The Added Value of Coordinating Inverter Control

Lusis, Peter; Andrew, Lachlan L. H.; Liebman, Ariel; Tack, Guido

doi:10.1109/tsg.2020.3030311

Cited by 7 publications

(1 citation statement)

References 34 publications

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“…Next, the optimised parameters of the QU-droop control curve were set in a timescale of seconds [8]. The benefits of coordinated photovoltaic (PV) inverter control with centralised coordination of PV active power curtailment, when compared to autonomous droop control, were presented in [9], in order to increase PV hosting capacity and reduce network losses. Lastly, in [10] a modified droop control strategy was proposed to mitigate the frequency and voltage oscillation impacts on the power system's stability.…”

Section: A Local Der Control Methodsmentioning

confidence: 99%

Flexibility Services Provision by Frequency-Dependent Control of On-Load Tap-Changer and Distributed Energy Resources

et al. 2021

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Distribution network connected distributed energy resources (DER) are able to provide various flexibility services for distribution system operators (DSOs) and transmission system operators (TSOs). These local and system-wide flexibility services offered by DER can support the frequency (f) and voltage (U) management of a future power system with large amounts of weather-dependent renewable generation and electric vehicles. Depending on the magnitude of frequency deviation, other active network management-based frequency control services for TSOs could also be provided by DSOs in coordination with adaptive control of DER. This paper proposes utilisation of demand response based on frequencydependent HV/MV transformer on-load tap-changer (OLTC) operation in case of larger frequency deviations. The main principle underlying the proposed scheme lies in the voltage dependency of the distribution network connected loads. In this paper, it is also proposed to, simultaneously with frequencydependent OLTC control, utilise reverse reactive power-voltage (QU)-and adaptive active power-voltage (PU)-droops with distribution network connected DER units during these larger frequency deviations, in order to enable better frequency support service for TSOs from DSO networks. The effectivity and potential of the proposed schemes are shown through PSCAD simulations. In addition, this paper also presents a holistic and collaborative view of potential future frequency control services which are provided by DSO network-connected resources for TSOs at different frequency deviation levels.

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Section: A Local Der Control Methodsmentioning

confidence: 99%