CN210072979U - Multifunctional training cabinet for photovoltaic power station - Google Patents

Abstract

The utility model discloses a multifunctional training cabinet for a photovoltaic power station, which belongs to the technical field of photovoltaic power station equipment. It includes a cabinet body, on which a photovoltaic generation simulation device, a simulation inverter device, a single-phase loop attachment panel and a three-phase loop attachment panel are arranged, and the photovoltaic generation simulation device includes a photovoltaic module, a measuring terminal and a fluorescent lamp, The fluorescent lamp is arranged in front of the photovoltaic assembly, the positive and negative electrodes of the photovoltaic assembly are respectively electrically connected to a measurement terminal, and the simulated inverter device includes an inverter, a photovoltaic assembly increase button, a photovoltaic assembly decrease button, a voltmeter and a computer , the photovoltaic assembly, the computer and the voltmeter are all electrically connected to the inverter, and the photovoltaic assembly increasing button and the photovoltaic assembly decreasing button are all electrically connected to the photovoltaic assembly. The utility model can comprehensively and intuitively train the photovoltaic power station access technology.

Description

A multifunctional training cabinet for photovoltaic power station

technical field

The utility model relates to the technical field of photovoltaic power station equipment, in particular to a multifunctional training cabinet for a photovoltaic power station.

Background technique

With the development of economy, the increase of population and the improvement of social living standards, the demand for energy in the future society will continue to increase, and the energy crisis will become increasingly urgent. Countries around the world attach great importance to the development of new energy and the research of related technologies. As a major energy consumer, my country pays more attention to the development and application of new energy technologies. As an important form of new energy, solar photovoltaic power generation has attracted more and more attention. The state has also promulgated relevant policies, requiring power grid companies to fully purchase the on-grid electricity of grid-connected photovoltaic power station projects and distributed photovoltaic power generation projects within their power grid coverage. , debugging training and practical operation is of great significance.

The patent document with the announcement number of CN 103680238 A discloses a hybrid simulation training system for an intelligent substation, which belongs to a system for training and teaching. The system of the utility model includes a power grid digital simulation system, a primary equipment simulation device and secondary equipment of an intelligent substation; the power grid digital simulation system includes a power grid real-time simulation server, a teacher computer and an I/O interface; the primary equipment simulation device includes an electronic transformer. Simulation device, low-voltage switch simulation device, circuit breaker simulation device and knife switch simulation device; the power grid digital simulation system is connected with the primary equipment simulation device, and the primary equipment simulation device is connected with the secondary equipment. The utility model is a comprehensive training platform established for the professional training of the smart grid, which can realize the simulation training of the whole range, the whole process and the whole scene of the substation operation and maintenance personnel. However, it cannot train PV power plant staff on PV installation, maintenance and commissioning. The patent document with the announcement number of CN 202677680 U discloses a solar and wind power generation simulation system training device, which consists of a wind power generation simulation circuit, a solar photovoltaic power generation simulation circuit, a wind-solar complementary controller, a load simulation circuit, a battery circuit, and an inverter monitoring circuit. The display and operation components of the circuit simulation system are installed in the control panel of the console and inside the box of the console, forming a teaching demonstration experimental device that is easy to operate and intuitively displayed. Since the device includes the main contents of new energy teaching experiment, demonstration and basic operation, it can improve the training effect and practical ability of trainees. However, the training device of the utility model is not specific enough, and cannot intuitively and comprehensively train the photovoltaic power station access technology.

SUMMARY OF THE INVENTION

In view of this, the present utility model provides a multi-functional training cabinet for photovoltaic power plants with various training types and intuitive operation, aiming at the deficiencies of the prior art.

