Synchronization and power sharing for droop-controlled inverters in islanded microgrids

被引:633
|
作者
Simpson-Porco, John W. [1 ]
Doerfler, Florian [1 ]
Bulbo, Francesco [1 ]
机构
[1] Univ Calif Santa Barbara, Ctr Control Dynam Syst & Computat, Santa Barbara, CA 93106 USA
基金
美国国家科学基金会;
关键词
Inverters; Power-system control; Smart power applications; Synchronization; Coupled oscillators; Kuramoto model; Distributed control; PARALLEL-CONNECTED INVERTERS; STABILITY ANALYSIS; CONTROL STRATEGY; REDUCTION; OPERATION; CONSENSUS; KURAMOTO; DESIGN;
D O I
10.1016/j.automatica.2013.05.018
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Motivated by the recent and growing interest in smart grid technology, we study the operation of DC/AC inverters in an inductive microgrid. We show that a network of loads and DC/AC inverters equipped with power-frequency droop controllers can be cast as a Kuramoto model of phase-coupled oscillators. This novel description, together with results from the theory of coupled oscillators, allows us to characterize the behavior of the network of inverters and loads. Specifically, we provide a necessary and sufficient condition for the existence of a synchronized solution that is unique and locally exponentially stable. We present a selection of controller gains leading to a desirable sharing of power among the inverters, and specify the set of loads which can be serviced without violating given actuation constraints. Moreover, we propose a distributed integral controller based on averaging algorithms, which dynamically regulates the system frequency in the presence of a time-varying load. Remarkably, this distributed-averaging integral controller has the additional property that it preserves the power sharing properties of the primary droop controller. Our results hold for any acyclic network topology, and hold without assumptions on identical line admittances or voltage magnitudes. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码:2603 / 2611
页数:9
相关论文
共 50 条
  • [1] Unbalanced Power Sharing for Islanded Droop-Controlled Microgrids
    Jia, Yaoqin
    Li, Daoyang
    Chen, Zhen
    [J]. JOURNAL OF POWER ELECTRONICS, 2019, 19 (01) : 234 - 243
  • [2] Secondary Control for Reactive Power Sharing in Droop-Controlled Islanded MicroGrids
    Micallef, A.
    Apap, M.
    Spiteri-Staines, C.
    Guerrero, J. M.
    [J]. 2012 IEEE INTERNATIONAL SYMPOSIUM ON INDUSTRIAL ELECTRONICS (ISIE), 2012, : 1627 - 1633
  • [3] Local Frequency Restoration for Droop-Controlled Parallel Inverters in Islanded Microgrids
    Rey, Juan M.
    Xavier Rosero, Carlos
    Velasco, Manel
    Marti, Pau
    Miret, Jaume
    Castilla, Miguel
    [J]. IEEE TRANSACTIONS ON ENERGY CONVERSION, 2019, 34 (03) : 1232 - 1241
  • [4] Optimum Reconfiguration of Droop-Controlled Islanded Microgrids
    Abdelaziz, Morad Mohamed Abdelmageed
    Farag, Hany E.
    El-Saadany, Ehab F.
    [J]. IEEE TRANSACTIONS ON POWER SYSTEMS, 2016, 31 (03) : 2144 - 2153
  • [5] Optimal Operation of Droop-Controlled Islanded Microgrids
    Maulik, Avirup
    Das, Debapriya
    [J]. IEEE TRANSACTIONS ON SUSTAINABLE ENERGY, 2018, 9 (03) : 1337 - 1348
  • [6] Improved Transient Power Sharing of Droop Controlled Islanded Microgrids
    Harasis, Salman
    Sozer, Yilmaz
    [J]. 2020 THIRTY-FIFTH ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC 2020), 2020, : 2346 - 2351
  • [7] Black Start Restoration of Islanded Droop-Controlled Microgrids
    Bassey, Ogbonnaya
    Butler-Purry, Karen L.
    [J]. ENERGIES, 2020, 13 (22)
  • [8] Maximum loadability consideration in droop-controlled islanded microgrids optimal power flow
    Abdelaziz, Morad M. A.
    El-Saadany, E. F.
    [J]. ELECTRIC POWER SYSTEMS RESEARCH, 2014, 106 : 168 - 179
  • [9] Stability, Power Sharing, & Distributed Secondary Control in Droop-Controlled Microgrids
    Simpson-Porco, John W.
    Doerfler, Florian
    Bullo, Francesco
    Shafiee, Qobad
    Guerrero, Josep M.
    [J]. 2013 IEEE INTERNATIONAL CONFERENCE ON SMART GRID COMMUNICATIONS (SMARTGRIDCOMM), 2013, : 672 - 677
  • [10] Optimal Control of Droop Controlled Inverters in Islanded Microgrids
    Sahyoun, S.
    Djouadi, S. M.
    Shankar, M.
    [J]. IFAC PAPERSONLINE, 2015, 48 (30): : 363 - 368