Dynamics assessment of grid-synchronization algorithms for single-phase grid-connected converters

Han, Yi; Luo, Mingyu; Guerrero, Josep M.

doi:10.1109/icpe.2015.7167937

Cited by 5 publications

(1 citation statement)

References 13 publications

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“…The increasing global energy consumption has greatly accelerated the demand for renewable energy, such as wind and solar energy, and the grid connected photovoltaic (PV) power generation is growing with the tendency of increased scale and capacity [1][2][3]. As far as grid-connected photovoltaic (PV) inverters are concerned, the stability analysis and dynamic interaction between PV plants and distribution system are attracting a lot of attention.…”

Section: Introductionmentioning

confidence: 99%

Resonance damping and parameter design method for LCL-LC filter interfaced grid-connected photovoltaic inverters

Jiang

Shen

et al. 2016

2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia)

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Abstract-In order to attenuate PWM harmonics effectively and reduce filter cost and volume, LCL-LC filter is proposed using a combination of LCL filter and an LC series resonant part. Compared with LCL filter, LCL-LC filter is characterized with decreased total inductance and better switch-frequency harmonics attenuation ability, but the resonant problem affects the system stability remarkably. In this paper, active damping based on the capacitor voltage feedback is proposed using the concept of the equivalent virtual impedance in parallel with the capacitor. With the consideration of system delay, this paper presents a systematic design method for the LCL-LC filtered grid-connected photovoltaic (PV) system. With this method, controller parameters and the active damping feedback coefficient are easily obtained by specifying the system stability and dynamic performance indices, and it is more convenient to optimize the system performance according to the predefined satisfactory region. Finally, the simulation results are presented to validate the proposed design method and control scheme.

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Section: Introductionmentioning

confidence: 99%