forward power loss 中文意思是什麼
forward power loss
解釋
正向功率損耗-
But when fault was occurred, sometimes there would be great loss. for the reason, the paper put forward a microcomputer bus protection scheme suit for mv or lv power system with low current grounding based on the great researching about the working theory of current bus protections and the characteristic of mv or lv system with low current grounding. based on it, the paper has designed the platform of the hardware and the software programs
針對國內目前中、低壓電網大都未裝設母線保護裝置，發生故障不能及時切除時造成很大損失的狀況，本文在廣泛研究當前主流的母線保護動作原理並認真分析了中、低壓小電流接地系統特點的基礎上，提出了一套適合中、低壓微機母線保護裝置的研製方案，並據此選擇、搭建了硬體平臺，設計了軟體功能程序。 -
In chapter three, a back / forward sweeps based on branch loss for power flow is presents, which is credited with simple program, good numerical value stability, small ems memory and rapid calculation
第三章介紹了基於支路網損的配電網前推回推潮流演算法，該演算法編程簡單，數值穩定性好，佔用內存小，計算速度快，並且收斂性和收斂速度均優于牛頓法。 -
Magnetics is one of the main factors, which limit the power - density and characteristics of power module. for lowing weight and volume, reducing power loss and ripple current, improving dynamic performance, the magnetic - integration technique has been one of the research populations in power electronics. the thesis researches the magnetic - integration applied to the active - clamp forward converter so as to reduce the ripple current and improve its performance
對于已經大量採用高頻軟開關技術的模塊電源，限制其功率密度進一步提高、性能進一步改善的重要因素之一是磁性元件，而磁集成技術由於具有可以減小磁件體積重量，減少磁件損耗，減小輸出電流脈動，改善輸出動態性能等優點，成為目前電力電子技術的研究熱點之一。 -
The interleaving two - transistor forward converter succeeds to the advantages of the two - transistor forward converter, it has two units working alternately, the power loss of the converter is distributed and the output voltage ripple frequency is twice of the switching frequency
交錯並聯結構式的雙管正激變換器，繼承了雙管正激變換器的優點，兩個並聯單元互補工作，分擔了功率損耗，等效占空比擴大了一倍，輸出電壓的脈動頻率變為功率管開關頻率的兩倍。 -
For excessive electric energy loss in distribution network in our country, optimal control of reactive power is put forward in distribution network to decrease the line loss and increase the energy utilization rate
摘要針對我國電網電能損耗過大，提出在配電網裝設無功優化控制以降低線損，提高電能利用率。 -
Process capability index ( pci ) is also an important method to measure and improve quality, which has play a key role in assuring quality evidence, lowering cost and raising customer satisfaction indexes ( csi ). this paper studies the applications of pci and control chart from the actual viewpoint, and discusses the applications of the probability a, ( 3 of type i, ii error of the control chart, the detecting power and pci based on x control chart. in addition we explore the relationship between qlf and pci, put forward the concepts of relative loss and loss extent, adopt the linear plan to optimize pci and decide the best loss extent of each process. an example is given
）控制圖為例，討論了控制圖的兩類錯誤、檢出力與過程能力指數在實際中的應用；重要的是討論了質量損失與過程能力指數之間的關系，提出了相對質量損失、損失度等概念；研究了多道工序相對質量損失、損失度對總質量損失的影響，並從質量損失的角度出發，採用線性規劃的方法，優化多工序的過程能力指數，確定各道工序的最佳損失度，實證討論了這種關系，同時可以利用這種關系對供應商進行評價，給出了從全局的、動態的角度選擇供應商的方法，為上下游企業間的配合、監督及共同進步提供了理論基礎和實現途徑。 -
Based on the proposed loss allocation rule, a new complex power flow tracing method is put forward, which can be used for power pool model to determine the contributions of individual loads / generators to branch real and reactive power loss and mva flow and then to allocate transmission cost
在本文損耗分攤原則的基礎上，提出了能同時考慮有功、無功耦合的復功率潮流追蹤演算法，可以基於潮流解進行順流和逆流的追蹤，從而得到系統中發電機、負荷對各傳輸設備的利用份額。 -
The algorithm of economic power dispatch, which considers the constraint condition of network loss and frequency variation, is studied, and a pragmatic and effective method of frequency control is put forward, and the marginal cost is analyzed
本文研究了計及網損和頻率變化率約束條件的有功功率經濟分配的演算法，提出了一種實用有效的頻率控制方法並對邊際成本進行了分析。 -
The content including : ( 1 ) according to the radial structure and multilayer characteristic of distribution network, a novel layer - by - layer backward / forward sweep method id developed. the branch power / voltage loss of the same layer can be parallel computed without relabeling buses and branches, that greatly increases the speed of load flow calculation
其主要內容如下： （ 1 ）針對配電網路的樹狀結構和層次特性，研究了一種新穎的分層前推回代潮流演算法，該演算法不需要網路節點和支路的特殊編號，可以并行計算同一層次所有支路的功率損耗和電壓損耗，從而大幅度提高了潮流的計算速度。 -
Then several popular transmission pricing schemes are investigated. to overcome the deficiencies of the traditional methods using active power share of elements " passing power to judge the extent of use to the device, a new concept regarding share of usage of transmission devices is put forward. the concept is based on loss share but not active power share
針對當前大多數輸電定價的嵌入成本法採用有功份額衡量設備使用程度的不足，本文提出採用有功損耗分量來衡量設備利用份額，這樣更多地考慮了電力系統實際運行情況，物理意義明確，因而容易為市場成員接受。 -
The rule for the determination of the optimal installation places is put forward with the consideration of reactive load changes. the method for reactive power optimal compensation based on the optimal incremental active loss is investigated in details. the impact of reactive power compensation on network voltages is discussed in the following
在無功優化方面，探討了無功補償裝置的最佳安裝地點，並給出了無功負荷變動情況下無功補償裝置最佳安裝地點的選擇原則，深入分析了按無功經濟當量的無功最優補償方法以及補償對配電網電壓的影響。 -
The blast wheet equipped with forward curved vanes delivers more efficent cleaning in minimum power loss and lower noise
帶有曲面葉片的拋丸器具有效率高、噪音低、能耗低的特點。
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