Junction Temperature Optimization Based Compensation Strategy of Modular Multilevel Railway Power Conditioner

被引：12
作者：
Ding, Hongqi [1 ]
Ma, Fujun [1 ]
Han, Rong [1 ]
Wang, Lei [1 ]
Lin, Liheng [1 ]
Xu, Qianming [1 ]
机构：
[1] Hunan Univ, Coll Elect & Informat Engn, Changsha 410082, Peoples R China
来源：
IEEE TRANSACTIONS ON POWER ELECTRONICS | 2022年 / 37卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Junctions; Modulation; Reactive power; Power quality; Temperature control; Temperature; Switching loss; Active thermal control (ATC); incomplete compensation; railway power conditioner; HIGH-SPEED RAILWAY; MODEL-PREDICTIVE CONTROL; THERMAL-STRESS; RELIABILITY; TRANSFORMER; IMPROVEMENT; CONVERTERS; DESIGN;
D O I：
10.1109/TPEL.2021.3139702
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The modular multilevel railway power conditioner (MM-RPC) can effectively improve the power quality of the railway power grid. However, since the operating conditions of MM-RPC frequently vary with the traction load, the junction temperatures of semiconductor devices fluctuate very drastically. Severe junction temperature swings can easily affect the service lifetime and reliability of the MM-RPC. In this article, a power hysteresis based on incomplete compensation control strategy is proposed. The proposed control can effectively reduce junction temperature fluctuations under complex mission profiles and increase the overall life of the system while meeting the power quality requirements. Furthermore, the effectiveness of the proposed control is verified in MATLAB/PLECS electrothermal cosimulation under a section of the load curve of the Beijing-Shanghai high-speed railway traction substation. Finally, the experimental thermal platform is built to validate the effectiveness of the proposed control strategy.
引用
收藏
页码：6585 / 6598
页数：14
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