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Improvements to LV distribution system PV penetration limits using a dSTATCOM with reduced DC bus capacitance

conference contribution
posted on 2017-12-06, 00:00 authored by Peter WolfsPeter Wolfs, Amanullah Maung Than Oo
A low voltage (LV) distribution level static compensator (dSTATCOM) is shown capable of regulating the positive sequence reactive power within a network while simultaneously cancelling zero and negative sequence currents that are introduced by load unbalance or by high levels of distributed photovoltaic (PV) generation. Instantaneous reactive power theory shows that DC-bus capacitor power will fluctuate at twice mains frequency during unbalanced operation and negative sequence currents will produce significantly higher voltage ripples than either positive or zero sequence currents. High rating non-polarized bus capacitors can be applied if the negative sequence currents are restricted. The paper proposes a method that allows a compensator with finite rating to best allocate its capacity to negative sequence, zero sequence and reactive power compensation.


Parent Title

2013 IEEE Power and Energy Society General Meeting (PES), 21 -25 July 2013, Vancouver, BC, Canada.

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Vancouver, Canada



Place of Publication

Piscastaway, New Jersey

Peer Reviewed

  • Yes

Open Access

  • No

External Author Affiliations

General Meeting; School of Engineering and Technology (2013- ); TBA Research Institute;

Era Eligible

  • Yes

Name of Conference

IEEE Power & Energy Society. General Meeting