Analysis And Administer Of Harmonic For Power Supply System Of Electrified Railway

In this paper, a detailed analysis of the electrified railway harmonic and reactive, and the cur In this paper, a detailed analysis of the electrified railway harmonic and reactive, and the current Beijing-Guangzhou line Bai xiang substation, the use of reactive power compensation and harmonic device actual operating results for the test, analysis. Test results show that the current use of traction substation reactive power compensation and harmonic devices are passive compensation device, reactive governance in achieving better results, average power factor can meet GB provisions 0.9 requirements , and has a certain filtering function. However, there are capacitive load reactive anti-hour operation, load large injection system has far exceeded its normal harmonic problems. Active Filter is a new harmonic and reactive compensation equipment, reactive compensation in the harmonic at the same time carry out effective governance. This paper established a adapted to the parallel hybrid electric railways active power filter model and its control and detection circuit. Theoretical analysis and simulation results show that the model of harmonic and reactive compensation with better results.