讨论一种基于叠加原理和自动微分(automatic differentiation,AD)技术的考虑高压直流输电(high voltage direct current,HVDC)系统的内点法最优潮流算法。该方法主要特点为:采用节点功率注入方法对HVDC建模;利用叠加原理处理HVDC使之集...讨论一种基于叠加原理和自动微分(automatic differentiation,AD)技术的考虑高压直流输电(high voltage direct current,HVDC)系统的内点法最优潮流算法。该方法主要特点为:采用节点功率注入方法对HVDC建模;利用叠加原理处理HVDC使之集成到内点法最优潮流中;使用自动微分技术高效计算直流输电系统对内点法中雅可比矩阵和海森矩阵的修正矩阵。该算法只需要对传统内点法最优潮流程序做少量改动即可实现对新设备的支持,提高了程序的可维护性和通用性。多组算例测试与分析表明,该算法保持了传统内点法最优潮流程序的高效性,并可拓展到柔性交流输电设备和其他用户自定义模型。展开更多
In regard to such challenging analysis problems as scientific identification and quality evaluation of Chinese traditional medicine, the electrochemical fingerprint technique of Chinese traditional medi- cine has been...In regard to such challenging analysis problems as scientific identification and quality evaluation of Chinese traditional medicine, the electrochemical fingerprint technique of Chinese traditional medi- cine has been researched. The principle, traits, functions, etc., of the electrochemical fingerprint have detailedly been analyzed and discussed by the B-Z oscillatory system using malonic acid as main dissipation substance, characterized by the fact that different influences of different Chinese traditional medicines on the mechanism of the oscillatory reaction cause different changes of the shape of the potential-time curve of the oscillatory system under the conditions of constant tem- perature and pressure. An economical, simple and convenient, easy pushing and effective scientific method for distinguishing and evaluating multifarious Chinese traditional medicines has success- fully been put forward.展开更多
文摘讨论一种基于叠加原理和自动微分(automatic differentiation,AD)技术的考虑高压直流输电(high voltage direct current,HVDC)系统的内点法最优潮流算法。该方法主要特点为:采用节点功率注入方法对HVDC建模;利用叠加原理处理HVDC使之集成到内点法最优潮流中;使用自动微分技术高效计算直流输电系统对内点法中雅可比矩阵和海森矩阵的修正矩阵。该算法只需要对传统内点法最优潮流程序做少量改动即可实现对新设备的支持,提高了程序的可维护性和通用性。多组算例测试与分析表明,该算法保持了传统内点法最优潮流程序的高效性,并可拓展到柔性交流输电设备和其他用户自定义模型。
基金Supported by the National Natural Science Foundation of China (Grant Nos. 20175036 and 20235020)
文摘In regard to such challenging analysis problems as scientific identification and quality evaluation of Chinese traditional medicine, the electrochemical fingerprint technique of Chinese traditional medi- cine has been researched. The principle, traits, functions, etc., of the electrochemical fingerprint have detailedly been analyzed and discussed by the B-Z oscillatory system using malonic acid as main dissipation substance, characterized by the fact that different influences of different Chinese traditional medicines on the mechanism of the oscillatory reaction cause different changes of the shape of the potential-time curve of the oscillatory system under the conditions of constant tem- perature and pressure. An economical, simple and convenient, easy pushing and effective scientific method for distinguishing and evaluating multifarious Chinese traditional medicines has success- fully been put forward.
