Comprehensive compensation system for Vv wiring traction substation with out-of-phase and in-phase compatibility
A traction substation, comprehensive compensation technology, applied in reactive power compensation, reactive power adjustment/elimination/compensation, AC network to reduce harmonics/ripples, etc., can solve the problem of large train speed loss and substation tripping , train slope stop and other problems, to achieve the effect of cost reduction, speed loss reduction, and cost reduction
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Embodiment 2
[0031] figure 2 A specific embodiment of the present invention is shown, which is an in-phase operation mode of an electrified railway Vv traction substation based on mixed compensation to realize out-of-phase and in-phase compatibility comprehensive compensation systems. Its composition is: on the secondary side of the traction substation, only the lead (T1-N) phase supplies power to the traction load, the inductance FL is connected to the lead (T1-N) phase of the Vv traction transformer, and the capacitor FC is connected to the lagging (T2-N) phase ) phase, the AC side of the first static var generator SVG1 and the second static var generator SVG2 connected to the DC side are respectively connected to the leading (T1-N) phase and lagging (T2-N) phase of the Vv traction transformer, generating Negative sequence power flow opposite to traction load. Through reasonable control, take reactive power compensation and harmonic control into consideration. Reduce the cost by intro...
Embodiment 3
[0033] image 3 It shows that a specific implementation of the present invention is an out-of-phase operation mode of an electrified railway Vv traction substation based on a fully active device (SVG) to realize a comprehensive compensation system compatible with out-of-phase and in-phase. Its composition is: on the secondary side of the traction substation, both the leading (T1-N) phase and the lagging (T2-N) phase supply power to the traction load, the first static var generator SVG1 connected to the DC side and the second static var generator The AC side of the power generator SVG2 is respectively connected to the leading (T1-N) phase and lagging (T2-N) phase of the Vv traction transformer to generate a negative sequence power flow opposite to the traction load. Through reasonable control, take reactive power compensation and harmonic control into consideration.
Embodiment approach
[0035] Figure 4 It shows that a specific implementation of the present invention is an in-phase operation mode of an electrified railway Vv traction substation based on a fully active device (SVG) to realize a comprehensive compensation system compatible with out-of-phase and in-phase. Its composition is: on the secondary side of the traction substation, only the lead (T1-N) phase supplies power to the traction load, the inductance FL is connected to the lead (T1-N) phase of the Vv traction transformer, and the capacitor FC is connected to the lagging (T2-N) phase ) phase, the AC side of the first static var generator SVG1 and the second static var generator SVG2 connected to the DC side are respectively connected to the leading (T1-N) phase and lagging (T2-N) phase of the Vv traction transformer, generating Negative sequence power flow opposite to traction load. Through reasonable control, take reactive power compensation and harmonic control into consideration.
[0036] I...
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