在电力机车牵引控制优化中,为了充分利用电力机车轴控的优势,针对轴控式B_0-B_0四轴电力机车,提出了机车多轴协调的粘着控制系统。将控制系统分为了两层,上层根据机车的实际轴重和轮对空转情况,合理分配整车转矩;下层是牵引工况下的单轴粘着控制系统。在SIMPACK环境下开发了机车模型,并通过SIMPACK-Matlab联合仿真验证了该控制系统的有效性。仿真结果表明,改进方法能够使机车各轴的空转概率相似,有效地减少机车轮对空转次数和提高机车整体牵引力。
To take full advantage of the axle control of the electric locomotive,a multi-axle coordinated adhesion control strategy was developed for B_0-B_0 four axles electric locomotive.The control system was divided into two layers based on the hierarchical control theory,with the upper layer allocating the total driving torque based on the actual axle-loads and the condition of wheel slip,and the lower layer is adhesion control system of each driven axle in traction conditions.A locomotive model was built by SIMPACK.Effectiveness of the control system was verified the by SIMPACK-Matlab co-simulation.The simulation results show that the system enables each axle of the locomotive slipping at same probability,effectively reduced the slipping times of locomotive wheel-set and improve the overall traction power.