Hybrid Transmission Distribution Co-simulation: Frequency Regulation using Battery Energy Storage

• DOI: 10.48550/arxiv.1912.07204
• Publication Date: 2019-01-01
• Authors: Gayathri Krishnam...; Anamika Dubey
• Keywords: Frequency Regulation; Automatic Generation Control; Mode (computer interface); Transmission system; Demand Response

Battery energy storage systems (BESS) are proving to be an effective solution in providing frequency regulation services the bulk grid. However, there several concerns for transmission/distribution system operators (TSO/DSO) with frequent dispatching of distribution-connected fast-responding systems. Unfortunately, existing decoupled models transmission and distribution (T&D) simulations unable capture complex interactions between two especially concerning problems due rapidly varying distributed resources (DERs). In this paper, iteratively coupled T&D hybrid co-simulation framework is developed facilitate planning studies help integrate BESS response highly variable DERs such as photovoltaic generation (PVs). Specifically, proposed helps evaluate: (1) effects DERs/PVs on system's automatic control (AGC) response, (2) highlights use using integrated model. The demonstrated IEEE 9-bus model (operating dynamics mode) multiple EPRI Ckt-24 quasi-static mode). It shown that better visualize AGC presence high-levels DER variability requiring dispatch BESS.