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关于新能源技术的863项目，智能电网的新发展方向(About 863 items of new energy technologies)

说明：  热电联供系统多能流建模，采用扩展牛顿—拉夫逊算法统一求解的方法进行计算。(The multi-energy flow model of cogeneration system is modeled and calculated by the unified method of extended Newton-Raphson algorithm.)

永磁风电，svpwm，不含桨距角控制，记得先打开坐标库。(PMSG. SVPWM. No pitch control. Do remember open the vector library first.)

电流型两电平整流器simlink仿真，空间矢量调制，双闭环(SIMLINK simulation of current-source two-level converter)

以IEEE33节点为例，考虑到配电网多为辐射性结构，选用前推回代法， 前推功率，回代电压，该算法通用性强(Taking the IEEE33 node as an example, considering that the distribution network is mostly radiative structure, the forward and backward substitution method is adopted, and the power is pushed forward and the voltage is replaced. This algorithm is universal.)

simulink下考虑尾流效应包含9台双馈风机的风电场等值模型(An equivalent model of wind farm with 9 DFIGs Considering wake effect in simulink)

内点法计算14节点系统最优潮流，目标函数为燃料费用最小(Optimal power flow of a 14-node system by using interior point method)

仿真模型中，通过1000MW(5OOkv, 2kA)的直流输电线路从一个500KV、5000mva、50hz的电力系统EM向另一个345kv10000mva50hz的电力系统Ell输送电力。整流桥和逆变桥均由两个通用6脉冲桥搭建而成。交流滤波器直接接在交流母线上，它包括11次、13次和更高次谐波等单调支路。总共提供600mvar的容量。(In the simulation model, the 1000MW (5OOkv, 2kA) DC transmission line transfers power from one 500KV, 5000MVA, 50Hz power system EM to another 345kv10000mva50hz power system Ell. The rectifier bridge and the invert bridge are all constructed by two general 6 pulse bridges. The AC filter is connected directly to the AC bus, which includes 11 or 13 and higher harmonics. A total capacity of 600mvar is provided.)

轴系扭转振动的matlab计算,将采集的脉冲信号转化成扭转角。(torsional vibration)

实现了虚拟同步机的频率控制，可以完美运行(The frequency modulation of a virtual synchronizer is realized)