#572 evcharger in combination with windturb_dg: charge state error (not a number),

[nikhilgupta10]

While experimenting with distributed generation and wind turbines we discovered a problem when we attached a wind turbine to a specific triplex meter and using an evcharger object in a house being not directly connected to this triplex meter.

Expected behaviour: It doesn't matter for the evcharger where we put the wind turbine object in the distribution network. No error.

Actual behaviour: evcharger gives an error when we don't attach the wind turbine to the triplex meter of the house containing the evcharger

I would like to attach our model, but I don't see the option to upload files.

Our test model, a very reduced model of the IEEE case:

node 660
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|-> node 630

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[nikhilgupta10]

nikhilgupta10 imported these comments from Sourceforge: According to the Wiki page at https://sourceforge.net/apps/mediawiki/gridlab-d/index.php?title=Generator_Module_Guide, the windturb_dg needs to be connected to a \meter\ or riplex_meter\ object in order to function properly.

Both the meter and triplex_meter objects are used to interface non-powerflow objects, such as modeled loads and distributed generation, with the powerflow module. Should the windturb_dg be unable to detect a meter as an immediate parent, it will instead ttach\ to default values that will not properly update the system.

By themselves, meters and triplex_meters should not appreciably affect the powerflow output, so you should be able to have node->meter/tp_meter->windturb_dg anywhere in the system, using any existing node.

As an aside, windturb_dg only connects to meter in 3.0, while it will connect both to meter and triplex_meter in 2.2 and 2.3.

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According to the Wiki page at https://sourceforge.net/apps/mediawiki/gridlab-d/index.php?title=Generator_Module_Guide, the windturb_dg needs to be connected to a \meter\ or riplex_meter\ object in order to function properly.

This what I tried to show with the above sketch. the windturg_dg is connected to a triplex_meter, otherwise it won't work at all and you get an error message.

To be precise, the evcharger is the only enduse making such problems when adding a windturb_dg.

As I am now able to attach files, I will attach the model soon.

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• attachment [model.zip](/attachment/ticket/572/model.zip) added

Model with windturb_dg and evcharger

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• owner changed from dchassin to jcfuller
• status changed from new to assigned ,
• version changed from 2.2 to 2.3
• milestone changed from Unscheduled to Version 2.3 RC 1

Status?

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• owner changed from jcfuller to andyfisher
• priority changed from minor to validate ,
• attachment _tcdreduced.glm added

updated glm example

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• status changed from assigned to closed
• resolution set to fixed

I ran the file given an it resulted in an error due to the windturb_dg object being attached to a triplex_meter. The windturb_dg can only support a 3-phase connection on meter object not a triplex_meter object. I'm attaching the given glm with the windturb_dg object attached to a meter object above the split-phase transformer. The file ran without giving an error.

Closing the ticket because stated behavior cannot be reproduced.

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