Portable electric vehicle energy mutual assistance device and control method thereof

Abstract

The invention discloses a portable electric vehicle energy mutual assistance device and a control method thereof. The device comprises a six-channel staggered floating double-boost converter, a voltage / current sensor, a first A / D module, an IGBT driving module, a sliding mode controller and a generalized proportion-resonance controller based on a disturbance observer, a second A / D module and a voltage sensor. The method comprises the following steps: initializing an output voltage, constructing a differential homeomorphic standard type, obtaining an estimated value of an output current instantaneous value by using a disturbance observer, inputting the estimated value into a sliding mode controller to obtain an actual controller component, and inputting the actual controller component into a generalized proportional resonance controller to obtain a control signal of an IGBT driving module; and finally, driving the six-channel staggered floating double-boost converter to work. According to the invention, the requirements of weak power supply, constant-power power supply, small size, high gain and high power density of the energy mutual assistance device of the electric vehicle are met. The parallel six-channel current sharing problem is solved, the heat loss of equipment is reduced, and the service life is prolonged.

Description

technical field [0001] The invention belongs to the field of circuit devices or systems for power supply or distribution, and specifically relates to a portable electric vehicle energy mutual aid device and a control method thereof. Background technique [0002] New energy vehicles represented by electric vehicles are one of the effective ways to solve environmental pollution and fossil energy consumption. However, the laying speed of electric vehicle charging stations in my country cannot match the increasing growth rate of electric vehicle ownership, especially in remote areas. Once the battery mileage problem such as insufficient power in the middle of the electric vehicle occurs, the owner can only rescue and wait for rescue through mobile communication devices such as telephones. It greatly reduces the enthusiasm of consumers to purchase electric vehicles. [0003] In the prior art, electric vehicle charging stations cannot meet the growth rate of electric vehicle own...

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Problems solved by technology

[0004] Based on the above technical deficiencies, this application proposes a portable electric vehicle energy mutual aid device and its control method to solve the problem that electric vehicle charging stations cannot meet the growth rate of electric vehicle ownership, which leads to the inability to charge electric vehicles in time when the power is insufficient midway

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