small signal stability 中文意思是什麼
small signal stability
解釋
低壓艦載-
The method of hvdc small signal modulation is applied to enhance the small signal stability of the system ; the results are investigated based on the prony method
採用prony方法，研究了直流小信號調制對提高低頻振蕩阻尼的作用。 -
Meanwhile, small signal stability of the system with associated feedback control is similar to that with all state variable feedback control
從特徵值比較看，關聯測量分散勵磁控制下的小干擾穩定性可以接近全狀態量反饋控制時的性能。 -
This paper mainly describes the small signal model and properties of the dc / dc converter, the optimum control model of the dc / ac inverter and analyses the stability and dynamic characteristics of the system. the experimental results show that the static inverter achieves high performance target
本文主要對6kva電源變換器系統進行了分析，包括前級dc dc變換器的小信號特性，后級dc ac逆變器的最優控制模型，分析了系統的穩定性和動態性能，模擬和實驗表明該電源變換器具有高的性能指標。 -
Based on netomac, a software package for power system simulation, the model and algorithm of pre - dispatch schedule in generation markets, excitation system parameter setting, and power system small signal stability anaylsis are studied in this thesis. the main work is as follows : a model of pre - dispatch schedule is proposed, whose target is to minimize the market purchasing price ( mpp ) in the whole pre - dispatch period. then according to the characteristics of pre - dispatch schedule, the model of pre - dispatch schedule is simplified to minimize the mpp in each pre - dispatch time, and a three - step algorithm of pre - dispatch schedule is designed : dealing with the optimal problem in the whole period of pre - dispatch with static planning method, solving the problem of combination of machines with pr1 method, resolving problem of optimal power flow ( opf ) with modified powell method
本文基於netomac模擬軟體，以發電市場預調度計劃模型及演算法、勵磁系統參數整定和電力系統小擾動穩定性分析為研究內容，主要做了以下工作：建立了以整個預調度計劃周期內的市場購電價格最小為目標的發電市場預調度計劃模型，並根據預調度計劃問題狀態數多、變量多、混合整數、非解析的特點，將預調度計劃模型的目標函數簡化為各時段的市場清算電價最小，設計了三段式預調度演算法：用靜態規劃法求解整個預調度計劃周期內的優化問題；用優先級法求解機組組合問題；用改進的powell法求解最優潮流問題。 -
Applying normal form method, conventional eigenvalue calculation and prony analysis, small signal stability and time domain simulation can be combined efficiently. the proposed method can get nonlinear information which never obtained by past techniques, so it shows a new way for analyze oscillation problems in interconnected power systems
通過正規形方法、小信號穩定特徵值計算技術、時域模擬、 prony分析的有機結合，達到小擾動和大擾動后低頻振蕩穩定性分析的統一，為互聯系統低頻振蕩分析開辟了新的思路。 -
A powerful tool of dynamical system analysis named normal form method is presented in this dissertation, and then it was used to analyze oscillation phenomena in interconnected power grids. using nonlinear coordinate transformation of normal forms, a fully described power system can be converted to an equivalent reduced order model, which can still use the conventional modal analysis of small signal stability problems
論文將動力系統非線性分析的正規形理論應用於互聯系統低頻振蕩分析中，利用正規形方法的非線性坐標變換，將高階電力系統轉化為等價的低階系統，在保留非線性信息的同時，使其仍然可以使用常規小信號穩定研究的模式分析方法。 -
Through small signal stability analysis and transient stability simulation in a typical hvdc system ( epri 36 ), the results show that some characters of closed - loop system on the basis of associated feedback control, such as angle stability, voltage accuracy and small signal stability, are better than those of avr + pss
通過一個典型交直流電力系統（ epri - 36系統）的小干擾穩定計算和暫態模擬表明，關聯測量分散勵磁控制下的閉環系統在功角穩定性、電壓調節精度以及小干擾穩定性方面均優于常規勵磁附加pss 。 -
Based on the compensated open - loop transfer function, the system stability at the small - signal perturbation and the system response to step signal are analyzed
根據加入補償網路后的開環傳遞函數，分析了系統在小信號擾動時的穩定情況及系統對階躍信號的跟蹤能力。 -
Eigenvalue sensitivity analysis has been widely used in power system dynamic studies and the controller designs, becoming an indispensable tool in power system small signal stability analysis
摘要特徵值靈敏度分析已廣泛應用於對電力系統中控制元件的選址和控制系統的參數設計，特徵值靈敏度已成為電力系統小干擾穩定控制設計時一個不可缺少的重要工具。 -
