Study on Key Technologies of a 1650 kV/4 A Power Frequency Test System Based on a Three-Stage Series Structure

Study on Key Technologies of a 1650 kV/4 A Power Frequency Test System Based on a Three-Stage Series Structure | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL IET Generation, Transmission & Distribution This is a preprint and has not been peer reviewed. Data may be preliminary. 12 May 2026 V1 Latest version Share on Study on Key Technologies of a 1650 kV/4 A Power Frequency Test System Based on a Three-Stage Series Structure Authors : Zhiling Kang [email protected] , Zuoyu Chen 0009-0002-0210-1051 [email protected] [email protected] , Jianzhen An [email protected] , Shuqi Ling [email protected] , Shengze Yang [email protected] , and Xuhang An [email protected] Authors Info & Affiliations https://doi.org/10.22541/authorea.15003233/v1 9 views 3 downloads Contents Abstract Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract To meet the requirements of ultra-high voltage (UHV) equipment power-frequency insulation tests for high voltage, large capacity, and superior waveform quality, this study presents a 1650 kV/4 A power-frequency test system based on a three-stage series structure. Firstly, from the perspective of multi-stage series systems, the inter-stage voltage distribution and capacity transfer mechanism were analyzed, and a voltage allocation method considering stray capacitances was proposed. Secondly, based on the system impedance matching principle, the harmonic suppression mechanism was investigated to optimize the output voltage waveform. Finally, a MATLAB/Simulink simulation model was established, and experimental validation was conducted. Results show that under rated conditions, the system output voltage error is below 0.1%, and the total harmonic distortion is 1.68%, exceeding relevant standard requirements. At the rated voltage of 1650 kV, the partial discharge level is less than 5 pC, meeting the insulation test requirements of UHV equipment. Compared with conventional series-resonant test systems, the proposed scheme demonstrates advantages in frequency consistency, waveform quality, and system stability. The findings provide a technical reference for the design and engineering application of UHV power-frequency insulation test systems. Information & Authors Information Version history V1 Version 1 12 May 2026 Collection IET Generation, Transmission & Distribution Keywords wind power circuit stability circuit theory electric machine analysis computing high-voltage techniques power distribution power grids power system analysis computing power system dynamic stability power system economics power system control power system measurement power system planning power system protection power systems power transformers power transformer testing electric breakdown power transmission lines lightning high-voltage techniques test facilities transformers insulation testing partial discharges harmonic analysis AC-AC power convertors AC-DC power convertors wind power circuit stability circuit theory electric machine analysis computing high-voltage techniques power transformers power transformer testing electric breakdown power transmission lines lightning power distribution power grids power system analysis computing power system dynamic stability power system economics power system control power system measurement power system planning power system protection power systems Authors Affiliations Zhiling Kang [email protected] Tianshui Normal University, Tianshui, China View all articles by this author Zuoyu Chen 0009-0002-0210-1051 [email protected] [email protected] Tianshui Normal University, Tianshui, China View all articles by this author Jianzhen An [email protected] Tianshui Normal University, Tianshui, China View all articles by this author Shuqi Ling [email protected] Tianshui Normal University, Tianshui, China View all articles by this author Shengze Yang [email protected] Tianshui Normal University, Tianshui, China View all articles by this author Xuhang An [email protected] Tianshui Normal University, Tianshui, China View all articles by this author Metrics & Citations Metrics Article Usage 9 views 3 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Zhiling Kang, Zuoyu Chen, Jianzhen An, et al. Study on Key Technologies of a 1650 kV/4 A Power Frequency Test System Based on a Three-Stage Series Structure. Authorea . 12 May 2026. DOI: https://doi.org/10.22541/authorea.15003233/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download. For more information or tips please see 'Downloading to a citation manager' in the Help menu . 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