switch loss造句
例句與造句
- But the increase of switching frequency results in higher switching loss
而傳統(tǒng)變換器開關(guān)頻率的提高必然帶來開關(guān)損耗的增加。 - But the switching loss is increased as the switching frequency is improved and so the converter efficiency is decreased
但隨著開關(guān)頻率的提高，硬開關(guān)的開關(guān)損耗增加，變換器的工作效率隨之下降。 - The voltage peak and switching loss during switching of inverter is the main cause that due to the damage of igbt
逆變橋電路開關(guān)過程中出現(xiàn)的電壓尖峰和大的開關(guān)損耗是導(dǎo)致主開關(guān)器件igbt損壞的主要原因之一。 - For increasing the switching frequency and reducing switching losses and emi noise of the pfc circuits , soft - switching technologies are adopted
在功率因數(shù)校正變換器中采用軟開關(guān)變換技術(shù)可以使開關(guān)頻率提高、降低開關(guān)損耗、并有效抑制emi 。 - However , the h - bridge maglev chopper has serious switching losses , so as to have snubber circuit ; there is high emi with the chopper
然而, h -橋斬波器開關(guān)損耗大,需要添加緩沖網(wǎng)絡(luò),電磁干擾十分嚴重;對供電電源有反向電流沖擊,容易造成供電電源和濾波電容的損壞。 - It's difficult to find switch loss in a sentence. 用switch loss造句挺難的
- With this method , the minimum switching losses can be reached , and the maximum switching current can be reduced effectively . so this method can meet the requirement of hvdc - vsc where lower switch loss is emphasized
這種方法開關(guān)損耗最小，并可有效降低開關(guān)器件的最大開關(guān)電流，適應(yīng)了hvdc - vsc降低開關(guān)損耗的需要。 - First of all , the main - switches of the zvs chopper have zero - voltage turn - on and turn - off totally , so it has little switching losses . for this , the efficiency of the chopper can be improved
首先,零電壓軟開關(guān)斬波器的主功率器件完全實現(xiàn)了零電壓開通和關(guān)斷,所以它的熱損耗很小,減小了系統(tǒng)的熱損耗,提高了系統(tǒng)的電源變換效率。 - For the limitations of traditional pwm hard switching circuit , a kind of zero of pair soft switching technology is introduced and the switching loss can be cut down by it and the reliability of inverter in case of high frequency can be improved also
由于傳統(tǒng)pwm硬開關(guān)電路的局限性，本文采用一種雙零諧振型軟開關(guān)技術(shù)降低開關(guān)損耗以及在高頻情況下提高整機的可靠性。 - The theoretical analysis and result of simulation indicate that the two - phase modulation reduces the switching losses 50 % relative to the quasi - optimum and the space vector modulation and overmodulation can generate higher voltages with low total harmonic distortion
分析表明二相調(diào)制方法相對于準優(yōu)化方法減少開關(guān)損耗近30 ，空間矢量的調(diào)制與過調(diào)制可以大大的提高直流母線電壓的利用率。 - The inverters based on space - vector pwm technique have many good qualities , such as less pulsating torque , higher usage of dc bus voltage , less switching loss , better high - speed regulation performance , so it is applicable for the high - performance motor control system
電壓空間矢量pwm技術(shù)( svpwm )將逆變器和電動機視為一體，由之控制的變頻器具有輸出轉(zhuǎn)矩脈動量低、直流電壓利用率高、開關(guān)損耗小、高速調(diào)速性能好等優(yōu)點，適用于高性能電機調(diào)速控制系統(tǒng)。 - The system had auto startup and stop function by software . the dsp based motor control system had lower current harmonic , more efficient use of supply voltage than spwm , less switch loss . on the other hand , this system make a lower noise for the pwm modulation . frequency is up to 20khz
本系統(tǒng)實現(xiàn)了電機的軟啟動、軟關(guān)斷功能，電機電流的諧波失真較少，電壓利用率比常規(guī)的正弦波脈沖寬度調(diào)制( spwm )有了較大的提高，器件的開關(guān)損耗也得到了明顯的減少。 - Harmonic components of the input current in method 2 is lesser than method 1 , neglecting the losses and switching effects of the converter . 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
當仿真模型中的雙向開關(guān)由兩個igbt和兩個快恢二極管組成時，由于igbt的開關(guān)損耗等因素對輸入電流的影響，在仿真得到的輸入電流頻譜圖中，諧波成分的減小不是很明顯，但調(diào)制策略方式2和方式1的諧波成分仍有所不同。 - In this part , the high - frequency series inverter with resonant pole capacitor is introduced mainly . the current - exchanging processes of the inverter in different working modes are analyzed , how to reduce the switching loss is discussed , and the calculating methods of snubber capacitor c , factor angle switching frequency and pulse width pw are given in optimum switching process . and results of simulation and experiment verify the validity of theoretic analysis
接著重點研究了含有諧振極無損緩沖電容的逆變器，對其換流過程中的不同工作狀態(tài)進行分析，討論了如何減小逆變器的開關(guān)損耗，給出了最佳工作狀態(tài)下緩沖電容c 、感性角、開關(guān)頻率、觸發(fā)脈沖的脈寬pw的詳細計算方法，并通過大量的仿真和實驗波形證明了理論分析的正確性。 - Switching loss and efficiency of the proposed resonant pole zvt three - phase pwm inverter are analyzed and discussed . results of calculation and testing of the prototype together with a hard - switching inverter with the same specification show that an improvement of 2 % ~ 3 % is obtained . based on the analysis of drawbacks of existing svpwm technique in resonant pole zvt three - phase pwm inverters , several improved svpwm methods are presented
對提出的諧振極零電壓過渡三相pwm逆變器的開關(guān)損耗和工作效率，進行了深入的分析和討論，并針對原理樣機進行了理論計算和實際測量，并與相同規(guī)格的硬開關(guān)三相逆變器進行了對比研究，結(jié)果表明，采用提出的軟開關(guān)技術(shù)的原理樣機的效率可以提高2 % 3 。 - Switching losses analysis indicates that the switching losses can be extremely reduced with different load qualities by choosing proper phase - voltage modulation method . the method of minimum switching losses svm is investigated . the modulation functions of a quasi - optimum method and a two - phase modulation method are given
本文深入研究了一種基于電壓空間矢量的最小開關(guān)損耗pwm技術(shù)，給出了準優(yōu)化方法和二相優(yōu)化方法的相電壓調(diào)制函數(shù)，并在理論分析的基礎(chǔ)上，通過仿真實驗，對兩種減少開關(guān)損耗的方法和調(diào)制與過調(diào)制進行了分析。
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