Power systems transient stability control based on gps synchronous phasor measurements 同步相量的電力系統(tǒng)暫態(tài)穩(wěn)定預(yù)測(cè)控制
Advance of parallel algorithm for power system transient stability simulation 基于仿真的復(fù)雜武器系統(tǒng)任務(wù)可靠性計(jì)算方法研究
Critical clearing time ( cct ) is one of the most important stable indices in power system transient stability analysis 臨界切除時(shí)間是電力系統(tǒng)穩(wěn)定問(wèn)題分析中最重要的穩(wěn)定指標(biāo)之一。
The digital simulation results show that the controller has good dynamic performance and can improve the system transient stability effectively 數(shù)字仿真結(jié)果表明,所設(shè)計(jì)的控制器具有良好動(dòng)態(tài)品質(zhì),并能有效改善系統(tǒng)的暫態(tài)穩(wěn)定性。
In order to effectively enhance system transient stability, research on how to set reclosing time based-on shortest periodic time is always followed with interest 如何在重合閘裝置最小間歇時(shí)間的基礎(chǔ)上整定重合閘時(shí)間,以最有效的提高系統(tǒng)暫態(tài)穩(wěn)定性方面的研究一直受到關(guān)注。
The existing calculation methods have some disadvantages, which ca n't satisfy the need of the dynamical secure control and system transient stability analysis 但現(xiàn)有計(jì)算方法中存在著計(jì)算速度慢,計(jì)算結(jié)果可信度值得斟酌等問(wèn)題,不能滿足電力系統(tǒng)運(yùn)行、動(dòng)態(tài)安全控制和維持系統(tǒng)暫態(tài)穩(wěn)定的需要。
The digital simulation results show that the controller has good dynamic performance and can enhance the system transient stability obviously . based on the detailed circuit simulation model of hvdc, the tap changer auxiliary 數(shù)字仿真結(jié)果表明,所設(shè)計(jì)的控制器具有良好動(dòng)態(tài)品質(zhì),并能顯著改善系統(tǒng)的暫態(tài)穩(wěn)定性。
Based on the lyapunov stability theory, this paper analyzes thetransient energy function methods for power system transient stability analysis, and considers the quantitative analysis and fast speed as their advantages, but the unreliability as their limitations 基于李雅普諾夫穩(wěn)定理論,對(duì)用于電力系統(tǒng)暫態(tài)穩(wěn)定分析的暫態(tài)能量函數(shù)法進(jìn)行了分析,認(rèn)為可定量分析和快速性是其獨(dú)特優(yōu)勢(shì),不可靠性是其局限性。
Although the transient energy function methods are only used as the auxiliary tool at present for the power system transient stability analysis, how to improve its reliability and apply it to the non-autonomous motion system is still an attractive topic that needs to be deeply researched 盡管目前暫態(tài)能量函數(shù)法只作為電力系統(tǒng)暫態(tài)穩(wěn)定分析的輔助工具,但如何提高它的可靠性并將其應(yīng)用到非自治系統(tǒng)仍是有待深入研究的課題。
Through the testing, the parameters of the two controllers are determined . the simulating results under faulty conditions show that the proposed controllers are effective for improving system transient stability and they make the hvdc system can operate with very weak receiving end ac system 在故障條件下的仿真結(jié)果表明,上述兩種控制器均能有效地提高系統(tǒng)的暫態(tài)穩(wěn)定性,而且能使系統(tǒng)穩(wěn)定運(yùn)行在受端為極弱交流系統(tǒng)的條件下。