I am Working on Power quality improvement in three phase four wire distribution network using Distribution Static compensator. Many research paper have discuss using star-delta, Zig-zag transformer for neutral current elimination in four wire system. What new optimzation control technique can be implemented for DSTATCOM in order for power quality improvement and neutral current elimination. Also I am working with PV-DSTATCOM for three phase three wire and three phase four wire distribution network. which DSTATCOM topology would suit the best
Dear Digvijay:
You may benefit from this article about your topic:
"Power Quality Improvement of Three-phase four-wire DSTATCOM with Fuzzy logic Controller".
Abstract:
Abstract — The topology and control of three-phase 4-wire DSTATCOM consisting of a operating flexibility in the DSTATCOM consisting of a operating flexibly in the voltage or current control mode. In the voltage control DSTATCOM topology includes three single-phase voltage source converters connected in parallel. The proposed DSTATCOM provides the voltage regulation of power factor correction along with harmonics elimination, load balancing and neutral current compensation in 3-phase 4-wire system. Fuzzy logic techniques are primarily applied since quick control strategy is needed and imprecise and qualitative definition of action plans are available. While designing an optimal fuzzy controller, one has to look for two primary activities. There are find optimal membership functions for control and action variable, find an optimal set of rules between control and action variable.
@http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.228.941.
I hope it will be helpful...
Best regards...
Hi Digvijay Kanase,
Four DSTATCOM configurations are proposed by using FSSC or FSOC inverter topology with a zigzag transformer or T-connected transformer to compensate neutral current generated by the non-linear and unbalanced loads. Please read this article.
Article Three-Phase Four Switch DSTATCOM Topologies with Special Tra...
Through my work in this field, I found that in order to treat the tie line, it is possible to do treatment by grounding better than using transformers, inside Matlab, it does not have an economical thing because it is a simulation. In fact, the use of a transformer affects an economic cost, and beware of compensation, it will be canceled if a high value of the transformer is taken.
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