電壓波形 的英文怎麼說
中文拼音 [diànyābōxíng]
電壓波形
英文
voltage waveform-
In addition, we analyse the dead time effects of pwm control on the output waveform
另外還分析了逆變橋上下管驅動信號上的死區對輸出電壓波形的影響。Comparing with other current, the interfluent power supply has many merits such as simple structure, high precision and perfect voltage wave
該交流穩壓電源與現有交流穩壓電源比較,具有結構簡單、精度高、電壓波形好等優點。Series reactor is applied to ac power system with rated voltage of 6kv - 63kv and series connected with shunt capacitor banks for restraining wave distortion in grid voltage so as to improving the quality of power system and ensure the safety of its operation. it can restrain harmonic current and surge current in capacitor banks so that the capacitor will operate reliably
Ckdk型串聯電抗器,適用於6 63 kv電力系統中,與並聯電容器相串聯,用以抑制電網電壓波形畸變,從而改變電網質量和保證電力系統安全運行抑制流過電容器組的諧波電流和限制合閘涌流,從而保護電容器的安全可靠運行。Dry - type air - cored series reactor is applied to ac power sys - tem with rated voltage of 6kv 10kv 35kv and series connected with shunt capacitor banks for restraining wave distortion in grid voltage so as to improving the quality of power system and ensure the safety of its operation
乾式空芯串聯電抗器適用於6kv 10kv 35kv電力系統中與並聯電容器組串聯,用於抑制電網電壓波形畸變,從而改善電網質量和保證電力系統安全運行,抑制流過電容器組的諧波電流和限制合閘涌流,從而保護電容器使之安全運行。In view of this situation this article has conducted research to the design of metallurgy auxiliary biography with the frequency conversion table electrical machinery first multianalysis to the frequency changer and the frequency conversion table electrical machinery movement characteristic is carried out, the voltage waveform harmonious which the frequency changer outputs is big, attacks in a big way, and the voltage climbing rate reaches as high as 6600v / mu s which is 20 times ordinary sine alternating voltage, the rolling mill auxiliary biography table set the extremely strict request to the electrical machinery ; its movement frequency is very low, rate frequency in 8 - 20hz ; the velocity modulation scope is wide, the lowest movement frequency lowers to 1hz, and the starting number of times is quite frequently, each hour reaches as high as 600 - 800 time, the impact shoulders in a big way, the overload capacity request is high
針對這一情況本文對冶金輔傳用變頻輥道電機的設計進行了系統研究。首先對變頻器和變頻輥道電機的運行特性進行詳細分析,變頻器輸出的電壓波形諧波大,沖擊大,電壓上升率高達6600v / s ,是普通正弦交流電壓的20倍;軋機輔傳輥道對電機提出了十分嚴格的要求:其運行頻率很低,額定頻率在8 - 20hz ;調速范圍寬,最低運行頻率低到0 . 5hz ,起動次數相當頻繁,每小時高達600 - 800次,沖擊負荷大,過載能力要求較高。The instantaneous voltage inner loop is used to control output voltage waveform to track a sinusoidal waveform. and the outer average voltage loop guarantees accuracy of output voltage
電壓瞬時值內環保證輸出電壓波形的正弦度,平均值外環實現對輸出電壓幅值的控制。( 3 ) verifies the voltage wave, electrical current vuive and output power wave of asteroidal magneto, and the veracity of parameters by a series of experiments. the experimental result demonstrates that the error is less than 10 % between theoretic value and actual value
( 3 )通過一系列實驗驗證了星形磁電機空載電壓波形、電流波形、短路電流倍數、輸出功率等波形和參數的準確性,實驗結果表明,理論與實測值相差不到10 。Secondly, the math model of the high - speed pm generator with a shielding is deduced. the method of how to analyze the electromagnetic field of the generator is introduced. and with the help of a kind of fem software, the parameters of a model machine are calculated and simulated, including the electromagnetic field, no - load voltage, single - side magnetic force, loaded torque and axial force
其次,對轉子帶防護罩的高速永磁發電機數學模型進行了推導,介紹了利用有限元法對電機磁場進行分析的方法,並運用有限元軟體對一臺樣機的參數進行了模擬,包括電機磁場分析、空載電壓波形、單邊磁拉力、負載轉矩以及軸向力等方面的內容。Most of the traditional real - time detecting method for harmonic current is based on sinusoidal voltage or locking the voltage phase accurately, which deviating from the real circumstances
