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

To evaluate the power generation performance of solar cells, it is necessary to actually put the solar cells in a generating state. Without connecting a load, no current will flow, and thus power generation performance cannot be measured. This device consumes the output power by converting it into heat internally when the solar cells are connected. By simply establishing a minimal measurement environment, it is possible to measure the power generation of the solar cells (the device measures voltage, current, and power every second). For tracking the maximum power point, a unique MPPT tracking method is employed, which, in addition to the conventional sequential power comparison (hill climbing method), sweeps the I-V curve output characteristics of the solar cells once per minute to explore the maximum operating point, thereby performing MPPT control. As a result, even when the maximum operating point (Pmax) changes significantly due to sudden weather changes or shading, it continues to track the maximum operating point. Additionally, when combined with a PV analyzer (I-V curve tracer), it is possible to construct a simulated system under load for outdoor exposure tests. This device is used for applications such as confirming domestic power generation amounts for new types of solar cells (perovskite type), vehicle-mounted solar cells, and OEM products.

This is a single-phase three-wire alternating current load device that supports various tests as LC loads and R loads. It is also possible to configure test equipment linked with other measuring instruments and power supplies through computer control. By using our developed products such as the grid connection test software (sold separately) and the power conditioner evaluation system (PVU01403), automatic grid connection testing for solar power system power conditioners can be conducted.

◆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

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