An approach to suppress low-frequency oscillation in the hybrid multi-Infeed HVDC of mixed H2/H∞ robust-based control theory

• Autorzy: Li Congshan , Liu Yan , Li Yikai , He Ping , Fang Yan , Sheng Tingyu

Identyfikatory

DOI

10.24425/aee.2022.140200

• Języki publikacji: EN

Abstrakty

EN

A hybrid multi-infeed HVDC (HMIDC) system is composed of line-commutated converter-based high-voltage direct current (LCC-HVDC) and voltage-source converterbased high-voltage direct current (VSC-HVDC), whose receiving ends have electrical coupling. To solve the problem of low-frequency oscillation (LFO) caused by insufficient damping in the HMIDC system, according to the multi-objective mixed 𝐻2/𝐻∞ output feedback control theory with regional pole assignment, an additional robust damping controller is designed in this paper, which not only has good robustness, but also has strong adaptability to the change of system operation mode. In the paper, the related oscillation modes and transfer function of the controlled plant are obtained, which are identified by the total least squares estimation of signal parameters via rotary invariance technology (TLS-ESPRIT). In addition, the control-sensitive point (CSP) for suppressing LFO based on the small disturbance test method is determined, which is suitable for determining the installation position of the controller. The results show that the control sensitivity factor of VSC-HVDC is greater than that of LCC-HVDC so that adding an additional damping controller to VSC-HVDC is better than LCC-HVDC in suppressing the LFO of HMIDC. Finally, a hybrid double infeed DC transmission system with three receiving terminals is built on PSCAD/EMTDC where the time-domain simulations are performed to verify the correctness of the CSP selection and the effectiveness of the controller.

Słowa kluczowe

EN

additional damping controller; CSP; HMIDC; LFO; mixed 𝐻2/𝐻∞ control; TLS-ESPRIT

• Wydawca: Polish Academy of Sciences, Committee on Electrical Engineering
• Czasopismo: Archives of Electrical Engineering
• Rocznik: 2022
• Tom: Vol. 71, nr 1
• Strony: 109--124
• Opis fizyczny: Bibliogr. 24 poz., rys., tab., wz.

Twórcy

autor

Li Congshan

• School of Electrical and Information Engineering, Zhengzhou University of Light Industry China

• https://orcid.org/0000-0003-1321-7519

autor

Liu Yan

• School of Electrical and Information Engineering, Zhengzhou University of Light Industry China

• https://orcid.org/0000-0001-7643-1323

autor

Li Yikai

• School of Electrical and Information Engineering, Zhengzhou University of Light Industry China

• https://orcid.org/0000-0001-6723-2074

autor

He Ping

• School of Electrical and Information Engineering, Zhengzhou University of Light Industry China

• https://orcid.org/0000-0002-1692-5804

autor

Fang Yan

• School of Electrical and Information Engineering, Zhengzhou University of Light Industry China

• https://orcid.org/0000-0002-7787-5783

autor

Sheng Tingyu

• School of Electrical and Information Engineering, Zhengzhou University of Light Industry China

• https://orcid.org/0000-0001-8470-5208

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).