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Sungrow Inverters Successfully Pass the Brazilian Grid Operator Validations
In August 2023 , Brazil experienced a large-scale blackout that underscored the importance of accurate dynamic modeling for wind and solar power plants. The event brought attention to the need for greater confidence in the behavior of inverter-based resources during system disturbances, particularly in scenarios involving reactive power support and low-voltage ride-through (LVRT) capability.
As a result, the ONS published a Report (RAP 0012/2023) in October 2023 , launching a structured initiative to evaluate and verify the models of inverters and power plant controllers (PPCs), aiming to enhance the reliability and robustness of power system simulations.
In close coordination with ONS, Sungrow's inverters underwent extensive simulation and testing applying PSCAD for electromagnetic transients and ANATEM for RMS-based electromechanical transients, crucial for analyzing dynamic events like switching operations, faults and power electronics interactions. The processes were structured around two key stages, both of which posed significant challenges.
Sungrow deeply recognizes and values the role of the operator throughout the process, always with a high technical level and collaborative posture to ensure the robustness of the Brazilian National Interconnected System (SIN).
The company invested significant resources to ensure its inverters successfully met all required modeling verification standards and assembled a dedicated local team, global R&D experts, and specialized consultants to support the process from start to finish. As a result, Sungrow received this official approval for all sold inverters, ranging from central, string inverters to modular inverters.
"This achievement reinforces our commitment to delivering high-performance, grid-compliant solutions that contribute to the stability and modernization of Brazil's national power system," said Ada Li , Vice President of Sungrow Americas.
Sungrow, a global leader in renewable energy technology, has pioneered sustainable power solutions for over 28 years. As of December 2024 , Sungrow has installed 740 GW of power electronic converters worldwide. The Company is recognized as the world's most bankable PV inverter and energy storage company (BloombergNEF). Its innovations power clean energy projects across the globe, supported by a network of 520 service outlets guaranteeing excellent customer experience. At Sungrow, we're committed to bridging to a sustainable future through cutting-edge technology and unparalleled service. For more information, please visit: www.sungrowpower.com.
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