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Type: Conference paper
Title: An experimental platform of variable speed pumped storage unit under wave disturbance: Introduction and preliminary progress
Author: Yang, W.
Yang, J.
Zeng, W.
Zhao, Z.
Zheng, G.
Peng, T.
Huang, Y.
Hu, J.
Zeng, Z.
Yang, J.
Wang, X.
Chen, M.
Citation: IOP Conference Series : Earth and Environmental Science, 2021, vol.774, iss.1, pp.012151-1-012151-7
Publisher: IOP Publishing
Publisher Place: online
Issue Date: 2021
Series/Report no.: IOP Conference Series : Earth and Environmental Science; 774
ISSN: 1755-1307
Conference Name: IAHR Symposium on Hydraulic Machinery and Systems (21 Mar 2021 - 26 Mar 2021 : virtual online)
Statement of
Weijia Yang, Jiandong Yang, Wei Zeng, Zhigao Zhao, Guiqiao Zheng, Tao Peng, Yifan Huang, Jinhong Hu, Zhenyu Zeng, Jiebin Yang, Xuewu Wang, Man Chen
Abstract: The importance of pumped storage plants (PSPs) is continuously increasing in power systems with more and more variable renewable energies. For the research and development of PSPs, variable speed technology and sea-water PSP are two important new orientations. In this paper, an experimental platform of variable speed pumped storage unit under wave disturbance is introduced. The purpose of the platform is to study the design and operation mechanism of variable speed PSP based on various common technical problems, especially for the four aspects: transient processes, variable speed unit, coordination control, wave disturbance. The platform adopts a Chinese sea-water PSP in feasibility stage as the prototype, and a model scale of 1:4 is applied. It consists of nine sub-systems, including waterway system, variable speed reversible model unit, circulating water system, speed governor system, AC excitation and electric protection, coordination control, monitoring system, intelligent AC load and measurement system. The model unit contains a reversible pump turbine, a doubly fed induction machine, etc. The speed variation range is ┬▒8%, and the rated power is 78.13 kW. The model runner meets the IEC standard with a reference diameter of 284.3 mm. The upstream water tank is a closed pressure tank that can adjust the pressure and discharge. The downstream water tank is an open water tank that can simulate wave level fluctuation. Regarding the control system, it has four core parts: local control unit, speed governor, converter and coordination controller. The experimental study content contains three key aspects: (1) performance validation for variable speed unit; (2) operating stability under complex disturbances; (3) capability of variable speed PSP during transient processes. The experimental study based on the platform aims for laying a theoretical and technical foundation for the follow-up construction and operation of real seawater PSPs with variable speed units.
Rights: Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Published under licence by IOP Publishing Ltd
DOI: 10.1088/1755-1315/774/1/012151
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Civil and Environmental Engineering publications

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