Identification of Harmonic Sources by Underdetermined State Estimator
نویسنده
چکیده
This paper presents a new system-wide harmonic state estimation method with the capability to identify harmonic sources with fewer meters than state variables. Note there are only a few simultaneous harmonic sources among the suspicious buses. By extending the concept of observability, the underdetermined system can be observable when considering the sparsity of harmonic sources. We formulate harmonic state estimation as a constrained sparsity maximization problem. It can be solved by linear programming. Our numerical experiments in IEEE 14-bus power systems show the effectiveness of the proposed method.
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