1) dorsal organ
背器
2) appendix dorsalis
背附器
3) back-to-back PWM converter
背靠背PWM变流器
4) back-to-back converter
背靠背变流器
1.
To research control characteristics of permanent magnet synchronous generator(PMSG) for direct-driven variable-speed constant-frequency(VSCF) wind energy conversion system(WECS),the principle of back-to-back converters was discussed,then the work principles of encoder and sensorless control were analyzed.
为了研究直驱型变速恒频风电系统永磁同步发电机(PMSG)的控制特性,在分析背靠背变流器工作原理的基础上,详细讨论了有无速度传感器控制的工作原理,有传感器控制采用高精度增量式编码器,无传感器控制采用基于锁相环的控制策略对PMSG的转速和相位进行观测。
2.
Based on analysis to the principle of back-to-back converter for direct-driven variable speed constout frequency(VSCF) WECS,phase lock loop(PLL) based sensorless control strategy was adopted to determine the speed and phase angle of PMSG,and its work principle and realization method are analyzed in detail.
在分析直驱型变速恒频风电系统背靠背变流器工作原理的基础上,采用锁相环无速度传感器控制策略对永磁同步发电机的速度和相位进行观测,对其工作原理和实现方法进行了分析。
5) sensor vest
传感器背心
6) back groove connector
背槽连接器
1.
Seismic simulation testing results show the testing ceramic curtain wall is safety,and the back groove connector can satisfy the requests of earthquake resistant design under strong earthquake.
本文介绍了背槽式陶瓷幕墙抗震性能的振动台模拟地震试验情况,试验结果表明:在强震作用下,试验幕墙完好无损,背槽连接器性能满足抗震设计要求。
补充资料：背对背
背靠背。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条