balance transformer 中文意思是什麼

balance transformer 解釋
平衡變壓器
  • balance : n 1 〈常作 a pair of balances〉 天平，秤。2 平衡，均衡，對稱；抵消；比較，對照，對比。3 （鐘表的...
  • transformer : n. 使變化的人[東西]；【電學】變壓器；變換器；互感器。 polarity of transformer 變壓器繞線方向。
  1. The differential transformer secondary windings are connected in subtractive series so that the output is zero at balance.

    差功變壓器的次級線圈接成反向串聯，以便在平衡時輸出為零。
  2. The negative sequence current of impedance - matching balance transformer

    阻抗匹配平衡變壓器的負序電流
  3. In at power supply system some transformers with special connection mode, such as scott transformer, anti - scott transformer, balance transformer and so on, are usual used. the voltage ratio is one of important parameters of transformer

    採用斯科特變壓器、平衡變壓器等特殊接線方式變壓器作為主變壓器，能有效抑制負序電流，減少有功損耗和電壓損失，提高牽引機車的過負載能力。
  4. Because the harmonics in tangyin substation are primarily from electric traction loads, this paper gives the structures of several main locomotive models and general harmonics they produce. the harmonics produced by electric locomotive have a characteristic that their range and phase are both dispersive. this paper also analyzes the impedance - matching balance transformer ' s structure and harmonics injected into the power system at its primary side, and sums up the characteristics of the harmonics from electric traction loads in the tangyin traction substation

    鑒于湯陰變電站的諧波主要來自電力牽引負荷，本文列舉了電力機車幾種主要車型的結構以及它們產生諧波的概況，得出了電力機車的各次諧波電流幅值和相角具有較大分散性的特點。針對湯陰牽引變電站的牽引變壓器，分析了阻抗匹配平衡變壓器的結構及其高壓側注入電網的諧波，推導了有關計算公式。通過理論分析並結合湯牽線的實測諧波數據，歸納了電力牽引負荷注入湯陰變電站的諧波的特點。
  5. The simulation models of balance traction transformer with two connection symbols are established. the operating state of transformer with symmetric and unsymmetric loads in secondary side is analyzed

    摘要構建了兩種聯結平衡牽引變壓器的模擬模型，分析了二次側對稱和非對稱負載時變壓器的運行狀態。
  6. Through analyzing the mathematical model of two winding transformer, the effect after on - load tap changing on voltage and reactive power balance at each side, effect of shunt capacitor compensation on voltage and reactive power balance in substation the relation between transformer tap adjusting and shunt capacitor switching in practical grid operation were discussed

    摘要通過對兩卷變壓器的數學模型進行分析，討論了兩卷變壓器抽頭調整后，變電站各側電壓及無功功率的變化；無功補償對變電站各側電壓及無功功率的影響；實際電網生產運行中，無功補償與變壓器抽頭的配合調整。
  7. According to the characteristic of nine - area diagram of substation vol / var coordinated control, this system gives the defination of fuzzy sets and the degree of membership of input / output variables, and designs corresponding control rules. the results of simulation demonstrate the system can satisfy the constrains of the day - adjusting times of the switching of on - load transformer and paralleled compensation capacitors, and ensure voltage quality, reactive power basical balance. considering the var requirement in different load time period and the control demand in load saltation, a improved control scheme is provided. the results of simulation show the improved scheme can meet the demand of vol / var in different load time period, protect the wrong operation when either voltage or reactive power appears saltation, and decrease the times of regulation of the switching of on - load transformer and paralleled compensation capacitors finally, a background software module of substation vol / var coordinated control is designed, based on the supervisory control and data acquisition system of substation

    模擬結果證明該系統能在各種負荷條件下確保電壓合格和無功基本平衡，且能滿足變電站對有載調壓變壓器分接頭日調節次數和並聯補償電容器組的日投切次數的限制。通過考慮不同負荷時段對無功功率的需求和負荷突變情況下的控制要求，對上述模糊控制策略進行了改進，模擬結果證明改進后的控制策略能滿足不同負荷時段對電壓和無功的要求、抑制電壓或無功突變情況下的誤動作，且有效地減少了有載調壓變壓器分接頭和並聯補償電容器組的調節次數。最後基於變電站scada系統設計了一后臺電壓無功綜合控制軟體模塊。
  8. Serial - parallel combined two - transistor forward converter is presented for high input voltage and high power application, and the operation principle of the topology is analyzed in this paper. all switches are turned off with zero voltage switching, and the two switches of them are turned on with zero current and zero voltage switching. the difference of input capacitances, conducting voltage drop of switches, duty cycle and windings of the transformer of the combined converter influences the voltage balance of the input capacitors

