Nippon Kernel System CO., LTD. List of Products and Services

Under the title "What the Japan Kernel System Can Do," we will introduce our company's "technology" and "commitment to product creation" in a series. This time, the theme is "What are surge voltage and undervoltage protection tests?"

• Other embedded systems (software and hardware)
• Solar power generator

■Sensitivity current test ■Operating time test ■Single-phase fault operation overvoltage test ■High-frequency superposition test ■Frequency sweep test, etc., are conducted automatically! Since manual machine operation is not required, the test results do not vary depending on the tester, which helps prevent the personalization of tests. ●Complies with JIS C 8201-2-2 (IEC 60947-2) standard tests ●Select the test items to be conducted via software and input the test conditions to automatically perform the tests ●Achieves a speed test from start to finish, including result display, in as fast as 5.5 seconds ●Test results are automatically converted to CSV format, allowing for time-saving in report management ●Real-time measurement of test current, voltage, and time using a power meter and waveform recorder. After completion, the values at the trip time and the waveforms before and after the trip are displayed on the software screen ●The test circuit and measurement values are displayed on the software screen, enabling smooth testing while understanding the circuit configuration.

• Testing Equipment and Devices
• Circuit breakers and switches

Various tests in accordance with the system interconnection regulations can be conducted automatically at our testing facility using the "System Interconnection Automated Testing Software." Additionally, it is possible to create test programs based on your company's optional tests and conduct them automatically. We also support remote output control function testing. Testing without code is possible using our new product, "Test Script Creation Software." Test results are output as Excel files, in addition to detailed display and verification of waveform data on the software screen. You can send us the equipment to be tested, and we can conduct the tests on your behalf. We also accept estimates for building similar testing environments. 【Please use our services if you: 】 ● Do not have a testing environment in-house and cannot conduct operational tests ● Want to confirm the performance of your development products before certification testing ● Want to improve the performance of your development products ● Do not know specific testing methods or evaluation criteria ● Want to confirm the benefits of automated testing ● Lack testing environments or personnel for testing

• Testing Equipment and Devices
• Inverter
• Solar power generator

Under the title "What the Japanese Kernel System Can Do," we will introduce our company's "technology" and "commitment to product creation" in a series. This time, the theme is the testing environment and protective operation of power conditioners.

• Other embedded systems (software and hardware)
• Solar power generator

Three-phase identical output, individual output for each phase, and detailed settings are possible to accommodate various tests.

• Signal Generator

This is a test system for evaluating various characteristics of power conditioners. It is suitable for evaluation tests during research and development as well as for product quality inspections. It can accommodate domestic standalone operation tests, voltage rise suppression tests, constant time engagement tests after power restoration, FRT tests, and other overseas testing standards.

• Solar power generator
• Testing Equipment and Devices

This is a system that incorporates in-house developed equipment. Custom-made products and systems can be developed according to the application. We develop outdoor measurement systems for various types of solar cells, from individual cells to string level (Max. 1500V). Systems using MPPT loads can also be constructed in environments where grid connection is not possible.

• Other electronic measuring instruments
• Solar power generator

Under the title "What the Japanese Kernel System Can Do," we will introduce our company's "technology" and "commitment to product creation" in a series. This time, the theme is about the functions of power conditioners.

• Other embedded systems (software and hardware)
• Solar power generator

This is an innovative no-code tool for testing power conditioners (PCS) that significantly improves the work efficiency related to the performance evaluation of highly specialized grid-connected inverters and distributed energy resources (DER). It can be used as one of the components of a grid connection testing platform, or independently. The software centrally manages the operation of multiple simulated power sources and measuring instruments required for testing, allowing the creation of test scripts (files that describe the testing procedures) through intuitive block operations. Additionally, by simply loading the created "test script" into the "grid connection automatic testing software" within the "grid connection testing platform," the execution of tests and output of results are automatically performed. ● Complex equipment operations can be visualized and manipulated through blocks ● Changing test conditions is easy by rearranging blocks ● Integrated control compatible with equipment from multiple manufacturers ● Contributes to the standardization of testing processes and the elimination of individual reliance.

