117828623

29

Ocena dopuszczalnego czasu .rwania

OUEHKA BPEKEHH nPO,UO JBKHTEJIbH OC TH ABAPKH jUIH IIPOTHBABAPHJłHOii APTOMATHKH

P e s b u e

CiaraJi aaHEłiaeTca npo3:;9MaTHXoa np^KfirtecKoro hchojiłsob&hhh BToporo ue-roga JŁaojBoia ajui onpeAezBHsm HurtpoiłKH npoTHBSBapHttHott aBTouaTHKH.

ABTOpU OCpaiHZH BHHH&HBr KR njLHKHHe y^Bra HBHOIIOZBOHOCTH CHfUCpOHHUZ iia-mKH Ha KpETapnazłiHyB BejiBHHHHy _vy.iXQHH JIsnyHOBa h oOjiaciŁ ycTottHHBooTH.

npeAzarasTOa ynpomenHB npoaexypu onpeAejieiois. Aonycimioro bpbmbhh noaper-Abhhh. AoKaaaHO, u*o TanoB ynpoaBHHe iiokho ogasaiB npa u a bbcthou KpatHnec-KOM CKOZUteBOOI H KpHTHHBOKOB BBZHHHHB (JyHKUSH JlHIiyHOBa.

Hboóioahwo noA^epKHyzb, hto HcnosbBOBaaae ubtoas noaBojwei npocTo h Ouoipo onpBjojht ynouHHyToa BpeuH _t KOTopoe peaaeT o AKHSMHHecKofł yctoflHH-

BOOTH OHHZPOEHUZ HaiDHH, 0B9 HBOfilOAHMOCTH HHTB TpHpO BSHHH ypaBHeHHfl MOASJIH H CHliy JLfIUHOHHHX HCIIHTaHHft.

ESTIMATION OF THE CRITICAL CLEARING TIME FOR PREYENT AUTOMATIC OF POWER CONTROL SYSTEMS

S u a n a r y

In thls paper reaulta of the practical appllcatlon of the aecond Lyaponov method for estlnatlon of the crltlcal clearing tlne has been presented.

Influence of the aalfent pole on the stable reglons and on the crltlcal ▼alue of the Lyaponow functlon is dlscussed. Modlflcatlon of ewaluatlon procedura for detemlnation of crltlcal clearing tlne has been proposed to reduce ja tlne of calculatlons.g

The authora hare ^denonstrated that lt ls posslble on the baae of knowle-ge of crltlcal slip (for whlch the synchronous nachine falls out of aynchro-nlza) and of crltlcal value cf Lyaponow functlon.

Appllcatlon of thls nethod leads to qulck and slnple eraluatlon of crltlcal clearlhg tlne (thls tlne corresponds to the crltlcal case, when the synchronous nachine ls able to nalntaln the dynanlc stablllty) wlthout Inte-gratlen of equatlons of nodel and wlthout sinulatlon research.