Management and Control for Smart Microgrid Based on Hybrid Control Theory
- 29 April 2011
- journal article
- research article
- Published by Informa UK Limited in Electric Power Components and Systems
- Vol. 39 (8), 813-832
- https://doi.org/10.1080/15325008.2010.541414
Abstract
The increased penetration of distributed generations introduces considerable complexity in the network operation, as well reliability if the distributed generations are effectively controlled and managed. Hence, the issues of management and control for smart microgrids become more significant. With respect to a large power system, a microgrid shows more conspicuous interactive hybrid dynamic behaviors. In this study, a novel hybrid model is first founded to clearly explain the hybrid interactive behaviors of microgrids. On the basis of the model, a two-level hierarchical hybrid control is proposed based on the hybrid system control theory in terms of interactive adjustment between the continuous controller at the lower level and discrete management at the upper level. The upper-level discrete management strategies are responsible for guaranteeing stability and security of the overall microgrid while constraining it to meet the load demand during significant disturbances, as well as minimizing the operating cost and reducing the emission during normal situations. The lower-level local continuous controllers are responsible for regulating the dynamic performance of each controlled unit to reach a satisfactory level. The effectiveness of the proposed hybrid control is demonstrated through simulation example.Keywords
This publication has 20 references indexed in Scilit:
- Small-signal dynamic model of a micro-grid including conventional and electronically interfaced distributed resourcesIET Generation, Transmission & Distribution, 2007
- Dynamic Modeling, Design, and Simulation of a Combined PEM Fuel Cell and Ultracapacitor System for Stand-Alone Residential ApplicationsIEEE Transactions on Energy Conversion, 2006
- Operation of a Multiagent System for Microgrid ControlIEEE Transactions on Power Systems, 2005
- Fuel Consumption Minimization of a MicrogridIEEE Transactions on Industry Applications, 2005
- Micro-Grid Autonomous Operation During and Subsequent to Islanding ProcessIEEE Transactions on Power Delivery, 2005
- Flexible Multiobjective Control of Power Converter in Active Hybrid Fuel Cell/Battery Power SourcesIEEE Transactions on Power Electronics, 2005
- An actively controlled fuel cell/battery hybrid to meet pulsed power demandsJournal of Power Sources, 2004
- Environmental/economic power dispatch using multiobjective evolutionary algorithmsIEEE Transactions on Power Systems, 2003
- Economic load dispatch multiobjective optimization procedures using linear programming techniquesIEEE Transactions on Power Systems, 1995
- Economic-emission load dispatch through goal programming techniquesIEEE Transactions on Energy Conversion, 1988