Research On The Distributed PV Power System Reactive Power Control Strategies And Algorithms

Distributed photovoltaic technology is a new, broad prospects for developmentof power generation and energy utilization way. I research include:First, we studied the impact of distributed photovoltaic power generation withthe grid voltage and the net loss. The trend of the program to calculate the voltagedistribution before and after the distribution network of distributed photovoltaicpower generation system access, combined with access to the location of distributedphotovoltaic power generation system, a more comprehensive summary of distributedphotovoltaic power generation system with the grid voltage. Based on idealdistribution network model and analysis of practical examples, the capacity ofdistributed photovoltaic power generation system, access location and other factors,the study of distributed photovoltaic power generation system Distribution Networkloss.Second, distributed photovoltaic power generation with reactive poweroptimization algorithm based on genetic algorithms ground. Build a distributionnetwork of distributed photovoltaic power generation system reactive poweroptimization model of the number sequence to take full account of the minimumnetwork loss and node voltage constraints, the use of genetic algorithms on distributedphotovoltaic power generation reactive power given optimized. The simulation results,the optimization algorithm designed to reduce power loss and improve voltage qualityon the effectiveness and correctness.Finally, the number of sequence model of distributed photovoltaic powergeneration system and grid-connected inverter, and of its active and reactive power decoupling control method can be adjusted independently of the reactive powercapacity within the basis of this program on the simulation and experimental analysis.Studies have shown that distributed photovoltaic power generation systemreactive power control is conducive to full play to the positive role of distributedphotovoltaic power generation, mitigate the adverse effects of the distributionnetwork of distributed photovoltaic power system more funny, reliable operation.