Publication
June-Seok Lee and Kyo Beum Lee, "Variable DC-Link Voltage Algorithm with a Wide Range of MPPT for a Two-String PV System," Energies, vol. 6, no. 1, pp. 58-78, Jan. 2013.
2013
PEEMS
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Oct. 4, 2023
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1. Authors: June-Seok Lee and Kyo Beum Lee
2. Title: Variable DC-Link Voltage Algorithm with a Wide Range of MPPT for a Two-String PV System
3. Journal: Energies
4. Vol/no/pp: vol. 6, no. 1, pp. 58-78
5. Date: Jan. 2013
6. Abstract
: This paper proposes a variable DC-link reference voltage algorithm for wide range of maximum power point tracking (MPPT) for two-string photovoltaic (PV) systems. A multi-string system, which is a kind of PV system, is widely used due to its many merits (such as the ability to use low rating devices, high MPPT efficiency, and so forth). PV systems can choose their input voltages on the basis of their PV cell connection structure. The PV cell connection structure can be restricted because the input voltage and current affect the PV system design. This reduces the MPPT range under some weather conditions. In the restricted PV connection structure, this algorithm enlarges the MPPT range and minimizes the increment of the total harmonic distortion (THD) by selecting the appropriate DC-link voltage reference which is changed by comparing the sorted input voltage. To verify the proposed algorithm, simulation and experiments are conducted to show the results of the performance for the proposed algorithm.
- Oct. 4, 2023 Hyun-Woo Sim, June-Seok Lee, and Kyo-Beum Lee, "On-line Parameter Estimation of Interior Permanent Magnet Synchronous Motor Using an Extended Kalman Filter," Journal of Electrical Engineering & Technology, vol. 9, no. 2, pp. 600-608, Mar. 2014.
- Aug. 26, 2023 June-Seok Lee, Hae-Gwang Jeong, and Kyo-Beum Lee, "Active damping for wind power systems with an LCL filters using a DFT," Journal of Power Electronics, vol. 12, no. 2, pp. 326-332, Mar. 2012.