| Along with the development of market economy and modern industry , the global energy crisis and environmental pollution has become a serious problem, and they have became two important factors to restrict the healthy and harmonious development of human society.The development and utilization of new energy is imperative, among them the technology of solar photovoltaic power generation pioneered the new ways of acquisition the green energy ,it is one of the important methods to solve the problem of energy crisis and it is highly regarded by every country. This thesis is in-depth study the conversion of solar photovoltaic (PV) grid inverter DC/AC technology, and complete the design efficiently converting inverter .This thesis is detailed analysis of the based topology structure of thephotovoltaic (PV) power system, and deep research on photovoltaic (PV) grid key technology and related theory; Completed the detailed design of inverter hardware system overalldesign and concrete circuit , and the design of function module including the corresponding DSP peripheral circuit, filter circuit, sampling circuit, drive circuit and safeguard circuit etc , Based on voltage space vector PWM as control algorithm, completed the design of control software of the inverter, Using MATLAB software to simulated and simulation the key link of inverter design. The simulation results show that the control algorithm good stability, high efficiency, inverter performance indexes meet the design requirements. |
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