In the quest for more efficient and reliable renewable energy integration, a team of researchers from Nantong University’s School of Electrical Engineering has developed a novel wind power grid-connected monitoring system. This innovation, published in the *Journal of Nantong University: Natural Science Edition*, could significantly enhance the performance and commercial viability of wind power generation.
The research, led by ZHU Jianhong and colleagues, focuses on the critical aspect of grid-connected power generation: ensuring that the power produced by wind turbines is seamlessly integrated into the electrical grid. This is no small feat, as the intermittent nature of wind power poses unique challenges for grid stability and reliability.
The team’s solution combines hardware and software phase-locked loop (PLL) technologies to create a robust monitoring system. “We aimed to provide reliable grid-accessed power generation by addressing the technical indicators of grid-accessed dispatching,” explains lead author ZHU Jianhong. The system uses a moving average filter-based PLL (MAF-PLL) algorithm in the DSP program to acquire and detect data, while the hardware phase-locked loop employs multi-link circuit design for voltage extraction, comparison, latching, and driving trigger.
The practical implications of this research are substantial. By accurately collecting and monitoring voltage parameters on both the grid side and the power generation side, the system ensures that the phase difference is controlled within 13° and the voltage difference within 1%. These parameters are crucial for meeting national standards and ensuring the smooth operation of the electrical grid.
The commercial impact of this technology is particularly noteworthy. As the demand for distributed new energy power generation grows, so does the need for reliable grid-accessed controllers. “Our system addresses the market demand for grid-accessed supporting products, which is essential for avoiding energy consumption caused by long-distance transmission,” adds co-author GU Juping.
The successful joint debugging of the system demonstrates its potential for real-world application. By integrating hardware and software phase-locked loops, the researchers have created a monitoring system that could revolutionize the way wind power is integrated into the grid. This innovation not only enhances the efficiency and reliability of wind power generation but also paves the way for future developments in the field.
As the energy sector continues to evolve, the need for advanced monitoring and control systems will only increase. The research conducted by ZHU Jianhong and his team represents a significant step forward in meeting these challenges and shaping the future of renewable energy integration.