振动与冲击
振動與遲擊
진동여충격
JOURNAL OF VIBRATION AND SHOCK
2014年
4期
1-6
,共6页
单机无穷大电力系统%主共振%分岔%C-L方法%奇异性分析
單機無窮大電力繫統%主共振%分岔%C-L方法%奇異性分析
단궤무궁대전력계통%주공진%분차%C-L방법%기이성분석
SMIB power system%primary resonance%bifurcation%C-L method%singularity analysis
研究了单机无穷大电力系统在外部周期性负荷扰动作用下的非线性动力学行为：运用多尺度法分析了单机无穷大系统主共振的解析解及其稳定性，根据系统的分岔方程，运用C-L方法分析了主共振响应在不同系统参数下的不同分岔模式，研究表明该系统的不同分岔模式与其运行参数和结构参数有密切联系；数值仿真表明随着激励幅值的变化，该系统具有由倍周期分岔通往混沌直至增幅振荡失步的丰富动力学行为，从而为电力系统中同步发电机的同步运行、振荡失步提供理论指导。
研究瞭單機無窮大電力繫統在外部週期性負荷擾動作用下的非線性動力學行為：運用多呎度法分析瞭單機無窮大繫統主共振的解析解及其穩定性，根據繫統的分岔方程，運用C-L方法分析瞭主共振響應在不同繫統參數下的不同分岔模式，研究錶明該繫統的不同分岔模式與其運行參數和結構參數有密切聯繫；數值倣真錶明隨著激勵幅值的變化，該繫統具有由倍週期分岔通往混沌直至增幅振盪失步的豐富動力學行為，從而為電力繫統中同步髮電機的同步運行、振盪失步提供理論指導。
연구료단궤무궁대전력계통재외부주기성부하우동작용하적비선성동역학행위：운용다척도법분석료단궤무궁대계통주공진적해석해급기은정성，근거계통적분차방정，운용C-L방법분석료주공진향응재불동계통삼수하적불동분차모식，연구표명해계통적불동분차모식여기운행삼수화결구삼수유밀절련계；수치방진표명수착격려폭치적변화，해계통구유유배주기분차통왕혼돈직지증폭진탕실보적봉부동역학행위，종이위전력계통중동보발전궤적동보운행、진탕실보제공이론지도。
The nonlinear dynamic behavior of a single-machine-infinite bus (SMIB)power system with a periodical load disturbance were studied here.The method of multi-scale was used to analyze the system's approximate primary resonance analytical solution and its stability.According to the system's bifurcation equation,different bifurcation models of the primary resonance with different system parameters were analyzed directly by using C-L method.It was shown that the occurrence of different bifurcation models is closely related to the operational parameters and structural parameters of the power system.The numerical simulation results showed that with varying of the excitation amplitude,this system has rich dynamic behaviors characterized with period-doubling bifurcation transferring to chaos and oscillation losing steps. The results provided a theoretical guidance for synchronous operation and oscillation losing steps of a synchronous generator.
