Large-Scale Adoption of Self-Synchronized Universal Droop Controller-Based Inverters to Enable Ancillary Services for Different Modes of Distribution System Operations

Arce, Laura; Chamana, Manohar; Osman, Ilham; Ren, Beibei; Zhong, Qing-Chang; Bayne, Stephen

doi:10.1109/egrid48559.2020.9330668

Cited by 1 publication

(18 citation statements)

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“…The primary goal of grid-supporting inverters, which are positioned between grid-feeding [61] and GFM power inverters, is to produce appropriate real and reactive power values that will help regulate the frequency and voltage of the grid. Figure 2 illustrates the GFM inverter controller, which is based on SUDC [34]. In this context, the input signal v o represents the inverter voltage, while v g signifies the voltage in the grid.…”

Section: Gfm Inverter Controller Structurementioning

confidence: 99%

“…will help regulate the frequency and voltage of the grid. Figure 2 illustrates the GFM inverter controller, which is based on SUDC [34]. In this context, the input signal 𝑣 represents the inverter voltage, while 𝑣 signifies the voltage in the grid.…”

Section: Gfm Inverter Controller Structurementioning

confidence: 99%

“…The droop coefficients are n = 2 and m = 3 with K e = 20, E * = 1, S = 1, and ω * = 377 [18,33,34]. The simulation is set up to test the operation of the GFM power inverter controller when grid-connected and grid-disconnected.…”

Section: Parameter Design Guideline For the Gfm Inverter Control Stra...mentioning

confidence: 99%

“…and the situation stays for longer than 10 s, then the system can be defined as unstable [7]. If the frequency variation is outside the predetermined range, such as 59.7-60.3 Hz, the system is also considered unstable [18]. The high penetration of RES in large interconnected systems presents challenges such as intermittency and variability of RES generation, grid integration and stability concerns, grid congestion and curtailment issues, additional balancing and ancillary service requirements, increased complexity in system operation, integration costs and infrastructure upgrades, localized environmental impacts, supply-demand imbalance during low RES generation, and the need for advanced grid management techniques; mitigation strategies include forecasting, energy storage, and demand-side participation.…”

Section: Introductionmentioning

confidence: 99%

“…The conclusions regarding the GFM inverter control as a key asset of grid modernization were drawn appropriately based on the data from simulations obtained in a real-time simulator. This study was benchmarked with similar studies performed in [18,[32][33][34].…”

Section: Introductionmentioning

confidence: 99%

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Analysis of Grid-Forming Inverter Controls for Grid-Connected and Islanded Microgrid Integration

Ward,

Subburaj,

Demir

et al. 2024

Sustainability

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Autonomous grid-forming (GFM) inverter testbeds with scalable platforms have attracted interest recently. In this study, a self-synchronized universal droop controller (SUDC) was adopted, tested, and scaled in a small network and a test feeder using a real-time simulation tool to operate microgrids without synchronous generators. We presented a novel GFM inverter control adoption to better understand the dynamic behavior of the inverters and their scalability, which can impact the distribution system (DS). This paper provides a steady-state and transient analysis of the GFM power inverter controller via simulation to better understand voltage and frequency stabilization and ensure that the critical electric loads are not affected during a prolonged power outage. The controllers of the GFM inverter are simulated in HYPERSIM to examine voltage and frequency fluctuations. This analysis includes assessing the black start capability for photovoltaic microgrids, both grid-connected and islanded, during transient fault conditions. The high photovoltaic PV penetration levels open exciting opportunities and challenges for the DS. The GFM inverter control demonstrated appropriate response times for synchronization, connection, and disconnection to the grid. The DS has become more resilient and independent of fossil fuels by increasing the penetration of inverter-based distributed energy resources (DERs).

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Section: Gfm Inverter Controller Structurementioning

confidence: 99%

Section: Gfm Inverter Controller Structurementioning

confidence: 99%