摘要
Abstract
To address critical challenges in hybrid power system development,such as insufficient simulation accuracy,rigid hardware configuration,and inefficient strategy optimization,a verification platform based on multi-real-time machine for hybrid power system control strategies was designed.Adopting a modular layered architecture design,this platform employs an NI PXIe-1071 real-time machine to implement dynamic switching and optimization of upper-level energy management strategies.It utilizes NI PXIe-1088 and NI cRIO-9057 real-time machines to collaboratively operate multi-body dynamic models such as engines and motors.The NI cRIO-9036 real-time machine controls the physical test bench,while a CAN+Ethernet+I/O hybrid communication architecture ensures microsecond-level synchronization(synchronization error＜0.1 μs).Test results demonstrate that the platform achieves an end-to-end control latency of only 0.8 ms,an engine torque simulation error of 1.2％,and a battery state of charge(SOC)estimation deviation＜1.5％.It supports parallel comparison of three strategies,boosting test efficiency by 3.2 times while fully covering 95％of typical operating conditions.Strategy switching time remains consistently within 50 ms.This platform overcomes the performance limitations of traditional single-machine verification systems,offering three key advantages:high verification accuracy,flexible hardware scalability,and short development cycles.It provides a highly reliable and flexible experimental solution for control strategy development in hybrid vehicles,marine applications,and other fields,demonstrating significant engineering application value.关键词
半实物仿真/硬件在环/混合动力系统/实时机/能量管理Key words
semi-physical simulation/hardware-in-the-loop/hybrid power system/real-time machine/energy management分类
信息技术与安全科学
