串联谐振多有源桥变换器简化模型预测控制及其噪声容限提升策略

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DOI：10. 15938/j. emc. 2025.08.005

中图分类号：TM46 文献标志码：A 文章编号：1007-449X（2025）08-0042-14

Simplified model predictive control and noise tolerance enhancement strategy for series resonant multi-active-bridge converter

HUANG Jiazheng'， DONG Zheng'， HAO Tianqu¹， ZHANG Zhenbin¹， XU Yonggang² （1.School of Electrical Engineering，Shandong University，Jinan 250061，China； 2.Emergency Management Center of State Grid Shandong Electric Power Company，Jinan 25OO01， China）

Abstract：The traditional model predictive control（MPC） strategy requires an accurate time-domain model of the power converter，but the multi-port converter has complex control variables，power coupling，and high-order model，making it difcult to obtain the analytical solution expression for the optimal predictive control variable.Moreover，traditional model predictive control suffers from high sensitivity to sampling noise. A continuous control set simplified model predictive control （SMPC） method was proposed based on Kalman filter and a simple noise tolerance strategy，which reduces complexity of the predictive model，and achieves fast dynamic response and wide noise tolerance range of series resonant multi-active-bridge （SR-MAB） converters. Firstly，the fundamental harmonic analysis method was used to calculate the transmission power of the SR-MAB converter and feasibility of this method was verified; Secondy，a linear simplified predictive model was established according to the clasification of ports types，and the simplified model parameters were calibrated through Kalman filter algorithm；Finally，to address the isse of high sensitivity to noise，a simple and eficient noise tolerance enhancement strategy was designed by redefining the correlation coefficients of the simplified model， expanding the noise tolerance range，and balancing dynamic performance，system cost，and computational burden.The experimental results show that compared to PIcontrol，the system's dynamic response time is reduced effectively under SMPC strategy without significantly increasing the computational burden on the processor. The proposed noise tolerance method effectively reduces the resonant current stress at each port.

Keywords： multi-active-bridge converter;model predictive control; simplified model; Kalman filter; noise tolerance

0引言

在新型电力系统中，隔离型多端口DC/DC变换器广泛应用于直流微电网、电力电子变压器、分布式发电[1-4]等领域。（剩余18499字）