NDLI: Frequency support from modular multilevel converter based multi-terminal HVDC schemes

Content Provider	IEEE Xplore Digital Library
Author	Adeuyi, O.D. Cheah-Mane, M. Jun Liang Jenkins, N. Yanan Wu Chang Li Xueguang Wu
Copyright Year	2015
Description	Author affiliation: Inst. of Energy, Cardiff Univ., Cardiff, UK (Adeuyi, O.D.; Cheah-Mane, M.; Jun Liang; Jenkins, N.) \|\| Smart Grids Res. Inst., Beijing, China (Yanan Wu; Chang Li; Xueguang Wu)
Abstract	Multiterminal HVDC (MTDC) schemes are intended to transfer power from offshore wind farms to land and interconnect the grids of adjacent countries, through Voltage Source Converters (VSC). The modular multilevel converter (MMC) topology of VSCs is a more recent development which has low harmonics, reduced losses and occupies less space. This paper analyses the frequency support characteristics of MMC-based multiterminal HVDC schemes, using the energy transferred from the capacitance of the MMCs, wind turbine rotating mass and other AC systems. A generic formulation of an equivalent synthetic inertia constant is proposed to determine the energy transferred from the MTDC scheme. A 3-terminal MMCHVDC system is utilised to study the influence of cell capacitance of the submodules and the proposed synthetic inertia constant of the MTDC system on the frequency support capability of the MMC capacitors. The time response and energy capability of the different energy sources of the MTDC system are compared.
Starting Page	1
Ending Page	5
File Size	733237
Page Count	5
File Format	PDF
ISBN	9781467380409
DOI	10.1109/PESGM.2015.7286086
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-07-26
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Capacitance Wind turbines Voltage control HVDC transmission Converters Frequency control Capacitors offshore wind farm frequency support inertial response MMCHVDC transmission
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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