瞬時畸變 的英文怎麼說
中文拼音 [shùnshíjībiàn]
瞬時畸變
英文
transient distortion-
At present, the typic harmful current detection methods are the fast fourier transform algorithm in frequency domain and methods based on the instantaneous reactive power theory, these methods all require some transform and quick, real - time calculating, so high precision analog multipliers or high speed dsp chip with fast a / d are needed, this results in complex circuit and high cost ， which have restricted the development of apf
目前畸變電流檢測常用的方法有頻域法的fft和基於瞬時無功理論的畸變電流檢測法。這些方法均有一定的變換，需要快速、實時運算，因此必須使用高速的數字微處理器和高性能a / d轉換器，這必將大大提高系統成本，使得電路結構復雜，在一定程度上限制了有源濾波器的發展。Otherwise, we also have probed into the reasons for the pulsation of instantaneous powers in distorted systems
另外，本文對于畸變系統中瞬時功率脈動的原因也做了一些探討。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
電網不平衡時，基於電網平衡為約束條件設計的三相vsr將出現不正常運行狀態，比如三相vsr交流電流中出現負序分量，使交流電流嚴重不對稱；直流電壓和交流電流中出現非特徵諧波分量，使直流電壓和交流電流波形發生嚴重畸變；三相vsr從電網吸收不平衡的瞬時功率等一系列問題。An accurate and real - time detecting instantaneous distorted current is critical for apf to accurately compensate harmonic currents
準確、實時地檢測出電網中瞬態變化的畸變電流，是有源電力濾波器進行精確補償的關鍵。With development of high - speed missile imaging detection aero - optical effects, certain accomplishments on theoretical analysis have been obtained. the laboratory test system needs to be built to vertify the correctness and validity of theory. at the same time, to study the transient influence of high - speed flow on image transmission, an aero - optical effect experiment of wind tunnel is needed furtherly on the foundation of the transform of wind tunnel, in order to use the researching accomplishment of aero - optical effects in the aero - optical distortion image adjustment evaluation
隨著高速導彈成像探測氣動光學效應機理研究工作的深入開展，在理論分析上取得了一定的成果，需要搭建實驗室試驗系統來驗證理論的正確性和有效性，同時為了較真實地研究高速流場對圖像傳輸的瞬態影響效應，需要在風洞改造的基礎上進一步進行氣動光學效應風洞試驗，期望將獲得的氣動光學效應研究工作成果用於氣動光學畸變圖像校正效果的評估。In order to get good dynamic as well as static performance, multiple - loop control strategy with the instantaneous outer voltage loop and inner current loop is used in pfc converter based on dsp tms320lf2407a
內環通過瞬時值控制獲得快速的動態性能，保證輸出畸變率較低，外環使用輸出電壓的瞬時值控制，具有較高的輸出精度。分享友人