In order to solve the above-mentioned technical problems, the technical scheme adopted by the present invention is: a multifunctional training cabinet for photovoltaic power station, including a cabinet body, on which a photovoltaic generation simulation device, a simulation inverter device, and a single-phase loop connection are arranged. The panel and the three-phase loop are attached to the panel, the photovoltaic generation simulation device includes a photovoltaic assembly, a measuring terminal and a fluorescent lamp, the fluorescent lamp is arranged in front of the photovoltaic assembly, and the positive and negative electrodes of the photovoltaic assembly are respectively electrically connected to a measuring terminal;

The simulated inverter device includes an inverter, a photovoltaic component increase button, a photovoltaic component decrease button, a voltmeter and a computer, the photovoltaic components, the computer and the voltmeter are all electrically connected to the inverter, and the photovoltaic component increases Both the button and the photovoltaic component reduction button are electrically connected to the photovoltaic component;

The single-phase loop connection panel includes a single-phase electric energy meter, an air switch I, a special switch I for grid connection, a surge protector I and an isolation knife switch, the inverter, the air switch I, the special switch I for grid connection I, The surge protector I, the first isolation switch, the single-phase electric energy meter, and the second isolation switch are electrically connected in sequence;

The three-phase loop connection panel includes a three-phase electric energy meter, an air switch II, a special switch II for grid connection, a surge protector II and an isolation knife switch, the inverter, the air switch II, the special switch II for grid connection, The surge protector II, the third isolation switch, the three-phase electric energy meter, and the fourth isolation switch are electrically connected in three phases in sequence.

Preferably, the photovoltaic generation simulation device further includes a dimming knob, and the fluorescent lamp is electrically connected to the dimming knob.

Preferably, the two measurement terminals are respectively connected to the positive and negative electrodes of the multimeter.

Preferably, both the surge protector I and the surge protector II are connected to a ground terminal, and the ground terminal is electrically connected to the ground.

Preferably, a battery pack is arranged in the lower part of the cabinet, and the battery pack supplies power to the computer and the fluorescent lamp.

Preferably, a cabinet door is arranged at the lower part of the cabinet body, and a handle with a lock is arranged on the cabinet door.

Preferably, the bottom of the cabinet is provided with a universal wheel with brakes.

Compared with the prior art, the beneficial effects of the present utility model are as follows:

The multifunctional training cabinet of the photovoltaic power station of the utility model adopts a plurality of distributed training devices, and can comprehensively and systematically conduct the training of photovoltaic installation, maintenance and debugging for relevant professionals of power grid enterprises. The fluorescent lamp of the photovoltaic generation simulation device is used to simulate sunlight with different illumination brightness. The photovoltaic module is used to receive the sunlight to generate DC power. The brightness of the fluorescent lamp can be adjusted by the dimming knob. The current, according to the brightness of the bulb, the generated voltage is also inconsistent, so that students can truly understand the working principle of the solar panel; the inverter of the simulated inverter device is connected to the computer, and some common inverters are simulated through computer control. Fault, when the DC voltage set by the computer is too low, you can press the PV module increase button to eliminate the fault. When the computer sets the fault of the module leakage or low insulation resistance, you can press the PV module decrease button to eliminate the fault, and train the trainees to deal with the fault. The inverter is connected to a voltmeter to detect that the inverter has AC output; the single-phase circuit installation panel can practice the installation training of the photovoltaic grid-connected single-phase circuit, and the three-phase circuit installation panel can practice the photovoltaic Grid-connected three-phase circuit installation training.

In addition, the surge protector is grounded to provide safety protection for the distributed photovoltaic power station access technology training device to ensure its safe operation. The lower part of the cabinet is provided with a cabinet door, and other accessories such as power supplies can be placed in the lower part of the cabinet, and it is convenient to install in the cabinet. The internal wiring also makes the appearance of the distributed photovoltaic power station access technology training device more beautiful, and the brake universal wheel set at the bottom of the box is convenient to move and can be fixed in one place, making it more convenient to use.

Description of drawings

Fig. 1 is the structural representation of the first embodiment of the present utility model;

Fig. 2 is the circuit diagram of the present utility model;

Fig. 3 is the structural representation of the third embodiment of the present utility model;

Fig. 4 is the structural representation of the fourth embodiment of the present utility model;

FIG. 5 is a schematic structural diagram of Embodiment 5 of the present invention.

Detailed ways

In order to better understand the present utility model, the content of the present utility model is further clearly described below in conjunction with the embodiments, but the protection content of the present utility model is not limited to the following embodiments. In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without one or more of these details.