• Testing Equipment and Devices
• Inverter
• Solar power generator

It consists of a Decoupling Network to eliminate noise from the DC power supply used in the test, an Array Impedance to simulate the impedance of the PV array, and a Line Impedance to simulate the circuit from the PV to the power converter.

• Circuit breakers and switches
• Testing Equipment and Devices

Specifically, the following three tests can be conducted: operating time test, sensitivity current test, and leakage current operation test (only power switching and time measurement).

• Testing Equipment and Devices
• Circuit breakers and switches

- Test system for detailed performance evaluation of various circuit breakers - Confirming whether the circuit breaker properly performs the tripping operation when subjected to overcurrent - Applying the specified leakage current to verify whether the residual current device operates correctly - Test system for conducting standard tests as specified in JIS C8201-2-2: 2021 - Filters and load devices used for standard tests as specified in IEC63027

• Testing Equipment and Devices
• Circuit breakers and switches

In similar systems developed by our company, cases often use an I-V curve tracer (our product: PV Analyzer), but this system does not use the expensive PV Analyzer; instead, it automatically and continuously collects power generation data (current, power, voltage) and weather data using an MPPT electronic load device and a data logger.

• Other electronic measuring instruments

In addition to measuring the power generation quadrant characteristics of solar cells, measuring the reverse voltage quadrant characteristics allows for accurate short-circuit current (Isc) measurements and also enables the measurement of bypass diode characteristics within the solar cells. We will configure a solar cell evaluation system centered around this device to meet customer requirements. We can also propose systems such as measurement systems in an open state and grid-connected measurement systems using power conditioners. ◆ The electronic load and reverse voltage application function allow for I-V curve checks in both the power generation quadrant and the reverse voltage quadrant. ◆ The sweep direction is variable: short-circuit to open-circuit, open-circuit to short-circuit, etc. ◆ The sweep time is variable: 150 [ms] to 1000 [ms]. ◆ I-V curves can be checked on-site using a high-resolution color monitor. ◆ Measurements can be taken from a single special solar cell (CPV). ◆ Clear graph displays are achieved through 1024-point measurements. * For more details, please download the PDF or feel free to contact us. * Demo units are also available for loan, so please get in touch.

• Other electronic measuring instruments

This system uses multiple PV analyzers "Delta" and measures approximately 30 pieces in total, including mini modules and full-size modules, while switching with a PV scanner.

• Other electronic measuring instruments

Under the title "What the Japan Kernel System Can Do," we will introduce our company's "technology" and "commitment to product development" in a series. We will discuss recommended customizations for measuring small-output solar cells, such as prototypes.

• Other electronic measuring instruments

The world's largest power conditioner (PCS) testing facility located in Koriyama City, Fukushima Prefecture, is undergoing an enhancement project at the Smart System Research Building of the National Institute of Advanced Industrial Science and Technology (AIST) Fukushima Renewable Energy Institute (FREA), which is set to be completed in spring 2024. Our company is participating in this enhancement project as a system integrator, working on the high functionality of both hardware and software. We will provide detailed information about the roles and contributions our company has made in this enhancement project.

• Solar power generator
• Other embedded systems (software and hardware)

The world's largest power conditioner (PCS) testing facility located in Koriyama City, Fukushima Prefecture, is part of the National Institute of Advanced Industrial Science and Technology's Fukushima Renewable Energy Institute (FREA). The smart system research building is undergoing an enhancement project, which is set to be completed in the spring of 2024. Our company is participating in this enhancement project as a system integrator, working on the high functionality of both hardware and software. In this article, we will provide an overview of the entire enhancement project, and in the next installment, we will detail our company's role and contributions to this enhancement project.

