Visual Tool for Assessing Stability of DER Configurations on Three-Phase Radial Networks
- Univ. of California, Berkeley, CA (United States)
- Australian National Univ., Canberra, ACT (Australia)
Here, we present a method and tool for evaluating the placement of Distributed Energy Resources (DER) on distribution circuits in order to control voltages and power flows. Our previous work described Phasor-Based Control (PBC), a novel control framework where DERs inject real and reactive power to track voltage magnitude and phase angle targets. Here, we employ linearized power flow equations and integral controllers to develop a linear state space model for PBC acting on a three-phase unbalanced network. We use this model to evaluate whether a given inverter-based DER configuration admits a stable set of controller gains, which cannot be done by analyzing controllability nor by using the Lyapunov equation. Instead, we sample over a parameter space to identify a stable set of controller gains. Our stability analysis requires only a line impedance model and does not entail simulating the system or solving an optimization problem. We incorporate this assessment into a publicly available visualization tool and demonstrate three processes for evaluating many control configurations on the IEEE 123-node test feeder (123NF).
- Research Organization:
- Univ. of California, Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office
- DOE Contract Number:
- EE0008008
- OSTI ID:
- 1814195
- Journal Information:
- 2021 IEEE Madrid PowerTech, Conference: 2021 IEEE Madrid PowerTech, Madrid (Spain), 28 Jun-2 Jul 2021; Related Information: Code: https://github.com/jaimiosyncrasy/heatmap
- Country of Publication:
- United States
- Language:
- English
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