Cinergia GE+ - Constant Voltage (CV)

GE+ ACDC Installation and operation manual v11
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Before operating the equipment, check that all LIMITS from the equipment are
correct. Please take care that CNG equipment are bidirectional, this means that
the equipment can consume or inject current. The equipment can operate as a
source or as a load.
5.3.1. Constant Voltage (CV)
In AC mode, this mode allows the user to define and generate a specific grid whereas in DC mode
the converter delivers a constant voltage.
V. Parameters and limits (AC mode)
In CV mode, the user can modify the value of the following emulated grid parameters as long as
it is within the specified range:
Parameter
Allowed range
of values
Grid frequency 10-400 Hz
V
peak
, phase-neutral 400V
V
rms
, ph-n 0-277Vrms
V
rms
, max, ph-ph 480Vrms
Grid virtual resistance 0 - 1 Ω
Fundamental harmonic angle (respect the 120°
delay of each phase)
0 -360 °
Fundamental harmonic voltage (phase-N) 0-277 Vrms
Harmonic control
The bandwidth of the harmonic control is fixed to 800Hz. Depending on the fundamental
frequency the high harmonics must be disabled because exceed the 800Hz (p.e. 15
th
harmonic
of 60Hz fundamental grid becomes 900Hz).
The enabled harmonic controls follow the control of the cut off frequency, which is configurable
and has a maximum of 770Hz and a minimum of 70Hz.
Harmonic set point
It should be noted that no V
peak
of any phase can exceed the 400 V, i.e., after adding
harmonics to the fundamental voltage, the resultant wave cannot exceed 400 V
peak
.
The maximum set point value can see below:
Setpoint
Range
Fundamental
0 to 277V
Harmonics from 3 to 9
-
1 to 1
Percentage from the
fundamental (1 means
100%)
Harmonic 11
-
0.5 to 0.5
Harmonics 13 and 15
-
0.2 to 0.2