Research Of Unified Power Quality Controller Based On Embedded Coder Generation

With the development of national economy(GDP), photovoltaic power generation,wind power and other new energy will be more and more connected to the electricity grid. Meanwhile we use of a large number of power electronics nonlinear load, these will bring all kinds of power quality problems. As a consequence a lot of power quality problems appeared in the same power distribution system at the same time, therefore, a comprehensive compensation capacity power quality conditioner(UPQC) become one of the research hotspot. Thesis based on the analysis of UPQC topological structure and mathematical model, studies the basic detection of harmonic algorithm and the control method. The simulation and control program based on the Embedded code generation are given.First of all, three level topology structures are used for UPQC series part which brings the output low harmonic and lower voltage drop of switch device. Simulation model and the simulation results of the technique of three level are given. For UPQC parallel part, the fuzzy control technology is adopted, compared to the traditional control system of fixed PI parameters, the fuzzy control adopts the variable PI, which improves the rapidity of control system.Second, for the control program, in view of the ccs3 version in Windows 7- 64 bit system incompatible problems, putting forward using ccs4 and win10 system structures build embedded code generation environment. The experimental results are given. Using the boost circuit verify the practicability of this method.Finally, thesis introduces the programming way of embedded code generation software based on DSP28335, and writes the parallel part control code UPQC based on code generation software simulation. Then write the software which can download.The capacitance and filter inductance in the shunt side of UPQC system are analyzedand parameters are chosen probably. Design of hardware circuit of signal acquisition boards is proposed.