| WARF: P05322US |  |
| Interface Switch for Distributed Energy Resources |
| INVENTORS | • | Robert Lasseter, Paolo Piagi |
OVERVIEW
Distributed energy resources (DER) are small power generators that are
typically located near the customer’s load, where energy is used. Small DER
produce low emissions, can be manufactured at low cost and take advantage of
waste heat. These devices, which are generally grouped with loads into a
microgrid with a single interface to the local utility, offer a promising means
of meeting the rapidly growing demand for more reliable power across the United
States. This invention provides an improved interface switch that
seamlessly and automatically connects and disconnects a DER microgrid from a
utility grid. The interface switch disconnects the DER from the utility
grid for protection and power quality events, allowing the cluster of loads and
DER to continue to operate as an island. During island conditions, the frequency
of the DER microgrid differs from that of the utility. When the conditions that
created the islanding are gone, the interface switch exploits this frequency
difference to rapidly and seamlessly reconnect the microgrid to the utility.
KEY BENEFITS
- Allows the DER microgrid to quickly and seamlessly switch between island mode and utility mode
- Operates automatically, using only locally available information
- May be operated manually
- Minimizes voltage transients, current surges, and other undesirable strains on the system
ADDITIONAL INFORMATION
Intellectual Property Status
Tech Fields
Electrical Engineering - Motors & power electronics
CONTACT INFORMATION
For current licensing status, please contact our team at
licensing@warf.org
or phone 608.262.4924. (Clicking this link will open a contact form in a popup window. If you have problems viewing the form, try disabling your popup blocker software.)
Since its founding in 1925 as the patenting and licensing organization for the University of Wisconsin-Madison, WARF has been working with business and industry to transform university research into products that benefit society. WARF intellectual property managers and licensing staff members are leaders in the field of university-based technology transfer. They are familiar with the intricacies of patenting, have worked with researchers in relevant disciplines, understand industries and markets, and have negotiated innovative licensing strategies to meet the individual needs of business clients.
