wind-and-solar-hybris-system-PPT

大型风电场接入电网的稳定性问题研究,希望对大家有点启发( the problems of Large wind farms connected to the grid stability)

在matlab仿真环境下搭建的T型三电平SVPWM控制的仿真模型以及电压环控制(Simulation Model T-type three-level SVPWM control in matlab simulation environment to build and the voltage control loop)

说明：  simulink搭建的全桥整流+buck电路，实现AC到DC，然后DC到DC的变换，其中全桥为SPWM控制。(Simulink built a full bridge rectifier +buck circuit, AC to DC, and then DC to DC transform, in which the whole bridge is SPWM control.)

跟prony算法一样，ESPRIT（Estimation of Signal Parameters Via Rotational Invariance Techniques）也是一种参数法，它是一种基于旋转不变技术参数估计的信号处理方法，此方法可以高精度地辨识电力系统中任意组合的衰减/非衰减正弦信号的频率，相位及其幅值等信息。它不需要对信号进行同步采样。此方法把信号空间分解为信号子空间和噪声子空间，能够在较短的信号长度内准确的检测出信号中各个谐波和间谐波成分。(ESPRIT)

已知压气机的状态参数可求解出该状态下的特性线(if the state of compressor had been knowed,the code is used to calculate the charcter line)

说明：  绿山速度模型的grd格式转换成txt格式，可实现层位追踪和网格重新划分(Green Mountain velocity model of the grd format into txt format, can be realized horizon tracing and re-division of the grid)

电力系统仿真建模需要的模型，可以适合智能电网，分布式发电(power system modeling control smart grid stability)

异步电机进行磁场定向控制，d-q轴解耦，间接磁场定向(FOC in asychronous motor)

热力系统中将水力模型与热力模型同时考虑，使用牛顿拉夫逊算法进行分解求解。(Hydraulic model and thermal model are considered simultaneously in the thermal system, and Newton Raphson algorithm is used to solve them.)

配电网潮流计算，以IEEE33节点为例,运用前退回代法计算(Power flow calculation, in order to IEEE33 nodes, for example, the use of return on behalf of the former method)