Title: Voltage-based distributed control of autonomous microgrid
Abstract: As the frequency is not directly associated with the active power in autonomous micro grid,a distributed control strategy based on nodal voltage regulation is proposed to balance its active and reactive powers.The controllable active sources regulate the nodal voltage through its output of active power to maintain the long term voltage level.The storage source working in voltage regulation pattern maintains the short term voltage level by injecting active power into grid,while the storage source working in voltage source pattern keeps the magnitude and phase of nodal voltage stable and the reactive power balanced.The clean sources output all the energy absorbed.The voltage set point of storage source is inversely proportional to its energy storage level,which is used to realize the distributed control of its charge and discharge.The effectiveness of unit control based on proposed strategy is verified by simulation.
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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