Adaptive coordination of sequential droop control for PV inverters to mitigate voltage rise in PV-Rich LV distribution networks

Abstract

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Operation Orchestration of Local Energy Communities through Digital Twin: A Review on suitable Modeling and Simulation Approaches

“…3) is also one of the important factors that needs to be considered for setting up a DT platform. Depending on the analytical needs of the stakeholders, the DT platform can be developed to model different levels, ranging from component [8], household/building [7], [9], and complete LEC level [10], to distribution [11], [12], and grid/market interaction level [13]. Each modeling level corresponds to a specific time-scale frame (from microsecond to years or longer).…”

“…The complexity of aggregated models can be reduced by applying simplification techniques, such as order reduction methods, or neglecting several dynamics of the system that are not necessary for certain research purposes. Several applications of this type of model for DERs can be found in [8], [10], [11], [20], [21]. In [11], [20], one-year time-series power flow is executed using OpenDSS platform to calculate state variables such as voltage magnitude, currents and powers in LEC based on physics-based model.…”

“…Several applications of this type of model for DERs can be found in [8], [10], [11], [20], [21]. In [11], [20], one-year time-series power flow is executed using OpenDSS platform to calculate state variables such as voltage magnitude, currents and powers in LEC based on physics-based model. Authors in [8], [10], [22] proposed coupled sequence components based models of DER, load devices to conduct the transient stability analysis of LEC.…”

Coordination of Load Tap Changer and Distributed Energy Resources to Improve Long-term Voltage Stability

“…The risks of voltage rise related to the disconnection of DERs were identified, and active power curtailment approaches were proposed to mitigate the problem of voltage rise. Further, adaptive coordination of sequential droop for PV is developed in [13] to solve the voltage rise problem while being able to reduce the amount of power curtailment. In [9], an adaptive proportional-integral controller is developed for multiple inverters to regulate DERs's terminal voltages.…”

Overvoltage Prevention and Curtailment Reduction Using Adaptive Droop-Based Supplementary Control in Smart Inverters

“…In the literature, overvoltage in distribution systems has been dealt with different methods such as expanding the conductor size of the feeder, using voltage regulators, modification of the taps of LV transformers [7], integration of energy storage systems (ESSs) like batteries [8][9][10], and inverter control approaches like Volt-Watt (active power curtailment (APC)) and Volt-Var (reactive power compensation) methods [11][12][13][14][15][16]. Prior research has merged reactive power compensation with additional methods for overvoltage prevention [17,18] which tends to be expensive, increases losses in the system, and requires communication links between controllers.…”