As the demand for renewable energy sources continues to surge in China, the stability of the power grid has become a critical concern. A recent study led by Xiaoling Yuan from the College of Artificial Intelligence and Automation at Hohai University addresses this challenge by introducing an innovative excitation control strategy for synchronous condensers (SC). The research was published in the International Journal of Electrical Power & Energy Systems, which focuses on advancements in electrical power and energy systems.
Synchronous condensers play a vital role in maintaining dynamic reactive power within modern AC/DC grids, especially as high-voltage direct current (HVDC) transmission systems become more prevalent. However, traditional excitation control methods for these devices often lead to significant voltage overshoots during grid voltage recovery, posing risks to system stability. Yuan’s team proposed a new proportion-integral–differential-acceleration (PIDA) controller that incorporates feedforward voltage control to enhance the performance of SCs.
The study utilized an improved IEEE14-node AC/DC hybrid system model, tested on the PSCAD/EMTDC simulation platform, to evaluate the effectiveness of the new control strategy. The findings revealed that the PIDA controller not only mitigates voltage fluctuations but also reduces overshoot by 6% and voltage drop by 10% compared to conventional methods. “The improved SC excitation control strategy can effectively suppress system bus voltage drop and reduce the risk of DC commutation failure,” Yuan stated, highlighting the practical implications of the research.
For the energy sector, these advancements present significant commercial opportunities. By optimizing the performance of synchronous condensers, utilities can enhance the reliability and stability of power grids, particularly in regions where renewable energy sources are increasingly integrated. This could lead to reduced operational costs and improved resilience against outages, making investments in such technologies more attractive.
Moreover, as countries worldwide strive to transition to greener energy systems, the demand for effective dynamic reactive power compensation solutions will likely rise. The findings from Yuan’s research could pave the way for more efficient grid management practices and open new markets for companies involved in power system technology and renewable energy integration.
For more information about the research and its implications, you can visit the College of Artificial Intelligence and Automation at Hohai University.
