Energy-efficient Green Energy Storage System
Overview
A reliable, safe, and eco-friendly power conversion system and battery pack for Energy Storage applications with three new technologies 1) Rack-mounted natural (RMN) cool design power conversion system based on heat pipe and multilevel modular power stage topology 2) Two-dimensional power (2DP) control to increase light-load efficiency and 3) Deep integration of 3S (PCS, BMS & EMS) to unify the data platform and multiple operating modes
Technical name of innovation
Energy-efficient Green Energy Storage System-increase reliability, safety and battery utilization
Research completion
31/07/2025
Commercialisation opportunities
IP licensing, Technology co-development
Problem addressed
Problems of nowadays energy storage systems and the battery including 1) system fail due to malfunction of cooling fan or air filter, 2) light load inefficient power conversion
Innovation
- Deep integration of 3S (PCS, BMS & EMS) to unify the data platform and multiple operating modes with system efficiency over 90%.
- Rack-mounted natural (RMN) cool design power conversion system based on heat pipe and multilevel modular power stage topology
- Two-dimensional power (2DP) control to increase light-load efficiency which is the most common loading condition
Key impact
- Total project amount HK$14.4M with contribution of HK$7.8M
- 6 sets of 125kW Energy Storage systems are installed in the Industrial park (750kW/1,392kWh). Annual electricity consumption of the Industrial park is about 8.4M kWh in which the peak-to-valley differences is RMB$1.16/kWh in Zhongshan
- Obtain economic benefits through the electricity price difference and reduce the electricity cost of enterprises. The Industrial park is expected to save RMB$1.06M annually by installing the Energy Storage system
Application
- DC grid system
- Energy storage system
- e-mobility
- UPS
