Electric tractor wireless energy transmission power system and method

Abstract

The invention relates to an electric tractor wireless energy transmission power system and method. The electric tractor wireless energy transmission power system comprises an internal module and an external module, wherein the internal module is arranged inside a tractor body to achieve the functions of receiving alternate current energy generated by induction in an alternating magnetic field andpower supply of an overall power system; wireless energy transmission power receiving modules of the internal module are arranged at the front, in the middle or at the rear of the middle of the bottomof a tractor or at the front, in the middle or at the rear of the left and the right of the tractor; the external module is arranged in a tractor ground moving rail or within the energy transmissionrange of left and right vertical rails and achieves a function of energy transmission of the alternating magnetic field produced by an alternate current electric field through a high-frequency inverter; the internal module and the external module achieve wireless energy and power transmission through non-contact electricity transmission with electromagnetic induction, electromagnetic resonance andmicrowave.

Description

technical field [0001] The invention belongs to the field of industrial machinery and equipment, and belongs to electric power equipment, which is mainly used for short-distance horizontal transportation of goods in regional yards such as ports, and relates to a wireless energy transmission power system and method for electric tractors. Background technique [0002] At present, when wharf enterprises use electric tractors to provide power with electric energy, the tractors will frequently start with no load, heavy loads, accelerate, stop suddenly, and wait for long-term start-up operations during wharf operations. The working conditions are diverse and complicated. Existing The tractor has the following disadvantages: 1) When the tractor starts with a heavy load, the power required by the whole vehicle is relatively high, and the power consumption of the battery is relatively large when the motor is running at high power; 2) When the tractor is fully loaded, the current is ve...

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Problems solved by technology

[0002] At present, when wharf enterprises use electric tractors to provide power with electric energy, the tractors will frequently start with no load, heavy loads, accelerate, stop suddenly, and wait for long-term start-up operations during wharf operations. The working conditions are diverse and complicated. Existing The tractor has the following disadvantages: 1) When the tractor starts with a heavy load, the power required by the whole vehicle is relatively high, and the power consumption of the battery is relatively large when the motor is running at high power; 2) When the tractor is fully loaded, the current is very large, requiring High-rate charging and discharging energy batteries or large-capacity batteries can meet the working conditions; high-power batteries are too expensive to be equipped with large-capacity; at the same time, large-capacity batteries occupy too much space and their own weight, resulting in low battery capacity and pure vehicle The electric running time is too short; 3) The characteristics of the port are not suitable for a large number of charging piles; 4) The actual operating conditions of the electric tractor at the terminal, the waiting time exceeds 50% of the total working time, and the waiting time exceeds 50% of the total working time. There is a 25% no-load driving ratio

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