• Solar power generator
• Other embedded systems (software and hardware)

Under the title "What the Japan Kernel System Can Do," we will introduce our company's "technology" and "commitment to product creation" in a series. Now, let's dive into the details of our power conditioner development support!

• Other embedded systems (software and hardware)
• Solar power generator

Our company is actively engaged in supporting the development of power conditioners for solar power generation, including participation in mini-model demonstration experiments. I will explain the main activities.

• Solar power generator
• Other embedded systems (software and hardware)

Titled "What the Japanese Kernel System Can Do," this series introduces our company's "technology" and "commitment to product creation." The final theme is the evolution of our I-V curve tracer product, the "PV Analyzer." We will also explain the parameters of the I-V curve and the line curve, which are frequently asked questions.

• Other electronic measuring instruments

Under the title "What the Japan Kernel System Can Do," we will introduce our company's "technology" and "commitment to product creation" in a series. The theme for this time is the PV automatic measurement system.

• Other electronic measuring instruments

Under the title "What the Japanese Kernel System Can Do," we will introduce our company's "technology" and "commitment to product development" in a series. This time, the theme is also the highly flexible I-V curve measurement. This is a continuation from the last time.

• Other electronic measuring instruments

Titled "What the Japanese Kernel System Can Do," this series introduces our company's "technology" and "commitment to product creation." The ninth theme is highly flexible I-V curve measurement.

• Other electronic measuring instruments

Titled "What the Japanese Kernel System Can Do," this series introduces our company's "technology" and "commitment to product creation." The eighth theme is the differences and characteristics of load methods in I-V curve tracers.

• Other electronic measuring instruments

Under the title "What the Japanese Kernel System Can Do," we will introduce our company's "technology" and "commitment to product development" in a series. The seventh theme is the issues with I-V curve measurement that become more pronounced as solar irradiance decreases.

• Other electronic measuring instruments

Under the title "What the Japanese Kernel System Can Do," we will introduce our company's "technology" and "commitment to product creation" in a series. The sixth theme is a simplified STC calculation of the I-V curve.

• Other electronic measuring instruments

Under the title "What the Japanese Kernel System Can Do," we will introduce our company's "technology" and "commitment to product creation" in a series. The fifth theme is the STC calculation of the I-V curve.

• Other electronic measuring instruments

Under the title "What the Japanese Kernel System Can Do," we will introduce our company's "technology" and "commitment to product development" in a series. The fourth theme is what can be understood from the shape of the I-V curve. The shape of the I-V curve can reveal the possibilities of "failures or connection errors."

• Other electronic measuring instruments

Titled "What the Japanese Kernel System Can Do," this series introduces our company's "technology" and "commitment to product creation." The third theme is "What Can Be Understood from I-V Curve Measurement."

• Other electronic measuring instruments

Titled "What the Japanese Kernel System Can Do," this series introduces our company's "technology" and "commitment to product creation." The second theme is our focus on the number of measurement points (sampling points).

• Other electronic measuring instruments

One thing we can do is "measure the I-V curve of solar cells." First, let me introduce the measurement method of the 'PV Analyzer Epsilon,' which is familiar from our newsletter "Epsilon News."

• Other electronic measuring instruments

This is a solar cell evaluation system that meets a wide range of requests, from demonstration experiments of prototype modules for new solar cells to PV string measurements for research purposes. We will make proposals tailored to the evaluation targets and objectives. - Proven track record of outdoor exposure tests for new solar cells (such as perovskite-type) and modules - Proven track record of outdoor exposure tests for automotive solar cells - A system that evaluates multiple solar cells by switching them with a single measuring device - A system that evaluates multiple solar cells simultaneously with multiple measuring devices - A system that measures one solar cell module and switches between strings and arrays in sequence - A system that uses a load device with MPPT control functionality instead of a power conditioner for measurements without grid connection We will also make proposals based on your budget and requirements. Please feel free to contact us.

