168 Commissioning instructions
Manual Energy Storage Inverter ESI-S
8.9 Step 8: Generate inverter load
Once the system is connected to the supply and is running, the system can start to
charge or discharge the battery. Initially a low value can be set which can then be
gradually increased to the nominal inverter rating. When power quality features are
required, and if a harmonic load is present, the filtering performance can be tested by
selecting a harmonic, e.g. of order 11, and verifying if it is filtered properly.
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For setting up the inverter’s main harmonics selection go to
[/Welcome/Settings/Customer set./Main settings/Main harmonics]
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For setting up the inverter’s auxiliary harmonics selection go to
[/Welcome/Settings/Customer set./Auxiliary settings/Aux. Harmonics]
For more information on the main and auxiliary settings concept and on the setting up
of harmonics, refer to
Section 7.9.2.1
Once the harmonic is selected, analyze the spectrum of the line currents to see if the
selected harmonic is filtered. Refer to
Section 7.8.2
for more information on displaying
measurement results. If the harmonic is not filtered properly (e.g. if it is amplified),
deselect the harmonic and refer to
for troubleshooting the problem.
When harmonic load is not present, the inverter can be tested by generating static
reactive power. Initially a low value can be set which can then be gradually increased to
the nominal inverter rating.
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For setting up the inverter’s main reactive power feature go to
[/Welcome/Settings/Customer set./Main settings/Main PFC/Bal.]
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For setting up the inverter’s auxiliary harmonics selection go to
[/Welcome/Settings/Customer set./Auxiliary settings/Aux. PFC/Bal.]
Set the ‘PFC Type’ item to ‘Static cap.’ and choose the desired value for the item ‘Q
static’.
For more information on the main and auxiliary settings concept, refer to
Section 7.9.2.1
Once the reactive power is selected, analyze the inverter current. Refer to
Section 7.8.2
for more information on displaying measurement results. Refer to
Chapter 11
in case of
problems. Disable the reactive power setting after the test if it is not required by the
user.
8.10 Step 9: Set up the user requirements
If everything goes well at this stage, the user requirements for harmonic filtration and
reactive power compensation/balancing, if required, can now be set up. Both main and
auxiliary settings can be programmed if desired.
By default the inverter is set up to take into consideration the main settings only.
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Select the desired inverter mode
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Select the harmonics and the curve level
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Select the reactive power and balancing settings
