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Energy Reports, 2023 For a conventional droop-controlled islanded microgrid, the poor reactive power-sharing and drop of bus voltage and frequency caused by line impedance mismatch and droop characteristics are inevitable.
Shuaicheng Hou, Jiawei Chen, Gang Chen
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Accurate Active and Reactive Power Sharing Based on a Modified Droop Control Method for Islanded Microgrids [PDF]
Sensors, 2023 When multiple paralleled distributed generation (DG) units operate in an islanded microgrid, accurate power sharing of each DG unit cannot be achieved with a conventional droop control strategy due to mismatched feeder impedance.
Zhi Zhang +3 more
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Reactive power sharing in microgrid using virtual voltage
International Journal of Electrical and Computer Engineering (IJECE), 2021 The traditional droop control strategy has been applied previously in microgrids (MGs) to share accurately the active power. However, in some cases the result obtained when sharing reactive power is not the best, because of the parameters related to the distances from distributed generators (DGs) to the loads and the power variations.
Eder A. Molina-Viloria +2 more
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Proportional reactive power sharing for islanded microgrids [PDF]
2016 IEEE 11th Conference on Industrial Electronics and Applications (ICIEA), 2016 In this paper, droop-based automatic control schemes are presented to control parallel inverter-interfaced distributed generators (DG) in a way that proportional reactive power sharing is possible in islanded microgrids under different structures. This paper modifies the conventional reactive power-voltage (Q-V) droop control strategy used in inductive
Azim, M. I. +4 more
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A finite-time reactive power sharing approach for microgrids
Energy Reports, 2020 Microgrid (MG) usually adopts droop control to stabilize its frequency and voltage. However, because the line impedance between distributed generators (DGs) is not proportional, the power sharing cannot be achieved.
Jiancheng Zhang +3 more
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Data-Driven Distributed Reactive Power Sharing in Microgrids [PDF]
2019 IEEE 58th Conference on Decision and Control (CDC), 2019 In this paper, reactive power sharing for Photovoltaic (PV) units in islanded microgrids has been formulated as a robust control design problem and is solved using convex optimization method. In addition to reactive power sharing, the disturbance rejection for voltage and active power have been formulated using infinity-norm constraints on the ...
Seyed Sohail Madani, Alireza Karimi
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Accurate Reactive Power Sharing Strategy for Droop-Based Islanded AC Microgrids [PDF]
IEEE Transactions on Industrial Electronics, 2023 In islanded AC microgrids, the mismatched impedances of the interfacing feeders between the inverters and the load bus cause poor reactive power-sharing when the conventional frequency and voltage droop control technique is employed. Such operation endangers the whole microgrid reliability as it may lead to overloading certain inverters and ...
Nabil Mohammed +3 more
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Reactive Power Management in Islanded Microgrid—Proportional Power Sharing in Hierarchical Droop Control [PDF]
IEEE Transactions on Smart Grid, 2015 A microgrid (MG) is a local energy system consisting a number of energy sources (e.g. wind turbine or solar panels among others), energy storage units and loads that operate connected to the main electrical grid or autonomously. MGs provide flexibility, reduce the main electricity grid dependence and contribute to change the large centralized ...
Adam Milczarek +2 more
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Adaptive virtual impedance control strategy based on IWOA-fuzzy PID and its application to reactive power sharing in islanded microgrids [PDF]
Scientific ReportsAccurate reactive power sharing in islanded microgrids is often compromised by resistive line impedances and parameter mismatches, causing power coupling and uneven distribution.
Yongxin Hou
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Adaptive Virtual Impedance Droop Control of Parallel Inverters for Islanded Microgrids [PDF]
SensorsThe droop control strategy, known for its communication-free nature, is widely adopted for the parallel operation of inverter units. However, in microgrids, mismatches in line impedances and various measurement inaccuracies often lead to imbalanced ...
Hongzhi Yang +7 more
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