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Multi-Parallel Operation Control Method of High Efficiency PCS Module for ESS
- Authors
- Bae, KH[Bae, Ki-Hoon]; Kim, JM[Kim, Jun-Mo]; Lee, J[Lee, Jeong]; Eom, TH[Eom, Tae-Ho]; Ryu, K[Ryu, Kyung]; Won, CY[Won, Chung-Yuen]
- Issue Date
- 2019
- Publisher
- IEEE
- Keywords
- Multi-parallel operation Control; Modular AC/DC Converter; Load sharing control; SiC device
- Citation
- 2019 10TH INTERNATIONAL CONFERENCE ON POWER ELECTRONICS AND ECCE ASIA (ICPE 2019 - ECCE ASIA), pp.2723 - 2728
- Journal Title
- 2019 10TH INTERNATIONAL CONFERENCE ON POWER ELECTRONICS AND ECCE ASIA (ICPE 2019 - ECCE ASIA)
- Start Page
- 2723
- End Page
- 2728
- Abstract
- In this paper, Multi-parallel operation control method of four Power Conversion System (PCS) modules is proposed to increase overall Energy Storage System (ESS) Each module with 25kW should be controlled to share the same power, and if the output voltage and output current of each module are different, control is performed to compensate for the same value. In the proposed control scheme, the power sharing between PCSs for each module is made equal to minimize the circulating current. In addition, Silicon Carbide (SiC) Semiconductor with more advantages than Silicon (Si) semiconductor were used. The analysis of the proposed method and design procedure are explained for four PCS connected in parallel. The effectiveness of proposed method is verified by simulation and experiment.
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