The system uses Japanese Mitsubishi PLC as the main control core,and intermediate relay is used for signal acquisition and conversion.The system is mainly composed of data processing module,municipal electricity monit...The system uses Japanese Mitsubishi PLC as the main control core,and intermediate relay is used for signal acquisition and conversion.The system is mainly composed of data processing module,municipal electricity monitoring module,wireless communication module,remote controller,speech recognition module,display module,sensor,switching output module and UPS power supply. The system can automatically start generator for power supply when municipal electricity is failure; when municipal electricity returns to normal,it automatically restores the power supply function of municipal electricity. In order to improve the stability of the system,the system has the functions of fault alarm,remote reset and remote query,etc.,which can realize seamless switching of municipal electricity and generator. It effectively avoids meteorological data loss,data delay,network interruption,etc. caused by unstable municipal electricity,solves the power supply problem of grass-roots meteorological station,especially at night,provides stable power supply for the integrated meteorological observation,forecasting,and early warning service.展开更多
为提高充电效率,采用模块化设计和智能充电装置,实现快速更换、升级及精确控制充电过程,通过测试和优化,提升系统性能。优化后的系统充电效率提升至95%,电池状态监测精度提高至±0.5%,充电桩利用率增加至90%,并减少了20%的电网负荷...为提高充电效率,采用模块化设计和智能充电装置,实现快速更换、升级及精确控制充电过程,通过测试和优化,提升系统性能。优化后的系统充电效率提升至95%,电池状态监测精度提高至±0.5%,充电桩利用率增加至90%,并减少了20%的电网负荷峰值。模块化开关电源智能管理功能在保护、通信、不间断电源(Uninterruptible Power Supply,UPS)及人机界面等方面表现出色,有效提升系统安全性。文章成功设计并优化了基于多功能模块化开关电源的智能充电系统,提高了充电效率、安全性及灵活性,为电动汽车充电设施的智能化和高效化提供有益参考。展开更多
家用及商用空调智能功率模块(Intelligent Power Module,IPM)-FO功能保护直接决定了驱动电机乃至整个系统的稳定运行,而智能功率模块出现FO保护可能是由于印刷电路板(Printed Circuit Board,PCB)布局不合理、驱动控制器存在的强弱电干...家用及商用空调智能功率模块(Intelligent Power Module,IPM)-FO功能保护直接决定了驱动电机乃至整个系统的稳定运行,而智能功率模块出现FO保护可能是由于印刷电路板(Printed Circuit Board,PCB)布局不合理、驱动控制器存在的强弱电干扰、热地冷地之间的波动、开关电源变压器开关动作干扰、电子膨胀阀动作导致地线扰动影响电机电流采样等诸多因素。因此,驱动板FO出现保护时首先需要从IPM-FO模块保护机理出发,采用试验排除法逐步确认故障点。采用所提试验技术方法逐步排查直至整机正常运行,通过整改前后波形对比,进一步证明采用该方法能有效解决专用智能功率模块出现的FO问题,对空调行业售后技术服务人员有一定的的借签及指导意义。展开更多
基金Supported by Youth Technology Foundation Item of Guizhou Meteorological Bureau in 2015(QN201520)
文摘The system uses Japanese Mitsubishi PLC as the main control core,and intermediate relay is used for signal acquisition and conversion.The system is mainly composed of data processing module,municipal electricity monitoring module,wireless communication module,remote controller,speech recognition module,display module,sensor,switching output module and UPS power supply. The system can automatically start generator for power supply when municipal electricity is failure; when municipal electricity returns to normal,it automatically restores the power supply function of municipal electricity. In order to improve the stability of the system,the system has the functions of fault alarm,remote reset and remote query,etc.,which can realize seamless switching of municipal electricity and generator. It effectively avoids meteorological data loss,data delay,network interruption,etc. caused by unstable municipal electricity,solves the power supply problem of grass-roots meteorological station,especially at night,provides stable power supply for the integrated meteorological observation,forecasting,and early warning service.
文摘为提高充电效率,采用模块化设计和智能充电装置,实现快速更换、升级及精确控制充电过程,通过测试和优化,提升系统性能。优化后的系统充电效率提升至95%,电池状态监测精度提高至±0.5%,充电桩利用率增加至90%,并减少了20%的电网负荷峰值。模块化开关电源智能管理功能在保护、通信、不间断电源(Uninterruptible Power Supply,UPS)及人机界面等方面表现出色,有效提升系统安全性。文章成功设计并优化了基于多功能模块化开关电源的智能充电系统,提高了充电效率、安全性及灵活性,为电动汽车充电设施的智能化和高效化提供有益参考。
文摘家用及商用空调智能功率模块(Intelligent Power Module,IPM)-FO功能保护直接决定了驱动电机乃至整个系统的稳定运行,而智能功率模块出现FO保护可能是由于印刷电路板(Printed Circuit Board,PCB)布局不合理、驱动控制器存在的强弱电干扰、热地冷地之间的波动、开关电源变压器开关动作干扰、电子膨胀阀动作导致地线扰动影响电机电流采样等诸多因素。因此,驱动板FO出现保护时首先需要从IPM-FO模块保护机理出发,采用试验排除法逐步确认故障点。采用所提试验技术方法逐步排查直至整机正常运行,通过整改前后波形对比,进一步证明采用该方法能有效解决专用智能功率模块出现的FO问题,对空调行业售后技术服务人员有一定的的借签及指导意义。