    本文介紹了雙管正激變換器的兩種穩定工作狀態，詳細分析了帶lcd無損箝位網路的並?並組合式雙管正激變換器的工作原理，該組合式變換器中的開關管實現了零電壓關斷，並介紹了該電路拓撲的特點和lcd網路參數設計，採用pspice軟體進行了模擬和分析，最後，研製出一臺2 . 3kw樣機。
  9. Principally, when the winding - connection scheme is adopted to add a set of auxiliary windings on the two - phase side of a balance transformer, we can get a three - phase to four - phase transformer

    原則上，在平衡變壓器的兩相側採用增加一套副繞組的雙重接線方案，便可得到三相變四相電力變壓器。
  10. The rbf network has a better performance, and better forecasting accuracy. then mathematical model of substation voltage / var control is constructed, the squares minimization of voltage differences as target, also considering requirement of voltage and power balance, taking it into consideration that the magnitude constraint of transformer ratio and compensating capacitor, also that constraint of operation times of one day transformer tap and capacitor switch

    因此提高了學習性能，具有較好的預測精度。然後，建立變電站電壓無功控制的數學模型，考慮電壓的調壓要求和無功功率平衡，計及變壓器變比和並聯補償電容的上下限約束，變壓器分接頭和電容器允許的日調節次數的限制，以電壓偏差的平方和最小為目標函數。
  11. But in fact, there are many windings on each leg of a balance transformer, and the winding impedance relationships that the balance condition requires are strict, so it is difficult to design and make such transformers. if adopting the connection scheme of dual windings, the windings on single leg will increase almost doubly. it is more difficult to satisfy the balance condition and probably it will confront conflict when arranging these windings, so parameters of various phases can not be balanced

    事實上由於平衡變壓器單柱繞組數目較多，若採用雙重接線方案，則單柱繞組數目增加近一倍，滿足平衡條件十分困難，甚至使得繞組在空間上的布置產生矛盾，無法達到各相參數平衡的要求，而「四相四心柱「結構的三相變四相電力變壓器較好的解決了這一難題。
  12. It is the simplest form among transformers in this kind. for evaluating the relationship between the error of winding impedance and the performance of the three - phase to four - phase power transformer, this paper uses “ matlab ” as a digital simulation platform to exam the mathematic model and analyze the balance condition as well as

    因此，本文對不同排列方式，不同回數四相輸電線路的電場、磁場、無線電干擾和可聞噪聲進行了詳細的分析和計算，並把它們與三相輸電線路相應的電磁場參數進行了全面比較。
  13. Firstly, design the software phase - closed loops ; secondly, realize the double closed loops control of the instantaneous value and the virtual value. furthermore, the dynamic flux imbalance of the output transformer caused by ordinary pi arithmetic is analyzed in detail. a new solution for flux balance by sampling the instantaneous primary current of the output transformer and introducing the on - line calculated bias current component into the voltage regulation arithmetic is presented

    系統軟體實現了ups的各個功能模塊，首先設計了軟體鎖相環；然後實現了輸出電壓瞬時值和有效值雙閉環反饋控制；並且在深入分析基本數字pi演算法所引起的輸出變壓器動態偏磁問題的基礎上，提出了一種改進演算法，實時消除了變壓器的偏磁。
  14. The study shows that this control approach can overcome those shortages of the methods which are adopted to control voltage and reactive power in substation nowadays, it can hold the voltage level in the regular bound and maintain the balance of reactive power in substation to the greatest extent, and it have the ability to seek the best solution. adopting this methods, the switching times of loaded taps and capacitors can be decreased efficiently and advance the running life - span of the transformer and capacitors and improve the economy benefits. this control approach is a advanced way ii and it is worth to study more and utilize

    利用模糊神經網路對較好地實現對變電站的電壓、無功自動控制，能克服了目前在變電站電壓無功控制中普遍運用的分區方法存在的不足之處，不但可保持變電站電壓在合格的范圍內，盡量維持無功功率平衡，而且具有較好的尋優能力，有效減少變壓器有載調壓開關的切換次數和電容器組的投切次數，提高了變壓器和電容器的運行壽命，提高了經濟效益，是一種值得進一步探索和運用的較為先進的方法。
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