Publication Type:

Conference Paper


2010 IEEE 12th Workshop on Control and Modeling for Power Electronics, COMPEL 2010, Boulder, CO (2010)





Active and reactive power, Computational time, Controllers, Current control, Current controller, Current injections, Decoupled control, DSP processor, Electric current control, Grid-connected, Load currents, Neutral point clamped inverters, Neutral voltage, Power control, Power converters, Power electronics, Predictive methods, Reactive power, Reactive power compensation, Rotation, Sampling frequencies, Synchronous rotaing frame, Synchronous rotating frames, Three phase, Three-level inverters, Three-level neutral point clamped, Transient performance, Two-axis


This paper presents a predictive method of current control for grid connected three level neutral point clamped inverter in synchronous rotating frame. The predictive current controller calculates the inverter voltage required to force the load current to follow the reference. To validate the performance the computational time has been compared with DSP processor TMS320C240 and the maximum permissible sampling frequency is calculated. Transient performance of the controller is analyzed. The proposed controller also validates the neutral voltage balancing and reactive power control. Three phase balanced current injection to the grid with reactive power control has been attained. The decoupled control over active and reactive power has been achieved through the variation of synchronously rotating two axis currents.


cited By (since 1996)0; Conference of org.apache.xalan.xsltc.dom.DOMAdapter@1ea69342 ; Conference Date: org.apache.xalan.xsltc.dom.DOMAdapter@4a0de1c6 Through org.apache.xalan.xsltc.dom.DOMAdapter@5561b425; Conference Code:81922

Cite this Research Publication

Ra Krishna, Kottayil, S. Kb, and Leijon, Ma, “Predictive current controller for a grid connected three level inverter with reactive power control”, in 2010 IEEE 12th Workshop on Control and Modeling for Power Electronics, COMPEL 2010, Boulder, CO, 2010.