# \#algebraic-loops

**URL:** https://forum.plexim.com/tag/algebraic-loops/570.md

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## [Solving algebraic loop due to parasitic Gate Source Capacitance in 3-LVL-ANPC under different modulation strategies](https://forum.plexim.com/t/solving-algebraic-loop-due-to-parasitic-gate-source-capacitance-in-3-lvl-anpc-under-different-modulation-strategies/1312)

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**Author:** [@THK](https://forum.plexim.com/u/THK)\
**Replies:** 1\
**Last updated:** [February 6, 2024, 11:33am UTC](https://forum.plexim.com/t/solving-algebraic-loop-due-to-parasitic-gate-source-capacitance-in-3-lvl-anpc-under-different-modulation-strategies/1312 "2024-02-06T11:33:40Z")

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Hello, I would like to investigate different modulation strategies for a 3-LVL-ANPC-SiC topology under different operating points in terms of overall efficiency and power dissipation (temperature) per switch. To additi…

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## [Algebraic loop with opamps](https://forum.plexim.com/t/algebraic-loop-with-opamps/1294)

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**Author:** [@Massimo](https://forum.plexim.com/u/Massimo)\
**Replies:** 1\
**Last updated:** [December 5, 2023, 3:24pm UTC](https://forum.plexim.com/t/algebraic-loop-with-opamps/1294 "2023-12-05T15:24:02Z")

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Hello, I am new in PLECS and I am doing some tests with opamps. My question is about the equivalent implementation of opamp by means of Voltage Controlled Voltage Source, since it leads me to “Algebraic loop error”. Fo…

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## [Simulation ERROR: Could not solve the algebraic loop](https://forum.plexim.com/t/simulation-error-could-not-solve-the-algebraic-loop/1073)

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**Author:** [@adeel1](https://forum.plexim.com/u/adeel1)\
**Replies:** 1\
**Last updated:** [November 3, 2021, 9:28am UTC](https://forum.plexim.com/t/simulation-error-could-not-solve-the-algebraic-loop/1073 "2021-11-03T09:28:56Z")

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I am trying to simulate a GSC based on simple 3 controlled voltage sources. Basically, I have implemented PQ-controller. When I try to simulate it produces an error; At t=1.09623965334250585e-22: Could not solve the alg…