IEEE Electrification Magazine - December 2017 - 36

118
108

To 180

118

120

108

110
100
90
80

80

195
130

150
75
0
-75
-150

65
0
-65
-130
-195

10.8

10.9

11.0

11.1

11.2

11.3

11.4

11.5

11.6

11.7

11.8

Figure 13. The ac load voltage regulation characteristics of the ac/dc hybrid
generation system.

560
Electric Actuation dc Bus Voltage (V)

545
544
Main dc Bus Voltage (V)

Conclusions
In this article, the option of using
an induction generator for the distributed EPS of MEA is explored.
Two new electrical power generation and distribution architectures

Time (s)

543
542
541
540
539
538
537
536
535

ac Load Phase A and B Voltage (V)

130

ac Load Voltage (Vrms)

...

140

commanded to alternate between
drawing 25-kW power from the
APU generator and sending 25-kW
regenerative power back as a
square waveform, from 1.5 s to 3.0 s.
The load of the main dc bus is
changed from 75 to 65 kW at 2.25 s.
The main dc bus and electric actuation dc bus voltages of the system are shown in Figure 14(a) and
(b), respectively. The bidirectional
load toggle on the electric actuation bus at 1.5, 2.0, and 2.5 s did
not affect the voltage regulation
on the main dc bus. The input
power of the main dc bus and
electric actuation dc bus, as well
as the output power of the APU
generator, is presented in Figure 15(a)-(c). Clearly, the APU generator successfully supplied/
absorb ed the highly dynamic
power demand/regeneration from
the electric actuator bus without
disturbing the power delivery to
the main dc bus.

1

1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8
Time (s)
(a)

3

555
550
545
540
535
530
525
520

1

1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8
Time (s)

3

(b)

Figure 14. (a) The main dc bus voltage and (b) the electric actuation dc bus voltage characteristics of the APU for the power generation and
management system.

36

I E E E E l e c t r i f i cati o n M a gaz ine / DECEMBER 2017



Table of Contents for the Digital Edition of IEEE Electrification Magazine - December 2017

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