• Testing Equipment and Devices

The PV Analyzer "Epsilon 1000/1500" is an I-V curve measurement device capable of measuring new high-efficiency solar cells. It is the most popular measuring instrument for assessing the actual power generation of PV power systems. 【Features】 ■ Current measurement up to a maximum of 30[A] Supports I-V measurements for various types of solar cells, including N-Type, half-cut cells, and bifacial types! ■ Short measurement time (approximately 1 second until result display, less affected by sudden changes in sunlight) ■ Simple operability (screen supports Japanese display, easy measurement with one button) ■ Internal data storage capacity of 9999 entries, suitable for large-scale power plants ■ When used simultaneously with the measurement unit (CMU12281) [sold separately] and connected to a PC, I-V curve data can be combined with irradiance and temperature data and automatically saved to the PC (using the included software) (Data can also be combined later using PC software) * For more details, please download the PDF or feel free to contact us. * Demo units are available for loan (approximately one week). The Epsilon 1500 is also available for rental.

• Logic Analyzer

The PV Analyzer "Epsilon 1000/1500" is an I-V curve measurement device capable of measuring new high-efficiency solar cells. It is used for completion inspections and regular inspections of PV systems. 【Features】 ■ Capable of measuring up to 30 [A] Can measure recent high-efficiency solar cells such as N-type, half-cut cells, and bifacial solar cells. ■ Short measurement time (approximately 1 second until result display; less susceptible to sudden changes in sunlight or shading) ■ Simple operability (no prior settings required; measurement can be done with one button) ■ Internal data storage capacity of 9999 entries, suitable for large-scale power plants ■ If the device is connected to a PC simultaneously with the measurement unit (CMU12281, sold separately), synchronization of I-V curves with sunlight and temperature data is possible (using the included software) *For more details, please download the PDF or feel free to contact us.

• Logic Analyzer

Please leave the exam content and methods to our company, which is well-versed in them!

• Other contract services

This is an I-V curve tracer compatible with the voltage range of 1000V, suitable for many residential and industrial solar power generation systems. It is an I-V curve tracer for solar cell strings that supports 1000V/30A. The functionality has been significantly renewed from the old PVA14300 model! It can store up to 9999 data points in internal memory, displays results in about 1 second, and allows for short-duration measurements that are less affected by sudden changes in sunlight or shading. 【Features】 - Capable of measuring 1000[V] and 30[A] (can also measure ultra-high output modules such as parallel strings and bifacial modules) - Measurement interval shortened to 5-12 seconds (varies depending on the measurement target) - Equipped with an automatic measurement function (manual/automatic selection available) - Added Japanese mode to the operation guide (English option also available) - Safe operation with reverse connection detection function (misuse detection) - Internal data storage capacity of 9999 points, suitable for large-scale power plants.

• Other measurement, recording and measuring instruments

This is a testing system for online output control functions in distributed power source inverters. It simulates the output control systems of various power companies using control software that operates on a PC and a simulated power server (PSS0104B) that mimics the power company's power server. Users can easily create any power plant ID and output control schedule using the control software of this system. Additionally, by uploading the created data to the simulated power server (PSS0104B), operational tests can be conducted based on the user-created schedule. Furthermore, since the simulated power server has NTP functionality, the test duration can be significantly shortened by arbitrarily changing the setting time of the simulated power server from the control software. The minimum unit for the output control schedule that can be created is 1% output and 30 minutes, which complies with the latest specifications indicated by each power company. It is also possible to build an automatic testing environment for PCS linked with our "Grid Connection Automatic Testing System." 【Features】 ◆ Simulates the power server of power companies ◆ Supports the latest output control methods ◆ Control settings can be made in 1% increments every 30 minutes ◆ DHCP, DNS, and NTP server functionalities

