Adaptive control is one of the current methods in modem control theory. In this letter, an AI adaptive control method is developed, which can, with a simple microcomputer as the hardware foundation, effectively and su...Adaptive control is one of the current methods in modem control theory. In this letter, an AI adaptive control method is developed, which can, with a simple microcomputer as the hardware foundation, effectively and successfully realize a high quality control,展开更多
数字物理混合仿真已成为模块化多电平换流器柔性直流输电技术(modular multilevel converter based high voltage direct current,MMC-HVDC)的重要研究手段,而接口算法是保证其系统稳定性和仿真精确性的关键技术。基于理想变压器模型法...数字物理混合仿真已成为模块化多电平换流器柔性直流输电技术(modular multilevel converter based high voltage direct current,MMC-HVDC)的重要研究手段,而接口算法是保证其系统稳定性和仿真精确性的关键技术。基于理想变压器模型法与阻尼阻抗法接口特性的对比分析,提出了一种基于自适应模式切换的新型接口算法,可在保证MMC-HVDC数字物理混合仿真系统稳定性的同时提高仿真精度。针对阻尼阻抗法,提出了物理动模交流场等效阻抗的精确计算方法,并简化了MMC交流侧等效阻抗的计算过程,实现了阻抗的实时匹配;根据2种接口算法的结构原理,在阻尼阻抗法的附加阻抗支路增加了一个可控开关,并以理想变压器模型法接口稳定性为依据设计了开关的动作条件及其误动的解决方案,进而设计新型接口算法的实现流程,保证接口特性的有效切换。通过数字仿真对比分析了新型接口算法与常用接口算法的接口特性,验证了其优越的稳定性和精确性。最后,设计了适用于MMC-HVDC数字物理混合仿真平台的启动方案,并通过硬件在环实验验证了所提方法的有效性和可行性。展开更多
To solve the troubles in quality testing and fault diagnosis for producing and maintaining of thedigital SPC (stored program control) switching system, in view of type CIPT-2000 SPC product, manufac-tured by CY colleg...To solve the troubles in quality testing and fault diagnosis for producing and maintaining of thedigital SPC (stored program control) switching system, in view of type CIPT-2000 SPC product, manufac-tured by CY college, the fault diaguosis algorithm and method of the simulated SLC (subscriber line circuit)for the SPC researched by ourselves are presented: hardware and software structure for the test system aredesigned and impleinented by C and assembly programs. Through practice it shows that the system is reli-able, and the method is practical. Efficiency ofproducing and maintaining on the printed circuits of SLC isgreatly raised.展开更多
文摘Adaptive control is one of the current methods in modem control theory. In this letter, an AI adaptive control method is developed, which can, with a simple microcomputer as the hardware foundation, effectively and successfully realize a high quality control,
文摘数字物理混合仿真已成为模块化多电平换流器柔性直流输电技术(modular multilevel converter based high voltage direct current,MMC-HVDC)的重要研究手段,而接口算法是保证其系统稳定性和仿真精确性的关键技术。基于理想变压器模型法与阻尼阻抗法接口特性的对比分析,提出了一种基于自适应模式切换的新型接口算法,可在保证MMC-HVDC数字物理混合仿真系统稳定性的同时提高仿真精度。针对阻尼阻抗法,提出了物理动模交流场等效阻抗的精确计算方法,并简化了MMC交流侧等效阻抗的计算过程,实现了阻抗的实时匹配;根据2种接口算法的结构原理,在阻尼阻抗法的附加阻抗支路增加了一个可控开关,并以理想变压器模型法接口稳定性为依据设计了开关的动作条件及其误动的解决方案,进而设计新型接口算法的实现流程,保证接口特性的有效切换。通过数字仿真对比分析了新型接口算法与常用接口算法的接口特性,验证了其优越的稳定性和精确性。最后,设计了适用于MMC-HVDC数字物理混合仿真平台的启动方案,并通过硬件在环实验验证了所提方法的有效性和可行性。
文摘To solve the troubles in quality testing and fault diagnosis for producing and maintaining of thedigital SPC (stored program control) switching system, in view of type CIPT-2000 SPC product, manufac-tured by CY college, the fault diaguosis algorithm and method of the simulated SLC (subscriber line circuit)for the SPC researched by ourselves are presented: hardware and software structure for the test system aredesigned and impleinented by C and assembly programs. Through practice it shows that the system is reli-able, and the method is practical. Efficiency ofproducing and maintaining on the printed circuits of SLC isgreatly raised.
