Protective earthing and protective zero connection in power system

 Protective earthing and protective zero connection in power system

Mean Well 1200W Inverter Disassembly

 

芯仙方案2200W双向AC-DC逆变器参考设计解析：具备UPS功能，可适用48V电池储能-Xinxian Solution 2200W Bidirectional AC- DC Inverter Reference Design

 This bidirectional inverter is a three-active bridge design, using two NXP MC56F81768MLH digital signal controllers for overall control. MPS and Nanochip drivers are used to drive the switch tubes. The battery-side switch tube is from Infineon, model IPP023N10N5, the high-voltage MOS tube is from Optoelectronics, model SJMN099R60ZSW, and the IGBT is from Trino, model TGH40N65F2DS.

MANUTENÇÃO DE CARREGADOR DE BATERIA DE LITIO

Electric vehicle charger repair

A Study on the 500W Class Converter for Power Supply of Ultrasonic Anti-Fouling System for Small Ships Based on Independent Power 독립전원 기반 소형 선박의 초음파 방오 시스템 전원 공급용 500W급 컨버터에 관한 연구

The Transactions of the Korean Institute of Electrical Engineers KIEE Vol. 72, No. 10, p.1173-1179 ISSN (print) :1975-8359 ISSN (online) :2287-4364 Received :15 June 2023Revised :14 September 2023Accepted :22 September 2023 DOI :http://doi.org/10.5370/KIEE.2023.72.10.1173

 A Study on the 500W Class Converter for Power Supply of Ultrasonic Anti-Fouling System for Small Ships Based on Independent Power 독립전원 기반 소형 선박의 초음파 방오 시스템 전원 공급용 500W급 컨버터에 관한 연구 김동욱 (Dong-Wook Kim) 1iD 김배성 (Bae-Sung Kim) 1iD 신덕식 (Duck‑Shick Shin) †iD

 Abstract 

An ultrasonic anti-fouling system that works to remove bio-fouling, which is organic substances attached to structures under the water surface of a ship, while the ship is anchored is proposed. In order to review the configuration and applicability of the proposed system, it is designed by analyzing the operation patterns of coastal small ships and simulating power consumption according to the operation patterns. In this paper, a 500W class converter is proposed among the proposed system. To achieve high performance, a continuous conduction mode that can reduce the size of a circuit and improve efficiency of the system is applied, a two-phase interleaved boost converter applied to schottky diode and N-MOSFET power switch which are capable of high-speed switching is designed. In addition, P&O method that is easy to implement and has a simple structure among MPPT control algorithms is applied to track the optimal operating point in the non-liner characteristics of independent power module. To verify the usefulness of the proposed system, a 500W class power converter is designed. Through simulations and experiments, the performance of the MPPT algorithm according to the solar radiation condition of the independent power module and the two-phase interleaving algorithm are verified. In particular, the MPPT efficiency of over 99.6% is confirmed even under environmental conditions where the amount of solar radiation rapidly changed from 100% to 75% and the power conversion efficiency at 500W output is confirmed to be 96.26%, confirming the usefulness of the proposed circuit.

VIEW FULL TEXT:http://journal.auric.kr/AURIC_OPEN_temp/RDOC/kiee01/kieet_202310_006.pdf