MPPT Electronic Load Device Series - Operating at Maximum Power Point of Solar Cells
ECL02401
Connect to a solar cell and operates at the maximum operating point (Pmax). It can track the maximum power point under various solar illumination, angle, and temperature conditions.
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.
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basic information
- Rated power: 300[W] / 500[W], Rated voltage: 200[V], Rated current: 15[A] *Customization available (Rated voltage: 450[V] / Rated current: 3[A]) - Mode selection available (3 types) *Changeable from the included software MPPT mode ・ Constant voltage (CV) mode ‣ Constant power (CP) mode - Continuous monitoring of measurement values possible via PC and LAN connection with dedicated software - Measurement data can be saved as CSV files - Detailed settings for MPPT operation can be configured from the software (time, voltage, power, etc.) - Available in two types: indoor and outdoor - Compatible with various types of solar cells (Note: The customized version has measurement records for perovskite solar cells) - Variable MPPT control time (200/500/1000ms) *Proven results for power generation measurement in mobile applications such as vehicle-mounted PV, with dedicated display software available - Minimum operating power Pmax: 1W Vpm: 2V Ipm: 0.12A (with sweep function) - Minimum operating power Pmax: 3W Vpm: 3V Ipm: 0.25A (without sweep function)
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Applications/Examples of results
- Power generation investigation tests for existing solar cell modules (PV) (crystalline silicon type, thin film type, etc.) - Power generation investigation tests for new solar cell modules and cells (perovskite, bifacial type, etc.) - Power generation verification tests for vehicle-mounted solar cells - Actual power generation investigation and verification tests when considering the introduction of solar cell modules as OEM.
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Since the time of the Sunshine Project at the current Ministry of Economy, Trade and Industry, we have developed simulated power sources, measuring instruments, power conditioners, and more, in response to requests from organizations such as the National Institute of Advanced Industrial Science and Technology, the Central Research Institute of Electric Power Industry, and Tokyo University of Agriculture and Technology. Based on these achievements, we have commercialized our products and expanded sales to various research institutes and manufacturers, proudly positioning ourselves as a niche leader in this field. We specialize in the development of products and systems that combine hardware and software, including simulated power sources such as solar cells and storage batteries, load devices necessary for grid connection testing, and testing systems that operate these components collectively. We also have extensive experience in solar cell measurement, and our I-V curve tracer is widely used not only for the maintenance of solar power plants but also for research and development purposes at manufacturers, research institutions, and universities. We have numerous delivery records of automated measurement systems that incorporate measuring instruments and load devices. Development of power electronics equipment that combines analog and digital technologies, development of control software using DSP, and construction of PV measurement systems are among the services we offer, tailored to meet our customers' needs.