CN205960672U - Total line type solar photovoltaic electric motor car intelligent charging system - Google Patents

Abstract

The utility model provides a bus-type solar photovoltaic electric vehicle intelligent charging system, which includes a host computer and a PROFIBUS-DP bus with multiple intelligent network nodes. The PROFIBUS-DP bus is connected to each intelligent network node to form a local area network. The host computer passes through The PROFIBUS‑DP adapter card is connected to the PROFIBUS‑DP bus, and each intelligent network node is connected with an electrical signal sensor and a solar photovoltaic charging system. The utility model has the advantages of high reliability, high intelligence, high information management level and the like.

Description

A bus-type solar photovoltaic electric vehicle intelligent charging system

technical field

The utility model relates to the technical field of automatic control, in particular to a bus-type solar photovoltaic electric vehicle intelligent charging system.

Background technique

Today, traditional fossil energy is the main source of fuel for a large number of vehicles, but it is a primary energy source. With the over-exploitation and utilization of resources and population expansion, there will be a state of fossil depletion. In addition, during the use of fossil energy, a large amount of greenhouse gases, such as carbon dioxide, will be added, and some toxic and polluting fumes may be produced at the same time, threatening the natural ecology. It can be seen that the development of a clean renewable energy source is of great significance. The operation of electric vehicles has been very popular in cities. Its light weight and low price can quickly enter the market, greatly relieving traffic pressure and protecting the environment. However, there are still many problems in the use of electric vehicles, such as high power consumption, limited battery capacity of electric vehicles, and restrictions on the driving distance. Generally, electric vehicles are charged through the grid. Although the charging cost of the mains is low, there are no charging conditions for electric vehicles in places such as roads and suburbs. Therefore, it is necessary to use solar energy to build electric vehicle charging stations. For example, laying solar panels on the top of a carport or a gas station does not take up a large area, but is also environmentally friendly and saves electricity.

The traditional solar photovoltaic electric vehicle charging system is single-node control, that is, it controls a single charging device. However, with the popularity of photovoltaic charging for solar electric vehicles, multiple solar photovoltaic electric vehicle charging multi-node systems will appear in one electric vehicle charging station. That is, a charging station has to manage multiple solar photovoltaic charging devices. The current widely used single-node control has shortcomings, mainly because data cannot be shared and centralized control, especially when the charging equipment is scattered and multiple nodes are required for management, this contradiction is even more prominent.

In order to solve the above technical problems, this case was born.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art, and provide a bus-type solar photovoltaic electric vehicle intelligent charging system with high reliability, high intelligence, and high information management level.

In order to achieve the above object, the technical scheme of the utility model is as follows: a bus-type solar photovoltaic electric vehicle intelligent charging system, including a host computer, a PROFIBUS-DP bus with a plurality of intelligent network nodes, and the PROFIBUS-DP bus is connected to each intelligent network The nodes form a local area network, and the upper computer is connected to the PROFIBUS-DP bus through the PROFIBUS-DP adapter card. Each intelligent network node is connected with an electrical signal sensor and a solar photovoltaic charging system.

Further, the intelligent network node includes a main controller and a remote station communication controller, the electrical signal sensor is connected to the main controller, and the main controller is connected to the PROFIBUS-DP bus through the remote station communication controller.

Further, the main controller is also connected with an input module, a touch screen display and an alarm.

Further, the solar photovoltaic charging system includes a PV photovoltaic array module, an MPPT controller, a DC/DC module and a DC/AC module, and the PV photovoltaic array module, the MPPT controller, the DC/DC module and the DC/AC module are connected in sequence, The load is connected to the DC/DC module and the DC/AC module, the main controller is connected to the MPPT controller, and the electrical signal sensor is used to collect the voltage and current signals in the grid of the solar photovoltaic charging system.

Further, the solar photovoltaic charging system further includes a storage battery connected to the MPPT controller.

