Contact system, power pack and energy storage device hybrid-powered CRH train traction system

The invention relates to a contact system, power pack and energy storage device hybrid-powered CRH train traction system, which is characterized by mainly comprising a traction transformer, a power pack, an energy storage device, a traction converter and a traction motor, and a contact system is connected with the primary side of the traction transformer through a pantograph, and the two secondary windings of the traction transformer are directly connected with the traction converter; the traction converter is connected with the traction motor, and a diesel engine and a generator form the internal combustion power pack; and the three-phase output of the generator is directly connected with the traction inverter, and the energy storage device is connected with the intermediate DC bus of the traction converter. The traction system can run simultaneously on electrified and non-electrified lines, and can rescue self through power supplied by the power pack and the energy storage device.