Sungrow's Inverters Achieve Landmark Approval in Brazil
Sungrow, recognized globally as a leading provider of photovoltaic (PV) inverters and energy storage systems, has recently achieved a significant milestone. All dynamic models of its inverters sold in Brazil have received official validation from the National Electric System Operator (ONS). This validation confirms that Sungrow's innovative products comply with strict standards, reflecting their high quality and reliability during dynamic electrical events.
Understanding the Need for Robust Dynamic Modeling
The backdrop of this achievement highlights the critical need for robust dynamic modeling in the wake of challenges faced by the energy sector. In 2023, Brazil experienced a major blackout that reinforced the importance of establishing greater confidence in the performance of inverter-based power resources during disturbances. It illuminated the essential role of reactive power support and the capability for low-voltage ride-through (LVRT) in ensuring system stability.
The ONS Report and Its Implications
Following this incident, the ONS published a comprehensive report in October 2023, launching an initiative aimed at evaluating and verifying inverter models and power plant controllers (PPCs). The goal was to bolster the accuracy and reliability of power system simulations, providing a framework for enhanced oversight and performance assessment in future energy operations.
Sungrow's Comprehensive Testing and Validation Process
Sungrow engaged closely with ONS to ensure its inverters underwent an exhaustive testing protocol. They utilized advanced simulation software, including PSCAD for electromagnetic transients and ANATEM for RMS-based electromechanical transients. This two-stage validation process was essential for analyzing dynamic events and understanding how these inverters would behave under various operational conditions.
In-Depth Inverter Level Testing
The validation process involved two major levels of inverter testing. At Inverter Level 1 (L1), Sungrow validated its PSCAD model with a semi-physical controller, aligning simulation results with actual hardware performance. Inverter Level 2 (L2) followed with the development of an ANATEM model, which was cross-checked with the verified PSCAD model to ensure consistency across platforms.
Sungrow demonstrated a strong commitment to this process, investing numerous resources and assembling a dedicated team of local representatives, along with global R&D experts and specialized consultants. This collective effort ultimately resulted in the successful approval of all sold inverter models, including a range of central, string, and modular inverters.
Commitment to Excellence in Energy Solutions
During this journey, Sungrow has dedicated itself to upholding a high technical standard, fostering collaboration with the ONS, and ensuring robustness within Brazil's National Interconnected System (SIN). "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," stated Ada Li, Vice President of Sungrow Americas.
About Sungrow
Sungrow has been a pioneer in renewable energy technology for over 28 years, evolving into a leader in sustainable power solutions. As of late 2024, the company has successfully installed 740 GW of power electronic converters globally. Its reputation as the world's most bankable PV inverter and energy storage company, according to BloombergNEF, showcases its commitment to innovation. By powering clean energy projects across the globe, supported by an extensive network of 520 service outlets, Sungrow strives to ensure an excellent customer experience while paving the way for a sustainable future.
Frequently Asked Questions
What is the significance of Sungrow's inverter approval?
The approval from Brazil's National Electric System Operator confirms that Sungrow's inverter models meet critical performance and safety standards, enhancing their credibility in the marketplace.
How does Sungrow ensure the performance of its products?
Sungrow conducts rigorous testing and validation processes, utilizing advanced simulation tools to analyze the dynamic behavior of its inverters during various operational scenarios.
What steps did Sungrow take following the 2023 blackout?
In response to the blackout, Sungrow engaged closely with the ONS to enhance the reliability of their inverters, validating their performance according to recent guidelines.
What types of inverters have been validated?
The validation encompassed a variety of Sungrow's inverter models, including central, string, and modular inverters, confirming their compliance with national standards.
What is Sungrow's role in the renewable energy sector?
Sungrow is a global leader in renewable energy technologies, committed to developing sustainable power solutions and advancing the modern electricity sector through innovative products.