• Testing Equipment and Devices

This software provides total support for maintenance from the site to the office, reducing costs and time. It can be customized to match the inspection forms and reports you are currently using. 【Features】 - Conduct inspections and data entry according to the set items - Display inspection content based on the site - Compare with past implementation data - Customer management function - Report creation function

• Other operation management software

The connection method and number of channels can be adjusted to fit the system, and it will be delivered as a completely custom-made product. ● Capable of switching between 2-wire and 4-wire high voltage DC, with output to I-V curve tracers and PV analyzers, etc. ● Controlled by I-V curve tracers and PV analyzers, measuring each channel based on the set schedule. ● Can be connected to loads such as PCS and MPPT electronic loads.

• others

This is a dedicated logger for solar radiation and temperature measurement, designed to be used simultaneously with our PV Analyzer series. It can measure up to four points each for solar radiation (4 points) and temperature (4 points) at the same time. It is used for measuring solar radiation and temperature in photovoltaic systems along with the I-V curve tracer "PV Analyzer" series. 【Features】 ■ Capable of recording solar radiation at 4 points and temperature at 4 points every second simultaneously ■ Internal memory can hold approximately one year of data (when used for 8 hours a day) ■ Data acquisition uses the accompanying software "Measurement Software" for the PV Analyzer ■ Can connect to a computer via USB or Wi-Fi (Wi-Fi range is approximately 30 meters) ■ Allows real-time data saving and STC conversion by connecting this device and the PV Analyzer to a PC.

• Other measurement, recording and measuring instruments

This is the line impedance for conducting tests added due to the revision of the interconnection testing methods for the system. It corresponds to certification tests for interconnection devices for small distributed generation systems.

• others

◆10 types of impedance selectable ◆Simple operability ◆Selection switching via switches on the front of the rack ◆Selectable switching even with digital signals 【Supported Test Items】 - AC voltage tracking test - Frequency tracking test - Operating power factor test - Output harmonic current test - Voltage rise suppression function test - Conducted disturbance test - System voltage distortion tolerance test - System voltage unbalance test

• others

In solar power generation systems, there is a risk of fire accidents caused by factors such as leakage current and failures of bypass diodes in solar cells. To detect these issues, manual inspection work using devices like megohmmeters and bypass diode testing equipment is necessary. However, this device automatically performs these inspection tasks. It captures changes in conditions that are difficult to detect through monitoring measurement values via power conditioners, significantly contributing to the safe operation of solar power generation systems and the maintenance of power generation capacity. Furthermore, it is an unprecedented remote monitoring device capable of detecting cable theft (disconnection) on the DC side. ◆ Measurement of insulation resistance of solar cell strings (DC ground fault detection and ground fault location identification) ◆ Measurement of bypass routes ◆ Measurement of blocking diodes (reverse current prevention diodes) ◆ Measurement of operating voltage of solar cell strings

• others

This device is a regenerative bidirectional DC power supply that features "battery mode" and "solar cell mode." It has an output capacity of ±2.5 kW and allows for the selection of two output ranges, 450V-12A and 150V-36A, through internal module switching. Additionally, the output is insulated, enabling high voltage and high current configurations through series or parallel connections of multiple units. A PC software for control, measurement, and scheduling operations is included as standard, and it can also be operated locally on the device itself. Features: ● Simulates solar cells (PV) and batteries with a single unit ● Achieves a wide operational range through internal switching ● Insulated output, expandable by connecting multiple units in series or parallel ● Equipped with equivalent functions to our PV simulation power supply (PVU01403) (PV simulation) ● Acts as a regenerative load during charging operations, effectively utilizing power ● Can reproduce realistic battery characteristics with simple settings ● Simulates SOC changes and output characteristic changes according to SOC through charge and discharge operations ● Allows accelerated testing that simulates actual batteries ● Offers C.C./C.V. control options for flexible charge and discharge scheduling ● Internal resistance can be set to 0[Ω]

• Switching Power Supply
• Power storage device