交流–电网换相换流器型高压直流输电(AC-line commutated converter high voltage direct current,AC-(LCC)DC)混联系统的电磁暂态初始化在计算模型上可表述为一个扰动的可分无源动力系统。因此,将无源动力系统的显式保积算法应用于电...交流–电网换相换流器型高压直流输电(AC-line commutated converter high voltage direct current,AC-(LCC)DC)混联系统的电磁暂态初始化在计算模型上可表述为一个扰动的可分无源动力系统。因此,将无源动力系统的显式保积算法应用于电磁暂态初始化计算。采用相空间分析方法,对基于逐次积分法的电磁暂态初始化方法的收敛条件以及收敛速率进行了定量分析。在上述基础上,提出了一类新的、系统化的初始化计算方法,该方法计算格式简单、易于编程,在计算效率上具有明显的优势。算例结果验证了所提方法的有效性。展开更多
A new algorithm called the weighted least square discrete parameterization (WLSDP) is presented for the parameterization of triangular meshes over a convex planar region. This atgorithm is the linear combination of th...A new algorithm called the weighted least square discrete parameterization (WLSDP) is presented for the parameterization of triangular meshes over a convex planar region. This atgorithm is the linear combination of the discrete Conformal mapping (DCM) and the discrete Authalic mapping (DAM). It provides the good properties of both DCM and DAM, such as robustness and low distortion. By adjusting the scaling factor q embedded in the WLSDP, satisfactory parameterizations in different special applications can be achieved.展开更多
文摘交流–电网换相换流器型高压直流输电(AC-line commutated converter high voltage direct current,AC-(LCC)DC)混联系统的电磁暂态初始化在计算模型上可表述为一个扰动的可分无源动力系统。因此,将无源动力系统的显式保积算法应用于电磁暂态初始化计算。采用相空间分析方法,对基于逐次积分法的电磁暂态初始化方法的收敛条件以及收敛速率进行了定量分析。在上述基础上,提出了一类新的、系统化的初始化计算方法,该方法计算格式简单、易于编程,在计算效率上具有明显的优势。算例结果验证了所提方法的有效性。
文摘A new algorithm called the weighted least square discrete parameterization (WLSDP) is presented for the parameterization of triangular meshes over a convex planar region. This atgorithm is the linear combination of the discrete Conformal mapping (DCM) and the discrete Authalic mapping (DAM). It provides the good properties of both DCM and DAM, such as robustness and low distortion. By adjusting the scaling factor q embedded in the WLSDP, satisfactory parameterizations in different special applications can be achieved.
