Control of Power Factor Correcting Boost Converter Supplying an Inverter for an Asynchronus Motor
Authors
Jørgensen, Lasse Ravnborg ; Damgaard, René Forsberg
Term
4. term
Education
Publication year
2015
Submitted on
2015-06-03
Pages
66
Abstract
Dette projekt undersøger styring af en effektfaktorkorrigerende (PFC) boost‑konverter placeret før en inverter, så inverteren kan forsynes fra enten elnet (AC) eller en DC‑kilde i stedet for kun DC. Der udvikles en dynamisk model af boost‑konverteren, og en feedforward‑baseret PFC‑regulator udformes. Løsningen simuleres og implementeres først med en ohmsk last og efterfølgende med en asynkron AC‑motor, der driver en ventilator tiltænkt brug i fjerkræfarme. Inverteren anvender Space Vector Modulation (SVM), og alle controllere implementeres på en DSP. Tests udføres på et Eltronic inverterboard og et DACS ventilationssystem. En samlet model, der omfatter boost‑konverter, inverter, motor og ventilator, giver gode resultater i simulering, mens den fysiske implementering leverer skuffende resultater, hvilket peger på udfordringer i overgangen fra model til praksis.
This project investigates control of a power factor correcting (PFC) boost converter placed ahead of an inverter, enabling the inverter to be supplied from either the AC grid or a DC source instead of DC only. A dynamic model of the boost converter is developed, and a feedforward‑based PFC controller is designed. The solution is simulated and implemented first with a resistive load and then with an asynchronous AC motor driving a fan intended for poultry farms. The inverter uses Space Vector Modulation (SVM), and all controllers are implemented on a DSP. Tests are conducted on an Eltronic inverter board and a DACS ventilation system. A complete model including the boost converter, inverter, motor, and fan performs well in simulation, whereas the physical implementation yields poor results, highlighting challenges in translating the design from simulation to hardware.
[This summary has been generated with the help of AI directly from the project (PDF)]
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