Solar Inverter Solution - BYD IGBT/SiC High-Efficiency Conversion

Application

Description

Solar inverter solution based on BYD IGBT and SiC MOSFET, supporting string and central inverters, covering 3kW-250kW power levels, achieving high-efficiency photovoltaic power generation.

Core Advantages

High Efficiency IGBT solution efficiency ≥98.5%, SiC solution efficiency ≥99%, maximizing power generation revenue
Wide MPPT Range Supports 200V-1500V wide voltage range, adapting to various module configurations
Three-Level Topology I-Type modules support three-level topology, reducing losses and EMI
High Reliability Industrial and automotive grade products, 25+ year design life
Complete Support MPPT algorithms, grid-tie control, and thermal design support

Recommended Bill of Materials (BOM)

Item Part Number Description Quantity Datasheet
1 BG200I07N10H6 650V 200A I-Type three-level module for 3-10kW residential inverters 4 📄 Download
2 BG300F08A13L5 750V 300A IGBT module for 10-50kW string inverters 6 📄 Download
3 BG150G12F13L4 1200V 150A IGBT module for 50-100kW inverters 6 📄 Download
4 BM600F12B34U2 1200V 400A SiC module for 100-250kW high-efficiency inverters 6 📄 Download

Applications

Residential Solar Systems
Commercial and Industrial Distributed Solar
Large-Scale Ground-Mounted Power Plants
Energy Storage Inverters

Technical Specifications

Power Range
3kW-250kW
Max Efficiency
≥99%
M P P T Voltage Range
200V-1500V
Switching Frequency
16-100kHz
Power Factor
>0.99
T H Di
<3%

Customer Success Stories

Solar Inverter Manufacturer

Solar Energy |

Challenge

Developing 50kW string inverter requiring high efficiency and low cost

Solution

Adopted BG300F08A13L5 IGBT module with two-level topology design

Results

Maximum efficiency 98.7%, China efficiency 98.4%, cost reduced by 20%

Large-Scale Power Plant Developer

Solar Energy |

Challenge

250kW central inverter pursuing maximum power generation efficiency

Solution

Adopted BM600F12B34U2 SiC module with three-level topology

Results

Maximum efficiency 99.1%, 25-year power generation revenue increased by 3%

FAE Expert Insights

S

Senior FAE

Applications Engineer

10+ years

Professional Insights

Solar inverter applications have extremely high requirements for efficiency and reliability. Key design experience: (1) Three-level topology has significant advantages in medium-to-high-power applications and is worth considering. (2) Thermal design must fully consider harsh outdoor environments. (3) MPPT algorithm efficiency directly affects power generation revenue and requires careful optimization. (4) Grid-tie control must meet various national grid standards. Our reference designs have been verified in multiple projects and can help customers quickly develop efficient inverters.

Key Takeaways

  • Three-level topology can significantly improve efficiency and reduce EMI
  • Outdoor thermal design must consider high temperature and dust environments
  • MPPT and grid-tie control algorithms require careful optimization
  • Reference designs can accelerate product development

Decision Framework

Steps:
  1. Determine inverter power level and topology type
  2. Select IGBT or SiC based on efficiency targets
  3. Design thermal management for outdoor environment
  4. Implement MPPT and grid-tie control algorithms
  5. Conduct EMC testing and optimization

Ready to Implement This Solution?

Contact our FAE team for design support and quotes

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Frequently Asked Questions

How to select power modules for different power level solar inverters?

Selection recommendations: (1) 3-10kW residential: BG200I07N10H6 (three-level). (2) 10-50kW string: BG300F08A13L5. (3) 50-100kW: BG150G12F13L4. (4) 100-250kW: BM600F12B34U2 (SiC). Three-level topology is suitable for applications pursuing high efficiency.

Contact FAE for selection based on power level, efficiency targets, and cost budget.

What are the advantages of three-level topology compared to two-level?

Three-level topology advantages: (1) Switching losses reduced by 50%. (2) Better output voltage waveform quality, lower THD. (3) Reduced EMI, smaller filter size. (4) Efficiency improvement of 0.5-1%. BG200I07N10H6 is an I-Type module specifically designed for three-level topology.

High-efficiency requirements (>98.5%) recommend three-level topology.

What are the special thermal design requirements for solar inverters?

Thermal design requirements: (1) Outdoor applications must consider ambient temperatures above 45°C. (2) High altitude areas have reduced cooling capacity. (3) Dust environments require sealed designs. (4) Recommended thermal resistance: IGBT <0.15K/W, SiC <0.10K/W. We provide thermal design guidance for outdoor applications.

Provide installation environment and altitude information, FAE can perform thermal simulation and design optimization.

What is the value of SiC in solar inverters?

SiC value in solar: (1) Efficiency improvement of 0.5-1%, 25-year power generation increase of 2-4%. (2) Higher switching frequency, smaller magnetic components. (3) Fanless design becomes possible, improving reliability. (4) Particularly suitable for high-power and high-temperature environments.

Calculate ROI of SiC solution based on 25-year power generation revenue increase vs cost increase.

Do you provide MPPT and grid-tie control algorithm support?

Yes, we provide: (1) MPPT control algorithm reference code. (2) Grid synchronization and power control algorithms. (3) Anti-islanding protection implementation. (4) Grid adaptability design (low voltage ride-through, etc.). Helping customers quickly complete control software development.

Contact FAE for control algorithm reference code and technical documentation.

Are the same power modules applicable to energy storage inverters?

Yes, power modules are also applicable to energy storage inverters. Energy storage application characteristics: (1) Requires bidirectional power flow. (2) Frequent charge/discharge cycles, high reliability requirements. (3) SiC's high efficiency and long life are particularly suitable for energy storage. We provide energy storage inverter reference designs.

Energy storage applications require bidirectional control and battery management. Contact FAE for energy storage solutions.