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- Active power filter (APF) and dynamic voltage restorer (DVR) can effectively compensate harmonic components and voltage dip respectively. 有源滤波器和动态电压恢复器分别是解决谐波污染和补偿电能质量扰动(特别是电压跌落)的有效手段。
- Harmonic analysis shows that tooth harmonic components of no-load EMF waveform is considerable high, which give rise to high distortion and bad waveform. 对样机空载电势波形的谐波分析表明,齿谐波电势分量很大,导致空载电势波形的畸变率较大、波形较差。
- How to measure accurately the harmonic component of the transmitter? 如何准确测量发射机谐波分量?
- The decreation of the harmonic components is not apparent, but different between method 2 and method 1, due to the influence of switch losses of the IGBT, which is consisted of two IGBT and two FRD. 当仿真模型中的双向开关由两个IGBT和两个快恢二极管组成时,由于IGBT的开关损耗等因素对输入电流的影响,在仿真得到的输入电流频谱图中,谐波成分的减小不是很明显,但调制策略方式2和方式1的谐波成分仍有所不同。
- The asymmetry of the inductances and excitation flux linkage, and the harmonic components in excitation flux linkage are taken into account.The line parameter state equation is derived. 考虑了电感和磁链的不对称性及励磁磁链中的谐波分量,推导出线参数状态方程。
- For the main system,the conventional arc welding power s ource is essentially a rectifier load with a large capacitor,which results in s piky line current containing many harmonic components. 传统的逆变焊接电源对电网来说,本质上是一个带大电容的整流负载,其输入电流是一种尖角波,含有丰富的谐波分量。
- When there is one harmonic source in electric power system, the harmonic component could be derivable. 摘要当电力系统中只有一个谐波源时,各点的谐波电压可以方便的求出。
- The analysis based on magnetic equivalent circuit shows that the FOC CR produces harmonic component in its output current. 基于等效简化磁路的理论分析表明,正交可控电抗器在调节过程中产生一定的谐波。
- waveform reconstitution by harmonic components 波形分频重构
- Correlation dimension is an important parameter to measure a nonlinear time sequence quantitatively,and it is widely used to analyze harmonic component of power system and biomedical signal. 相关维数是定量描述非线性时间序列的一个重要参数,在电力系统谐波分析与生物医学信号特征描述等方面得到了广泛地应用。
- The frequency, amplitude and harmonic component of the voltage of power networks are time-variant.They have great effect on the measurement precision at the phasor in power networks. 摘要电网电压的频率、幅值和谐波含量均随时间发生变化,它们严重影响着电网相量的测量精度。
- Each of the components is useful in its degree. 每一个元件都各有程度不同的用处。
- If the frequency of a laser is modulated sinusoidally, the first harmonic component of saturated absorption signal can be used as error signal to stabilize the frequency of the laser. 对激光器进行频率调制, 检测原子分子饱和吸收信号中的一次谐波成分得到频率误差信号, 反馈控制可以实现激光频率的稳定。
- Interharmonics amplitudes are far less than the amplitudes of fundamental and harmonics components, so detection of interharmonics is sensitive to noise and they are always submerged by the noise. 间谐波幅值远小于基频或其它整数倍谐波的幅值,使其对噪声非常敏感,噪声往往会将这类微弱信号淹没。
- Those are the components of an engine. 那些是发动机的部件。
- The harmonic combination of these tones. 四度和音音调的和谐组合
- A computer consists of thousands of components. 电脑由成千上万个部件组成。
- A system of optical components that magnifies. 能起放大作用的一组光学元件
- negative-sequence harmonic component 负序谐波
- positive-sequence harmonic component 正序谐波