I4C
default image
Key technologies for DC conversion of optical storage air conditioning
Photovoltaic direct-drive air conditioner, efficient and energy-saving, off-grid power supply, intelligent management.
Type
Energy management system
Tags
Energy conservation
Energy-saving technology
High-efficiency energy-saving
Photovoltaic direct drive
Energy storage
Solution maturity
Mass promotion / Mass production
Cooperation methods
Other
Applicable industry
Residential services, repairs and other services
Applications
Zero carbon park
Key innovations
The innovation of this product is reflected in photovoltaic DC direct-drive air conditioners, parallel and off-grid multi-mode switching and complementary energy storage. It combines power step suppression and intelligent management to significantly improve energy efficiency and system stability, and achieve independent dependence on the power grid for electricity consumption.
Potential economic benefits
Electric energy conversion efficiency has increased by 6-8%, equipment costs have been reduced by 10-20%, and photovoltaic direct drive utilization rate has reached 99.04%, significantly reducing operating and initial investment costs.
Potential climate benefits
Direct use of photovoltaic clean power to drive air conditioners, grid connection and off-grid optimization and energy storage optimization, improve power consumption efficiency by 6-8%, significantly replace fossil fuel electricity, and reduce carbon emissions.
Solution supplier
View more
Zhuhai Gree Electric Co., Ltd.
Zhuhai Gree Electric Co., Ltd.
Gree Electric: With air conditioning as the core, it provides diversified smart home appliance products and solutions, and is committed to improving the quality of life of users around the world.
China
Solution details

1. scope of application

 Efficient and energy-saving equipment.

2. Core technologies and processes

 The photovoltaic output DC power is directly connected to the DC bus of the inverter air conditioning system to realize the photovoltaic DC direct drive of the air conditioning system. Multi-mode operation and free switching in parallel and off-grid are realized, and electricity consumption does not depend on the power grid. By introducing energy storage units, the system uses electricity to complement photovoltaic energy storage, and energy can be used and stored. Power step suppression technology is used to solve the problem of unstable operation at the moment of system mode switching. Use energy information intelligent management technology to realize intelligent dispatch of system power generation, electricity storage.

3. main technical parameters

 The minimum system mode switching time is 4.6ms; the system power step suppression time is less than 200ms; and the compressor speed fluctuation is less than 0.1rad/s.

4. comprehensive benefits

 The utilization rate of photovoltaic direct drive is 99.04%, the power conversion efficiency is increased by 6%-8%; and the equipment cost is reduced by 10%-20%.

Last updated
11:18:05, Nov 04, 2025
Information contributed by
Green Technology Bank

See original page on

Report