Optimal Power Flow Calculation of Active Distribution Network Based on Improved Comprehensive Technology

Comprehensive unified power flow controller ( UPFC ) technology can calculate voltage control parameters of UPFC, but it increases the nonlinearity Newton calculation. When comprehensive is combined with intelligent algorithm, only be optimized through active and reactive on branch, which makes optimization convergence worse. Therefore, an optimal calculation method for distribution network based improved proposed. First, analysis influence branch flow, model The accuracy enhanced by adjusting phase angle regulation radius series side transformer. Second, considering established. Finally, corresponding self-admittance mutual admittance elements are extracted from constructed introduced into Jacobian matrix, so that while maintains dimension algorithm directly optimize to reduce search space. IEEE33 bus system used example simulation, results before after improvement compared, Monte Carlo two algorithms 50 times respectively installation number verifies proposed has better operation speed.