Three-Phase Distribution Locational Marginal Pricing to Manage
Unbalanced Variable Renewable Energy
Abstract
This paper investigates three-phase, component-wise real and reactive
distribution locational marginal pricing (DLMP). Through the use of case
studies, mixtures of positive and negative, as well as real and
reactive, DLMP components are explored in detail. A modified three-phase
unbalanced 69-node PG&E system is used to demonstrate the validity of
the three-phase real and reactive DLMP model. Results emphasize the
importance of three-phase pricing schemes and reactive power pricing.
The results also indicate the DLMP mechanism can potentially assist in
balancing power across phases. DLMP can serve as an economic price
signal to efficiently operate the system while minimizing losses,
voltage violations, congestion, and imbalances across all phases.