论文标题
使用差分转换方法对基于DFIG的风能系统的时域模拟
Time Domain Simulation of DFIG-Based Wind Power System using Differential Transform Method
论文作者
论文摘要
本文提出了一种使用差分转换方法（DTM）的新的非文字时间域模拟方法，以求解与基于DFIG的风力发电系统相关的非线性差分差异方程（DAE）。 DTM是用于求解高维非线性动力学系统的分析和数值方法，并且该解决方案可以以系列的形式表示。在这种方法中，无需计算高阶导数，因为在应用转换规则之后，将DAE转换为一组线性方程，以便可以直接计算功率系数系数。转换规则用于转换各种设备的电力系统模型，例如感应发电机，风力涡轮机，转子和网格侧转换器，其中包括三角，平方根，指数函数等，以增加系列解决方案的收敛间隔，多步dtm（MSDTM）方法。将提出方法的数值性能与传统的数值RK-4方法进行了比较，以证明拟议方法在求解功率系统非线性DAE中的潜力
This paper proposes a new non-iterative time-domain simulation approach using Differential Transform Method (DTM) to solve the set of non-linear Differential-Algebraic Equations (DAEs) involved in a DFIG-based wind power system. The DTM is an analytical as well as numerical approach applied to solve high dimensional non-linear dynamical systems and the solution can be expressed in the form of a series. In this approach, there is no need to compute higher-order derivatives as DAEs are converted into a set of linear equations after applying transformation rules so that the power series coefficients can be computed directly. The transformation rules are used to transform power system models of various devices, such as induction generator, wind turbine, rotor and grid side converter, which includes trigonometric, square root, exponential functions etc. Further, to increase the interval of convergence for the series solutions, the multi-step DTM (MsDTM) approach is used. The numerical performance of the proposed approach is compared with the traditional numerical RK-4 method to demonstrate the potential of the proposed approach in solving power system non-linear DAEs
