DYXNY-04G Photovoltaic Power Generation Training System Training Platform

Release time：2024-07-04 14:30viewed：times

1. Equipment composition The
photovolt*c power generation tr*ning system m*nly consists of four parts: photovolt*c power supply device, photovolt*c power supply system, inverter and load system, and monitoring system, as shown in Figure 1.
1. Equipment size: photovolt*c power supply device 1610×1010×1550mm
tr*ning cabinet 1000×1000×2000mm
2. Site area: 12 square meters
2. Introduction to each unit
1. Photovolt*c power supply device
(1) Composition of photovolt*c power supply device The
photovolt*c power supply device m*nly consists of photovolt*c cell components, projection lamps, light sensors, light sensor control boxes, horizontal and pitch direction motion mechanisms , swing arms, swing arm reducers, swing arm brackets, single-phase AC motors, capacitors, DC motors, proximity switches, micro switches, base brackets and other equipment and devices.
Four photovolt*c cell components are connected in parallel to form a photovolt*c cell array, and the light sensor is installed in the center of the photovolt*c cell array. Two 300W projection lamps are installed on the swing arm bracket, the bottom of the swing arm is connected to the output end of the reducer, and the input end of the reducer is connected to the single-phase AC motor. When the motor rotates, the gearbox drives the pendulum to swing in a circle. The connection part between the bottom end of the pendulum and the base bracket is equipped with a proximity switch and a micro switch for limiting and protecting the position of the pendulum. The horizontal and pitching direction movement mechanism consists of a horizontal movement gearbox, a pitching movement gearbox, a DC motor, a proximity switch and a micro switch. When the DC motor rotates, the horizontal movement gearbox drives the photovolt*c cell array to move horizontally in the east or west direction, and the pitching movement gearbox drives the photovolt*c cell array to move in the north or south direction. The proximity switch and the micro switch are used for limiting and protecting the position of the photovolt*c cell array.
2. Photovolt*c power supply system
(1) Composition of photovolt*c power supply system The
photovolt*c power supply system m*nly consists of a photovolt*c power supply control unit, a photovolt*c output display unit, a touch screen, a photovolt*c power supply control unit, an ARM control unit, an interface unit, a Siemens S7-200 plc , a relay group, a terminal block, a battery group, an adjustable resistor, a circuit breaker, a 12V switching power supply, a mesh frame, etc.
(2) Control method
The photovolt*c power control unit is m*nly composed of a circuit breaker, a +24V switching power supply, an AC220V power socket, an indicator light, and terminal blocks DT1 and DT2.
The photovolt*c output display unit is m*nly composed of a DC ammeter, a DC voltmeter, and terminal blocks DT3 and DT4.
The photovolt*c power supply control unit is m*nly composed of a selection switch, an emergency stop button, a button with light, and terminal blocks DT5, DT6, and DT7.
(3) ARM control unit and interface unit
The charging process and charging protection of the battery are completed by the ARM control unit, the interface unit, and the program. The discharge protection of the battery is completed by the ARM control unit, the interface unit, and the relay. When the battery discharge voltage is lower than the specified value, the ARM control unit outputs a signal to drive the relay to work, and the normally closed contact of the relay is disconnected, cutting off the discharge circuit of the battery.
(4) Battery pack
The battery pack uses 4 valve-controlled sealed lead-acid batteries.
3. Inverter and load system
(1) Composition of the inverter and load system The
inverter and load system m*nly consists of an inverter power control unit, an inverter output display unit, an inverter, an inverter parameter detection module, a frequency converter, a three-phase AC motor , a LED stage lighting module, a warning light, a terminal block, a circuit breaker, a mesh frame, etc.
① Inverter power control unit The
inverter power control unit m*nly consists of a circuit breaker, a +24V switching power supply, an AC220V power socket, an indicator light, and terminal blocks DT14 and DT15.
② Inverter output display unit The
inverter output display unit m*nly consists of an AC ammeter, an AC voltmeter, and terminal blocks DT16 and DT17.
(2) Inverter An inverter
is a device that converts a low-voltage DC power supply into a high-voltage AC power supply. There are many types of inverters, and their specific working principles and working processes are different. The inverter used in this tr*ning device consists of a DC-DC boost PWM control chip unit, a drive + boost power MOS tube unit, a boost transformer, an SPWM chip unit, a high-voltage driver chip unit, a full-bridge inverter power MOS tube unit, and an LC filter.
4. Monitoring system
(1) Monitoring system composition
The monitoring system m*nly consists of an integrated machine, a keyboard, a mouse, a terminal block, a power socket, a communication line, a Microsoft operating system software, and a force control configuration software.
(2) Monitoring system functions
1) Communication
The monitoring system communicates with the controller, PLC, and instrumentation.
2) Interface
① The monitoring system has a m*n interface, a photovolt*c power supply system interface, an inverter and load system interface, and a photovolt*c energy conversion interface, which display their respective operating status parameters.
② The photovolt*c power supply system interface sets corresponding buttons to realize automatic tracking of the photovolt*c cell array.
③ It has a photovolt*c power generation collection report, which records the photovolt*c output voltage and current; the inverter output voltage, current, power and other data of the inverter and load system and prints data reports.
5. Virtual simulation software for electrical installation of building and intelligent building Designed based on Unity3D, users can choose different sizes of interactive interface according to computer configuration, and can choose six levels of image quality. The model in the software can be rotated 360°, enlarged, reduced, and translated. There are assistant prompts during the use of the software, as follows:

