NDLI: Research on a new method to achieve low voltage ride through of PV

Content Provider	IEEE Xplore Digital Library
Author	Liu Yaoyuan Zeng Chengbi Miao Hong Fu Wenwen
Copyright Year	2014
Description	Author affiliation: Coll. of Electr. & Eng., Sichuan Univ., Chengdu, China (Liu Yaoyuan; Zeng Chengbi; Miao Hong; Fu Wenwen) To solve the conflict between limiting the current of a grid-connected photovoltaic inverter and increasing the output reactive current during voltage drop, a low voltage ride through (LVRT) method based on improved Maximum Power Point Tracking (MPPT) control is proposed. When voltage sag occurs, an improved MPPT control based on perturbation and observation (P&O) method is adopted, adjust the operating point of the photovoltaic array to reduce the generated power, prevent the inverter from overcurrent and increase the reactive power output. Both detailed analysis and simulation results show that the method can effectively limit the output current of the inverter, achieve a reasonable allocation of active and reactive power. Consequently, the power shortage and reactive-power support issues are effectively improved.
Starting Page	1628
Ending Page	1634
File Size	877418
Page Count	7
File Format	PDF
ISBN	9781479950324
DOI	10.1109/POWERCON.2014.6993960
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-10-20
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Inverters Photovoltaic systems Voltage control Voltage fluctuations Reactive power Circuit faults reactive power support photovoltaic power system (PV) maximum power point tracking (MPPT) Double-Stage Grid-connected low voltage ride through (LVRT)
Content Type	Text
Resource Type	Article

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