The realization of full-bridge inverter controller for resonant high-power electromagnetic thermal energy storage system

被引:1
|
作者
Yin, Xiaoju [1 ]
Lu, Shiyu [1 ]
Liu, Yefeng [2 ]
Wang, Yuxin [3 ]
Zhou, Baohui [1 ]
Wang, Shengkai [1 ]
机构
[1] Shenyang Inst Engn, Sch New Energy, Shenyang 110136, Peoples R China
[2] Shenyang Inst Technol, Sch Mech Engn & Automat, Fushun 113122, Liaoning, Peoples R China
[3] Tianjin Agr Univ, Coll Comp & Informat Engn, Tanjing 300384, Peoples R China
关键词
Electromagnetic thermal energy storage; A complex resonance circuit; Full-bridge inverter circuit; The thermal conversion efficiency;
D O I
10.1016/j.egyr.2022.05.087
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
According to the characteristics of electromagnetic thermal energy storage, the full-bridge inverter and resonant circuit with simple structure, high voltage utilization and high output power are used in this paper. By establishing and simplifying the electromagnetic thermal conversion circuit model of composite resonance, the control characteristics of resonant circuit are analyzed. Through the maximum thermal efficiency tracking control of constant power, the constant power frequency conversion control of full-bridge inverter thermal conversion is realized based on voltage, current, temperature rise and time, so as to reduce the impact on the power grid and achieve better waveform output. In view of the phenomenon that the constant power control of high-power thermal energy storage equipment may be out of control, the load multi-signal detection closed-loop control is added. The mathematical model of electromagnetic thermal conversion coupling system is established, and the relationship between electromagnetic thermal conversion and temperature coefficient, impedance is derived. By selecting the appropriate resonant capacitor capacity, the thermal conversion efficiency of the system is effectively improved. Finally, the resonant circuit is simulated by Matlab/ Simulink and the 100 kW thermal energy storage prototype experiment is carried out. The effectiveness and practicability of the method are verified, and the better output waveform is obtained. (C) 2022 The Author(s). Published by Elsevier Ltd.
引用
收藏
页码:347 / 355
页数:9
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