Professional Provision of Magnetic Core Component Solutions
Photovoltaics and Energy Storage
In photovoltaic power generation and energy storage systems, power electronic devices undertake the key tasks of energy conversion, grid-connected control and system protection.
As core magnetic components, transformers and inductors are widely used in inverters, Power Conversion Systems (PCS) and DC/DC modules, serving as an important foundation for the efficient and safe operation of the systems.
Typical Requirements of Photovoltaic and Energy Storage Systems for Magnetic Components
Photovoltaic and energy storage systems typically feature the following characteristics:
- High-voltage and high-power operation
- Long-term continuous operation (outdoor or cabinet environments)
- Emphasis on system efficiency and energy conversion stability
- High requirements for EMI (Electromagnetic Interference) suppression and safety isolation in grid-connected scenarios
Against this backdrop, high-reliability transformers and inductors have become key components in system design.
Applications of Transformers in Photovoltaic and Energy Storage Systems
Main Application Scenarios
- Isolation stage of photovoltaic inverters
- Bidirectional DC/DC of energy storage PCS
- Auxiliary power supplies and control power supplies
Core Functions
- Electrical isolation: Achieve safe isolation between the photovoltaic side, grid side and energy storage battery side.
- Voltage conversion: Match different voltage platforms (photovoltaic arrays / batteries / power grids).
- Improve system safety and reliability
In high-frequency topologies (e.g., LLC, DAB), isolation transformers serve as the core components for energy transfer and system safety.
Applications of Inductors in Photovoltaic and Energy Storage Systems
Main Application Scenarios
- DC/DC boost or buck circuits
- Output filtering of grid-connected inverters
- Battery-side filtering of energy storage systems
- EMI common-mode / differential-mode filtering
Core Functions
- Energy storage and current smoothing
- Reduce ripple and improve output quality
- Suppress high-frequency interference to meet grid-connection and EMC requirements
Inductors are widely used in photovoltaic and energy storage systems, acting as important basic components to ensure the stable operation of the systems.
Collaborative Application Relationship in Typical Systems
In practical applications, transformers and inductors usually work in coordination:
- Transformers are responsible for isolation and voltage matching
- Inductors are responsible for energy storage, filtering and current control
Both components jointly affect system efficiency, stability and power quality.
This combination is widely applied in photovoltaic inverters, energy storage PCS and DC/DC conversion modules.
Relationship Between Transformers and Inductors
Item | Transformer | Inductor |
|---|---|---|
| Main Functions | Voltage conversion + Electrical isolation | Energy storage, filtering, current stabilization |
| Isolation Requirement | Usually required | Usually not required |
| Typical Locations | Inverter, PCS main power stage | DC/DC converter, grid-connected filter, EMI filter |
| System Value | Safety, power density | Stability, power quality |
Brief Summary:
Transformers are responsible for safety isolation and energy conversion,
while inductors are responsible for current stabilization and electromagnetic control.
Together, they form the magnetic foundation for the stable operation of photovoltaic and energy storage systems.
Development Trends of Magnetic Components for Photovoltaic and Energy Storage Systems
As photovoltaic and energy storage systems evolve toward higher power and greater efficiency, they impose increasingly stringent requirements on magnetic components:
- High reliability and long service life
- Adaptability to high-frequency and high-temperature operating environments
- High consistency, suitable for large-scale deployment
High-quality transformers and inductors serve as a crucial foundation for building efficient photovoltaic and energy storage systems.