Energy manager design for microgrids

Technical Report · Sat Jan 01 04:00:00 EST 2005

DOI:https://doi.org/10.2172/838178· OSTI ID:838178

Firestone, Ryan ^[1]; Marnay, Chris

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1. LBNL Library

On-site energy production, known as distributed energy resources (DER), offers consumers many benefits, such as bill savings and predictability, improved system efficiency, improved reliability, control over power quality, and in many cases, greener electricity. Additionally, DER systems can benefit electric utilities by reducing congestion on the grid, reducing the need for new generation and transmission capacity, and offering ancillary services such as voltage support and emergency demand response. Local aggregations of distributed energy resources (DER) that may include active control of on-site end-use energy devices can be called microgrids. Microgrids require control to ensure safe operation and to make dispatch decisions that achieve system objectives such as cost minimization, reliability, efficiency and emissions requirements, while abiding by system constraints and regulatory rules. This control is performed by an energy manager (EM). Preferably, an EM will achieve operation reasonably close to the attainable optimum, it will do this by means robust to deviations from expected conditions, and it will not itself incur insupportable capital or operation and maintenance costs. Also, microgrids can include supervision over end-uses, such as curtailing or rescheduling certain loads. By viewing a unified microgrid as a system of supply and demand, rather than simply a system of on-site generation devices, the benefits of integrated supply and demand control can be exploited, such as economic savings and improved system energy efficiency.

• Research Organization: Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US)
• Sponsoring Organization: USDOE Assistant Secretary for Energy Efficiency and Renewable Energy. Distributed Energy & Electricity Reliability Program (US)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 838178
• Report Number(s): LBNL--54447
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
29 ENERGY PLANNING, POLICY, AND ECONOMY
CAPACITY
CAPITAL
DESIGN
DISTRIBUTED ENERGY RESOURCES MICROGRIDS
ECONOMICS
EFFICIENCY
ELECTRIC UTILITIES
ELECTRICITY
ENERGY EFFICIENCY
MAINTENANCE
MINIMIZATION
PRODUCTION
RELIABILITY
SUPPLY AND DEMAND