Current voltage power curve detector

The current voltage power curve detector is a precision testing equipment for industries such as electronics, photovoltaics, and new energy. Its core function is to accurately apply voltage/current excitation, synchronously capture the dynamic changes in current, voltage, and power, draw complete IV characteristic curves and power curves, quantify device electrical performance parameters, and provide data support for product development, quality control, operation and maintenance. Compared with ordinary IV testers, it has added real-time power calculation and curve synchronization analysis functions, realizing the "current voltage power" three in one detection, adapting to the full scenario requirements from laboratory research and development to outdoor operation and maintenance, becoming the core equipment to solve the problem of electrical performance testing and promote industrial quality and efficiency improvement.

1、 Product Introduction

The product is a photovoltaic module IV curve tester, which can accurately detect the power generation efficiency and conversion rate of components and strings within the 1500V range. It can quickly detect the working characteristics of photovoltaic strings under natural light. The equipment is easy to operate, portable, and equipped with high-precision irradiance meters and temperature sensors, which can provide accurate on-site irradiance values and environmental temperature parameters.

JD-PV31Current voltage power curve detectorAdopting one-piece packaging technology, the operation interface function is clearly explained, with one key detection data export. Single component/string detection can be completed in 10 seconds, and the fast, accurate, and comprehensive detection function can be used as an optional configuration for third-party detection agencies and power station operation and maintenance. The whole machine is equipped with high-precision capacitive/resistive loads, as well as a faster radiometer operation module and corresponding IV curve analysis software. It can analyze IV curves more clearly and has the advantage of continuous IV uninterrupted scanning, which helps to detect the entire photovoltaic power plant system.

2、 Product Information

1. Application Fields

1) Single component testing, string testing, irradiation testing, power generation testing

2. Testeable performance indicators

Shadow occlusion, dust attenuation, STC comparison, fill factor, IV curve, maximum power, maximum power voltage

Maximum power current, irradiance, ambient temperature, component temperature, PV curve, conversion efficiency, power generation

3、 Product advantages

1. High precision curve testing from 10 to 1500V

Using our company's new resistive testing module, single component detection is more accurate, capable of testing up to 1500V series IV curve testing and 30A series parallel testing.

2. STC nominal parameter conversion test

IV testing matches over 95% of the current photovoltaic panel specifications, enabling faster switching of different component parameters and automatic calculation of the current power generation efficiency and conversion rate of the panel, helping users to more accurately understand the true parameters of the components.

3. String testing

The string testing of photovoltaic power plants can quickly test the power generation efficiency, short circuit, power generation, etc. of the entire photovoltaic string, and quickly screen the electrical performance between different strings.

4. Single component testing

The JD-PV31 portable IV curve tester has the function of component power generation testing, which can adapt to the component identification testing specified in IEC61853 currently used in Europe and America, or be used for local lighting resource detection.

The tester provides a high-resolution testing mode of up to 400 points and Ethernet monitoring function that complies with the Modbus/TCP protocol, meeting the needs of scientific research.

5. National standard industry benchmark

The equipment complies with international and industry standards and can serve as a third-party measurement basis.

◎ IEC 61215-2005 Identification and finalization of ground crystalline silicon photovoltaic module design

◎ IEC 61646-2008 Design and Qualification Specification for Surface Thin Film Batteries

CGC/GF003.1:2009 Technical Specification for Acceptance of Parallel Photovoltaic Power Generation System Engineering Part 1: Electrical Equipment

GB4793.1-2007/IEC 60010-1 Safety requirements for testing, control and laboratory electrical and gas equipment

Requirements for IEC60904-2 2007 standard solar cells

◎ IEC60891-2009 Temperature and irradiance correction method for the IV measured characteristics of photovoltaic devices

6. Continuity testing

JD-PV31 can continuously test the IV data of photovoltaic cells, with automatic detection every 20 seconds, which can help users continuously monitor various performance parameters of components and compare them.

7. IV compensation function

Outdoor validation of photovoltaic cells and outdoor performance testing of photovoltaic cells during the experimental stage suitable for engineering applications.

8. Environmental monitoring function

It has environmental temperature detection, solar panel temperature detection, solar irradiance detection and other environmental detection functions, and can provide users with optional radiometer matching.

9. Long lasting battery life

JD-PV31 provides a built-in high-capacity lithium battery module, which can be easily replaced and has a continuous battery life of up to 8H, providing sufficient charging power for testing.

10. Range switching

JD-PV31 can automatically switch the testing range for different specifications of components/strings to provide a more accurate testing range and provide overvoltage and overcurrent protection.

11. High scalability

The JD-PV31 internal unit reliably stores over 2000 test waveforms and provides an SD card slot for expandable storage space. It can synchronize host data storage with PC software analysis through USB.

12. Photovoltaic module correction database

Built in rich database of solar cell module correction models, covering the products of most module manufacturers, providing reference for the conversion ratio of test results and offering users a comprehensive parameter setting function that can be manually added.

13. High voltage isolation design is safer

The device is equipped with a high-voltage adjacent power supply design, providing users with reliable safety assurance. The maximum open circuit voltage testing range can reach 1500V, and it provides up to 30KW photovoltaic array testing function.

