Hopewind Electric Obtains the World's First Network Converter Certificate

Recently, DNV, an internationally renowned organization, issued the world's first grid-type converter certificate to Hopewind Electric Online, confirming that Hopewind Electric's wind power converter (WPC) has been verified through appropriate methods and meets the technical requirements of grid-type converters for the future power grid with new energy power generation as the main feature.

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Since 2021, Hopewind Electric has cooperated with DNV, an internationally renowned institution, participated in Wingrid, a scientific research project supported by Horizon 2020 in the European Union, and successfully carried out a series of cutting-edge research and testing work on network converters in the DNV digital test laboratory in Arnhem, the Netherlands, with the support of mainstream wind turbine enterprises. Based on the electromechanical and electromagnetic co-simulation controller hardware-in-the-loop (CHiL) test platform (including real-time digital simulation system, Bladed? system, wind turbine PLC controller and converter controller hardware, etc.), the collaborative project combines validated mechanical models with real-time electrical models and controller hardware for the testing and verification of grid-type converters and wind turbine systems under various grid and wind conditions.

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Grid control is the most promising emerging control method for the new energy power generation equipment of the future, which is expected to meet the urgent requirements of grid-connected control of new power systems with new energy power generation as the main feature in the future. This new control model is highly innovative and has met technical challenges in academia and engineering.

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Based on the above-mentioned, hardware-in-the-loop (CHiL) joint test platform, the collaborative project has done much cutting-edge research and made relevant innovative breakthroughs. The project team finally fully verified the voltage/frequency independent formation characteristics, power quality, autonomous inertia response characteristics, low/high voltage fault traversal capability, port impedance characteristics and wind turbine black start capability under the support of the main control of the wind turbine, all of which have met relevant technical requirements and academic research standards. The research and verification on this test platform have implemented the cutting-edge configuration control technology to the mainstream wind power converters and wind turbines, laying a solid foundation for the technical development and batch application of the configuration control technology and multi-machine systems in the field of wind power.

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The successful implementation of this project once again proves the creative ability and technical strength of Hopewind Electric. At the same time, in the highly innovative wind energy industry, it has set a model of cooperation between mainstream new energy equipment manufacturers and international certification consulting bodies. In the future, Hopewind Electric will further strengthen the collaborative innovation with all parties, and promote the improvement of the demand characteristics and test methods of configuration control, to realize the wide application of configuration control in the new energy industry as soon as possible. As a comprehensive power electronics and control technology company, Hopewind Electric has always supported our customers and grid operators in providing advanced and competitive solutions to the challenges they face in the development process. The company's main products cover wind power converters, pitch control systems, photovoltaic inverters, battery energy storage systems, SVGs, industrial frequency converters, and grid simulation detection devices. We will continue to strive to build upon our leadership in power conversion and control technologies, including power quality, motor control, grid adaptation, grid support, and network construction capabilities.

About the Wingrid project

The WinGrid Alliance aims to study power system integration issues related to large-scale deployment of wind power generation, with a particular focus on modeling and control aspects of wind turbine and grid access design, power system stability analysis, and how to improve system stability control strategy implementation.

Hopewind Electric's participation in the Wingrid project ESR2 sub-project is divided into two major themes:

1. In terms of network function, it mainly focuses on the definition of wind mechanism network function and performance indicators, test method development, grid connection control algorithm development, and other related work.

2. In terms of grid access simulation, it mainly develops electromagnetic transient network fan simulation models and electromechanical transient configuration fan simulation models, which are used in the research of stability improvement of large-scale access to the new energy power grid.