摘要
利用 MATLAB软件平台上的仿真软件 Simulink建立了 SS1型和 SS4型电力机车数字仿真模型 ,提出了通过机车牵引控制特性函数与整流回路的关系确定导通角α的方法 ,并利用 DSP工具箱的 FFT函数对电流进行 FFT,得到电力机车在不同网压、级位和速度下注入牵引网的基波和各次谐波电流的幅值和相角 ,在此基础上建立了 SS1型和 SS4型电力机车的谐波电流数据库。为计算牵引变电所全天 2 4 h谐波电流的随机模拟计算打下了基础。
The dynamic models for simulating type- SS1and type- SS4electric locomotive harmonic current have been developed by using simulation software Simulink based on MATL AB.A new m ethod is proposed for determining the angle of flow through the relationship between the traction characteristics function and com mutating circuit in the electric locomotive.With the function FFT in the DSP toolbox,the am plitudes and phase angles of the fundam ental harmonic and harm onic current are obtained under different network voltages and at different levels and velocities. The simulation results based on the m odels proposed are stored in a database,laying a foundation for random sim ulation calculation of the traction substation's around- the- clock harmonic current in the traction substation.
出处
《电力系统自动化》
EI
CSCD
北大核心
2002年第4期51-55,60,共6页
Automation of Electric Power Systems
基金
国家自然科学基金重点 (5 9737140 )
