Zhou, Weihua



PROJECT TITLE: Stability Assessment and Control of Power Electronic-Dominated Power System with Underground Cable and Reactive Power Compensation Devices

PhD period: 2017.12.01 – 2020.11.30.
Section: Electric Power Systems
Research Programme: Wind Power Systems
Supervisor: Zhe Chen
Co-Supervisor: Yanbo Wang
Contact Information

Collaborators: SINTEF, DIgSIENT.
Funding: ForskEL and the Department of Energy Technology.

ABSTRACT

Power Electronics (PE) converters are widely used for various power grid related applications, including loads (variable speed drive, heat pump, electrical vehicles), energy storage units, flexible alternating current transmission system (FACTS) and high voltage direct current (HVDC) systems, etc. The large scale applications of PE converters will bring more and more new features into power systems, e.g. harmonics, faster controllable reactive power etc. Moreover, Danish power system is changing from overhead lines based grid into underground cable (UC) or subsea cable based systems, especially for offshore wind farms, which will also drastically change the reactive power characteristics and the stability of the overall system. Clearly, the PE converters replacing synchronous generators in a cable dominated power grid will seriously challenge the performance of voltage control and stability of the existing power system.

Therefore, under the significant changes caused by large scale utilization of power electronics and cable systems, voltage control and stability analysis would urgently be needed. The aim of this project is to develop stability analysis and corresponding performance optimization method for power electronics-dominated power system with underground cable and reactive power compensation devices.

PAPERS

Publications in journals and conference papers may be found at VBN.