1) low switching losses
低开关损耗
1.
According to the control requirement and actual project conditions of three-phase high power factor rectifier,the low switching losses three-phase PWM rectifier which adopts hysteresis current control strategy based on load current feed-forward control was researched.
针对三相高功率因数整流器的控制要求和实际工程条件,进行了基于低开关损耗的三相PWM整流器研究,系统采用了负载电流前馈的电流滞环控制策略。
2) less switching loss mode
低开关损耗模式
1.
This paper illustrates a fast algorithm of SVPWM in the less switching loss mode.
介绍了在低开关损耗模式下的一种快速SVPWM算法 ,通过DSP数字信号处理器随机改变每个开关周期中零电压矢量的位置 ,实现 2种低开关损耗模式之间的随机转换 ,使逆变器输出谐波均匀分布 。
3) switching loss
开关损耗
1.
To reduce large-switching losses of a power converter with corresponding high working frequency due to small inductor in hybrid electric vehicle (HEV) system, a novel varied frequency control scheme is proposed.
针对混合动力车载变换器中由于电感量较小,而导致功率器件工作频率较高,从而引起开关损耗过大的问题,该文提出了一种新颖的变频控制方法。
2.
The Genetic Algorithm is applied to balance the THD (total harmonic distortion) and the switching loss.
将三相逆变器控制的求解问题转化为数学函数的优化问题,采用遗传算法是解决数学优化的较好的方法,并能解决目前许多控制策略中THD(谐波畸变率)和开关损耗不能兼顾的问题。
3.
How to reduce the switching loss of the power electron equipment is the key technology of high power of chopping AC regulator.
如何减少电力电子器材的开关损耗,是斩控式交流调压器大功率化的关键技术。
4) switch loss
开关损耗
1.
By analyzing the pulse transformer and ideal drive electric current wave, we try to improve the rate of changing-over, discuss the damped oscillation, point out existing circuit design error, and working a new circuit design which can reduce the common circuit circulation and switch loss.
通过对脉冲变压器及理想激励电流波形的分析,如何提高转换速率,阻尼振荡予以讨论,指出目前存在的设计误区,做出减少共态导通与开关损耗的新设计。
2.
This algorithm is simpler than the traditional algorithm,and less switch losses arise in the asynchronous motor system.
该算法比传统算法简易,在驱动异步电机系统中产生较小的开关损耗。
3.
The dynamic model of insulated-gate bipolar transistor switching on and off is established,and the relationship between switch loss and switch frequency is deduced.
建立了绝缘栅双极晶体管开通和关断的动态过程模型,推导出开关损耗与开关频率的关系式,指出开关损耗与开关频率成正比而与占空比无关。
5) switching losses
开关损耗
1.
The designer of multilevel converter must model the switching losses of converter switches to optimize the performance of system.
在优化多电平变换器系统性能时必须建立变换器开关损耗模型。
2.
In order to improve the efficiency of the electrical vehicles driving by permanent magnet synchronous motor(PMSM),based on the special role of zero voltage space vector in the control of PMSM,a new technology of space vector modulation strategy was adopted by adjusting the duty time of zero vector accordingly for reducing inverter switching losses.
为了提高电动汽车用永磁同步电动机(PMSM)驱动系统的效率,根据零矢量在PMSM控制中的特殊作用,采用了一种新的零矢量动态分配技术的空间矢量调节策略,以降低功率管的开关损耗;依据转速误差决定动态和稳态时功率管的开关频率,以降低开关次数引起的损耗;在基速运行范围内采用了最大转矩/电流控制方式,并据此改变定子磁链的给定值。
3.
The paper presents a control algorithm of rectifier based on SVPWM which adopts the two-phase modulation and reduces switching losses.
提出一种将两相调制技术应用于SVPWM整流器从而获得低开关损耗的控制算法,基于TMS320F240 DSP进行数字实现,并验证了可行性。
6) lossless switching
无损耗开关
补充资料：介质损耗角正切试验(见电容率与损耗因数试验)
介质损耗角正切试验(见电容率与损耗因数试验)
dielectric loss tangent test
)!eZh.sunhooJ一002匕engq一e sh一yon介质损耗角正切试验(dieleetri。1055 tangenttest)见电容率与损耗因数试验。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条