Residential battery energy storage system

Residential Battery Energy Storage Systems (BESS) are becoming an increasing critical component in household energy structures as we transition to a digitalized, decentralized, and decarbonized energy infrastructure. A typical residential BESS comprises lithium-ion batteries, a bidirectional inverter for DC to AC conversion, and smart energy management. They can either be added as a standalone expansion to an existing photovoltaic (PV) installation, requiring a separate bidirectional DC/AC inverter. Increasingly residential BESS are being installed as part of an integrated home energy system often comprising the BESS, PV installation and EV wallbox.

Block diagram

Battery Management System (BMS)

Bidirectional DC/AC conversion

DC/DC Conversion

产品

Auxiliary Power Supply

Relevant systems / sub-systems

Relevant evaluation boards

4 kW analogue bridgeless totem-pole PFC evaluation board

设计考虑因素

开始采用PWM驱动无刷直流电机控制
电机驱动MOSFET必须以低R_DSon和良好的热阻抗来满足峰值高电流需求
如果过载情况会降低电池和栅极电压，则可能需要具有强线性模式性能的MOSFET来提供反向电池保护
MOSFET可能需要满足UL2595等的具体间距要求
为小尺寸优化的电荷平衡MOSFET，通常装在可移动电池组中——每个电池一个

MOSFET and GaN FET Handbook

Drawing on over 20 years’ of experience, the MOSFET and GaN FET Application Handbook: A Power Design Engineer’s Guide brings together a comprehensive set of learning and reference materials relating to the use of MOSFETs and GaN FETs in real world systems.

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