Effect of Leakage inductance of high frequency transformer on work, state of IGBT welding inverter power source; 结合逆变弧焊电源的工作特点,详细介绍了其高频变压器的设计方法。
The function of planar power transformer in the suppression of leakage inductance and temperature rise of high frequency transformer is presented in this paper briefly. 本文简要分析了平面型变压器在抑制高频变压器中的漏感和温升中的作用。
A novel principle of transformer protection using equivalent instantaneous leakage inductance, based on the transformer model loop equation, is proposed. 在变压器模型回路方程的基础上,应用等效瞬时漏电感,提出了一种新型变压器保护原理。
By eliminating the mutual flux leakage in the transformer loop equation, a two-terminal network only containing the winding resistance and the leakage inductance is generated. 该原理通过消去变压器回路方程中直接体现主磁通的非线性项,构造了仅含漏电感和绕组电阻的二端网络。
Calculation on Losses and Slot Leakage Inductance for Air-cooled Excitation Winding 转子空内冷励磁绕组的损耗和漏感计算
For example, the peak at20 MHz in the spectrum is caused by the parasitic oscillation due to the output capacitance of the MOSFET and the leakage inductance of the transformer. 举例说明,20兆赫兹的峰点是钳位过程结束后主要由场效应晶体管输出电容和变压器漏感引起的寄生振荡产生的。
The leakage inductance of power transformer is one ofthe main interference sources in the circuit. 作为开关电源核心部件的功率变压器的漏感是高频开关电源的主要干扰源之一。
ZVS is realized by adding a proper leakage inductance to secondary of the high frequency isolation transformer. 通过在高频变压器的次级增加一个谐振电感并配合开关管PWM控制,实现了主开关元件零电压开通。
Therefore, the operation states of transformer can be effectively distinguished by calculating the equivalent instantaneous leakage inductance. 因此,通过计算等效瞬时漏感参数,可有效地识别变压器的运行状态。
This planar transformer winding AC resistance and leakage inductance are investigated for the different winding arrangements. 本文讨论了高压平面脉冲变压器的交叉绕组结构的优点,探讨了几种有着不同交叉绕组的变压器的交流阻抗和漏感。
Analysis and simulation is performed, with the results that, the proper selection of clamping capacitor, transformer leakage inductance are critical to the proper working of the converter. 本文详细地介绍了推挽正激电路的工作原理,分析了环流过程和变压器漏感、箝位电容对电路工作的影响,给出了箝位电容的选取方法。
This software system uses the device of signal collection to realize monitoring the magnitude of voltage and current of primary and secondary side of transformer, and calculates the resistance and leakage inductance values of transformer's windings to determine the deformed condition of windings. 本软件系统利用信号采集装置实时监测变压器绕组原、副边的电压和电流量,实时计算变压器绕组的电阻和漏感值来判断变压器绕组变形情况。
Zero-voltage-switching were realized by making full use of leakage inductance of the transformer. 该电路充分利用变压器漏感,实现开关管零电压开关。
Finally, rotor slot of variable frequency motor is optimum, stable-state performances and slot leakage inductance of respective rotor slot at different air gap length are calculated after motor is optimum. 最后对变频电动机的转子槽形进行了优化设计,计算了优化后电机在不同气隙下的稳态性能和转子各槽槽漏感。
And the variation tendency of stable-state performances and slot leakage inductance is consistent with that before optimum. 与优化前电机相比,随着气隙的变化,稳态性能和各槽槽漏感变化趋势一致。
Based on the analysis of the characteristic of the novel soft-switching submerged arc welding inverter by adopting saturable inductor and fully utilizing the magnetic inductance and leakage inductance of high frequency power transformer to widen soft-switching range, the structure and parameters of high frequency power transformer are designed. 在分析了采用饱和电感、充分利用功率变压器励磁电感和漏感来实现零电压开关换流的新型软开关埋弧焊逆变器特点的基础上,结合实际课题对高频功率变压器进行了结构和参数设计。
The winding deformation can result in the change of the parameters of leakage inductance during internal fault. 在内部故障的情况下,绕组变形将会导致漏电感参数发生变化;
For the Multi loop model of the synchronous motor, this paper calculated all the parameters, including the leakage inductance. 在运用多回路法建立的同步电机数学模型中,计算了包括漏感在内的详尽的参数。
The Current-Fed Half-Bridge ( CFHB) converter suffer from the leakage inductance which results in oscillation and voltage spike. 由于电流源型半桥变换器(Current-FedHalf-BridgeConverter,简称CFHB)中存在变压器漏感,引起了开关管关断电压尖峰。
Based on this model, the paper analysed the influence of magnetizing inductance and leakage inductance on inductive charging system, then designed the coupler of inductive charging experiment system. 并在该模型的基础上,分析了耦合器漏感与励磁电感对感应充电系统的影响,设计制作了实验系统耦合器。
The leakage inductance calculation of a frequency changer by using the finite element method of harmonic balance is proposed. 提出了一种基于谐波平衡有限元算法的铁磁型倍频变压器等值漏电感的计算方法。
The rotor bar resistance and slot leakage inductance considering frequency effect are gotten by mean of bar loss calculation and leakage magnetic field energy calculation. 通过直接计算导条损耗与漏磁场能量得出了计及频率影响时转子导条电阻与转子槽漏感。
By using the finite element method, a two-dimensional model of the stator bars in the slot portion and end portions has been established. The magnetic field distribution in this model is approximate to the leakage inductance potential method. 利用有限元法,建立了定子线棒端部的二维模型,所得到的磁场分布结果与漏感电势法计算公式相接近,从而验证了漏感电势法的正确性。
In the commutation process, intermediate frequency transformer leakage inductance voltage spike has been elimination. 换流过程中,中频变压器漏感尖峰电压能够较好的消除。
The resonant circuit has the ability of soft switch. If we add the distributed capacitance and the leakage inductance of high frequency transformer as part of the resonant circuit parameters, we can reduce the switching loss greatly. 谐振回路具有使开关管软开关的能力,通过将高频变压器分布电容和漏感作为谐振回路参数的一部分可以大幅度降低开关管损耗。
This paper describes the calculation of the loss of the strand loop method and potential leakage inductance of circulation. With detailed descriptions of circulating current loss formula of the lack of the leakage inductance potential transposition method, empty and extend transposition method. 本文介绍了股线回路法和漏感电势法对环流损耗的计算,并详细介绍了漏感电势法计算不足换位、空换位、延长换位等换位方式环流损耗的具体计算公式。
By the reason of the loose coupling characteristics of contactless transformer, and a large leakage inductance, series compensation capacitor which can offset the reactive power and the voltage drop impact produced by leakage inductance is adopted. 在分析得到无接触变压器的松耦合特性,有较大的漏感存在,采用电容串联补偿的方式抵消了漏感产生的无功及压降影响。
Flyback converter introduces an active clamp circuit to inhibit the voltage spikes due to the leakage inductance of the transformer, minimize switch voltage stress, and realize the soft switch. 在反激变换器中采用有源箝位技术,抑制了因变压器漏感而产生的电压尖峰,减小了开关管电压应力,同时实现了开关管的软开关。
The circulating current loss formula of leakage inductance potential method has been verified. 本文对漏感电势法的计算公式进行了验证。
As the foundation, the self-inductance, mutual inductance between the windings and the mutual leakage inductance of the DWIG are deeply analyzed. 作为理论分析和仿真研究的基础,文章深入分析了各绕组的自感系数、绕组间的互感系数以及绕组互漏感等参数,建立了DWIG发电机的数学模型。