Abstract
Large-scale renewable energy-based power plants are becoming attractive technically and economically for generation mix around the world. Nevertheless, network operation has significantly changed due to the rapid integration of renewable energy in supply side. The integration of more renewable resources, especially inverter-based generation, deteriorates power system resilience to disturbances and substantially affects stable operations. The dynamic voltage stability becomes one of the major concerns for the transmission system operators (TSOs) due to the limited capabilities of inverter-based resources (IBRs). A heavily loaded and stressed renewable rich grid is susceptible to fault-induced delayed voltage recovery. Hence, it is crucial to examine the system response upon disturbances, to understand the voltage signature, to determine the optimal location and sizing of grid-connected IBRs. Moreover, the IBRs fault contribution mechanism investigation is essential in adopting additional grid support devices, control coordination, and the selection of appropriate corrective control schemes. This article utilizes a comprehensive assessment framework to assess power systems’ dynamic voltage signature with large-scale PV under different realistic operating conditions. Several indices quantifying load bus voltage recovery have been used to explore the system’ s steady-state, transient response, and voltage trajectories. The recovery indices help extricate the signature and influence of IBRs. The proposed framework’s applicability is carried out on the New England IEEE - 39 bus test system using the DIgSILENT platform.
Highlights
Photovoltaic and wind are the most widely used renewable energy resources due to resource availability, advancement in power electronics, and economic viability over other renewables
With an effective control scheme, inverter-based resources (IBRs) could become more capable of complying with grid requirements or at least providing similarcontributions that SGs used to provide in terms of voltage regulation and dynamic reactive power support
A framework for assessing the dynamic voltage signature with LSPV is presented in this paper
Summary
Photovoltaic and wind are the most widely used renewable energy resources due to resource availability, advancement in power electronics, and economic viability over other renewables. With an effective control scheme, IBRs could become more capable of complying with grid requirements or at least providing similarcontributions that SGs used to provide in terms of voltage regulation and dynamic reactive power support. Several research efforts [69] have been made to explore the dynamic capability of IBRs in complying with the grid requirements. The research effort in [6] reviewed the LSPV power plant's connection requirements and highlighted the challenging issues related to system stability. Research efforts in [10,11,12] have analyzed optimal reserve and location of DVAr resources to enhance the dynamic voltage stability of the grid, which is known as short-term voltage stability
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
