Mine car energy storage type regenerative braking energy recovery structure and control method
A technology of regenerative braking and energy recovery, applied in electric braking systems, control/regulation systems, electric vehicles, etc., can solve the problems of large size and high price, and achieve lower output voltage, lower manufacturing costs, and a wide selection range. Effect
Pending Publication Date: 2021-04-13
国海峰 +1
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In practical applications, the switching frequency of the DC / DC converter can only be around 2kHz, which is bulky and expensive
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[0049] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.
[0050] refer to Figure 1-11 , a mine car energy storage type regenerative braking energy recovery structure and control method, the structural block diagram is as follows figure 1 As shown, it includes an input switch insurance unit, a main energy storage electrical unit, a bidirectional DC / DC converter 1, an auxiliary energy storage unit, a bidirectional DC / DC converter 2, a control unit, filter capacitors C1, C2, and an inductor L1.
[0051] Further, the input switch insurance unit functions as overcurrent protection and switch isolation. The main energy storage unit and the auxiliary energy storage unit can be composed of supercapacitors or lithium batteries. ...
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The invention relates to the technical field of energy absorption and feedback, discloses a mine car energy storage type regenerative braking energy recovery structure and a control method, and discloses a mine car energy storage type braking energy recovery and release structure and a control method. A series energy storage type DC / DC converter structure is constructed, the output of a bidirectional DC / DC converter is connected with an energy storage unit in series, and the energy flow between a direct-current bus and the energy storage unit is realized by adjusting the output of the bidirectional DC / DC converter. The structure comprises an input switch safety unit, a main energy storage unit, a bidirectional DC / DC converter 1, an auxiliary energy storage unit, a bidirectional DC / DC converter 2, a control unit, filter capacitors C1 and C2 and a filter inductor L1. A positive electrode (Ubus+) of the direct-current bus is connected with a positive electrode of the main energy storage unit through the input switch safety unit, a negative electrode of the main energy storage unit is connected with an A+ electrode of the bidirectional DC / DC converter 1, and an A- electrode of the bidirectional DC / DC converter 1 is connected with the reference ground.
Description
technical field [0001] The invention relates to the technical field of energy absorption and feedback, in particular to a mine car energy storage type regenerative braking energy recovery structure and control method. Background technique [0002] Due to the special environment of open-pit coal mining, large mining vehicles are required to work frequently on the uphill and downhill road sections. Among them, a large amount of potential energy will be generated when going downhill, and there will be a lot of inertial energy consumption when braking. At present, these two parts of energy are It is consumed on the resistance grid in the form of heat energy, resulting in a large amount of energy waste. If the technology of combining energy feedback and energy storage can be used to recover these wasted energy, and the energy can be fed back when the large mining vehicle goes uphill or starts, it will be able to effectively reduce the fuel consumption of the vehicle and enable th...
Claims
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IPC IPC(8): H02J3/32H02J3/24H02J3/36H02M3/158H02M1/088B60L7/10
CPCB60L7/10B60L2210/10H02J3/24H02J3/32H02J3/36H02M1/088H02M3/1582Y02T10/72
Inventor 国海峰孙力刘青山赵克段建东王帅
Owner 国海峰