Example 1

As shown in Figures 1-2, a multi-functional training cabinet for photovoltaic power station includes a cabinet body on which a photovoltaic generation simulation device 1, a simulation inverter device 2, a single-phase circuit attachment panel 3 and a three-phase circuit are arranged The panel 4 is attached. The photovoltaic generation simulation device 1 includes a photovoltaic assembly 1-1, a measurement terminal 1-2 and a fluorescent lamp 1-3. The fluorescent lamp 1-3 is arranged in front of the photovoltaic assembly 1-1. The photovoltaic assembly The positive and negative electrodes of 1-1 are respectively electrically connected to a measurement terminal 1-2;

The simulated inverter device 2 includes an inverter 2-1, a photovoltaic component increase button 2-2, a photovoltaic component decrease button 2-3, a voltmeter 2-4 and a computer, the photovoltaic component 1-1, the computer and the voltage Tables 2-4 are all electrically connected to the inverter 2-1, and the photovoltaic module increase button 2-2 and the photovoltaic module decrease button 2-3 are both electrically connected to the photovoltaic module 1-1;

The single-phase loop connection panel 3 includes a single-phase electric energy meter 3-1, an air switch I3-2, a special switch I3-3 for grid connection, a surge protector I3-4 and an isolation knife switch. The inverter 2 -1. Air switch I3-2, special switch for grid connection I3-3, surge protector I3-4, first isolation switch 3-5, single-phase electric energy meter 3-1, second isolation switch 3-6 Single-phase electrical connection in sequence;

The three-phase loop connection panel 4 includes a three-phase electric energy meter 4-1, an air switch II 4-2, a special switch II 4-3 for grid connection, a surge protector II 4-4 and an isolation knife switch. The inverter 2 -1. Air switch II4-2, special switch for grid connection II4-3, surge protector II4-4, third isolation switch 4-5, three-phase energy meter 4-1, fourth isolation switch 4-6 Three-phase electrical connection in sequence.

Specifically, the photovoltaic generation simulation device 1 further includes a dimming knob 1-4, the fluorescent lamp 1-3 is electrically connected to the dimming knob 1-4, and the two measurement terminals 1-2 are respectively connected to a The positive and negative electrodes of the multimeter, the surge protector I3-4 and the surge protector II4-4 are all connected to a ground terminal, and the ground terminal is electrically connected to the ground.

The multi-functional training cabinet of the photovoltaic power station of the embodiment of the present utility model, when in use, turn on the fluorescent lamp, turn the dimming knob to adjust the brightness of the fluorescent lamp, and measure the current generated by the photovoltaic components with a multimeter, so that the students can understand and master the system principle of photovoltaic power generation. Have a preliminary understanding and understanding of new energy; the inverter of the simulated inverter device is connected to the computer, and some common inverter faults are simulated through computer control. When the DC voltage set by the computer is too low, you can press the PV module increase button To troubleshoot, when the computer sets the component leakage or low insulation resistance fault, you can press the PV module reduction button to troubleshoot, train the students how to deal with the fault, improve the students' ability to deal with the fault, the inverter is connected to a voltmeter, It can simulate the working conditions of the inverter under different lighting conditions; the single-phase circuit mounting panel and the three-phase circuit mounting panel can simulate three grid-connected modes: residual grid connection, full grid grid connection, and grid connection without grid connection. , can directly train trainees in three modes of photovoltaic grid connection, and the training effect is good.

Embodiment 2

As shown in Figures 1-2, a multi-functional training cabinet for photovoltaic power station includes a cabinet body on which a photovoltaic generation simulation device 1, a simulation inverter device 2, a single-phase circuit attachment panel 3 and a three-phase circuit are arranged The panel 4 is attached. The photovoltaic generation simulation device 1 includes a photovoltaic assembly 1-1, a measurement terminal 1-2 and a fluorescent lamp 1-3. The fluorescent lamp 1-3 is arranged in front of the photovoltaic assembly 1-1. The photovoltaic assembly The positive and negative electrodes of 1-1 are respectively electrically connected to a measurement terminal 1-2;

