Optical storage network system of small new energy passenger vehicle and small new energy passenger vehicle

Abstract

The utility model discloses an optical storage network system of a small new energy passenger car and the small new energy passenger car, which belong to the technical field of new energy automobile power supply, and comprise a solar silicon photocell panel, a switch module, a permanent magnet synchronous motor (PMSM), a motor controller, an energy storage battery module, a bidirectional vehicle-mounted charger (OBC) and a whole vehicle controller, the solar silicon photocell panel is connected with the permanent magnet synchronous motor (PMSM) through the switch module; the permanent magnet synchronous motor (PMSM) is connected with the motor controller; the motor controller is connected with the energy storage battery module; the energy storage battery module is connected with the bidirectional vehicle-mounted charger (OBC); and the vehicle control unit is connected with the switch module. According to the optical storage network system provided by the utility model, the energy storage battery of the small new energy passenger vehicle can be charged without using an inverter.

Description

TECHNICAL FIELD

[0001] The utility model belongs to new energy automobile power supply technical field, specifically, the utility model relates to a kind of light storage network system of small new energy passenger car and small new energy passenger car. BACKGROUND

[0002] In the field of automobile, by electric energy instead of petroleum as the driving energy of automobile will be the development trend of future automobile. Through solar silicon photovoltaic panel charges the energy storage battery of new energy automobile also increasingly become one of the hotspots of people's research. The traditional single-phase photovoltaic inverter system needs to be charged to the energy storage battery of new energy automobile by inverter, and it is not conducive to cost saving.

[0003] A kind of new energy automobile portable solar charging device and new energy automobile are disclosed in patent CN207382225U, the device includes solar cell group for converting solar radiation energy into electric energy;For converting direct current into alternating current inverter, the inverter is connected with the solar cell group by first relay;For storing electric energy's battery, the battery is connected between the first relay and the solar cell group through second relay node.

[0004] However, the technology disclosed in the above patent cannot charge the energy storage battery of small new energy passenger car without using inverter. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problem, for the deficiency of prior art, provide a kind of light storage network system of small new energy passenger car and small new energy passenger car, to reach the purpose of being able to charge the energy storage battery of small new energy passenger car without using inverter.

[0006] To achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0007] The utility model provides a kind of light storage network system of small new energy passenger car, including solar silicon photovoltaic panel, switch module, permanent magnet synchronous motor (PMSM), motor controller, energy storage battery module, bidirectional vehicle-mounted charger (OBC) and whole car controller, wherein, solar silicon photovoltaic panel is connected with permanent magnet synchronous motor (PMSM) by switch module;Permanent magnet synchronous motor (PMSM) is connected with motor controller;Motor controller is connected with energy storage battery module;Energy storage battery module is connected with bidirectional vehicle-mounted charger (OBC);Whole car controller is connected with switch module.

[0008] Further, switch module includes high-voltage relay and first non-polarity capacitor, and high-voltage relay and first non-polarity capacitor are connected in series.

[0009] Further, the energy storage battery module includes an energy storage battery and a second non-polarity capacitor, and the energy storage battery is connected in parallel with the second non-polarity capacitor.

[0010] Further, the permanent magnet synchronous motor (PMSM) has a center tap.

[0011] Further, the solar silicon photovoltaic panel is connected with the center tap through a switch module.

[0012] Further, the three-phase winding of the permanent magnet synchronous motor (PMSM) is connected with a three-phase full-bridge circuit of a motor controller.

[0013] Further, the three-phase full-bridge circuit of the motor controller is connected with the energy storage battery module.

[0014] The utility model also provides a small new energy passenger car, the small new energy passenger car is equipped with the light storage net system above.

[0015] The light storage net system has the following advantages:

[0016] (1) through the light storage net system of the utility model, the energy storage battery of the small new energy passenger car can be charged without using an inverter.

[0017] (2) in the utility model, when the solar silicon photovoltaic panel charges the small new energy passenger car, the inverter is not needed in the process, and the cost is reduced.

[0018] (3) when the solar silicon photovoltaic panel charges the energy storage battery of the small new energy passenger car in the utility model, the voltage of the solar silicon photovoltaic panel is less than the rated voltage of the energy storage battery of the new energy passenger car, so the three-phase winding of the permanent magnet synchronous motor is combined with the three-phase full-bridge circuit of the motor controller in the utility model, Boost interlaced boost is realized, and then the energy storage battery of the small new energy passenger car is charged.

[0019] (4) the small new energy passenger car can discharge the power grid through the technical scheme of the utility model, and when the small new energy passenger car discharges the power grid, the energy storage battery can realize reverse discharge to the power grid through the bidirectional on-board charger (OBC), and the scheme is simple and the cost is low.