After adopting the above-mentioned technical scheme, the utility model has the following advantages compared with the prior art: the bus-type solar photovoltaic electric vehicle intelligent charging system of the utility model adopts the PROFIBUS-DP field bus control technology, and can simultaneously charge multiple solar photovoltaic electric vehicles The vehicle charging node performs parameter collection and automatic control of electric vehicle charging, and uses the real-time data fed back to the computer system by the intelligent device unit to keep abreast of the charging information of each electric vehicle charging terminal, and realize electric vehicle charging by accessing and viewing historical data Scheduling optimization, the device can centrally manage the charging of multiple solar photovoltaic electric vehicles, realize data sharing, make it safer and smarter, and improve the reliability, intelligence and information management level of the solar photovoltaic electric vehicle charging system.

Description of drawings

Fig. 1 is the overall structural block diagram of the present utility model.

Fig. 2 is a structural block diagram of an intelligent network node in the utility model.

Fig. 3 is a structural block diagram of the solar photovoltaic charging system in the utility model.

As shown in the figure: 1. Host computer 2, intelligent network node 21, main controller 22, remote station communication controller 23, alarm 24, input module 25, touch screen display 3, PROFIBUS-DP bus 4, PROFIBUS-DP adapter Matching card 5, electrical signal sensor 6, solar photovoltaic charging system 61, PV photovoltaic array module 62, DC/DC module 63, DC/AC module 64, battery 65, load 66, MPPT controller.

detailed description

Below by accompanying drawing and embodiment the utility model is described in further detail.

As shown in Figure 1: a bus-type solar photovoltaic electric vehicle intelligent charging system, including a host computer 1 composed of Siemens S7-300 (313-2DP) PLC, and a PROFIBUS-DP with multiple intelligent network nodes 2 bus3. The number of intelligent network nodes 2 can be increased, decreased and adjusted according to the scale of charging nodes in photovoltaic charging. The PROFIBUS-DP bus 3 is used as the communication network to connect the intelligent network nodes 2 into a distributed local area network. The upper computer 1 is connected to the PROFIBUS-DP bus 3 through the PROFIBUS-DP adapter card 4 , and each intelligent network node 2 is connected with an electrical signal sensor 5 and a solar photovoltaic charging system 6 .

As shown in FIG. 2 , the intelligent network node 2 includes a main controller 21 and a remote station communication controller 22 composed of Siemens S7-300 (313-2DP) PLC. The electrical signal sensor 5 is connected to the main controller 21, and the main controller 21 is connected to the PROFIBUS-DP bus 3 through the remote station communication controller 22 through the DP interface of the device. The main controller 21 is also connected with an input module 24 , a touch screen display 25 and an alarm 23 . The input module 24 is used for device control, the touch screen display 25 is used for parameter display and parameter setting, and the alarm 23 is used for early warning of system abnormal conditions. The upper computer 1 is connected to the PROFIBUS-DP bus 3 through the PROFIBUS-DP adapter card 4 for information exchange. The intelligent network node 2 receives various operation control commands and setting parameters of the upper computer 1 through the PROFIBUS-DP bus 3 . Signals such as voltage and current in the grid of the solar photovoltaic charging system 6 are collected in real time through the electrical signal sensor 5 . The intelligent network node 2 can transmit various parameters with the monitoring station and other CAN intelligent measurement and control nodes, and receive commands and data from the monitoring station to adjust and change the charging status of each electric vehicle node. The main controller 21 controls the charging of the load 65, and at the same time uploads various charging data to the host computer 1, and the host computer 1 performs centralized data processing and management.

The working principle of the intelligent network node 2 is: when transmitting the node information of the charging station, the main controller 21 accesses the remote station communication controller 22 through its own DP interface, and transmits the signal to the upper computer 1 . When receiving the signal from the host computer 1, the host computer 1 transmits the control signal to the PROFIBUS-DP bus 3, and the main controller 21 accesses the PROFIBUS-DP bus 3 through its own DP interface and receives the control signal from the host computer 1. In this way, two-way realization Monitoring of multiple solar photovoltaic charging installations.

