山东电力技术
山東電力技術
산동전력기술
SHANDONG ELECTRIC POWER
2010年
4期
1-4,14
,共5页
鞍结分叉%hopf分叉%仿连续法%动态电压稳定
鞍結分扠%hopf分扠%倣連續法%動態電壓穩定
안결분차%hopf분차%방련속법%동태전압은정
saddle-node bifurcation%hopf bifurcation%imitating continuation method%dynamic voltage stability
基于电力系统动态模型,应用分叉理论提出了一种求解鞍结分叉、hopf分叉点的新方法。该方法的基本原理是,当动态系统参数缓慢变化时,在其平衡点的延拓过程中,首先检测该平衡点流形的局部领域内系统的拓扑性质的改变,确定系统动态稳定性性态,然后应用插值法来确定更高精度要求的参数分叉值,典型电压稳定模型的计算结果表明了此方法的有效性和实用性。
基于電力繫統動態模型,應用分扠理論提齣瞭一種求解鞍結分扠、hopf分扠點的新方法。該方法的基本原理是,噹動態繫統參數緩慢變化時,在其平衡點的延拓過程中,首先檢測該平衡點流形的跼部領域內繫統的拓撲性質的改變,確定繫統動態穩定性性態,然後應用插值法來確定更高精度要求的參數分扠值,典型電壓穩定模型的計算結果錶明瞭此方法的有效性和實用性。
기우전력계통동태모형,응용분차이론제출료일충구해안결분차、hopf분차점적신방법。해방법적기본원리시,당동태계통삼수완만변화시,재기평형점적연탁과정중,수선검측해평형점류형적국부영역내계통적탁복성질적개변,학정계통동태은정성성태,연후응용삽치법래학정경고정도요구적삼수분차치,전형전압은정모형적계산결과표명료차방법적유효성화실용성。
Based on power system dynamic model,an effective method is proposed to solve the saddle-node bifurcation or hopf bifurcation point in this paper.The principle of this method is when the parameter of dynamic system varies slowly,its balance point is extended correspondingly.During this process,the dynamic voltage stability is determined by inspecting the alternation of the system topology character in the local range of balance point,and then the interpolation method is applied to further determine the value of parameter when bifurcation occurs.Numerical results of typical voltage stability model have shown that this method is effective and practical.
