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瞬时功率的英文

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"瞬时功率"怎么读用"瞬时功率"造句

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  • instantaneous power
    ◇瞬时功率输出 instantaneous power output

例句与用法

  • Comparison about instantaneous power theory in idle work compensation system
    无功补偿系统中瞬时功率理论的比较研究
  • Otherwise , we also have probed into the reasons for the pulsation of instantaneous powers in distorted systems
    另外,本文对于畸变系统中瞬时功率脉动的原因也做了一些探讨。
  • By studying traditional instantaneous power theory in single - phase circuit , we developed a real - time detecting method in this paper based on digital technology , which can detect harmonic current and fundamental reactive current in both single - phase and three - phase circuits
    本文通过对于单相电路瞬时功率理论的分析研究,提出了一种基于数字技术的单相和三相电路谐波和无功电流的实时检测方法。
  • This paper focuses on the control strategies to improve the performance of the three - phase ac - dc pwm voltage - source - converters ( vsr ) under unbalanced power supply . the problems such as negative sequences current , voltage and current harmonics and un - constant ( un - smooth ) power flow from ac to dc side are discussed in this paper . the analytical solutions for negative sequence current and harmonic current elimination are obtained by fully feed - forward of negative sequence voltage and producing a non - harmonic current command of the inner - loop
    电网不平衡时,基于电网平衡为约束条件设计的三相vsr将出现不正常运行状态,比如三相vsr交流电流中出现负序分量,使交流电流严重不对称;直流电压和交流电流中出现非特征谐波分量,使直流电压和交流电流波形发生严重畸变;三相vsr从电网吸收不平衡的瞬时功率等一系列问题。
  • The control tactics of space voltage vector are investigated , and the simplified algorithm which judges the sector location of reference vector and calculates switch operation time is put forward . by analyzing the current hysteresis control , the relation between switch frequency , and hysteresis bandwidth and input inductance of pwm rectifier is deduced . by applying instantaneous power theory , the principle of pwm rectifier power control is analyzed , and the direct power control by matlab toolbox through estimating active power and reactive power with virtual flux is realized , and the simulation results prove that it is correct
    对常用空间电压矢量控制策略进行分析,提出了给定参考矢量所在区间判断的简化方法,以及电压矢量作用时间的求取方法;分析了电流滞环控制策略,推导出开关频率与滞环带宽以及整流器输入电感之间的关系;应用瞬时功率理论分析pwm整流器功率控制原理,通过虚拟磁链估计有功功率和无功功率,用matlab实现了直接功率控制,并验证了该控制方法的正确性。
  • Design considerations of the high power s - band rka are described , by using electron beams of voltage - 600kv , current - 5000a , and the numerical simulations for three kinds of the rka output structures are given . the three kinds of the output strctures are single - gap standing - wave ( sw ) cavity , traveling - wave ( tw ) output structure , and two output structures ( single - gap + traveling - wave structure ) . under conditions of using two output structures , the results show that the instantaneous peak power obtained from sw output cavity and tw output structure is respectively 2 . 4gw and 2 . 1gw , the both power average of 0 . 96gw and 0 . 93gw , i . e . the s - band rka of two output structures generates peak output power of 1 . 89gw at a frequency of 2 . 85ghz
    从数值模拟中得到双输出结构的微波功率输出结果为:驻波输出的瞬时功率为2 . 4gw (周期平均为0 . 96gw ) ;行波输出结构输出瞬时功率为2 . 1gw (周期平均0 . 93gw ) ,就获得了频率为2 . 85ghz的微波输出。本文简要的描述了电磁软件( magic )对速调管输出腔体进行了模拟,并对相应的模拟方法进行了评述。
  • Rational control of the pump ' s work and rest time is the key to solve the problem of void pumping . this essay gives theoretical analysis and cost comparison of every detective method , considers power detection as the most effective method , and puts forward several ways of power consumption and effectiveness power consumption at the same time . the designed electricity saving controller integrate all the above four methods , and it can work with different methods by switch between automatic and manual to broaden its accommodation
    解决油井空抽现象的关键是合理控制开机时间与停机时间长度,本文对各种检测方法进行了理论分析及成本比较,认为功率检测最行之有效,同时提出了功率检测的几种实现方法,即瞬时功率法、人工电耗法、设定功耗法及效益功耗法,所设计的节电控制器集以上四种方法于一身,可通过自动手动切换采取不同的功率检测方法,使其适应范围增宽。
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