您要查找的是不是:
- higher harmonic current 高次谐波电流
- The series-parallel compensation UPS which is composed of delta inverter has the feature just as low energy consumption, small harmonic current, and high energy availability. 由Delta逆变器构成的串并联补偿式UPS较之传统的UPS具有能量浪费少,谐波电流小,能源利用率高的特点。
- The experiment results indicate that the UPS using high frequency PWM rectifier has the characteristics of low harmonic current and high input power factor ,and has a good future. 实验结果表明 ,采用PWM整流电路的不间断电源具有注入电网的谐波电流小、输入功率因数接近 1等优点 ,是一种很有发展前途的不间断电源。
- When zero sequence or high secondary harmonic current component appear in the circuit, the total current in the shield is zero, no electromagnetic interference with outside. 当线路出现零序或高次谐波电流分量时,屏蔽层内电流总和为零,不对外界产生电磁干扰。
- A protection algorithm can be judged as having strong capability of anti interference if it can eliminate decaying direct current component and high harmonic whose frequency is not the integer times of system base-frequency. 摘要能否滤除非系统频率整数倍的谐波和衰减的直流分量是衡量保护算法抗干扰能力的重要特徵。
- The first is a limitation in the harmonic current that a user can transmit into the utility system. 第一个准则是限制用户可送入用电系统的谐波电流。
- The apace vector PWM has the character of wide linear range, little higher harmonic and easy digital realization, so it is being widely used in PMSM driver system. 摘要空间矢量PWM调制,它具有线性范围宽、高次谐波少、易于数字实现等优点,在新型的永磁同步电机驱动器中得到了普遍应用。
- Keywords :shunt active power filter, harmonic current, iterative learning controller (ILC), nonlinear load. 关键词: 并联式有源滤波器;谐波电流;迭代学习控制;
- For the damage of electric network higher harmonic,analyze the cause of higher harmonic measures and propose control higher harmonic measures. 针对电网高次谐波的危害,分析了高次谐波发生的原因,提出了对高次谐波的抑制措施。
- In HVDC system, It is meaningful to search for a new way to mearsure the harmonic current. 在高压直流输电系统中,研究运用新的测量谐波电流的方法和技术有着重要的意义。
- To reject higher harmonic produced in process of temperature adjusting,a zero-crossing triggering technic is put forward. 介绍了恒温电热毯的硬件及其模糊控制系统,提出了过零触发技术,使得在调节温度过程中产生的高次谐波大为减少。
- The parallel APF compensates the remained harmonic current and fundamental current losses. 进入电网的残余谐波电流以及由于参数波动引起的基波电流损失由并联型APF补偿。
- It is found that the electron beam may approach ideal bunching, each harmonic current of thebeam may reach about 5. 发现在二极管与共振腔结合的系统里,电子束可实现理想群聚,各次谐波电流在非相对论条件下可达到初始电流的5。
- Over 35 years ago, I began developing a new tonal vocabulary for the piano that allows the higher harmonic overtones to speak as eloquently as the notes themselves. 35年前,我开始发展一套新的钢琴音调范围,让更高的和谐泛音能如同音符一般的拥有各自独特的表现力。
- With the increase of the laser intensity, HR lines only appeared as the background of high harmonic generation (HHG) due to its weak intensity. 在理论上阐明了超拉曼谱线不同于高次谐波谱线的物理产生机制。
- With the analysis of the harmonic current and power factor of Rectification set of Mine Hoist,the way of filter design is introduced. 分析国内某矿井提升机整流供电系统网侧谐波电流和功率因数情况,介绍滤波器设计的方法。
- The occurring of higher harmonic is introduced,its harm to power system is analyzed and the measures to suppress the harmonic of power system are proposed. 介绍了高次谐波的产生,分析了高次谐波对电力系统的危害,并提出了电力系统抑制谐波的措施。
- With the analysis of the harmonic current and power factor of Rectification set of Mine Hoist, the way of filter design is introduced. 摘要分析国内某矿井提升机整流供电系统网侧谐波电流和功率因数情况,介绍滤波器设计的方法。
- With the increase of the laser intensity, the HR lines only appeared as the background of high harmonic generation (HHG) due to its weak intensity. 在理论上阐明了超拉曼谱线不同于高次谐波谱线的物理产生机制。
- Detecting the harmonic current and reactive current (pq method) based on the instantaneous reactive theory is suitable in the APF device. 本文采用基于瞬时无功理论的pq法检测谐波电流和无功电流,克服了传统谐波电流检测方法实时性能差的缺点,并且容易实现。