郭文光,李德胜,叶乐志,张凯,门爽.能动型电磁液冷缓速器设计与试验[J].农业机械学报,2018,49(10):396-402.
GUO Wenguang,LI Desheng,YE Lezhi,ZHANG Kai,MEN Shuan.Design of Active Electromagnetic Liquid-cooled Retarder for Heavy Vehicles[J].Transactions of the Chinese Society for Agricultural Machinery,2018,49(10):396-402.
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能动型电磁液冷缓速器设计与试验   [下载全文]
Design of Active Electromagnetic Liquid-cooled Retarder for Heavy Vehicles   [Download Pdf][in English]
投稿时间:2018-04-11  
DOI:10.6041/j.issn.1000-1298.2018.10.046
中文关键词:  电涡流  能量回收  数值模拟  制动性能
基金项目:国家自然科学基金项目(51777003、51741701)和北京市自然科学基金项目(3182007)
作者单位
郭文光 北京工业大学 
李德胜 北京工业大学 
叶乐志 北京工业大学 
张凯 北京工业大学 
门爽 北京工业大学 
中文摘要:针对电涡流缓速器耗电量大和制动力矩热衰退严重的问题,基于涡流制动与电机再生制动原理,提出一种将液冷式电涡流缓速器与单相外转子磁阻电机结构相结合的新型能动型缓速器。建立了能动型缓速器的电磁场数学模型,数值模拟预测了其制动性能,优化了电机的开通、关断角,计算了下坡持续制动时电机能量回收时的功率,最后对该缓速器的空损力矩、制动力矩热衰退、发电性能和电动性能进行了台架试验,试验结果表明,在1000r/min时涡流制动力矩达到1260N·m,持续制动12min,制动力矩仅下降15%,可满足重型货车的辅助制动需求;电机再生制动力矩随着转速的增大呈先增大后减小的趋势,在1000r/min时制动力矩达到最大;当车辆以35km/h的速度下坡制动时,能量回收功率可达到94kW。
GUO Wenguang  LI Desheng  YE Lezhi  ZHANG Kai  MEN Shuan
Beijing University of Technology,Beijing University of Technology,Beijing University of Technology,Beijing University of Technology and Beijing University of Technology
Key Words:eddy current  energy recovery  numerical simulation  braking performance
Abstract:To solve high power consumption and problem of braking torque heat-fade of the conventional eddy current brake, a new active electromagnetic liquid-cooled retarder was proposed based on the principle of eddy current brake and motor energy regeneration brake. The new type of retarder included a liquid cooled eddy current retarder and a single-phase switched reluctance motor with an outer rotor. The mathematical model of electromagnetic field for the retarder was established. The braking performance of the retarder was predicted by numerical simulation, the opening and closing angle of the switched reluctance motor were optimized, and the energy recovery power of the the switched reluctance motor in the downhill continuous braking, the energy recovered in the emergency braking and start torque at low speed were calculated. At last, tests for the air loss moment, heat-fade of braking toque, power generation performance and power-driven performance were carried out. The test results showed that the eddy current braking torque reached 1260N·m at 1000r/min. The braking torque was declined by 15% in the continuous braking stage. The braking torque of the motor was increased at first and then decreased with the increase of speed. When the speed was 1000r/min, the braking torque of the motor reached the maximum;when the vehicle was slowed down at speed of 35km/h, the recovery power was up to 94kW.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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