Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Protection and safety of electric distribution systems with dispersed storage and generation devices

Technical Report ·
OSTI ID:7123259
; ; ; ; ; ; ; ; ;
The use of Dispersed Storage and Generation (DSG) Systems depends on the resolution of the technical and economic issues that surround their interconnection to electric utility systems. This report presents an analysis of protection and safety problems associated with DSG systems connected to distribution systems. Based on this analysis, protection requirements and interconnection schemes have been identified for DSG systems that differ in size, interconnection voltage, prime mover, and electrical interface (i.e., synchronous generator). The cost for the equipment, installation, maintenance, and utility services have been estimated. A sensitivity analysis was developed to determine the benefits of adding protection equipment for reducing DSG outages, DSG start-up costs, and lost revenues from energy sales. DSG safety issues were analyzed using present utility safe work procedures as a guide. Requirements and cost estimates for a system that automates the opening of DSG disconnect switches are discussed. Functional capabilities of a computer-based relay package for DSG systems is discussed. The package is described in terms of its self-diagnostic capability, data sharing for multiple functions, and functional flexibility for implementing completely new functions not considered possible with conventional relays.
Research Organization:
Systems Control, Inc., Palo Alto, CA (USA)
DOE Contract Number:
AC05-84OR21400
OSTI ID:
7123259
Report Number(s):
ORNL/Sub-80-7974/1; ON: DE84012027
Country of Publication:
United States
Language:
English

Similar Records

Cost/risk trade-offs of alternate protection schemes for small power sources connected to an electric distribution system. [PROTECT]
Technical Report · Tue Dec 31 23:00:00 EST 1985 · OSTI ID:6079510
Interconnection requirements in New York state
Conference · Wed Jun 01 00:00:00 EDT 1983 · Energy Technol. (Wash., D.C.); (United States) · OSTI ID:5320873
Protecting interconnections between photovoltaic generators and utility distribution lines
Technical Report · Thu Oct 31 23:00:00 EST 1985 · OSTI ID:6196983

Related Subjects

200300* -- Electric Power Engineering-- Power Transmission & Distribution-- (-1989)
24 POWER TRANSMISSION AND DISTRIBUTION
25 ENERGY STORAGE
250000 -- Energy Storage
29 ENERGY PLANNING, POLICY, AND ECONOMY
296002 -- Energy Planning & Policy-- Electric Power Transmission & Distribution-- (-1989)
COST BENEFIT ANALYSIS
DISPERSED STORAGE AND GENERATION
ECONOMIC ANALYSIS
ECONOMICS
ELECTRIC UTILITIES
ENERGY SYSTEMS
ENGINEERED SAFETY SYSTEMS
EQUIPMENT PROTECTION DEVICES
INTERCONNECTED POWER SYSTEMS
POWER DISTRIBUTION SYSTEMS
POWER SYSTEMS
PUBLIC UTILITIES