14. Touchscreen panel operation

The host operation panel adopts a touch screen and keyboard operation mode, and the bright LCD screen can display more clearly in sunlight. The whole machine includes rich peripheral connections to provide various extended online functions.

test

1. Single component testing

The portable IV curve tester JD-PV31 has the function of component power generation testing, which can adapt to component identification testing or be used for local lighting resource detection. The tester provides a high-resolution testing mode of up to 400 points and Ethernet monitoring function that complies with the Modbus/TCP protocol, meeting the needs of scientific research.

2. String testing

The string testing of photovoltaic power plants can quickly test the power generation efficiency, short circuit, power generation, etc. of the entire photovoltaic string, and quickly screen the electrical performance between different strings.

Radiation testing

3. STC nominal parameter conversion test

IV testing, matching over 95% of current photovoltaic panel specifications, enabling faster switching of component parameters between different specifications, and automatically calculating the current power generation efficiency and conversion rate of the panel.

4. Continuity testing

Continuous testing of photovoltaic cell IV data, with automatic detection every 20 seconds, can help users continuously monitor various performance parameters of the components and compare them.

5. IV compensation function

It can truly support the outdoor verification of photovoltaic cells and adapt to the experimental stage of engineering applications for outdoor performance testing of photovoltaic cells.

6. Environmental monitoring function

It has environmental temperature detection, solar panel temperature detection, solar irradiance detection and other environmental detection functions, and can provide users with optional radiometer matching.

4、 Operation process

1. Installation of irradiance meter horizontal photovoltaic panel facing sunlight

2. Temperature sensor patch component backplate

3. During real-time power testing, the component/string power should be less than the device power

4. During STC power testing, the maximum current and voltage of components/strings must be less than the maximum range of the equipment

5. Please test the photovoltaic panel at an irradiance of 700 or above to ensure accuracy

6. The testing interval is greater than 1 minute to ensure that the equipment completes the discharge

4、 Host parameters

1. Overall parameters

Equipment overall diagram

Equipment control interface

2. Specification parameters

Category values

Voltage measurement range 10V~1500V

Measurement accuracy 0.1V

Test accuracy ± 0.5% ± 0.2V

Current measurement range 0.01A~30A

Measurement accuracy 0.001A

Test accuracy ± 0.5%+0.02A

Maximum power test repeatability accuracy ± 0.5% ± 3W

Maximum power test range: 50W-45KW

Conversion to STC with maximum power accuracy better than ± 5%

Temperature environment temperature measurement range -30 ° C~100 ° C

Battery temperature measurement range -30 ° C~100 ° C

Temperature testing accuracy ± 1 ℃

Range of irradiance measurement: 0-1800W/m2

The accuracy of irradiance measurement is better than ± 3%

Software testing cycle of 20 seconds

2048 data points

Data storage>2000 numerical values

Continuity test for 20 seconds

Universal database of photovoltaic module models

Online expansion allows for multiple IV online tests to be compared and universal

Hardware specifications

Category values

Host parameter expansion storage SD card

Display screen 640x480, 6.5-inch LED

Power supply method: built-in lithium battery/power adapter

Battery parameters 14.8V/4400mAh

Battery life of 8 hours

Size 390x300x200mm

Weight 5.8kg

Working temperature -10 ° C~50 ° C

Storage temperature -20 ° C~60 ° C

Humidity 5-95% RH

Main radiometer parameters

Overall Equipment Diagram

Radiation measurement range 50 to 1400 W/m2

Resolution 1 W/m2

Measurement accuracy ± (5%+5 digits)

Temperature measurement environment temperature measurement range -30 ℃~100 ℃ (-22 ° F to 212 ° F)

Resolution 0.1 ℃ (0.2 ° F/1 ° F at>100 ° F)

Test accuracy ± 1 ℃ (± 2 ° F) (under conditions of -10 ℃ to 75 ℃ (14 ° F to 167 ° F)),+2 ℃ (± 4 ° F) (under conditions of -30 ℃ to -10 ℃ (-22 ° F to 14 ° F), and 75 ℃ to 100 ° C (167 to 212 ° F))

Tilt angle measurement range -90 °~90 °

Resolution 0.1 °

Measurement accuracy ± 1.5 ° (under -50 ° to+50 ° conditions) ± 2.5 ° (under -85 ° to -50 ° and+50 ° to+85 ° conditions) ± 3.5 ° (under -90 ° to -85 ° and+85 ° to+90 ° conditions)

Compass measurement range 0 ° to 360 °

Resolution 1 °

Measurement accuracy ± 7 °

Note: a) The measured values are applicable for equipment tilt ranges from -20 ° and+20 "to horizontal. When it exceeds this range, the LCD displays "---" and the result is called magnetic north.

The working temperature of IRR1-SOL is -20 ℃ to 50 ℃ (-4 ° to 122 ° F) (humidity<80%), without condensation

The working temperature of 80PR-IRR is -30 ℃ to 60 ℃ (-22 ℉ to 140 ° F) (humidity<80%)

Storage temperature -30 ℃ to 60 ℃ (-22 ℉ to 140 ° F) (humidity<80%)

Altitude from 0 m to a maximum of 2000 m

6、 Accessories List

Number Name Specification Quantity Unit

1 host instrument testing host 1 unit

2 radiation meters standard 1 unit

3 temperature probe kits, 1 temperature sensor set

4 power adapter standard 1

5 Test Set Banana Head Test Line+4 Crocodile Pliers

1 set of 6 user manual standards

7 sets of after-sales data, warranty card, certificate of conformity, etc