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In photovoltaic (PV) system, the most commonly used DC/DC converter is the basic buck or boost circuit to implement the maximum point power tracking (MPPT) due to their simple structure and low cost while there are some MPPT constraint conditions. By contrast, the conventional buck/boost DC/DC converter without MPPT constraint condition is seldom used because of its high cost or poor performance....
To optimize the power management and control for photovoltaic (PV) system, in this paper, firstly, a structure of PV system is proposed. Secondly, the power management and control of this system is analyzed through strengths weaknesses opportunities threats (SWOT) matrix model and coordinate model. Finally, some experiments are conducted by MATLAB simulation to test weaknesses-opportunities (WO) and...
The off-grid run micro grid can give full play to the efficiency of the distributed generations, and can be used as the beneficial supplement of interconnected power grid. On the basis of analyzing the typical power supply constraints, the energy optimization model is established in order to most low running cost maximizing the use of wind and solar energy as the principle. Typical day energy scheduling...
The Six-Sequence Fault Components was used for fault location Algorithm of double lines on the same tower commonly. But the Algorithm is greatly influenced by the parameter's symmetry of transmission line, and particularly, the algorithm will bring bigger error when the conductor transposition is not perfectly. The paper analyzes the error of the fault location Algorithm based on the models of complete...
This thesis, subject to the obstacles exist throughout the process of tuning and optimization of the prevailing DC Double close-loop PID controller parameters, explains to realize the tuning and the optimization of PID controller parameters by introducing the Artificial Bee Colony Algorithm on the basis of Nectar Collecting Behavior to the DC Double close-loop tuning system. The comparison and the...
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