Patent AU-2014265103-B2 (AU)
Title: Control method for preventing auxiliary generator circuit of diesel locomotive from overvoltage
Inventor: GUAN MINGHUA
IPC: H02H7/00
Filed: 2014-10-23
Granted: 2016-05-05
Abstract: (12) flt$*jd*t frdSMEJM$ (19) &I iliRW W f )B (10) WA * 2Ol6 .0615 WO 2015/081768 Al 201546 O11 H (11.06.2015) WIPOI PCT (51) Niijft[* 4*: I [A 1 i'V T it)J 1J O I [I 1 P 51 t, Liaoning H02P 9/30(2006.01) 116022 (CN). **A (SONG, Welsheng), 4 LEI 2i (21) M|f*iU : PCT/CN2014/089315 PT 1iJ<ji di l2[x K h I Of514, Liaoning 116022 (22) MMiP*E: 2014 q l0 l 23 H (23.10.2014) (CN). (74) 4t.A: *A7in -n ff (DALIAN WANYOU (25) *flW A PATENT AGENCY) I tti )ci$1}J1tl U 8F R (26) & #i: r 11 417 9 13 8-19 Liaoning 116021 (CN). 201310660478.2 20134 12 21 5 l (05.12.2013) CN Y): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BT, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, (71) UA: : CU,CZ, DE, DK, DM, DO, DZ, BC, EE, E, ES, Fl, GB, (DALIAN LOCOMOTIVE AND ROLLING STOCK GD, GE, Gil, GM, (iT, IIN, DR, HU, I), IL, IN, IR, IS, CO., ITD. CNR GROUP) ICN/CN]; T g] f-< JP, KE, KG, KN, KP, KR. KZ, LA, LC, LK, LR, LS, LU, ls J 1 CJ [1 [At K 4' 1 SI 4,Liaoning 116022iCN), LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, M, NA, NG, NL, NO, NZ, OM, PA, PE, PG, PIl, PL, PT, QA, (72) 111A Will$ (GUAN, Mighua); | T 'rti K RO, RS. RU, RW, SA, SC, SD, SE, SU, SK, SL, SM, ST, j!7 FJ bin [ X K Of 51 ,Liaoning 116022 (CN). SV, SY, TH, TJ TM, TN, TR, TT, TZ, UA, UG, US, UZ, wIm (TAN. Zhiyonl P g); t 7TSJI giti f I I VC, VN, ZA, ZM, ZW. -j Kill45l , Liaoneing 116022(CN). Ot (JI- ...i ANG, Je); P L3 lP T 117 4 IN Cl [K i N J 51 f'): ARIPO (13W, OH, GM, KE, LR, LS, MW, MZ, NA, -,Liaoning 116022(CN). flij (IF),Mingxisng); RW,SI),SLSTSZ,TZ.UGZM,ZW). X IW (AMAZ. (54) Title: CONTROL METHOD FOR PREVENTING AUXILIARY ELECTRICITY GENERATION CIRCUff OF INTERNAL COMBUSTION LOCOMOTIVE FROM OVER VOLTAGE (54) ill 1 4 P / 'l I lJ X T ff)l lf 1.1 Stant 12 Detroc the PWM duty cycle - .>.4 1-3 Dynamically adjust the reference voltage 14 Sample the actual voltage 1.5 P adjust - 1Limitthe PWM output 11 End /Fig 1 g (57) Abstract: A control method for preventing the auxiliary electricity generation circuit ofa diesel locomotive from over voltage. A reference voltage value is set for the auxiliary electricity generation circuit, an actual voltage value of the auxiliary electricity gen t ration circuit is detected (1.4), the difference between the reference voltage value and the actual voltage value is put into a PI to be adjusted and calculated (1.5), and the calculation result from the PI is used for generating a PWM wave form to drive an auxiliary generator exciting curent. The PWM duty cycle is detected (.2). When the PWM duty cycle is greater than a preset value P%. the reference voltage value is adjusted (1.3), and the PWM output is limited (1.6). With the method, the problem of the over voltage of the locomotive auxiliary electricity generation circuit is solved, which is caused by promoting the rotating speed ofa diesel engine when the diesel engine is rotating in low speed and an air compressor is working. The safety ofan electrical system is ensured, and N die needs for operating a locomotive are met. (57) N W O 2015/081768 A1 |||||||||| 111| | [ 1|||||||||||[|||| |||||||||||||||1|| BY, KG, KZ, RU, Ti. TM), [z ?i (AL, AT, BE, BG $ ga p - - 4 7 CI, )Cy CZ, DF. I)K, E. FS, Fl, FR, OB. (R, IR, lu, IF, IS, IT. LT, LU. LV. MC, MK, MT. NL, NO. PL, PT. - ) fIY',Xfl' YL H4 " P y itt YE fy, RO, RS, SF, SI, SK, SM, TR), OAPI (BF, 1J, CF, CG, 4.17Q'i)) Cl, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, &VWM4.170ll: #9(]2(3) - X-JJAA (011JL)W4.17(i)) -f5YiFiWKhm RPMate IMlf, MRJAI, M M V NIWQL ILI EM Y @M RFemP4mift T* (1.4) ,L 5:: iiAA PI $3 jil!< (15) , Nf. P1i[MIYfthjhPWM MN, ;) #1cJi tj Ri X4h N PWM LIP 'FiMT4 (1.2) , 4ft PWM LtkTfA .t P%lf, NJIfLM *f l (1.3) ,-PTIN PWM JIf1 (1.6) ±$-ilAik l t)-V$PJZL ilh Vl18g, PANET4d M ~ TSRMN