The simulated inverter device 2 includes an inverter 2-1, a photovoltaic component increase button 2-2, a photovoltaic component decrease button 2-3, a voltmeter 2-4 and a computer, the photovoltaic component 1-1, the computer and the voltage Tables 2-4 are all electrically connected to the inverter 2-1, and the photovoltaic module increase button 2-2 and the photovoltaic module decrease button 2-3 are both electrically connected to the photovoltaic module 1-1;

The single-phase loop connection panel 3 includes a single-phase electric energy meter 3-1, an air switch I3-2, a special switch I3-3 for grid connection, a surge protector I3-4 and an isolation knife switch. The inverter 2 -1. Air switch I3-2, special switch for grid connection I3-3, surge protector I3-4, first isolation switch 3-5, single-phase electric energy meter 3-1, second isolation switch 3-6 Single-phase electrical connection in sequence;

The three-phase loop connection panel 4 includes a three-phase electric energy meter 4-1, an air switch II 4-2, a special switch II 4-3 for grid connection, a surge protector II 4-4 and an isolation knife switch. The inverter 2 -1. Air switch II4-2, special switch for grid connection II4-3, surge protector II4-4, third isolation switch 4-5, three-phase energy meter 4-1, fourth isolation switch 4-6 Three-phase electrical connection in sequence.

Specifically, the photovoltaic generation simulation device 1 further includes a dimming knob 1-4, the fluorescent lamp 1-3 is electrically connected to the dimming knob 1-4, and the two measurement terminals 1-2 are respectively connected to a The positive and negative electrodes of the multimeter, the surge protector I3-4 and the surge protector II4-4 are all connected to a ground terminal, and the ground terminal is electrically connected to the ground.

The multi-functional training cabinet of the photovoltaic power station of the embodiment of the present invention is different from the first embodiment in that: preferably, a battery pack is arranged in the lower part of the cabinet, and the battery pack is the computer and the fluorescent lamps 1-3. powered by. By using the battery pack provided in the cabinet as the power source, the use site of the distributed photovoltaic power station access technology training device can be free from power restrictions, and can also be used when the power is off, which is very convenient.

Embodiment 3

As shown in Figures 2-3, a multi-functional training cabinet for photovoltaic power station includes a cabinet body, on which a photovoltaic generation simulation device 1, a simulation inverter device 2, a single-phase circuit attachment panel 3 and a three-phase circuit are arranged The panel 4 is attached. The photovoltaic generation simulation device 1 includes a photovoltaic assembly 1-1, a measurement terminal 1-2 and a fluorescent lamp 1-3. The fluorescent lamp 1-3 is arranged in front of the photovoltaic assembly 1-1. The photovoltaic assembly The positive and negative electrodes of 1-1 are respectively electrically connected to a measurement terminal 1-2;

The simulated inverter device 2 includes an inverter 2-1, a photovoltaic component increase button 2-2, a photovoltaic component decrease button 2-3, a voltmeter 2-4 and a computer, the photovoltaic component 1-1, the computer and the voltage Tables 2-4 are all electrically connected to the inverter 2-1, and the photovoltaic module increase button 2-2 and the photovoltaic module decrease button 2-3 are both electrically connected to the photovoltaic module 1-1;

The single-phase loop connection panel 3 includes a single-phase electric energy meter 3-1, an air switch I3-2, a special switch I3-3 for grid connection, a surge protector I3-4 and an isolation knife switch. The inverter 2 -1. Air switch I3-2, special switch for grid connection I3-3, surge protector I3-4, first isolation switch 3-5, single-phase electric energy meter 3-1, second isolation switch 3-6 Single-phase electrical connection in sequence;

The three-phase loop connection panel 4 includes a three-phase electric energy meter 4-1, an air switch II 4-2, a special switch II 4-3 for grid connection, a surge protector II 4-4 and an isolation knife switch. The inverter 2 -1. Air switch II4-2, special switch for grid connection II4-3, surge protector II4-4, third isolation switch 4-5, three-phase energy meter 4-1, fourth isolation switch 4-6 Three-phase electrical connection in sequence.

