The EMI model of DC power supply carring a chopper is founded in this paper.
针对直流电网挂接斩波器系统建立了电磁干扰(ElectroMagneticInterference,简称EMI)模型,从频域分析的角度进行干扰源分析计算和干扰路径建模,利用Matlab计算得到线路阻抗稳定网络LISN(lineImpedanceStabilizeNetwork,简称LISN)上共模干扰电流波形,并与实验测量结果进行比较,验证了其建模的可行性和正确性;在该模型基础上,对挂接带可变负载的斩波器在不同频段下产生的共模传导EMI进行了实验和分析,得出了直流电网中挂接的斩波器会因负载电感、电阻增加对电网侧产生的共模干扰电流减小的特性。
In this paper, common-mode conducted electromagnetic interference (CM EMI) of DC power supply with a 3-phase inverter is researched.
研究了直流电网挂接一个三相逆变器的共模传导干扰问题,通过研究共模传导干扰的传播途径,得到一个新的共模传导干扰频域等效电路,并提出一个由逆变器中电力电子开关产生的共模干扰源,利用实验得到的电机及有关器件的频域阻抗特性,对直流电网挂接一个逆变器的在0～150kHz频段的共模传导干扰进行了计算研究,与实验结果比较基本一致,证明文中提出的共模传导干扰频域等效电路及干扰源的正确性,并给出了挂接一个三相逆变器的直流电网共模传导干扰的特征。
A super-capacitor energy storage system applied in DC power system was analyzed and modeled.
分析了超级电容器储能系统在直流电网中的工作状态,对该储能系统进行了建模,并对开关频率分别为1、2、4 kHz时的储能系统模型进行仿真和实验。
As the large fault current occurs in DC power system, the paper makes use of IGBT to design a new type DC fault current limiter.
针对直流电网短路故障时迅速产生的短路电流,利用IGBT器件为核心,设计出一种新型的直流短路电网限流装置并阐述了其工作原理。
Shunt circuit control strategy for HVDC rectifier terminal
高压直流电网整流端的旁路控制策略
DC Grid Based Non-grid-connected Wind Power System and Its Control Strategy
基于直流电网的非并网风电系统及其控制策略
Research of Fault Diagnosis for Direct Current Electrified Wire Netting Based on Fuzzy Neural Network
基于模糊神经网络的直流电网故障诊断研究
Neural Network Control on Direct Torque Control for Brushless DC Motor
直流无刷电机神经网络直接转矩控制
Influence Scope of AC Network by DC Grounding Electrode Rated ±800 kV
±800kV直流接地极对交流电网的影响范围
Issues Related to DC Power Modulation in AC/DC Hybrid System
交直流互联电网直流功率调制相关问题
RESEARCHES ON HVDC MODELING FOR AC/DC HYBRID GRID WITH MULTI-INFEED HVDC
含有多馈入直流的交直流混合电网高压直流建模研究
Position control of DC motor based on neural network
基于神经网络的直流电动机位置控制
Study of 3-D Forward Modeling of DC Resistivity Method Using Multi-grid Method;
直流电法三维正演多重网格算法研究
Transient Stability Analysis of Shanghai Power Grid with Multiple HVDC Links;
上海电网多直流落点系统稳定性研究
Control for Brushless DC Motors Based on Genetic Algorithm and RBF Neural Network;
无刷直流电机遗传RBF神经网络控制
Application Research of VSC DC in Urban Power Grid
柔性直流技术在城市电网中应用研究
Power grid adaptability study on increasing ±800 kV UHVDC transmission capacity
±800kV特高压直流增容电网适应性研究
Design of SCR D.C. Drive System Using Utility Net for Rig
钻机电网供电可控硅直流电驱动系统设计
Adaptive PID Control Strategy Based on DRNN for Direct current Grid-connected of Wind Turbine
直驱风力发电机组直接电流并网的DRNN网络自整定PID控制
Corrosion Effects and Evaluation Method of UHV Power Line Tower Grounding Collection Caused by DC Current
特高压直流入地电流对附近杆塔地网腐蚀评估
Application of DC-flow for Reliability Evaluation in West Power Grid
直流潮流法在西部电网可靠性评估中的应用
an alternating [a direct] current dynamo
交流 [直流] 发电机