[0020] (5) the small new energy passenger car is charged through the solar silicon photovoltaic panel in the utility model, which meets the environmental protection target of current clean energy use, and also has the beneficial effects of energy saving and carbon reduction. BRIEF DESCRIPTION OF DRAWINGS

[0021] The specification includes the following drawings, the contents shown are respectively:

[0022] Figure 1 Is a kind of small new energy passenger car's light storage network system's logic structure diagram of the utility model;

[0023] Figure 2 Is a kind of small new energy passenger car's light storage network system's principle diagram of the utility model.

[0024] Reference signs: 1, solar silicon photovoltaic panel;2, switch module;3, permanent magnet synchronous motor (PMSM);4, motor controller;5, energy storage battery module;6, two-way vehicle-mounted charger (OBC);7, vehicle controller;21, high-voltage relay;22, first non-polar capacitor;31, intermediate tap;32, three-phase winding of permanent magnet synchronous motor (PMSM);41, three-phase full-bridge circuit of motor controller;51, energy storage battery;52, second non-polar capacitor;411, first thyristor;412, second thyristor;413, third thyristor;414, fourth thyristor;415, fifth thyristor;416, sixth thyristor. DETAILED DESCRIPTION

[0025] The specific embodiments of the utility model are further described in detail below by comparing with the drawings and through the description of embodiments, the purpose is to help the skilled in the art to have more complete, accurate and in-depth understanding of the concept, technical scheme of the utility model, and to help its implementation.

[0026] Figure 1 Is a kind of small new energy passenger car's light storage network system's logic structure diagram of the utility model, including solar silicon photovoltaic panel 1, switch module 2, permanent magnet synchronous motor (PMSM) 3, motor controller 4, energy storage battery module 5, two-way vehicle-mounted charger (OBC) 6 and vehicle controller 7, wherein, solar silicon photovoltaic panel 1 is connected with permanent magnet synchronous motor (PMSM) 3 by switch module 2;Permanent magnet synchronous motor (PMSM) 3 is connected with motor controller 4;Motor controller 4 is connected with energy storage battery module 5;Energy storage battery module 5 is connected with two-way vehicle-mounted charger (OBC) 6;Vehicle controller 7 is connected with switch module 2.

[0027] Figure 2is a kind of small new energy passenger car's light storage net system's principle diagram of the utility model, including solar silicon photocell panel 1, switch module 2, permanent magnet synchronous motor (PMSM) 3, energy storage battery module 5, high voltage relay 21, first non-polarity capacitor 22, intermediate tap 31, the three-phase winding 32 of permanent magnet synchronous motor (PMSM) 3, the three-phase full-bridge circuit 41 of motor controller 4, energy storage battery 51, second non-polarity capacitor 52, first thyristor 411, second thyristor 412, third thyristor 413, fourth thyristor 414, fifth thyristor 415, sixth thyristor 416, wherein, switch module 2 includes high voltage relay 21 and first non-polarity capacitor 22, high voltage relay 21 and first non-polarity capacitor 22 are connected in series;Energy storage battery module 5 includes energy storage battery 51 and second non-polarity capacitor 52, and energy storage battery 51 is connected in parallel with second non-polarity capacitor 52.In addition, permanent magnet synchronous motor (PMSM) 3 has intermediate tap 31;Solar silicon photocell panel 1 is connected with intermediate tap 31 by switch module 2, specifically, solar silicon photocell panel 1 is connected with intermediate tap 31 by high voltage relay 21;The three-phase winding 32 of permanent magnet synchronous motor (PMSM) 3 is connected with the three-phase full-bridge circuit 41 of motor controller 4, specifically, the connection relationship of the three-phase winding 32 of permanent magnet synchronous motor (PMSM) 3 and the three-phase full-bridge circuit 41 of motor controller 4 is seen Figure 2 ;The three-phase full-bridge circuit 41 of motor controller 4 is connected with energy storage battery module 5, specifically, the three-phase full-bridge circuit 41 of motor controller 4 is connected with energy storage battery 51 and second non-polarity capacitor 52 respectively.

[0028] The working principle of the light storage net system of the utility model is introduced as follows in combination with Figure 1 And Figure 2

[0029] There is a short-circuit block on the plug of solar silicon photocell panel 1, when charging energy storage battery 51 by solar silicon photocell panel 1, first, the plug of solar silicon photocell panel 1 is inserted into charging interface, after the plug of solar silicon photocell panel 1 is inserted into charging interface, the relevant pins in charging interface will be short-circuited, in turn, wake up whole vehicle controller 7, after whole vehicle controller 7 is woken up, it will control high voltage relay 21 to close, after high voltage relay 21 is closed, the connection line of solar silicon photocell panel 1 and intermediate tap 31 is conducted.

