随着工业化日渐发展,汽轮发电机在越来越多的领域得到了有效应用,并发挥了重要作用。随着市场上对汽轮发电机的依赖性增大,传统的控制技术已无法满足现有设备的需求。为提高汽轮发电机运行的可靠性,汽轮机数字电液控制系统(Digital Elec...随着工业化日渐发展,汽轮发电机在越来越多的领域得到了有效应用,并发挥了重要作用。随着市场上对汽轮发电机的依赖性增大,传统的控制技术已无法满足现有设备的需求。为提高汽轮发电机运行的可靠性,汽轮机数字电液控制系统(Digital Electric Hydraulic control system,DEH)电调自动控制技术应运而生。基于此,详细分析在汽轮发电机中的DEH电调自动控制技术,突破传统的技术限制,为汽轮发电机提供现代化控制技术的理论基础。展开更多
As for the application of electronic fuel injection （EFI） system to small gasoline generator set, mechanical speed controller cannot be coupled with EFI system and has the shortcomings of lagged regulation and poor ...As for the application of electronic fuel injection （EFI） system to small gasoline generator set, mechanical speed controller cannot be coupled with EFI system and has the shortcomings of lagged regulation and poor accuracy, a feed-forward control strategy based on load combined with proportional-integral-differential （PID） control strategy was proposed, and a digital speed controller applied to the electrical control system was designed. The detailed control strategy of the controller was intro- duced. The hardware design for the controller and the key circuits of motor driving, current sampling and angular signal captu- ring were given, and software architecture was discussed. Combined with a gasoline generator set mounted with EFI system, the controller parameters were tuned and optimized empirically by hardware in loop and bench test methods. Test results show that the speed deviation of generator set is low and the control system is stable in steady state; In transient state the control system responses quickly, has high stability under mutation loads especially when suddenly apply and remove 100% load, the speed deviation is within 8% of reference speed and the transient time is less than 5 s, satisfying the ISO standard.展开更多
文摘随着工业化日渐发展,汽轮发电机在越来越多的领域得到了有效应用,并发挥了重要作用。随着市场上对汽轮发电机的依赖性增大,传统的控制技术已无法满足现有设备的需求。为提高汽轮发电机运行的可靠性,汽轮机数字电液控制系统(Digital Electric Hydraulic control system,DEH)电调自动控制技术应运而生。基于此,详细分析在汽轮发电机中的DEH电调自动控制技术,突破传统的技术限制,为汽轮发电机提供现代化控制技术的理论基础。
文摘As for the application of electronic fuel injection （EFI） system to small gasoline generator set, mechanical speed controller cannot be coupled with EFI system and has the shortcomings of lagged regulation and poor accuracy, a feed-forward control strategy based on load combined with proportional-integral-differential （PID） control strategy was proposed, and a digital speed controller applied to the electrical control system was designed. The detailed control strategy of the controller was intro- duced. The hardware design for the controller and the key circuits of motor driving, current sampling and angular signal captu- ring were given, and software architecture was discussed. Combined with a gasoline generator set mounted with EFI system, the controller parameters were tuned and optimized empirically by hardware in loop and bench test methods. Test results show that the speed deviation of generator set is low and the control system is stable in steady state; In transient state the control system responses quickly, has high stability under mutation loads especially when suddenly apply and remove 100% load, the speed deviation is within 8% of reference speed and the transient time is less than 5 s, satisfying the ISO standard.