A. Wet alarm system
1. System overview: Overview of wet alarm system
2. Equipment recognition: It is equipped with the best viewing angle, equipment det*ls (displaying the introduction or parameters of the equipment), exercises (built-in 6 multiple-choice questions, with prompts for correct and incorrect choices), and schematic diagrams (you can enter the equipment from the schematic diagram). The equipment includes: sprinklers, water flow indicators, signal butterfly valves, exhaust valves, fire alarm controls, high-pressure gauges, high-level water tanks, Wia control cabinets, pressure-stabilizing tanks, flow switches, terminal water testing devices, dr*nage facilities, water pump connectors, hydraulic alarms, time delays, wet alarms, butterfly valves, check valves, fire pumps, safety pressure-stabilizing valves, and fire water tanks.
3. Principle display: Displays the working principle of the wet alarm system, 3D animation demonstrations, and semi-transparent 3D models , so you can see the internal water flow. Equipped with practice module (built-in 4 multiple-choice questions, with prompts for correct and wrong choices)
4. Design layout: There are multiple-choice questions and calculation questions, each of which is scored, and the correct answer and score will be displayed after submission
B. Gas fire extinguishing system
1. System overview: Overview of gas fire extinguishing system
2. Equipment cognition: It is equipped with the best viewing angle, equipment det*ls (displaying the introduction or parameters of the equipment), practice (built-in 8 multiple-choice questions, with prompts for correct and wrong choices), schematic diagram (you can enter the equipment from the schematic diagram). The equipment includes: nozzle, HFC-227 storage bottle, bottle head valve, heptafluoropropane check valve, high-pressure hose, gas check valve, safety valve, weighing alarm, electromagnetic starter, selection valve, smoke alarm, fire alarm controller.
3. Principle display: Display the working principle of the gas fire extinguishing system, 3D animation demonstration, 3D model is semi-transparent, and the internal gas can be seen. Equipped with practice module (3 multiple-choice questions built-in, with prompts for correct and wrong choices)
4. Design layout: There are 6 multiple-choice questions, each with a score, and the correct answer and score will be displayed after submission
C. Escape drill: Teaching in the form of fun games, escaping from the burning room within a limited time, and wrong choices will directly enter the score interface.
III. M*n experimental tr*ning content
The experimental tr*ning content involves the installation, wiring, debugging and analysis of photovolt*c power supply devices, photovolt*c power supply systems, inverters and load systems, and monitoring systems:
1) Installation and wiring of photovolt*c power supply devices;
2) Installation, wiring and debugging of some components of photovolt*c power supply systems;
3) Output characteristic test of photovolt*c cell arrays;
4) Test of battery pack charging and discharging parameters;
5) Installation, wiring and debugging of some components of inverter and load systems;
6) Inverter related parameter test, inverter output parameter test;
7) Welding of related circuit modules;
8) Communication between the monitoring system and each unit;
9) Operation of the configuration interface of the monitoring system;
IV. M*n technical parameters