[0030] ​Because the voltage of the solar silicon photovoltaic panel 1 is less than the rated voltage of the energy storage battery 51 of the new energy passenger car, when the solar silicon photovoltaic panel 1 charges the energy storage battery 51, when the connection line of the solar silicon photovoltaic panel 1 and the intermediate tap 31 is conducted, the three-phase winding 32 of the permanent magnet synchronous motor (PMSM) 3 and the three-phase full-bridge circuit 41 of the motor controller 4 are boosted and interleaved to realize charging of the energy storage battery 51 of the small new energy passenger car.

[0031] The principle of the boost and interleaving is based on the charging and discharging process of the three-phase winding 32 of the permanent magnet synchronous motor (PMSM) 3. When one of the second thyristor 412, the fourth thyristor 414 and the sixth thyristor 416 is conducted, the three-phase winding 32 of the permanent magnet synchronous motor (PMSM) 3 is charged; when one of the second thyristor 412, the fourth thyristor 414 and the sixth thyristor 416 is disconnected, the three-phase winding 32 of the permanent magnet synchronous motor (PMSM) 3 is discharged, and the current charges the energy storage battery through the first thyristor 411, the third thyristor 413 and the fifth thyristor 415 corresponding to the disconnected second thyristor 412, fourth thyristor 414 and sixth thyristor 416, and charges the second non-polarity capacitor 52 (output capacitor) at the same time. The first thyristor 411 corresponds to the second thyristor 412, the third thyristor 413 corresponds to the fourth thyristor 414, and the fifth thyristor 415 corresponds to the sixth thyristor 416.

[0032] Because the energy stored in the three-phase winding 32 of the permanent magnet synchronous motor (PMSM) 3, the output voltage can be higher than the input voltage. The duty cycle of the second thyristor 412, the fourth thyristor 414 and the sixth thyristor 416 can also be controlled to adjust the size of the output voltage. At the same time, in order to increase the power, the boost and interleaving can be performed in three phases with 120° phase difference, so as to improve the efficiency of the system and reduce the loss.

[0033] In addition, in the process of charging the energy storage battery 51 by the solar silicon photovoltaic panel 1, the maximum power point tracking (MPPT) technology is adopted, so that the power generation efficiency of the solar silicon photovoltaic panel 1 is the highest when the solar silicon photovoltaic panel 1 charges the energy storage battery 51.

[0034] The motor controller 4 used in the utility model is a motor controller 4 supporting charging function. In addition, the utility model also provides a small new energy passenger car, which is provided with the above-mentioned light storage network system.

[0035] The utility model has been described exemplarily above in combination with the drawings. Apparently, the utility model is not limited by the above-mentioned mode in the specific implementation. As long as various non-essential improvements are made by adopting the method concept and technical scheme of the utility model; or the above-mentioned concept and technical scheme of the utility model are directly applied to other occasions without improvement, all are within the protection scope of the utility model.

Claims

1. A small new energy passenger car light storage network system, characterized in that: It includes a solar silicon photovoltaic panel, a switch module, a permanent magnet synchronous motor (PMSM), a motor controller, an energy storage battery module, a bidirectional on-board charger (OBC) and a vehicle controller. The solar silicon photovoltaic panel is connected to the permanent magnet synchronous motor (PMSM) through the switch module; the permanent magnet synchronous motor (PMSM) is connected to the motor controller; the motor controller is connected to the energy storage battery module; the energy storage battery module is connected to the bidirectional on-board charger (OBC); and the vehicle controller is connected to the switch module.

2. The optical storage grid system of a small new energy passenger vehicle according to claim 1, characterized in that: The switch module includes a high-voltage relay and a first non-polar capacitor, and the high-voltage relay and the first non-polar capacitor are connected in series.

3. The optical storage grid system of a small new energy passenger vehicle according to claim 1, characterized in that: The energy storage battery module includes an energy storage battery and a second non-polar capacitor, and the energy storage battery and the second non-polar capacitor are connected in parallel.

4. The optical storage grid system of a small new energy passenger vehicle according to claim 1, characterized in that: The permanent magnet synchronous motor (PMSM) has a center tap.

5. The optical storage grid system of a small new energy passenger vehicle according to claim 4, characterized in that: The solar silicon photovoltaic cell panel is connected to the center tap through the switch module.

6. The optical storage grid system of a small new energy passenger vehicle according to claim 5, characterized in that: The three-phase windings of the permanent magnet synchronous motor (PMSM) are connected to the three-phase full-bridge circuit of the motor controller.

7. The optical storage grid system of a small new energy passenger vehicle according to claim 6, characterized in that: The three-phase full-bridge circuit of the motor controller is connected to the energy storage battery module.

8. A small new energy passenger car, characterized in that: The small new energy passenger car is equipped with the photovoltaic energy storage network system as described in any one of claims 1 to 7.

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