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This presentation will summarize work on the Pacific Northwest Smart Grid Demonstration Project. A key element of the project is development and implementation of a technique referred to as transactive control. Transactive control will provide a means of coordinating the response of smart grid assets at all levels of the power system. In simple terms transactive control may be thought of as extending...
This paper describes the implementation and results of a field demonstration wherein residential electric water heaters and thermostats, commercial building space conditioning, municipal water pump loads, and several distributed generators were coordinated to manage constrained feeder electrical distribution through the two-way communication of load status and electric price signals. The field demonstration...
This paper presents an innovative solution to power quality problems using power quality-improving (PQI) appliances. PQI appliances conduct currents that supplement and correct the sum of the other load currents within a premise. From the utility side, the premise housing a PQI appliance thus becomes an improved, if not ideal, utility customer. The PQI appliance improves both harmonic power quality...
We presently enjoy a predominantly AC electrical distribution system, the engineering basis for which was designed over 100 years ago. While AC distribution systems have served us well, we should periodically pause to assess what opportunities we have accepted or been denied by the overwhelming predominance of AC electrical power distribution systems. What opportunities could be obtained by engineering...
This paper discusses a voltage-control strategy for power management of aggregate residential electric water heater (EWH) load. It is shown that by proper control of EWH operating voltage, the aggregate EWH power demand during peak-load hours can be reduced without necessarily sacrificing customers' comfort level.
This paper addresses design considerations for frequency responsive grid friendlytrade appliances (FR-GFAs), which can turn on/off based on frequency signals and make selective low-frequency load shedding possible at appliance level. FR-GFAs can also be treated as spinning reserve to maintain a load-to-generation balance under power system normal operation states. The paper first presents a statistical...
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