由於傳統的諧波電流實時檢測方法大都是基於正弦的電壓系統或對于電壓波形達到精確鎖相的前提,而現實情況卻往往不是如此。This paper put forward a method of using amending sine value in the spwm sine table. this method can correct the distortion of the output voltage waveform, which resulted from the dead time used to the voltage type whole bridge main circuit. the inverter system adopts digital fuzzy controller with feed forward correction and which proportion coefficient and integral coefficient is changeable, so dynamic response is improved
本文提出了一種採用修補spwm正弦表值的方法,用以改善電壓型全橋逆變主電路因上下橋的功率器件切換時先關斷后導通的死區時間而引起的輸出電壓波形畸變;逆變系統採用帶前饋校正的變比例變積分系數的模糊控制器,提高了系統的動態響應指標;系統設計了完善的保護措施,並具有市電電網的故障診斷功能。The effects of pulse voltage waveform on physical and chemical water treatment processes include double layer capacitor effect, mass transport, absorption and deabsorption on the surface of electrode
脈沖電壓波形主要影響廢水處理的三個物理化學過程,即:電容效應、液相傳質、吸附和脫吸附。In this circuit, we use many kinds of negative feedback to modify the ou tput wave, which can decrease the distortion. and we use the high - voltage and high frequency capacitance efficiency, which can decrease the disturbance of output signal of variable frequency source for the test of part discharge
採用了多種負反饋迴路修正輸出波形,使得輸出電壓波形的失真度很小;並且在電路中有效利用高壓高頻電容,減小了變頻電源輸出的電壓對局部放電試驗時的干擾。With the strong dsp as the control unit, the design of main circuit structure is provided, and the control policy for the main circuit loop, the tuning of the triggering angle for thyristor are given
在具體的系統實現中,變換器主迴路選擇環流控制方式,採用高性能dsp作為模糊控制核心,通過加權平均判決的模糊決策演算法對變換器主迴路晶閘管的觸發角進行調制,從而有效控制輸出電壓波形。The main factors to choose connection mode of rectifier unit are discussed. the vectorgrams of transformer in different connection modes and the output voltage waveform after rectifying are analyzed
摘要闡述了選擇整流機組接線方式時需考慮的主要因素,分析了採用不同變壓器聯結方法的相量圖以及整流后輸出的電壓波形。A switching power supply that can output any arbitrary voltage waveforms was designed and made for wastewater treatment
設計和製作了用於污水處理的形變開關電源樣機。該樣機能輸出任意形狀的脈沖電壓波形。On the basis of fault classification, the output voltage waveforms are divided into sub - waveforms by the counts of rectifier voltage pulse waves, then the sub - waveforms are further classified by real time measurement of voltage, taken from sub - waveform sampling points ' average values and standard deviations, thus tin fruit waveforms can be described by pattern vectors
在對各種故障進行分類的基礎上提出根據整流電壓的脈波數將輸出波形分段,通過即時監測各波段電壓采樣均值和標準差,對各段電壓波形進行分類,從而將故障波形用模式向量表示。This scheme can achieve the satisfactory static and dynamic response, and can be used in occasion of high quality voltage waveform
此方案可使逆變電源輸出電壓波形兼具良好的穩態和暫態特性,可用於逆變電源輸出波形質量要求較高的場合。In theory analysis, the voltage waveforms of the 12 - pulse waveform controlled rectifier circuit and three - phase thyristor converter under fault and normal condition are analyzed and researched in detail, all the faults states are summarized and classified according to the aberrant voltage waveforms
在理論分析方面,本文對三相橋式整流電路、 12脈波可控整流電路等大功率電力電子裝置整流電路在正常運行及故障狀態下的整流電壓波形進行了詳細分析和研究,按照電壓波形對故障狀態進行了總結和歸類。In order to measure magnetization characteristic with high accuracy we must keep the wave of magnetic induction is sine, so we must control the excitating voltage
為了能夠精確的測量磁化特性必須保證磁感應強度波形為正弦,因此必須對激磁電壓波形進行控制。The influence of frequency, voltage, waveform of the excitation source and other factors in the new exciting scheme are discussed, based on which an optimum excitation scheme is presented to maximum the torque output of the machine in the low speed range
在此基礎上,系統地分析了在單相勵磁條件下的勵磁頻率、電壓、波形等因素對電機特性的影響,並提出了最佳勵磁的方案。分享友人