Power Loss Evaluation Method for Modular Multi-Level Converter with High-Frequency
Journal Title: International Journal of Trend in Scientific Research and Development - Year 2017, Vol 2, Issue 1
Abstract
There is no common accepted way for calculating the valve power loss of modular multilevel converter (MMC). Valve power loss estimation based on analytical calculation is inaccurate to address the switching power loss and valve power loss estimation based on detailed electro-magnetic simulation is of low speed. To solve this problem, a method of valve power loss estimation based on the detailed equivalent simulation model of MMC is proposed. Results of valve power loss analysis of 201-level 500MW MMC operating at 50Hz~1000Hz are presented. It is seen that the valve power loss of a MMC increased by 12, 40 and 93 % under 200Hz, 500Hz and 1000Hz operating frequency. The article concludes that in a device with isolated inner AC system, MMC operating at higher frequency will be more competitive than typical 50Hz/60Hz MMC with moderate increase of operating power loss and significant reduction of the size of the AC components. Gangadhara Swamy | Molugu Shruthi"Power Loss Evaluation Method for Modular Multi-Level Converter with High-Frequency" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-1 , December 2017, URL: http://www.ijtsrd.com/papers/ijtsrd7027.pdf http://www.ijtsrd.com/engineering/electrical-engineering/7027/power-loss-evaluation-method-for-modular-multi-level-converter-with-high-frequency/gangadhara-swamy
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