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Sweep coverage of discrete time multi-robot networks with general topologies

Chao Zhai — 2014

Kybernetika

This paper addresses a sweep coverage problem of multi-robot networks with general topologies. To deal with environmental uncertainties, we present discrete time sweep coverage algorithms to guarantee the complete coverage of the given region by sweeping in parallel with workload partition. Moreover, the error between actual coverage time and the optimal time is estimated with the aid of continuous time results. Finally, numerical simulation is conducted to verify the theoretical results.

Coordination control and analysis of TCSC devices to protect electrical power systems against disruptive disturbances

Zhaoxu Wang;  Chao Zhai;  Hehong Zhang;  Gaoxi Xiao;  Guanghou Chen;  Yulin Xu — 2022

Kybernetika

In this work, we study coordination control and effective deployment of thyristor-controlled series compensation (TCSC) to protect power grids against disruptive disturbances. The power grid consists of flexible alternate current transmission systems (FACTS) devices for regulating power flow, phasor measurement units (PMUs) for detecting system states, and control station for generating the regulation signals. We propose a novel coordination control approach of TCSC devices to change branch impedance...

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