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مولد اضطراری واحد قدرت
In Figure 3, thore are Sour power chcnnel as the power generating consists of four alternators: left and right variable frequency generator (LG, RG), an auxiliary power unit geneeator (APUG) used as backup) when LG and RG fail, and an emergency power unit-ram ais turOine generator (RATG) which generates power for essential three-phase alternating current bus (AC ESS BUTS) used as backup when
LG, RG, and APUG fail.
, and to prevent over-current from causing unintended damage to the system componentt, electromechanioal current relays, contactors, and breakers Eire used Bo route the power from the power sourc es ta the buses by redundancy and reconfiguration. )n addition, essential single-phese AC bus (ESS BUS 1 PHASE) is used to support the operation of the single-phese emergency electrical equipment, and a tit bus APUG BUS is used to disttibuting the power from one chennel to olher power channels.
In this part, we apply the new method to analyze theAC subsystem of Figure 3, the components which contain are; LG, LGB, LG BUS, BTB1, APUG BUS, APU GB, APUG, BTB2, RG BUS, RGB, RGr BTB3, AC ESS BUS, BTB4, RATG, RATGB, BTB5, INV, and ESS BUS 1 PHASE.
Aupper (1/h) BTB/GB Current Relay, Contactor, and Breaker 1.33 X 10-5 1.0 x 10-5 9.9 X 10-5 Generator AC Power Source 5.56 X 10-5 1.0 x 10-5 9.9 X 10-5 AC /lit Direct power distribution to AC loads 5.00 X 10-6 1.0 x 10-6 9.9 X 10-6 INV DC-to-AC Inversion 9.09 X 10-5 1.0 x 10-5 9.9 X 10-5 In the AC subsystem of Figure 3, Generator includes LG, APUG, RG, RATG; AC BUS includes LG BUS, RG BUS;, APUG BUS, AC ESS BUS, ESS BUS 1 PHASE; BTB/GB includes LGB, RGB, APUGB, BTB1~BTB4.
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