Specifically, the photovoltaic generation simulation device 1 further includes a dimming knob 1-4, the fluorescent lamp 1-3 is electrically connected to the dimming knob 1-4, and the two measurement terminals 1-2 are respectively connected to a The positive and negative electrodes of the multimeter, the surge protector I3-4 and the surge protector II4-4 are all connected to a ground terminal, and the ground terminal is electrically connected to the ground.

The photovoltaic power station multifunctional training cabinet of the embodiment of the present invention is different from the first and second embodiments in that a cabinet door 5 is arranged at the lower part of the cabinet body, and a handle 6 with a lock is arranged on the cabinet door 5 . Open the cabinet door, and other accessories such as power supplies are placed in the lower part of the cabinet, and it is convenient to wire in the cabinet, so that the appearance of the distributed photovoltaic power station access technology training device is more beautiful, and the lock handle on the cabinet door is convenient for opening and closing. It is safe and reliable to prevent non-professionals from opening the cabinet.

Embodiment 4

As shown in Figures 2 and 4, a multifunctional training cabinet for a photovoltaic power station includes a cabinet body, on which a photovoltaic generation simulation device 1, a simulation inverter device 2, a single-phase loop connection panel 3 and a three-phase circuit are installed. The circuit attachment panel 4, the photovoltaic generation simulation device 1 includes a photovoltaic module 1-1, a measurement terminal 1-2 and a fluorescent lamp 1-3, the fluorescent lamp 1-3 is arranged in front of the photovoltaic module 1-1, and the photovoltaic The positive and negative electrodes of the component 1-1 are respectively electrically connected to a measurement terminal 1-2;

The simulated inverter device 2 includes an inverter 2-1, a photovoltaic component increase button 2-2, a photovoltaic component decrease button 2-3, a voltmeter 2-4 and a computer, the photovoltaic component 1-1, the computer and the voltage Tables 2-4 are all electrically connected to the inverter 2-1, and the photovoltaic module increase button 2-2 and the photovoltaic module decrease button 2-3 are both electrically connected to the photovoltaic module 1-1;

The single-phase loop connection panel 3 includes a single-phase electric energy meter 3-1, an air switch I3-2, a special switch I3-3 for grid connection, a surge protector I3-4 and an isolation knife switch. The inverter 2 -1. Air switch I3-2, special switch for grid connection I3-3, surge protector I3-4, first isolation switch 3-5, single-phase electric energy meter 3-1, second isolation switch 3-6 Single-phase electrical connection in sequence;

The three-phase loop connection panel 4 includes a three-phase electric energy meter 4-1, an air switch II 4-2, a special switch II 4-3 for grid connection, a surge protector II 4-4 and an isolation knife switch. The inverter 2 -1. Air switch II4-2, special switch for grid connection II4-3, surge protector II4-4, third isolation switch 4-5, three-phase energy meter 4-1, fourth isolation switch 4-6 Three-phase electrical connection in sequence.

Specifically, the photovoltaic generation simulation device 1 further includes a dimming knob 1-4, the fluorescent lamp 1-3 is electrically connected to the dimming knob 1-4, and the two measurement terminals 1-2 are respectively connected to a The positive and negative electrodes of the multimeter, the surge protector I3-4 and the surge protector II4-4 are all connected to a ground terminal, and the ground terminal is electrically connected to the ground.

The multifunctional training cabinet of the photovoltaic power station of the embodiment of the present invention is different from the first, second and third embodiments in that: the bottom of the cabinet is provided with a universal wheel 7 with a brake. The cabinet is more portable to move, and the cabinet can be fixed in one place for flexible use.

Embodiment 5

As shown in Fig. 5, a multi-functional training cabinet for photovoltaic power station includes a cabinet body, on which a photovoltaic generation simulation device 1, a simulation inverter device 2, and a single-phase loop attachment panel 3 are arranged. The device 1 includes a photovoltaic assembly 1-1, a measuring terminal 1-2 and a fluorescent lamp 1-3, the fluorescent lamp 1-3 is arranged in front of the photovoltaic assembly 1-1, and the positive and negative electrodes of the photovoltaic assembly 1-1 are respectively electrically connected a measurement terminal 1-2;

