Yoha Solar has made new technological progress in testing solutions for next-generation photovoltaic cells. Targeting core technical challenges of prominent hysteresis effects and maximum power point (MPP) drift during the I-V testing of perovskite and tandem cells, the company has independently developed and finalized a dedicated Maximum Power Point Tracking (MPPT) control system. Having passed comprehensive system verification, the solution is now fully applicable for practical deployment, delivering reliable technical support for performance characterization and stable output testing of advanced PV cells.
Yoha Solar’s In-house MPPT Control System
Targeting Testing Pain Points to Break Traditional Algorithm Adaptation Bottlenecks
Different from conventional crystalline silicon cells, perovskite cells are susceptible to ion migration, charge accumulation and device state variations, resulting in obvious I-V hysteresis during testing. For perovskite/silicon tandem cells, current matching between sub-cells, ambient irradiance conditions and pre-test state regulation will further interfere with measurement accuracy.
Traditional MPPT algorithms often suffer from convergence difficulties and tracking fluctuations under such complex conditions. Failure to adapt to the dynamic electrical response characteristics of new-type cells will lead to inaccurate MPP judgment, reduced test repeatability and distorted data, posing challenges for cell efficiency evaluation, performance comparison and long-term stability research.
To address these industry pain points, Yoha Solar has launched targeted R&D based on the dynamic electrical characteristics of perovskite and tandem cells. The self-developed dedicated MPPT control system effectively solves insufficient algorithm compatibility, unstable MPP identification and test data distortion, optimizing testing and control technologies to fit the actual application requirements of next-generation PV devices.
Accurate (MPP) tracking and determination for perovskite and tandem solar cells.
From Algorithm Innovation to System Verification for Industrial Implementation
This technological breakthrough focuses on both algorithm optimization and systematic coordination between the control system and overall testing procedures. Through customized control scheme development and full-system validation, Yoha Solar has improved its technical layout for next-generation PV cell testing. With mature performance and full compliance testing completed, the integrated system enables precise MPPT, stable output testing and in-depth performance analysis for perovskite and tandem cells.
Sustained Independent Innovation to Empower Next-Generation PV Industrial Development
The industrialization of emerging PV technologies relies not only on breakthroughs in cell materials and device structures, but also on synchronous upgrades of high-precision testing equipment and reliable measurement methodologies. Accurate testing that truly reflects device operating status is critical to R&D verification, process optimization and product evaluation.
Yoha Solar consistently tracks technological iterations and evolving testing demands across the PV industry, committing to independent core technology R&D and system optimization. The successful development of the dedicated MPPT control system demonstrates the company’s capability to tackle core testing bottlenecks of perovskite and tandem cells, laying a solid foundation for expanding full-scenario testing solutions for next-generation PV products.
Moving forward, Yoha Solar will continue to innovate PV detection and testing control technologies. By developing application-oriented equipment and systematic solutions, the company will facilitate the R&D, performance evaluation and large-scale industrialization of advanced photovoltaic technologies.