Harmonic Suppression Model Based on Economic Optimization

There are significant harmonics in distribution network, which can affect the operation of power equipment, increase losses, interfere with communications, reduce product quality, and even cause safety accidents, and effective suppression of which is of great significance to ensure system stability. In this paper, a model for harmonic suppression based on economic optimization is proposed to optimize the harmonic suppression cost to the minimum while satisfying constraints such as all nodes in distribution network have lower than standard total harmonic voltage distortion. Simulation results demonstrate that the proposed model can realize all nodes harmonics not exceeding the standard in different cases and can greatly reduce the cost of harmonic suppression compared to APF. This proves that the model can well solve the technical and economic problems of harmonic suppression, and lays the foundation for practical application.