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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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潮流计算牛顿法
说明： 对电力系统进行交流潮流计算，计算方法为极坐标系下的牛顿拉夫逊法。(The AC power flow of power system is calculated by Newton Raphson method in polar coordinate system.)
- 2020-06-06 12:55:30下载
- 积分：1
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1118-daidiaoyong
用TDMA方法制作的程序，一般用于求解难度较大的换热器问题。(Program produced with the TDMA method, generally used for solving the difficult problem of the heat exchanger.)
- 2020-06-29 12:40:02下载
- 积分：1
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power_system_reactive_power_optimization
优秀论论及对应源码。电力系统配电网的无功优化规划是保证配电网安全、经济运行的一项有效手段，是降低网损、提高电压质量的重要措施。因此，电力系统配电网无功优化规划问题的研究，既具有理论意义，又具有工程实际应用价值。配电系统最优规划问题是一个复杂的非线性组合优化问题，至今未得到很好的解决。Tabu搜索(TS—Tabu search)算法是近年来出现的用于求解组合优化问题的一种高效的启发式搜索技术。本文采用固定并联电容器作为研究对象对系统进行无功补偿，并利用智能优化方法得到使配电网损耗降低最大对应的最优节点解。并在补偿容量的邻域搜索方面做了改进，采用扩大邻域搜索范围以达到全局最优的效果。用IEEE的两个算例得出的计算结果证明了这种方法的可行性。(Excellent deals on the corresponding source code. Power system with reactive power distribution network optimal planning is to ensure the safety, economic operation of an effective means of reducing the net loss, an important measure to improve the voltage quality. Therefore, the power system reactive power optimization of distribution network planning study, not only has theoretical significance, but also has practical engineering value. Optimal distribution system planning is a complicated nonlinear optimization problem, has not been solved. Tabu Search (TS-Tabu search) algorithm is used in recent years for solving combinatorial optimization problems an efficient heuristic search techniques. In this paper, as the research object of fixed shunt capacitors for reactive power compensation system, and using intelligent optimization method to reduce the loss of the largest distribution network node corresponding to the optimal solution. Compensation capacity in the neighborhood search are)
- 2021-04-03 15:59:06下载
- 积分：1
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buck
buck电路闭环响应程序与simulink模型(buck close loop response and simulink model)
- 2020-07-21 21:28:45下载
- 积分：1
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work01v1
该模型展示了一个发电变压输电配电过程的电力系统模型。并在输电过程中产生故障，模型可得出零序电压与零序电流。中性点接地电网接地故障的建模与仿真 。(The model shows a power system model for the process of generating, transforming, transmission and distribution. The zero-sequence voltage and zero-sequence current can be obtained from the model when faults occur in the transmission process. Modeling and Simulation of grounding fault in neutral grounding grid.)
- 2020-06-17 06:00:02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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AVO-forward
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)
- 2013-10-29 10:17:22下载
- 积分：1
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rtest
HLDZ系列回路电阻测试仪是测量断路器、母线连接处、母线上接触部件和其它流经大电流接点的导电回路电阻及冶金部门测试两种不同金属面接触电阻的可靠性高的通用测试仪器。
技术指标
1、输出电流： ≥３００Ａ
2、分辨率： ±１ 微欧
3、测试范围： ０—２０００ 微欧
4、测量准确度： 0.5％
(HLDZ series loop resistance tester is a measure of circuit breakers, busbar joints, bus parts and other exposure to a large current flows through the contacts of the conductive loop resistance and metallurgical sector test two different metal surface contact resistance and high reliability of the general test equipment. Specifications 1, output current: ≥ 300A 2, resolution: ± 1 micro Euro 3, Range: 0-2000 micro Euro 4, the measurement accuracy: 0.5 )
- 2010-08-04 22:30:53下载
- 积分：1
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PMSM_SPWM
风力发电系统中，永磁直驱模型在Matlab中的建模研究(Permanent magnet direct drive wind power generation system, a model in Matlab modeling study)
- 2013-02-27 11:10:30下载
- 积分：1
