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sun_DQ
说明： 实现两相并网逆变器的SPWM控制,可利用在光伏并网系统中(Realize SPWM control of two - phase grid-connected inverter)
- 2020-06-27 08:27:55下载
- 积分：1
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kemodel
《Turbulence models and their application》的附录程序，经典K-ε湍流模型的绝佳教材。(《 Turbulence models and their application》 in the appendix procedure, the classical K-ε turbulence model is an excellent teaching materials.)
- 2010-11-11 15:20:53下载
- 积分：1
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c8s1_power_hvdc12pulse
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.)
- 2017-07-16 14:34:46下载
- 积分：1
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网络分析的状态变量法
说明： 对于已知的电路结构，求解其网络分析的状态变量法(For the known circuit structure, the state variable method is used to solve the network analysis)
- 2019-11-18 20:12:21下载
- 积分：1
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VISITAbp
电力变压器是电力系统中的主要设备之一，利用它可以把不同电压的电网联结在一起，组成复杂的电网或庞大的电力系统，并在其中发挥着重要的作用。电力变压器的可靠运行关系到整个电网的安全，如何对电力变压器的运行中的故障进行诊断，已成为电力部门急需解决的问题。目前，以油中溶解气体为特征量对变压器的故障进行分析，得到了广泛应用。
本次设计要求对电力变压器的内部故障进行广泛了解，并应用BP神经网络对变压器进行智能故障诊断软件设计，实现变压器内部故障论断。主要包括以下内容：
1、掌握用以变压器油中气体为特征量，用BP神经网络诊断变压器内部故障的方法
2、用 Visual Basic编制变压器故障诊断软件，具有以下功能：
a) 数据管理功能。包括变压器信息，色谱数据信息等
b) 故障诊断功能。包括用BP神经网络诊断变压器故障的具体实现方法，并给出故障诊断结果
c) 图形显示功能。包括对同一变压器内气体浓度变化曲线的显示等
d) 辅助功能。如帮助信息，诊断方法的介绍等
(Power transformer is one of the main equipment in power system, it can use the network of different voltage linked together, to form a complex network or large electric power system, and plays an important role in it. Power transformer for the reliable operation of the power grid safety, how to run in power transformer fault diagnosis, has become urgent to solve the problem of electric power sector. At present, the DGA in transformer fault analysis, obtained the widespread application.
The design of power transformer internal fault is widely understood, and the application of BP neural network to transformer fault diagnosis software design, realization of transformer internal fault diagnosis. Mainly include the following contents:
1, master for gas in transformer oil as features, using BP neural network diagnosis method of transformer internal fault
In 2, Visual Basic system of transformer fault diagnosis software, has the following functions:
A ) data management function. )
- 2012-05-07 20:40:34下载
- 积分：1
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潮流计算高斯法
说明： 可以对电力系统进行潮流计算，潮流计算所用方法为高斯赛德法。(Power flow calculation of power system using Gauss said method)
- 2020-06-06 12:32:17下载
- 积分：1
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Design-Test
电力系统分布式电源,计算某电力系统中分布式电源合理设计(Power System Distributed Power)
- 2021-03-06 14:39:30下载
- 积分：1
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comfort
根据温度/相对湿度/风速/衣服等计算空调环境下人体热舒适PMV-PPD指标。(According to temperature / relative humidity / wind speed / clothing, the PMV-PPD index of human thermal comfort in air conditioning environment is calculated.)
- 2018-05-28 12:42:19下载
- 积分：1
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dx_derivative
用于计算位场数据的一阶或二阶水平方向导数，一般水平导数用于边界的识别。(The data used to calculate the potential field of a first-order or second-order horizontal directional derivative, the derivative of the general level of identification for border.)
- 2013-01-08 13:43:09下载
- 积分：1
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Load-Prediction
电力系统负荷预测程序，短期预测，考虑天气、人体舒适度等因素。(Power system load forecasting process, short-term forecasting, considering the weather, human comfort and other factors.)
- 2021-04-09 09:29:01下载
- 积分：1
