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中文摘要：
变压器式可控电抗器CRT （controllable reactor of transformer type）的工作原理对其运行性能具有重要影响.首先简要介绍了多绕组CRT与分裂式CRT的工作原理,通过求解自、互电感电路方程得到二者工作绕组电流的瞬时表达式,并采用傅里叶级数分析方法求得工作绕组电流各次谐波分量有效值;然后基于2种CRT等效电路,在Matlab中搭建仿真模型,从工作绕组电流波形、过渡过程、控制绕组电流变化趋势这3方面对二者进行比较分析.分析结果表明,分裂式CRT在工作原理上比多绕组CRT更具优势;最后综合分析了2种CRT的优缺点,为CRT的设计制造提供必要参考.
英文摘要：
The working principle of controllable reactor of transformer type （CRT） has great influence on its operation performance. In this paper, the working principles of multi-winding CRT and split CRT are briefly introduced. The in- stantaneous expressions of work winding current are obtained by solving the circuit equations expressed by the self-in- ductance and mutual-inductance, and then the RMS of each harmonic current in work winding are obtained by means of Fourier series. Based on the equivalent circuits of two kinds of CRT, the corresponding simulation models are construct- ed in MATLAB, and then the three aspects of the current waveform of work winding, transition waveform and the varia- tion trends of control winding currents are compared. The analysis results show that split CRT has more advantages than multi-winding CRT in the working principle. Finally, the advantages and disadvantages of the two methods are analysed comprehensively, which provides a reference for the design of CRT.
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Simulation Analysis for Controllable Reactor of Transformer Type with Multifold Magnetic Materials I
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