Switching control method for hybrid power sources of railway engineering machinery
A technology of power source switching and railway engineering, which is applied in the direction of traction driven by engines, transmissions driven by electric motors, electric vehicles, etc., to achieve the effect of improving work efficiency, expanding the scope of application, and reducing exhaust emissions.
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Embodiment 1
[0056] as attached figure 1 Shown, a specific embodiment of the railway engineering machinery hybrid power source switching system based on the method of the present invention, the system includes: a hybrid power source 10, and a converter 20 connected to the hybrid power source 10, the hybrid power source 10 The traction motor 30 is powered via the converter 20 . The hybrid power source 10 further includes an catenary power supply module 100 and an internal combustion power supply module 200 , and the electric energy from the catenary power supply module 100 or the internal combustion power supply module 200 is transformed and processed by the converter 20 and converted into electric energy required by the traction motor 30 . The railway construction machinery hybrid power source switching system described in this embodiment adopts the electric / internal combustion hybrid power main circuit, which includes two modes of catenary power supply and internal combustion generator se...
Embodiment 2
[0064] as attached Figure 4 As shown, a specific embodiment of a control method for switching a hybrid power source of railway engineering machinery. The hybrid power source 10 includes a catenary power supply module 100 and an internal combustion power supply module 200, and the electric energy from the catenary power supply module 100 or the internal combustion power supply module 200 is passed through The converter 20 converts and processes the electrical energy required by the traction motor 30 . The control method includes the following steps:
[0065] A) When the electrical connection between the railway engineering machinery 1 and the catenary 15 is turned on, and the catenary 15 continues to supply power, the traction motor 30 is powered by the catenary power supply module 100;
[0066] B) When the electrical connection between the railway engineering machinery 1 and the catenary 15 is disconnected, or the catenary 15 cannot continue to supply power, the internal com...
Embodiment 3
[0086] Another specific embodiment of a hybrid power source switching control method for railway engineering machinery. The hybrid power source 10 includes a catenary power supply module 100 and an internal combustion power supply module 200. The electric energy from the catenary power supply module 100 or the internal combustion power supply module 200 is converted. Converted and processed by the converter 20, it is converted into the electric energy required by the traction motor 30. The control method includes the following steps:
[0087] A) When the electrical connection between the railway engineering machinery 1 and the catenary 15 is turned on, and the catenary 15 continues to supply power, the traction motor 30 is powered by the catenary power supply module 100;
[0088] B) When the electrical connection between the railway engineering machinery 1 and the catenary 15 is disconnected, or the catenary 15 cannot continue to supply power, the internal combustion power sup...
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