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Motor starting dynamics of pump storage

asked 2022-09-29 02:39:04 -0600

ffl gravatar image

Is it possible to simulate the motor starting dynamics when a pump storage is operated in pumping mode? Is there a PSS/E dynamic model that can be used to simulate this phenomenon?

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answered 2022-09-30 09:14:29 -0600

perolofl gravatar image

Motor starting can be simulated in PSSE. See Program Application Guide II, Chapter 21.2.4.

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The motor models presented here are for induction machines. I don't think they can be used to simulate pump storage motor starting.

ffl gravatar imageffl ( 2022-10-13 07:53:50 -0600 )edit

Yes, you are right. Here we are talking about a synchronous motor, i.e. a generator with negative generation. One way to simulate is to have a generator with Pgen=0 in load flow and to start ramping the generator with negative Pmech during the simulation. Note, the generator must be on-line in LF.

perolofl gravatar imageperolofl ( 2022-10-13 09:13:58 -0600 )edit

Thank you. You mentioned negative Pmech. So this means a governor model should also be present? I tried this approach (Pgen = 0, generator online in load flow) and changed the Pgen to a certain negative value during dynamic simulation. I guess there was an error when I did that method.

ffl gravatar imageffl ( 2022-10-13 11:01:37 -0600 )edit

Pgen is not used in dynamics. Use a governor model to change Pmech to negative values during simulation. Change Gref to negative value.

perolofl gravatar imageperolofl ( 2022-10-13 13:38:18 -0600 )edit

Thank you. What governor model can be used where the change of Gref is allowed? I am using WPIDHY but it does not have a Gref parameter.

ffl gravatar imageffl ( 2022-10-15 06:09:19 -0600 )edit

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Asked: 2022-09-29 02:39:04 -0600

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Last updated: Sep 30 '22