1. Photovolt*c power supply device
Serial number	name	Technical Parameters	quantity
1	Battery components	Power: 20W Error: ±5% Output voltage: 17.2V Output current: 1.17A Open circuit voltage: 21.4V Short circuit current: 1.27A Working environment temperature: 45℃±2℃ Dimensions: 430×430×28mm	4
2	Sun tracking sensor	Output voltage: 0-5V Tracking accuracy: 1 degree Structure: 4 bridges	1
3	Spotlight	Swing arm mechanism: worm gear structure (2 reduction boxes) Voltage: 220V Frequency: 50Hz Current: 1.36A Maximum power: 300W	2
4	Sun Chaser	Structure: Worm gear structure (reduction box) Drive: DC motor Number of axes: Dual axes, two dimensions	1
2. Photovolt*c power supply system
Serial number	name	Technical Parameters	quantity
1	Power Control Unit	Including leakage protection circuit breaker, AC220V and DC24V status indicator lights, power socket	1
2	Photovolt*c control power unit	With leakage protection circuit breaker, AC220V and DC24V status indicator	1
3	touchscreen	7",Color	1
4	Charge and discharge controller	Core board, interface board, signal processing board	1
5	DC input unit	Ammeter: PA1951-AK1G, DC 0-5A Voltmeter: PZ195U-AK1G, DC 0-500V Interface: RS485	1
6	Photovolt*c power supply control unit	Solar panel tracking direction: East, South, West, North Floodlight control: Light 1, Light 2Floodlight movement direction: East-West, West-East, Stop Automatic control: Start, Emergency Stop	1
8	PLC	S7-200 CPU226	1
9	Adjustable resistance	Range: 0-1000Ω, steplessly adjustable (with scale)	1
3. Inverter and load system
Serial number	name	Technical Parameters	quantity
1	Inverter output display unit	Ammeter: AC 0-5A Voltmeter: AC 0-500V Interface: RS485	1
2	Inverter control power supply unit	With leakage protection circuit breaker, AC220V and DC24V status indicator	1
3	Inverter	Input voltage: DC12V Input voltage range: DC9.5V-15.5V Output voltage: AC180~220V adjustable ±5% Rated output current: 1.4A Output frequency: 50Hz~60Hz adjustable ±0.5Hz Rated power: 300VA Output waveform: sine wave Waveform distortion: <5% Conversion efficiency: >85%	1
4	Switching Power Supply	Model: DR-120-24 Input voltage: AC 220V Output voltage: DC 24V Output current: 5A	1
5	Frequency Converter	FR-D720S-0.4K-CHT	1
6	Motor load	Power: 20W Voltage: AC220V Speed: 1300rpm	1
7	Simulating stage lighting loads	Light-emitting module with diode lettering "KNT"	1
8	Valve-regulated sealed lead-acid battery	Capacity 12V 18Ah/20HR Weight 1.9kg Dimensions 345mm×195mm×20mm	2
4. Monitoring system
Serial number	name	Technical Parameters	quantity
1	Industrial Computer	5 serial ports, including keyboard and mouse	1
2	Configuration Software	Force Control 6.1	1
5. Experimental bench
Serial number	name	Technical Parameters	quantity
1	Mesh plate	The basic structure of the vertical mesh plate: the tool box + 4 wheels at the bottom, and the vertical mesh plate at the top Size: 800 (length) × 600 (width × 2000 (height) External frame composition: aluminum alloy profile; embedded spray-coated steel plate Steel plate size: 1200mm × 820mmSteel plate thickness: 2mmSteel plate hole specifications: upper hole size 6 × 10mmThe mesh plate is equipped with a push-pull drawer, which adopts a profile frame and a 2mm steel plate bottom; the bottom of the mesh frame is equipped with a pulley.	3 in 1
2	Microsoft operating system software	Windows XP	1
3	Communication Cable	0.3mm² two-core shielded wire	1
4	Experimental Instructions	Photovoltc power generation equipment trning guide	1

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