Railway power system capable of suppressing harmonic waves

The invention discloses a railway power system capable of suppressing harmonic waves and belongs to the technical field of railway power. The railway power system capable of suppressing harmonic waves comprises a superior power source, a distribution substation power source cabinet, and a continuous power transmission line connected with the distribution substation power source cabinet, wherein a harmonic suppression device is arranged between the superior power source and a distribution substation, the harmonic suppression device comprises an electric reactor L, a resistor R, a breaker QF, an isolating switch QS1, an isolating switch QS2 and an isolating switch QS3, and the electric reactor L is connected with the resistor R in parallel; the superior power source is connected with the breaker QF, the breaker QF is connected with a connecting point at the end, connected with the resistor R in parallel, of the electric reactor L, a connecting point of the other end, not connected with the resistor R in parallel, of the electric reactor L is connected with a lower port end B, and the lower port end B of the harmonic suppression device is connected with the distribution substation power source cabinet. According to the railway power system capable of suppressing harmonic waves, damage, caused by harmonic waves of the superior power source, to electric equipment of the distribution substation in the railway power system is avoided, and it is guaranteed that the power system can stably operate when the distribution substation operates in various modes and the continuous power transmission line is in various states.