NDLI: Extinction angle predictive control strategy for commutation failure mitigation in HVDC systems considering voltage distortion

Content Provider	IET Digital Library
Author	Liu, Lei Lin, Sheng Liao, Kai Sun, Peiyao Deng, Yujia Li, Xiaopeng He, Zhengyou
Abstract	In this study, an extinction angle predictive (EAP) control strategy is proposed to mitigate commutation failure (CF) in high voltage direct current (HVDC) systems. The proposed strategy works effectively during both AC system faults and commutation voltage distortions. At first, an index is put forward to evaluate the prospective commutation area drop and quantify the upcoming commutation stress considering the commutation mechanism. Then, the extinction angle is predicted based on the detected commutation area drop incident. Further, the predicted extinction angle is introduced into the HVDC inverter control to design the EAP control strategy, ensuring that the CF can be prevented due to a sufficient commutation margin. The advantage of the proposed strategy is that it evaluates the upcoming commutation stress based on the transient commutation voltage waveform. Thus, a better sensitivity for commutation voltage distortion can be ensured. The proposed strategy is simulated in the PSCAD/EMTDC platform and the results are compared with that of the conventional schemes, verifying the performance of the proposed strategy in mitigating the CF during AC faults and voltage distortion.
Starting Page	5171
Ending Page	5179
Page Count	9
ISSN	17518687
Volume Number	13
e-ISSN	17518695
Issue Number	Issue 22, Nov (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/13/22
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2019.0619
Journal	IET Generation, Transmission & Distribution
Publisher Date	2019-10-09
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	AC System Fault Commutation Commutation Failure Mitigation Commutation Mechanism Commutation Voltage Distortion Control of Electric Power System D.C. Transmission Detected Commutation Area Drop Incident EAP Control Strategy Extinction Angle Predictive Control Strategy Fault Diagnosis High Voltage Direct Current System HVDC Inverter Control HVDC Power Converter HVDC Power Transmission HVDC System Invertors Optimal Control Power Converter Power Supplies to Apparatus Power Transmission Fault Predicted Extinction Angle Predictive Control Prospective Commutation Area Drop Sufficient Commutation Margin Transient Commutation Voltage Waveform Upcoming Commutation Stress
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
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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