A hybrid control strategy of harmonic compensation and resonance damping based on SAPF

作者：Dai Ke^*; Duan Kewei; Liu Cong; Wang Xin

来源：Transactions of China Electrotechnical Society, 2013, 28(9): 86-94.

• Damping characteristics
• Harmonic compensation
• Harmonics compensation
• Hybrid control strategies
• Power quality standards
• Resonance damping
• SAPF
• Shunt active power filter (SAPF)

In small and independent power system or distribution network, capacitors are widely used to increase power factor, which together with system impedance generally cause resonant problems. In this paper, shunt active power filter (SAPF) is used to compensate harmonic and damp resonance. Firstly, the damping characteristics of SAPF with traditional load current detection methods (detecting current including or not including the capacitor current) are analyzed respectively. The results show detecting current not include the capacitor is better. Then the capability of SAPF to compensate harmonic and damp resonance under the better detecting is discussed. In traditional control strategy, SAPF have a certain effect to reduce harmonic and suppress resonance, but it cannot be satisfied the power quality standard. So, a new hybrid control strategy of harmonic compensation and resonance damping is proposed to satisfied in this paper. Finally, the simulation and experiment results are presented to verify the analysis.

• 出版日期2013
• 单位华中科技大学