Abstract：A 2 kV photovoltaic grid-connected inverter system based on a five-level active neutral-pointclamped（ANPC-5L）topology was designed for high-power，high-voltage applications. This topology significantly

improved the system efficiency and reliability by increasing the number of output levels and reducing the switching

loss and device voltage stress. Meanwhile，a bus voltage balancing control strategy was proposed to balance the

midpoint voltage by injecting zero-sequence components，and the voltage balancing control of suspended capacitors was designed to reduce capacitor voltage fluctuations. In addition，introducing the RN8302 power metering chip simplified the system's voltage and current measurement and power calculation. It improved the control system's real-time accuracy. Validation was carried out through a simulation platform，and the results show that the designed system performs well in harmonic suppression，bus voltage balancing，and power quality，and is able to meet the requirements of 2 kV high-voltage grid-connected applications.

      Key words：2 kV photovoltaic inverter；neutral point voltage balancing；high-voltage high-power；harmonic

suppression；five-level active neutral-point-clamped（ANPC-5L）topology

     Format Citation:王一鸣，许颇，杨珂,等. 基于ANPC⁃5L拓扑的2 kV光伏逆变器设计与控制策略研究[J].电气传动,2026,56(06):10-15. WANG Yiming，XU Po，YANG Ke,et al. Research on the design and control strategy of 2 kv photovoltaic inverter based on ANPC-5L topology [J].Electric Drive,2026,56(06):10-15