Research For Optimization Algorithm Of The Power Factor Compensation And Intelligent Controller

The power electronic converter devices have been used in the power systerrn, Whichintensified the impact or unbalance load and caused many problems of power quality，such asthe voltage Auction and flicker,three-phase vcltage imbalance,low power factor ect. Sodynamic reative power compensation have the great signiifcance used in the end of the loadto improve power quality,ensure the stability of power supply voltage and current.TCR+FC-SVC is an important measure to increase power systerm stable level and reduceelectrical energy loss,So it has become a hot spot in the filed of dynamic reative powercompensation in recent years, However, the TCR+FC-SVC used now has many problemssuch as poor balance capacity,long ressponse time and week anti-interference.Aiming at thisproblems Designed the power factor compensating intelligent controller, which based on DSP(Digital signal prosscessor) and CPLD (Complex Programmable Logic Device) as the corecontrol unit.At first, the principle of dynamic reactive power compensation was researched in thepaper, then the mode of three-phase TCR+FC type compensator system have been built andsimulated. The results of simulation is verified admittance algorithm based on the averagepower is feasible，three-phase asymmetric load can be well balanced, the power factor can becorrected. The part of sotfware using C and VHDL (Very High Speed Hardware DescriptionLanguage) Language programming.Through the test results of partly hardware circuit and sotfware program，which showthat the Compensation admittance and delay angle can be calculated fast and accurately;Tirgger pulse generating module based on CPLD ensures the output trigger pulse with highprecision，good synchronization, fast response speed.The advantages that mentioned abovemade the thyristor can be trigered reliablely and synchronously.