A decentralized control method for series connected PV battery hybrid microgrid

Yiwei Pan, Chenghui Zhang, Shuai Yuan, Alian Chen, Jinwei He

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13 Citationer (Scopus)

Abstract

In this paper, a PV battery hybrid microgrid with series connected microconverters is proposed. A few low voltage (LV) microconverters with different DC sources are series connected to meet with rated output voltage magnitude. A decentralized power control method is developed to realize grid- tied operation. First, droop control is implemented at central controller. The central controller gathers DC source information for each microconverters through low bandwidth communications (LBC), and calculates power demands for each microconverter depending on each DC source status. Second, local controllers follow power demands from the central controller through LBC and regulate power contributed by the corresponding microconverters. Each PV tracks its MPP while batteries compensate power transients caused by intermittent function of PV. Both active and reactive power are well distributed considering MPPT and state-of-charge (SOC) of batteries to ensure sustainable power injected to the grid, and apparent power for each microconverter is approximately the same. Simulated results are provided to verify the effectiveness of the proposed method.
OriginalsprogEngelsk
Titel2017 IEEE Transportation Electrification Conference and Expo, Asia-Pacific, ITEC Asia-Pacific 2017
ForlagIEEE Signal Processing Society
Publikationsdato23 okt. 2017
Artikelnummer8081017
ISBN (Elektronisk)9781538628942
DOI
StatusUdgivet - 23 okt. 2017
Udgivet eksterntJa
Begivenhed2017 IEEE Transportation Electrification Conference and Expo, Asia-Pacific, ITEC Asia-Pacific 2017 - Harbin, Kina
Varighed: 7 aug. 201710 aug. 2017

Konference

Konference2017 IEEE Transportation Electrification Conference and Expo, Asia-Pacific, ITEC Asia-Pacific 2017
Land/OmrådeKina
ByHarbin
Periode07/08/201710/08/2017
Navn2017 IEEE Transportation Electrification Conference and Expo, Asia-Pacific, ITEC Asia-Pacific 2017

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