Search Results for author: David J. Hill

Found 9 papers, 0 papers with code

Bumpless Topology Transition

no code implementations18 Sep 2022 Tong Han, Yue Song, David J. Hill

The topology transition problem of transmission networks is becoming increasingly crucial with topological flexibility more widely leveraged to promote high renewable penetration.

Optimal Topology Transition

no code implementations22 Aug 2022 Tong Han, David J. Hill, Yue Song

This aims to find the topology transition trajectory from an initial topology to a desired terminal topology, which optimizes certain transition performance and satisfies operational constraints.

Consensus-based Frequency and Voltage Regulation for Fully Inverter-based Islanded Microgrids

no code implementations24 Jul 2022 Y. Cheng, Tao Liu, David J. Hill, Xue Lyu

The proposed method includes the active power sharing in voltage control to improve the reactive power sharing accuracy and thus generalizes some existing secondary frequency and voltage control methods.

Formulating Connectedness in Security-Constrained Optimal Transmission Switching Problems

no code implementations6 Feb 2022 Tong Han, David J. Hill, Yue Song

This paper focuses on the issue of network connectedness (NC) in security-constrained optimal transmission switching problems, which is complicated by branch contingencies and corrective line switching.

Dispatch of Virtual Inertia and Damping: Numerical Method with SDP and ADMM

no code implementations25 Jul 2021 Tong Han, David J. Hill

Virtual inertia and damping provided by inverters are essential to synchronism and frequency stability of future power grids.

Chance Constrained Economic Dispatch Considering the Capability of Network Flexibility Against Renewable Uncertainties

no code implementations23 Jul 2021 Yue Song, David J. Hill, Tao Liu

In the proposed model, both power generations and line susceptances become variables to minimize the expected generation cost and guarantee a low probability of constraint violation in terms of generations and line flows under renewable uncertainties.

Augmented Synchronization of Power Systems

no code implementations24 Jun 2021 Peng Yang, Feng Liu, Tao Liu, David J. Hill

Here, we formulate the empirical wisdom by the concept of augmented synchronization and aim to bridge such a theory-practice gap.

Cost-Effective Bad Synchrophasor Data Detection Based on Unsupervised Time Series Data Analytics

no code implementations3 May 2020 Lipeng Zhu, David J. Hill

Afterwards, TS subsequences contaminated with bad PMU data are identified by characterizing anomalous STNNs.

Time Series

Event-triggered controllers based on the supremum norm of sampling-induced error

no code implementations14 Jun 2018 Lijun Zhu, Zhiyong Chen, David J. Hill, Shengli Du

Specifically, the closed-loop system is associated with a pair of auxiliary input and output.

Systems and Control

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