Adaptive primal–dual control for distributed energy resource management

Joshua Comden, Jing Wang and Andrey Bernstein

Applied Energy, 2023, vol. 351, issue C, No S0306261923012473

Abstract: With the increased adoption of distributed energy resources (DERs) in distribution networks, their coordinated control with a DER management system (DERMS) that provides grid services (e.g., voltage regulation, virtual power plant) is becoming more necessary. One particular type of DERMS using primal–dual control has recently been found to be very effective at providing multiple grid services among an aggregation of DERs; however, the main parameter, the primal–dual step size, must be manually tuned for the DERMS to be effective, which can take a considerable amount of engineering time and labor. To this end, we design a simple method that self-tunes the step size(s) and adapts it to changing system conditions. Additionally, it gives the DER management operator the ability to prioritize among possibly competing grid services. We evaluate the automatic tuning method on a simulation model of a real-world feeder in Colorado with data obtained from an electric utility. Through a variety of scenarios, we demonstrate that the DERMS with automatically and adaptively tuned step sizes provides higher-quality grid services than a DERMS with a manually tuned step size.

Keywords: Distributed energy resource management system; Virtual power plant; Primal–dual control; Grid service (search for similar items in EconPapers)
Date: 2023
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DOI: 10.1016/j.apenergy.2023.121883

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