Output Power Of Switched Reluctanee Wind Generators' Improvement And Optimization

With the continuous development of human society, especially since after entering the industrial civilization, has made considerable progress and great progress, however, the energy and environmental problems in the world economy and the growing population in the process has become more severe. Non-renewable energy, oil, coal and natural gas, over-exploitation and utilization, has been unable to meet the demand for energy from non-renewable energy generation more serious environmental problems the night. Development of new energy mix has reached a critical state. Solar, wind, hydro, biomass and geothermal energy development and utilization of renewable clean energy, governments began to receive attention. With wind as a clean, new energy and distributed widely, by the national government.In this paper, the wind power generator system- SRG(Switched Reluctance Generator, SRG) for the study. SRG to increase wind power generation systems and power generation efficiency as the goal, to study the relevant control parameters influence the excitation pattern is switched reluctance wind power generation system performance. Proposed based on Z-source network SRG strengthen excitation method, and the use of molecular kinetic theory of optimization algorithm to control the output power of the SRG. 20 Kw SRG build a wind power system hardware test platform, we designed a set of SRG wind generation system parameter acquisition software.The detailed research works can be listed as follows:(1) Has been applied to the current wind turbines are classified that summarizes comparative advantages and disadvantages of conventional wind turbines. Application advantages of SRG in wind power generation, and the research progress in SRG summarized.(2)SRG wind generation system introduces the basic theory and composition analysis of SRG works, summarized by the SRG encourage self-motivation and his two modes of operation derived from a variety of different excitation modes, analyze common SRG power converter It introduces two kinds of switch reluctance generator different rotor position detection method.(3)By analyzing the relationship between the inductance at SRG linear mathematical model rotor angular position, derived mathematical relationship with current and inductance, working principle outlined SRG three traditional control methods, advantages and disadvantages of the current three magnetic switch resistance generator control strategies outlined.(4)Movement force for low wind speed switched reluctance wind generator section below power force, resulting in generation interval is less than the excitation range of issues, proposed Z-source network coupled to a method of excitation power and asymmetrical half-bridge power converter between strengthening SRG excitation voltage, the excitation current is increased to accelerate the speed and reduce the excitation interval, to improve the low power generation efficiency. By MATLAB simulation and physical verification of the new Z-source network to optimize power converter open SRG low performance.(5)By studying SRG output mathematical model proposed by molecular kinetic theory SRG optimization algorithm to optimize the output power of the MATLAB / SIMULINK simulation platform, algorithm simulation, verification of the correctness and feasibility of the algorithm(6)Switched Reluctance built experiment platform hardware and power system control software design and PC software. Based on Switched Reluctance 20 kW wind power generation system of physical hardware platform, the related basic experiments, record the experimental data, test experimental waveforms.