As shown in Figure 3: solar photovoltaic charging system 6 includes PV photovoltaic array module 61, MPPT controller 66, DC/DC module 62, DC/AC module 63 and storage battery 64, PV photovoltaic array module 61, MPPT controller 66, DC The /DC module 62 is connected to the DC/AC module 63 in sequence, the load 65 is connected to the DC/DC module 62 and the DC/AC module 63, the main controller 21 is connected to the MPPT controller 66, the storage battery 64 is connected to the MPPT controller 66, and the power The signal sensor 5 is used to collect voltage and current signals in the grid of the solar photovoltaic charging system 6 .

The solar photovoltaic charging system 6 receives solar energy through the PV photovoltaic array module 61, and uses the maximum power point tracking MPPT controller 66 to process the energy of the PV photovoltaic array module 61 to obtain the maximum energy output. The module 62 processes the photovoltaic voltage to obtain a DC voltage suitable for the system, supplies the DC load 65 of the electric vehicle, and charges the battery 64, that is, the fast charging mode of the electric vehicle. The DC-to-DC DC/DC module 62 outputs the DC voltage through the DC/AC module 63, and processes the DC voltage to obtain a suitable AC voltage for the system, which is supplied to the AC load 65 of the electric vehicle, and charges the battery 64, that is, the slow charging of the electric vehicle model.

The utility model PROFIBUS-DP bus 3 solar photovoltaic electric vehicle intelligent charging device adopts the PROFIBUS-DP field bus control technology, which can simultaneously carry out parameter collection and automatic control of electric vehicle charging for multiple solar photovoltaic electric vehicle charging nodes, and utilizes the intelligent device The real-time data fed back to the computer system by the unit can keep abreast of the charging information of each electric vehicle charging terminal, and can realize the optimization of electric vehicle charging scheduling by reviewing and viewing historical data. This device can centrally manage the charging of multiple solar photovoltaic electric vehicles , realize data sharing, make it safer and smarter, and improve the reliability, intelligence and information management level of the solar photovoltaic electric vehicle charging system.

The above-mentioned embodiment is an inspiration, and through the above-mentioned description content, relevant workers can make various changes and modifications within the scope of not departing from the idea of this utility model. The technical scope of this utility model is not limited to the content in the description, and the scope of protection must be determined according to the scope of the claims.

Claims (4)

1. A bus-type solar photovoltaic electric vehicle intelligent charging system is characterized in that: it comprises a host computer, a PROFIBUS-DP bus with a plurality of intelligent network nodes, the PROFIBUS-DP bus connects each intelligent network node to form a local area network, and the host computer The PROFIBUS-DP adapter card is connected to the PROFIBUS-DP bus, and each intelligent network node is connected with an electrical signal sensor and a solar photovoltaic charging system; the intelligent network node includes a master controller and a remote station communication controller, and the electrical signal The sensor is connected with the main controller, and the main controller is connected with the PROFIBUS-DP bus through the remote station communication controller. 2. A bus-type solar photovoltaic electric vehicle intelligent charging system according to claim 1, characterized in that: the main controller is also connected with an input module, a touch screen display and an alarm. 3. A bus-type solar photovoltaic electric vehicle intelligent charging system according to claim 1, characterized in that: the solar photovoltaic charging system includes a PV photovoltaic array module, an MPPT controller, a DC/DC module and a DC/AC module , the PV photovoltaic array module, MPPT controller, DC/DC module and DC/AC module are connected in sequence, the load is connected to the DC/DC module and DC/AC module, the main controller is connected to the MPPT controller, and the electrical signal sensor is used to collect Voltage and current signals in the solar photovoltaic charging system grid. 4. A bus-type solar photovoltaic electric vehicle intelligent charging system according to claim 3, characterized in that: the solar photovoltaic charging system further includes a storage battery connected to the MPPT controller.