CUED Publications database

Cost-Effective Grid-Connected Inverter for a Microcombined Heat and Power System

Robertson, PA and Du, R (2017) Cost-Effective Grid-Connected Inverter for a Microcombined Heat and Power System. IEEE Transactions on Industrial Electronics, PP. -. ISSN 0278-0046 (Unpublished)

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This paper proposes a novel, cost effective grid-connected inverter for a domestic micro combined heat and power (micro-CHP) system. A high frequency (~12,000 rpm), high voltage (~425 Vdc) brushless DC (BLDC) machine is used as the generator. The output of the generator is injected into the grid through a novel grid-connected inverter, utilizing a digital algorithm for the implementation of a constant frequency hysteresis current control. This allows a simplified output filter with smaller components to be employed. A grid synchronization method has also been designed, based on a low-pass filter and a micro-controller to optimize/tune the output power factor. The proposed method is successfully applied to a 500 W, 230 V, 50 Hz grid-connected voltage source inverter (VSI) prototype, where the output of the VSI has been demonstrated to comply with the operating regulations of the domestic distributed power generation systems.

Item Type: Article
Divisions: Div B > Photonics
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:11
Last Modified: 10 Apr 2021 00:59
DOI: 10.1109/TIE.2017.2677340