It neither has heating problem of the electronics soft starter, nor generates high frequency harmonic like SCR.
它没有电子软起动器的发热问题，也不会像晶闸管一样引起高次谐波。
As an effective way of eliminating high frequency harmonic, active Power Factor Correction (PFC) technology has been deeply researched and has broad application.
有源功率因数校正技术(PFC)作为一种有效的谐波抑制方法，得到了广泛而深入地研究与应用。
High frequency harmonic in electric power network can pollute the network, control high frequency harmonic is an important research problem in electrical system function.
电网中的高次谐波对电网有污染，抑制高次谐波是电力系统运行中的重要研究课题。
It is concluded that the transient response to a high frequency harmonic ground motion can increase greatly the displacement response of structures, particularly for the long period structures.
研究结果表明：在简谐地面加速度作用下，高频地震动也可以引起长周期结构产生很大的位移反应，且最大位移反应出现在结构的瞬态自由振动阶段。
A new method is proposed, based on the instantaneous reactive power theory, to detect high frequency harmonic current and instantaneous reactive current applying high pass filter simultaneously.
基于瞬时无功功率理论提出了一种应用高通滤波器同时检测高次谐波电流和无功电流的新方法。
Any subtle change of capacitance can be measured through the method of modulation on high-frequency harmonic oscillation return circuit.
电容的微小变化可通过对高频谐振回路调制的方法进行测量。
Any subtle change of capacitance can be measured through the method of modulation on high-frequency harmonic oscillation return circuit.
电容的微小变化可通过对高频谐振回路调制的方法进行测量。
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