电力系统自动化
電力繫統自動化
전력계통자동화
AUTOMATION OF ELECTRIC POWER SYSTEMS
2001年
2期
3-8
,共6页
电力系统%混沌%稳定裕度%多群特性%EEAC
電力繫統%混沌%穩定裕度%多群特性%EEAC
전력계통%혼돈%은정유도%다군특성%EEAC
经典模型下的2机系统在扰动消除后具有哈密顿系统特性。如果它能在首次正向摆动和首次反向摆动中保持有界,则将永远保持周期运动,但该系统在交变激励下则可能发生貌似无规律的混沌运动。对于经典模型下的3机系统,在瞬时扰动结束后,即使不再存在周期性激励,只要系统的时间响应曲线并非理想的两群动态,就会发生混沌现象。推导了经典模型下3机系统发生再同步混沌的条件,同时从理论和仿真两个方面揭示这些现象的本质。
經典模型下的2機繫統在擾動消除後具有哈密頓繫統特性。如果它能在首次正嚮襬動和首次反嚮襬動中保持有界,則將永遠保持週期運動,但該繫統在交變激勵下則可能髮生貌似無規律的混沌運動。對于經典模型下的3機繫統,在瞬時擾動結束後,即使不再存在週期性激勵,隻要繫統的時間響應麯線併非理想的兩群動態,就會髮生混沌現象。推導瞭經典模型下3機繫統髮生再同步混沌的條件,同時從理論和倣真兩箇方麵揭示這些現象的本質。
경전모형하적2궤계통재우동소제후구유합밀돈계통특성。여과타능재수차정향파동화수차반향파동중보지유계,칙장영원보지주기운동,단해계통재교변격려하칙가능발생모사무규률적혼돈운동。대우경전모형하적3궤계통,재순시우동결속후,즉사불재존재주기성격려,지요계통적시간향응곡선병비이상적량군동태,취회발생혼돈현상。추도료경전모형하3궤계통발생재동보혼돈적조건,동시종이론화방진량개방면게시저사현상적본질。
A 2-machine system with the classical model is a Hamilton system. If the system does not lose stability during the first forward swing and the first backward swing, it will be stable for all other swings and keep the periodical motion. However, the 2-machine system may behavior chaotically under a small periodical-like excitation, as well as a multi-machine system without any excitation. The analytical conditions of coming into being chaos are derived for a 3-machine system, and mechanisms of the chaos of multi-machine systems are uncovered. Simulations are also given to confirm this analytical study.