小电流接地系统故障

说明：  基于瞬时无功功率理论、滞环电流控制的三相电力有源滤波器Matlab仿真模型(The model of APF is established by the Power System of Matlab.The calculation of harmonic current based on three-phase instantaneous reactive power theory and hysteresis current tracking control strategy are analyzed.)

运用加权最小二乘法进行电力系统状态估计 具有较好的收敛性 但适合于较小的系统(Using weighted least squares state estimation of power system has a good convergence, but for smaller systems)

充电桩通信规约代码，根据国标进行编写，使用国内大部分电动充电车。(Charging pile communication protocol code, compiled according to national standards, using most domestic electric charging vehicles.)

可以在空间中自由生成想要的纤维，方便灵活，无拘无束(The fibers can be maken in a space randomly.)

可实现ieee30节点编号的优化，以及利用稀疏技术存储(It can optimize IEEE 30 node number and store it with sparse technology)

第一类高阻抗含气砂岩AVO正演（自激自收）(The first class of high-impedance gas sands AVO forward)

同步压缩曲波变换，可用于处理地震数据，对数据进行去噪等(Seismic Data Processing by Synchronized Compressed Curved Wave Transform)

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.)

异步电机速度、电流、磁链闭环控制，电流控制采取滞环控制，动态跟踪效果较好。(The closed-loop control of speed, current and flux of induction motor and hysteresis control of current control have good dynamic tracking effect.)

基于随机邻域搜索的含风电配电网优化规划 本程序提出了含风电配电网中基于半不变量的随机潮流算法，该算法考虑了风电的出力随机性，运用了概率统计方法处理系统运行中的随机变化因素，给出系统运行电压、支路潮流等概率分布情况，可以更深刻地揭示系统运行状况，为系统安全运行决策提供更完整的信息。 随机变量的卷积运算是随机潮流计算量较大的部分，利用半不变量的方法进行随机变量间的卷积运算，并用Gram-Charlier级数展开式计算随机变量的分布[4-6]将使整个随机潮流计算效率很高，其精度也足以满足规划和运行分析的要求。(This code package mainly analyzes the characteristic of smart grid and the influence RES bring to distribution networks. In this paper, evaluation was made for the necessary improvements on intelligentizing transformation from different aspects, such as load forecast, power stationing planning and network planning, which will truly provide theoretical guidance for the planning work of intelligent distribution networks.)