Using the dynamic simulator, the PEFC propulsion plant performance was analyzed on the following items:

(1) Steady-state operation

(2) Open loop responses

(3) Control system performance

(4) Performance under the following conditions:

(a) Step changes to fuel cell load

(b) Maneuvering

(c) Propeller racing

(d) Bow thruster operation

(e) Crash stop astern.

Validity of the dynamic simulation program was confirmed by the satisfactory results obtained for steady-state operation under item (1) above; the simulation of item (2) served to find out the characteristics of the load change. The foregoing results were utilized in analyzing the control system performance under item (3). The PEFC system incorporating the control system was dynamically simulated covering the operations cited under items (4)(a) through (e) above.

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