An optimal coordination control strategy of micro-grid inverter and energy storage based on variable virtual inertia and damping of vsg
| Autor: | Li Ming, Mao Fubin, Haizhen Xu, Xing Zhang, Fang Liu |
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| Rok vydání: | 2017 |
| Předmět: |
Computer science
Control (management) MathematicsofComputing_NUMERICALANALYSIS Micro grid Energy Engineering and Power Technology AC power Stability (probability) Energy storage Virtual inertia Variable (computer science) Control and Systems Engineering Control theory Inverter Electrical and Electronic Engineering Astrophysics::Galaxy Astrophysics ComputingMethodologies_COMPUTERGRAPHICS |
| Zdroj: | Chinese Journal of Electrical Engineering. 3:25-33 |
| ISSN: | 2096-1529 |
| Popis: | The virtual inertia and virtual damping affect both the dynamic stability of the virtual synchronous generator(VSG) and the configuration of energy storage, but there is a conflict between them while selecting the virtual inertia and virtual damping. An optimal coordination control strategy of micro-grid inverter and energy storage based on variable virtual inertia and damping is proposed to mitigate this conflict. With the integrated optimal constraint of the VSG frequency variation and the energy storage capacity, the virtual inertia and damping of VSG are configured dynamically, adopting linear quadratic optimal control. It can suppress the oscillations of the active power and frequency to improve the stability of VSG and optimally configure the energy storage capacity of VSG simultaneously. The proposed strategy aims to improve the control performance of micro-grid inverter and the system economy. The simulation and experimental results verify the effectiveness of the strategy. |
| Databáze: | OpenAIRE |
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