Reactive Power Compensation in Distribution Systems Through the DSTATCOM Integration Based on the Bond Graph Domain

摘要

In this paper, the distribution static compensator model based on the bond graph (BG) domain is presented. The methodologyis applied to reactive power compensation in distribution systems where a traditional phase lock loop for sensing the AC gridfrequency is not needed. The control law is developed using the inverse BG model, which is extracted using the bi-causalityconcept. In this way, it is possible to perform the distribution system analysis completely in the BG domain. This means thatthe graphical model is inverted by obtaining the open-loop control law structure, and then the close loop is formulated. Thebalanced and unbalance conditions are analyzed, generating a control structure that is robust and efficient. The efficacy ofthe proposed methodology is shown through: partial and complete system simulations in MATLAB/Simulink® (MATLABr2015b, Natick, Massachusetts, 01760, USA), as well as experimental laboratory tests. Such tests use: the rapid controlprototyping concept and the real-time simulator Opal-RT Technologies® (Montreal, QC, Canada).