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powsybl / powsybl-open-loadflow

An open source loadflow based on PowSyBl
Mozilla Public License 2.0
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Issue with HDVC AC computation when output terminal is disconnected #953

Open vidaldid-rte opened 5 months ago

vidaldid-rte commented 5 months ago

Describe the current behavior

The Pull Request https://github.com/powsybl/powsybl-open-loadflow/pull/957 contains a minimal test that reproduces the issue (ACHvdcTest)

Basically when a line is disconnected from the output terminal of an HVDC station, the HVDC still delivers atcive power to that dandling terminal (and consumes it from upward).

Expected result; No electricity flow to the dandling terminal (no current, no active power, no reactive power).

Describe the expected behavior

No response

Describe the steps

No response

Environment

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Relevant Log Output

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Extra Information

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vidaldid-rte commented 5 months ago

Fixed for VSC HVDC during security analysis and sensi analysis by https://github.com/powsybl/powsybl-open-loadflow/pull/961

Proposal for HVDC in N_situation (disconnect in the IIDM network) in https://github.com/powsybl/powsybl-open-loadflow/pull/965

annetill commented 5 months ago

Still missing: Lccs after contingency or remedial action management.