Author Archive

Where do you start with a PLL design for grid connect

February 20, 2024 by Hamish Laird

I was having a conversation with an engineer about PLL design for grid connection. They were asking where to start? And I surprised them by talking about the grid coupling filter and what was the expected (power) angle jump over time between the grid and the converter when there was a grid fault. And for […]

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Gate drives, Gate drives and Gate drives

February 12, 2024 by Hamish Laird

I was in a meeting last night where we were discussing a gate drive issue. The gate drive was causing a trip at a certain current level and the solution that we were talking about was a simplification. It involved removing the clever silicon solution and replacing it with a simpler optically isolated bespoke gate […]

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