摘要
无源和有源阻尼协同控制保证系统具有良好的阻尼效果,但闭环设计较为困难。加权电流控制降低了系统的阶数,使系统易于实现闭环设计,然而并网电流谐波抑制效果受到系统非理想因素的影响,并且系统带宽受到限制。为此提出将无源和有源阻尼协同控制并与加权电流控制相结合的方法,提高了系统的稳定性,增大了系统带宽,并能满足分布式发电的并网标准。Matlab仿真结果表明,所提出的控制方法是可行有效的。
The adaptive characteristics for grid inductance and control delay can guarantee the passive and active damping coordination control with a good damping effect,but the closed loop the design is difficult. The weighted current control method can reduce the orders of the system and make it easy to design the closed loop control. But the harmonic suppression effect of grid current is influenced by the non-ideal factors of system,as well as the system bandwidth. This paper combines the passive and active damping control with weighted current control,and can not only improve the system stability,but also increase the system bandwidth and meet the standard of distributed generation.The results of Matlab simulation show that the proposed control method is feasible and effective.
出处
《江南大学学报（自然科学版）》
CAS
2015年第1期52-55,共4页
Joural of Jiangnan University (Natural Science Edition)
关键词
阻尼效果
加权电流
谐波抑制
分布式发电
damping effect
weighted current
harmonic suppression
distributed generati-on
