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

Since 2021, Hopewind Electric has cooperated with DNV, an internationally renowned organization, to participate in Wingrid, a scientific research project supported by Horizon 2020 in the European Union. With the support of mainstream wind turbine enterprises, Hopewind Electric has successfully carried out a series of cutting-edge research and testing work on grid-connected converters in DNV Digital Test Laboratory in Arnhem, the Netherlands. Based on the CHiL test platform (including real-time digital simulation system, Bladed ® system, wind turbine PLC controller and converter controller hardware, etc.), the cooperation project combines the verified mechanical model with the real-time electrical model and controller hardware. It is used to test and verify the grid-connected converter and wind turbine system under various grid and wind conditions.

Grid-type control is the most potential new control mode for new energy power generation equipment in the future, which is expected to meet the urgent requirements of grid-connected control for new power systems with new energy power generation as the main body in the future. This new control mode has high innovation value and technical challenges in academia and engineering.

Based on the above hardware-in-the-loop (CHiL) joint test platform, the cooperative project has carried out a lot of cutting-edge research work and made relevant innovative breakthroughs. The project team finally fully verified the voltage/frequency autonomous formation characteristics, power quality under various grid conditions, autonomous inertia response characteristics, low/high voltage fault ride-through capability, port impedance characteristics and black start capability of wind turbines supported by the main control of wind turbines of Hopewind Electric Wind Power Converter, all of which met the relevant technical requirements and academic research standards. The research and verification on the test platform have implemented the cutting-edge grid-connected control technology to the mainstream wind power converters and wind turbines, laying a solid foundation for the technical development and batch application of grid-connected control technology and multi-machine system in the field of wind power.

The successful implementation of this project has once again proved the innovative ability and technical strength of Hopewind Electric in the industry. At the same time, it has set an example of cooperation between mainstream new energy equipment manufacturers and international certification advisory bodies in the highly innovative wind energy industry. Hopewind Electric will further strengthen the cooperation and innovation with all parties, promote the improvement of the demand characteristics and test methods of network control, so as to realize the wide application of network control in the new energy industry as soon as possible.

As a comprehensive power electronics and control technology company, Hopewind Electric has been supporting our customers and grid operators to continuously provide advanced and competitive solutions to the challenges they face in the process of development. The company's main products cover wind power converters, pitch control systems, photovoltaic inverters, battery energy storage systems, SVG, industrial frequency converters and grid simulation detection devices. We will continue to strive to build on our leading edge in power conversion and control technologies, including power quality, motor control, grid adaptation, grid support and grid construction capabilities.

近日，国际知名机构DNV为禾望电气在线颁发了全球首张构网型变流器证书，确认禾望电气的风电变流器(WPC)，已通过适当的方法得以验证，符合以新能源发电为主体的未来电网对构网型变流器的技术要求。

自2021年起，禾望电气与国际知名机构DNV合作，参与了欧盟Horizon 2020支持的科研项目Wingrid，在主流风电整机企业的支持下，于荷兰阿纳姆的DNV数字测试实验室顺利开展了一系列针对构网型变流器的前沿性研究和检测工作。合作项目基于机电和电磁联合仿真控制器硬件在环(CHiL)测试平台（包括实时数字仿真系统、Bladed®系统、风机PLC控制器和变流控制器硬件等），将经过验证的机械模型与实时电气模型和控制器硬件结合起来，用于在各种电网和风力条件下对构网型变流器及风机系统的测试、验证。

构网型控制是未来新能源发电设备最具发展潜力的新兴控制方式，有望满足未来以新能源发电为主体的新型电力系统对并网控制的迫切要求。这一全新的控制模式，在学术上和工程上具有很高的创新价值和技术挑战。

合作项目基于上述硬件在环(CHiL)联合测试平台，开展了很多前沿性研究工作，并取得了相关创新突破。项目攻坚团队最终全面验证了禾望电气风电变流器的电压/频率自主形成特性、各种电网条件下的电能质量、自主惯量响应特性、低/高电压故障穿越能力、端口阻抗特性以及在风机主控支持下的风机黑启动能力等，均达到相关技术要求及学术研究水准。在该测试平台上的研究与验证，已将前沿的构网型控制技术落实到主流的风电变流器及风电机组，为构网型控制技术及多机系统在风电领域的技术发展和批量应用打下坚实基础。

本项目的成功开展，再次证明了禾望电气在行业里的创新能力和技术实力。同时还在高度创新的风能行业里，树立了主流新能源设备制造商与国际认证咨询机构之间的合作典范。禾望电气后续将进一步加强与各方的协作创新，推动构网型控制需求特性和测试方法的完善，以尽早实现构网型控制在新能源行业的广泛应用。