatch problem. The economic dispatch problem is to minimize the sum of local objective functions under the feasibility constraint. To solve this problem in an initialization free manner, we construct the projection-based distributed algorithm. Then, we analyze the convergence under the feasible condition. However, due to the existence of the local capacity constraints, the supply-demand may be infeasible. In this case, we show that the proposed algorithm can measure the resource shortage in the network. |
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