February 1, 2015
Report

Transactive Control and Coordination of Distributed Assets for Ancillary Services: Controls, Markets and Simulations

Abstract

The purpose of this project is to develop a plausible transactive framework for DER participation in a regulation market. This document focuses on the methodology for creating a transactive-based regulation market, using one class of end-use devices as an example. The system contains two parts, one for acquiring resources at a longer timescale and a second for controlling the devices in a distributed manner at much shorter timescales. The first is based on a formal double-auction market where every five minutes each device bids the amount of resource it is able to provide and the minimum price that it would accept to provide that resource. The bid price is determined by the current state of the device and the willingness of the consumer to participate. The market system collects and orders the bids by price, and then determines a cleared price to meet the level of regulation needed. It broadcasts the cleared price to the devices, which results in contracting the services of the least cost resources. By contract, the devices that cleared the market are now engaged for the next five-minute market period. They are part of a distributed control system that allows them to respond at four-second intervals to a broadcasted regulation signal. The approach also limits the number of times devices can cycle between states (say on to off) in a given amount of time to protect the equipment life.

Revised: December 6, 2017 | Published: February 1, 2015

Citation

Subbarao K., J.C. Fuller, K. Kalsi, J. Lian, and E.T. Mayhorn. 2015. Transactive Control and Coordination of Distributed Assets for Ancillary Services: Controls, Markets and Simulations Richland, WA: Pacific Northwest National Laboratory.