The simulated inverter device 2 includes an inverter 2-1, a photovoltaic component increase button 2-2, a photovoltaic component decrease button 2-3, a voltmeter 2-4 and a computer, the photovoltaic component 1-1, the computer and the voltage Tables 2-4 are all electrically connected to the inverter 2-1, and the photovoltaic module increase button 2-2 and the photovoltaic module decrease button 2-3 are both electrically connected to the photovoltaic module 1-1;

The single-phase loop connection panel 3 includes a single-phase electric energy meter 3-1, an air switch I3-2, a special switch I3-3 for grid connection, a surge protector I3-4 and an isolation knife switch. The inverter 2 -1. Air switch I3-2, special switch for grid connection I3-3, surge protector I3-4, first isolation switch 3-5, single-phase electric energy meter 3-1, second isolation switch 3-6 Single-phase electrical connection in sequence;

The photovoltaic generation simulation device 1 further includes a dimming knob 1-4, the fluorescent lamp 1-3 is electrically connected to the dimming knob 1-4, and the two measurement terminals 1-2 are respectively connected to the positive terminal of a multimeter. , negative, the surge protector I3-4 and the surge protector II4-4 are both connected to a ground terminal, and the ground terminal is electrically connected to the ground.

A cabinet door 4 is arranged at the lower part of the cabinet body, and a handle 5 with a lock is arranged on the cabinet door 5 .

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention are not departing from the technical solutions of the present invention. The spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims (7)

1. A multifunctional training cabinet for a photovoltaic power station, comprising a cabinet body, characterized in that: a photovoltaic generation simulation device, a simulation inverter device, a single-phase loop attachment panel and a three-phase loop attachment panel are arranged on the cabinet body, so that the The photovoltaic generation simulation device includes a photovoltaic component, a measuring terminal and a fluorescent lamp, the fluorescent lamp is arranged in front of the photovoltaic component, and the positive and negative electrodes of the photovoltaic component are respectively electrically connected to a measuring terminal; The simulated inverter device includes an inverter, a photovoltaic component increase button, a photovoltaic component decrease button, a voltmeter and a computer, the photovoltaic components, the computer and the voltmeter are all electrically connected to the inverter, and the photovoltaic component increases Both the button and the photovoltaic component reduction button are electrically connected to the photovoltaic component; The single-phase loop connection panel includes a single-phase electric energy meter, an air switch I, a special switch I for grid connection, a surge protector I and an isolation knife switch, the inverter, the air switch I, the special switch I for grid connection I, The surge protector I, the first isolation switch, the single-phase electric energy meter, and the second isolation switch are electrically connected in sequence; The three-phase loop connection panel includes a three-phase electric energy meter, an air switch II, a special switch II for grid connection, a surge protector II and an isolation knife switch, the inverter, the air switch II, the special switch II for grid connection, The surge protector II, the third isolation switch, the three-phase electric energy meter, and the fourth isolation switch are electrically connected in three phases in sequence. 2 . The multifunctional training cabinet of a photovoltaic power station according to claim 1 , wherein the photovoltaic generation simulation device further comprises a dimming knob, and the fluorescent lamp is electrically connected to the dimming knob. 3 . 3 . The multifunctional training cabinet of a photovoltaic power station according to claim 2 , wherein the two measurement terminals are respectively connected to the positive and negative electrodes of a multimeter. 4 . 4 . The multifunctional training cabinet of a photovoltaic power station according to claim 3 , wherein the surge protector I and the surge protector II are both connected to a ground terminal, and the ground terminal is electrically connected to the ground. 5 . 5 . The multifunctional training cabinet of a photovoltaic power station according to claim 4 , wherein a battery pack is arranged in the lower part of the cabinet, and the battery pack supplies power to the computer and the fluorescent lamp. 6 . 6 . The multifunctional training cabinet of a photovoltaic power station according to claim 5 , wherein a cabinet door is arranged at the lower part of the cabinet body, and a handle with a lock is arranged on the cabinet door. 7 . 7 . The multifunctional training cabinet of the photovoltaic power station according to claim 6 , wherein the bottom of the cabinet is provided with a universal wheel with a brake. 8 .

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