Role of fault ride‐through strategies for power grids with 100% power electronic‐interfaced distributed renewable energy resources

Abstract

Electricity networks are evolving rapidly with the large-scale integration of power electronic (PE)-interfaced distributed renewable energy resources (DRERs). With this rapid deployment of PE-interfaced renewables, requirements set for the PE-interfaced DRERs have also evolved to maintain grid security and reliability. Fault ride-through (FRT) is an essential requirement which should be adhered by DRERs, which will ensure security and reliability of the power system during grid faults. This paper critically reviews the existing FRT standards (grid-code requirements) and FRT strategies implemented/ proposed for major DRERs, such as wind energy conversion systems (WECSs), solar photovoltaic (PV) systems, and microgrids. According to the review, robust FRT strategies are implemented/proposed DRERs, however, the FRT grid codes are presently developed with the perspective of both synchronous and renewable generation operating in the power system. However, this current approach should be augmented considering 100% PE-based renewable energy scenarios, and emerging issues, such as high penetration of PE-interfaced small-scale renewable generators (e.g., domestic solar-PV systems) and recurring grid faults, to achieve a sustainable renewable energy future. This article is categorized under: Concentrating Solar Power > Systems and Infrastructure Wind Power > Systems and Infrastructure Photovoltaics > Systems and Infrastructure K E Y W O R D S distributed renewable energy resources (DRERs), fault ride-through (FRT), gridcode requirements, microgrids, power electronic converters, solar-PV, wind energy conversion systems (WECSs)

A critical evaluation of grid stability and codes, energy storage and smart loads in power systems with wind generation

“…Fig. 4 compares a typical LVRT ability requirement for large-scale wind farms integration in some dominant countries including Ireland EirGrid PLC 2018 [75], Australia AEMC 2018 [76], UK National Grid 2018 [77], Germany and Netherlands 2015 [78], Denmark Energinet 2016 [79], India [80], China and United States of America (USA) Electric Reliability Council of Texas (ERCOT) [81], and Spain [13]. Most grid codes require generator connection for some voltage dips range from (0, 0.15, 0.2 p.u.)…”

“…However, there are still many technical and economic barriers limiting the large-scale application of these technologies. In this context, the work in [13] provided a high-level overview of the impact of large-scale power electronic-based renewable generators such as wind and solar power on the existing fault ride through and grid standard requirements. However, it does not include the role of fast response devices to ensure future grid stability as part of the recent grid code developments.…”

Exploring the Dynamic Voltage Signature of Renewable Rich Weak Power System

“…However, with an effective control scheme, IBRs could become more capable of complying with grid requirements or at least providing similar contributions that SGs used to provide in terms of voltage regulation and dynamic reactive power support. Several research efforts [6][7][8][9] 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.…”

“…The research effort in [6] reviewed the LSPV power plant's connection requirements and highlighted the challenging issues related to system stability. The authors of [8] analyzed the FRT standard of large-scale IBRs. The DVAr support of the IBR attaining more attention recently.…”

Fault Ride-Through Enhancement of Grid Supporting Inverter-Based Microgrid Using Delayed Signal Cancellation Algorithm Secondary Control

“…As a result, some developed countries have amended their respective grid codes to make provisions for rising RES capacity. Spain, Germany, and Denmark are among the foremost countries in 2004, 2006, and 2008 that already issued the FRT/LVRT requirements for DERs connected to the grid [24,25]. Spanish code requirement is displayed in Figure 1 accordingly.…”