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500kW飞轮储能电源系统设计与实验研究 被引量:11
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作者 戴兴建 张超平 +2 位作者 王善铭 姜新建 李胜忠 《电源技术》 CAS CSCD 北大核心 2014年第6期1123-1126,共4页
为满足钻机动力系统调峰运行要求,研制了一套电动功率110kW、发电功率300—500kW、储能4500Wh的飞轮储能电源系统。该系统采用合金钢高速飞轮储能、永磁同步电机实现电能充放,采用DSP控制功率器件实现电机的变频调速和发电整流。用有... 为满足钻机动力系统调峰运行要求,研制了一套电动功率110kW、发电功率300—500kW、储能4500Wh的飞轮储能电源系统。该系统采用合金钢高速飞轮储能、永磁同步电机实现电能充放,采用DSP控制功率器件实现电机的变频调速和发电整流。用有限元分析方法求解高速飞轮、永磁体嵌入式电机转子的强度问题。飞轮电机轴系采用永磁轴承与滚动轴承混合立式支承方式,本机动平衡后,系统平稳运行到额定转速3600r/min。飞轮储能电源系统在1800~3600~1800r/min区间充电放电循环效率为86%。 展开更多
关键词 飞轮储能 永磁同步电机 动力调峰
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The Influence of Modulated Slotted Synthetic Jet on the Bypass of Hump
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作者 Petr Pick Miroslav Andrle Vladislav Saila Milan Matej ka 《Journal of Mechanics Engineering and Automation》 2014年第3期225-233,共9页
This paper deals with the influence of phase modulated synthetic jet on the aerodynamics of the hump in a closed test section Of the Eiffel-type wind tunnel. Three experimental methods of measurement techniques of thi... This paper deals with the influence of phase modulated synthetic jet on the aerodynamics of the hump in a closed test section Of the Eiffel-type wind tunnel. Three experimental methods of measurement techniques of this phenomenon were used: the pressure profile using the Kiel total pressure probe, the velocity profile using the CTA (constant temperature anemometry) probe and the visualization of the flow field using the hot film and the thermo camera, The experimental results with and without the influence of the synthetic jet were compared, as well the impact of the phase shift of the neighbouring synthetic jets. As a reference case, the flow around the hump without the influence of the synthetic jet was selected. The results of the measurement are presented in figures and compared. 展开更多
关键词 Synthetic jet Kiel probe CTA probe loss coefficient phase shift modulation.
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