2026 Tendências de transformadores fotovoltaicos: O centro central de redes inteligentes e sistemas de energia orientados por IA

Neglected photovoltaic core equipment

With the continuous explosive growth of global photovoltaic installed capacity in 2026, o foco da indústria geralmente está em módulos e inversores, but a key equipment is often overlooked solar transformers.

In modern photovoltaic systems, transformers not only undertake the basic function of voltage conversion, but also gradually evolve into intelligent, digital, and monitored key node devices, playing a core role in improving grid stability, system efficiency, and energy dispatch capabilities.

What is a photovoltaic transformer?

Photovoltaic transformers are mainly used for:

  • Step up the low-voltage AC power (usually 400V-800V) output by the inverter
  • Realize long-distance power transmission (such as 10kV-220kV)
  • Ensure grid connection safety and electrical isolation
ComponenteFunção
PV PanelsGenerate DC electricity
InversorConverts DC → AC
Transformador ElevadorRaises voltage for grid
SwitchgearControls and protects system
Grid ConnectionPower distribution

The main types of photovoltaic transformers

1.Transformador imerso em óleo

  • Suitable for large ground power stations
  • Excellent heat dissipation performance
  • strong carrying capacity

2.Transformador tipo seco

  • Commonly used in industrial and commercial rooftop photovoltaics
  • High safety (oil-free)
  • Low maintenance cost

3.Box type transformer (pre installed)

  • integrated design
  • Fácil instalação

Comparison Table

TipoEficiênciaManutençãoAplicativo
Imerso em óleo★★★★★MédioLarge solar farms
Tipo seco★★★★BaixoBuildings
Pad-Mounted★★★★BaixoDistributed PV

Analysis of Key Technical Parameters

When choosing a photovoltaic transformer, it is important to pay attention to:

ParâmetroDescrição
Potência nominal (kVA/MVA)Capacity of transformer
Relação de tensãoInput vs output voltage
Grupo de vetoresPhase displacement (por exemplo, Dyn11)
Método de resfriamentoONAN, LIGADO DESLIGADO, etc..
ImpedanceImpacts fault current

1.AI predictive maintenance

  • Real time monitoring of temperature, oil quality, and load
  • Early warning of faults to reduce downtime risks

2.Integration of smart grid

  • Realize dynamic load adjustment
  • Automatic voltage optimization

3.Tecnologia de gêmeo digital

  • Building a virtual model
  • Optimize operation and maintenance strategies

Design Challenges in Photovoltaic Applications

1.Strong output volatility

  • Load instability caused by changes in lighting conditions
  • High adaptability design is required

2.High temperature environment

  • Regions such as the Middle East and Africa have extremely high temperatures
  • Strict requirements for cooling system

3.Harmonic problems

  • Inverter generates harmonics
  • Affects the lifespan of transformers

Case analysis: 100MW photovoltaic power station

ParâmetroValue
Capacidade100 PM
Transformer TypeOil-immersed
Tensão0.8kV → 132kV
ResfriamentoONAN/ONAF
Eficiência>99%

How to choose a suitable photovoltaic transformer?

Suggest evaluating from the following dimensions:

  • Project scale (kW/MW)
  • Installation environment
  • Grid connection requirements
  • cooling method
  • Full lifecycle cost

Tecnologia energética Co. de Luoyang Datang, Ltd. é uma empresa de alta tecnologia que integra R&D, fabricação e fornecimento de equipamentos de energia, como transformadores, novos componentes de energia, armários de distribuição e inversores. Com a inovação tecnológica como núcleo, nos concentramos na criação de soluções de energia de alta confiabilidade e alto desempenho para atender clientes globais. Com um rigoroso sistema de controle de qualidade e certificação de padrão internacional, continuamos a produzir produtos excelentes e a permitir que os clientes construam sistemas de energia seguros e estáveis.

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