At light loads, the architecture allows the chip to “ skip ” cycles to reduce power dissipation. in the circuit design, the basic principle and small signal model of the boost power stage are given at first, and then the stability and small signal model of the control loop are also analyzed, finally, the whole chip architecture and sub - block parameters are presented according to the application requirements
在電路設計中，首先闡述了升壓型直流轉換器的功率輸出級的拓撲結構、基本原理、小信號模型，然後分析了電流模式控制迴路的穩定性及小信號模型，最後根據應用要求進行了電路的總體架構設計，完成了每個子電路的各種參數的分析、計算。 -
Through analyzing the phenomenon of the pseudo complex value in the block - decoupling method, the pseudo complex value is considered as the result of eigenvalue variation because of the system being decoupled forcedly, but this phenomenon has no effect on the result of the small signal stability
對模糊分塊解耦法可能出現的偽復根現象進行分析，認為偽復根是將原本存在機電耦合的子系統強行解耦導致特徵值「變異」的一種現象，一般不會影響小擾動穩定分析的結果。 -
Based on the review and present tendency analysis for small signal stability research, in this thesis, the reduced - order analysis method for small signal stability of multi - machine power system using detail model is researched
本文在回顧分析電力系統小擾動穩定研究的發展歷程及其研究現狀的基礎上，開展了基於詳細模型的多機電力系統小擾動穩定降階分析方法的研究工作。 -
5 ) this dissertation presents new predictive models for the transient stability and small signal stability based on support vector machine theory that can solve the problems such as finite samples. a new method of feature selection and sample condensation is proposed to build predictive model which improves the practicability of the model greatly
5 ）論文首次利用基於小樣本技術的支持向量機理論，設計了新的暫態穩定、小擾動穩定特徵值預測模型，提出了新的適合預測模型構建的特徵選擇、數據采樣策略，提高了模型的實用性。 -
This paper carry out power system post - stability analysis with eurostag. this paper determine the state after low frequency oscillation according to the relation between oscillation frequency of low frequency oscillation and eigen value of small signal analysis, which is derived from a great deal of simulation projects. cai xiaoling ( power system and its automation ) directed by prof
利用eurostag進行電力系統后穩定分析，針對低頻振蕩引起的后穩定問題，通過大量模擬研究了小擾動特徵值分析結果和大擾動振蕩頻率之間的關系，並據此判斷系統發生低頻振蕩失穩后的狀態，為將來進行后穩定后續分析打好基礎。 -
The interactions of input filters with dc - dc regulators are investigated as well. the widely used small - signal averaged model does not provide complete understanding of the stability
本文還分析了帶有輸入濾波器的系統穩定性問題，廣泛使用的小信號平均模型還存在一定的缺陷。 -
Although eigenvalue method is the traditional method for power system small signal stability analysis, its application is limited by the problem of large quantities of computation when analyzing bulk power systems
傳統的電力系統小擾動穩定性分析法是特徵值法，但分析大規模電力系統時遇到的計算量過大問題限制了它的應用。 -
The auhor develops the user - defined dynamic phasor models of all the above devices with the user - defined function of power system analysis software package ( psasp ) of epri, china, including traditional power components such as generator, transmission line, transformef, fixed series capacitor ( fsc ), grounding reactor, etc., and new type power devices including thyristors like tcsc, hvdc, svc and smcom, thus realizes time - domain simulation for sso large signal stability analysis and realizes sso small signal stability analysis further through the linearization platform of psasp
作者利用電力系統分析綜合程序（ psasp ）的自定義建模功能，建立了電力系統基本元件（如發電機、輸電線、電容器、接地電抗器等）及含晶閘管等電力電子元件的新型電力系統裝置（ tcsc 、 svc 、 hvdc及statcom ）的動態相量自定義模型，從而通過psasp實現了sso問題的大幹擾穩定的時域模擬計算，並進而通過該程序的小干擾線性化平臺實現了sso問題的小干擾穩定分析。 -
The basic principle, system structure is analyzed and studied intently. the small - signal models for the switching converters based on current mode control are deducted. system stability and the principle of slope compensation which is used to improve system stability also discussed
本文首先設計了一款基於電流控制模式的pwm升壓控制晶元，並重點分析了它的工作原理、系統結構，建立了系統的小信號模型，分析了系統的穩定性以及採用斜率補償方法改善系統穩定性的原理，並模擬驗證了斜率補償的作用。
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