2026 اتجاهات المحولات الكهروضوئية: المحور الأساسي للشبكات الذكية وأنظمة الطاقة المعتمدة على الذكاء الاصطناعي

Neglected photovoltaic core equipment

With the continuous explosive growth of global photovoltaic installed capacity in 2026, غالبًا ما ينصب تركيز الصناعة على الوحدات والعاكسات, 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
عنصروظيفة
PV PanelsGenerate DC electricity
InverterConverts DC → AC
Step-Up TransformerRaises voltage for grid
SwitchgearControls and protects system
Grid ConnectionPower distribution

The main types of photovoltaic transformers

1.محول مغمور بالزيت

  • Suitable for large ground power stations
  • أداء ممتاز لتبديد الحرارة
  • strong carrying capacity

2.Dry type transformer

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

3.Box type transformer (pre installed)

  • integrated design
  • تركيب سهل

Comparison Table

يكتبEfficiencyMaintenanceطلب
مغمورة بالزيت★★★★★واسطةLarge solar farms
Dry-Type★★★★LowBuildings
Pad-Mounted★★★★LowDistributed PV

Analysis of Key Technical Parameters

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

Parameterوصف
القوة المقدرة (kVA/MVA)Capacity of transformer
Voltage RatioInput vs output voltage
مجموعة المتجهاتPhase displacement (على سبيل المثال, داين11)
Cooling Methodأونان, تشغيل إيقاف, إلخ.
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.Digital twin technology

  • 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

ParameterValue
سعة100 MW
Transformer TypeOil-immersed
الجهد االكهربى0.8kV → 132kV
CoolingONAN/ONAF
Efficiency>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

Luoyang Datang Energy Technology Co., Ltd. هي مؤسسة التكنولوجيا الفائقة دمج R&د, تصنيع وتوريد معدات الطاقة مثل المحولات, مكونات الطاقة الجديدة, خزائن التوزيع والعاكسات. With technological innovation as the core, we focus on creating high-reliability and high-performance power solutions to serve global customers. With a strict quality control system and international standard certification, we continue to output excellent products and enable customers to build safe and stable power systems.

تحديثات النشرة الإخبارية

أدخل عنوان بريدك الإلكتروني أدناه واشترك في نشرتنا الإخبارية