Compact Solar Substation Solutions
Writer： Hengfeng you electric Time：2025-04-24 views：times
Compact solar substation: Core Technology for Green Energy Transformation
With the acceleration of the global energy structure towards low-carbon transformation, solar power generation has become the main force in the development of renewable energy. As a key equipment for efficient operation of solar power plants, compact solar substations have become one of the core technologies for promoting cost reduction and efficiency improvement of solar projects due to their modular design, intelligent management, and strong environmental adaptability.
I、 Why choose compact solar substation?
1. Efficient integration and rapid deployment
The compact solar substation adopts a modular design, integrating core components such as step-up transformers, high-voltage switchgear, low-voltage switchgear, and intelligent monitoring systems into a sealed box, reducing on-site installation cycles by more than 70%.
2. Adapt to complex scenarios
Whether it is high altitude, desert, coastal or humid rainforest, compact solar substations can meet the needs through customized design. For example, the Karawang solar project in Indonesia uses high-temperature resistant transformer oil and multiple heat dissipation designs to solve operational difficulties in tropical climates.
3. Dual drive of policy and market
The surge in demand for high-voltage equipment in overseas markets (such as Europe and Southeast Asia) is driving China's technology to accelerate its "going global".
II、Technological innovation of compact solar substations: modularity, intelligence, and green
environmental protection
1. Modular design for rapid deployment
The modular structure of compact solar substations significantly shortens the construction period of solar power stations. For example, Hengfengyou Electric adopted a prefabricated container substation solution in the Agan 300MW solar power plant project, which solved the transportation and installation difficulties in high-altitude (2060 meters) environments through factory customization and integrated design, while reducing on-site construction by 70%
2. Intelligent management, efficient operation and maintenance
The modern compact solar substation deeply integrates intelligent monitoring system, supporting remote "four remote" functions (telemetry, remote control, remote adjustment, remote signaling). Integrate SCADA monitoring platform and AI warning system, support "four remote" functions (telemetry, remote control, remote adjustment, remote signaling), achieve unmanned management, and reduce annual operation and maintenance costs by 30%.
3. Green environmental protection, energy conservation and consumption reduction
The environmental performance of compact solar substations is directly related to the carbon reduction benefits of solar projects.
Adopting SF6 free gas insulation technology to reduce greenhouse gas emissions; The shell material has a recycling rate of up to 85% and a lifespan of up to 30 years. The double-layer insulation structure is designed with a wide temperature range (-40 ℃~+50 ℃), and has passed special tests such as salt spray corrosion and sandstorm simulation to ensure the stable operation of desert and coastal projects.
III、How to choose a compact solar substation?
1. Compact solar substation capacity and voltage level matching
Determine the capacity based on the total power and capacity to load ratio of the project (recommended 1.2-1.5). For example, for a 3MW solar project, it is recommended to use 2.5-3.5MVA box transformers and reserve modular expansion interfaces.
2. Compliance of technical parameters for compact solar substations
Short circuit impedance: The impedance value of the 11kV box transformer needs to be controlled between 5.5% and 6%;
Harmonic suppression: equipped with APF+SVG hybrid compensation device
IV、Compact Solar Substation FAQ
How long is the production cycle of compact solar substations?
-Modular design, Hengfengyou Electric can deliver in as fast as 20 days, which is 70% faster than traditional solutions.
How can compact solar substations cope with high-altitude environments?
Optimize the design of GIS ring main unit and ensure stable operation under low air pressure through 7350 charging and discharging tests.
How to deal with poor heat dissipation in compact solar substations?
-Check for dust accumulation on the heat sink and clean the air duct; The forced air cooling system requires regular maintenance of the fan.
How to maintain the oil immersed box transformer in a compact solar substation?
-Regularly check the breakdown voltage of oil quality and replace transformer oil with excessive emulsification or impurities.
How to troubleshoot communication faults in compact solar substations?
-Check for damaged circuits and loose interfaces, and use shielded cables to reduce electromagnetic interference.
How to reduce the harmonic impact of compact solar substations?
-Configure harmonic suppression module, monitor current waveform in real-time, and activate filtering device when exceeding the standard.
What functions does the compact solar substation intelligent monitoring system include?
-Support real-time monitoring of temperature, humidity, voltage/current, remote control, and fault warning.
How long is the lifespan of a compact solar substation?
-Hengfengyou's product design has a lifespan of 25 years, but the actual lifespan is over 30 years. The shell material can be recycled, extending the service life.
How can compact solar substations cope with extreme weather conditions?
-Choose an IP54 protection level enclosure, paired with an automatic dehumidification and temperature control system.
What are the cost savings of compact solar substations reflected in?
-The comprehensive investment is reduced by 40%, the operation and maintenance costs are reduced by 30%, and early grid connection can increase the monthly income by 600000 yuan.
What certifications should be considered when selecting a compact solar substation? **
-ISO, IEC, CQC, CE, KEMA, ANSI/IEEE, EN certification is required, and core components are selected from brands such as Schneider and ABB.
