What is a portable solar cell tester?

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.

The BK-PV31 portable IV tester adopts one-piece packaging technology, with clear operation interface function instructions, one key detection data export, and a single component/string detection speed of 10 seconds. The fast, accurate, and comprehensive detection function can be used as an optional device for third-party detection institutions 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 areas

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

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 Industry Standards

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

◎ IEC 61215-2005 Crystalline Silicon Photovoltaic Modules for Ground Use - Design Qualification and Type Approval

◎ 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 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

BK-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 the components and compare them.

7. IV compensation function

Outdoor validation of photovoltaic cells and outdoor performance testing of photovoltaic cells during the experimental stage of 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

BK-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

BK-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 BK-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 comprehensive parameter setting functions 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 reliable safety assurance for users. 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 interfaces to provide various extended online functions.