基于直线电机的波浪能发电系统综述

本文介绍了波浪能利用的背景和现状,以及直线发电机在当前波浪能发电装置中的优越性;介绍了基于直线电机的波浪能发电装置的结构与工作原理。对波浪能发电机组和电网间不同的联接方式进行了定性分析和比较。基于直线电机的波浪能发电装置具有效率高、结构简单以及安装维护简易等特点,在波浪能利用领域具有广阔的应用和发展前景。     

N2O／H2富燃火炬式点火器研究

本文介绍N2O/H2富燃火炬式点火器的初步研究情况,包括结构设计和试验结果。该点火器具有结构独特、设计灵活、启动快速、点火能量高而且无毒无污染的特点,试验表明:点火器可在较宽的工况范围内可靠地重复生成稳定的点火火炬。     

Study of predicting breakdown voltage of stator insulation in generator based on BP neural network

The breakdown voltage plays an important role in evaluating residual life of stator insulation in generator. In this paper, we discussed BP neural network that was used to predict the breakdown voltage of stator insulation in generator of 300 MW/18 kV. At first the neural network has been trained by the samples that include the varieties of dielectric loss factor tan δ, the partial discharge parameters and breakdown voltage. Then we tried to predict the breakdown voltage of samples and stator insulations subjected to multi-stress aging by the trained neural network. We found that it＇s feasible and accurate to predict the voltage. This method can be applied to predict breakdown voltage of other generators which have the same insulation structure and material.     

家用太阳能发电系统逆变电路的设计

采用运算放大器组成的RC桥式正弦波振荡器电路和运算放大器,设计了一种家用太阳能发电系统逆变电路,该电路可以将光伏蓄电池阵列的直流输出电压转变为工频50HZ、220V的交流电压,电路具有体积小、重量轻、成本低的特点,并经计算机模拟仿真实验,从理论上验证了电路的合理性。     

Torque distribution strategy for integrated starter/ generator hybrid bus implemented by fuzzy algorithm

A torque distribution strategy was designed by using fuzzy logic to realize the optimal control. Thevehicle load zones were dynamically divided into several zones by several torque lines to indicate the driversdemand and the high or low efficient operating areas of the diesel engine. The fuzzy logic controller withtrapezoid membership function and Mamdani rule reference mechanism was utilized. There are over 100 rulesused in this fuzzy-based torque distribution strategy which are sorted into four rule-bases. The fuel economyand acceleration tests were designed to test and validate the integrated starter/generator (ISG) bus perfor-mance using fuzzy-based torque distribution strategy. The fuel economy is improved 7.7% compared with therule-based strategy. Finally the road test results reveal that there is about 157% improvement of fuel economy.And the 0-50 km/h acceleration time is 9.5% shorter than the original bus.     

空调发电车故障诊断专家系统

空调发电车科技含量高,结构复杂,工作环境恶劣,故障率高,检查维修难度大.通过对空调发电车各部分工作原理及常见故障的分析,结合故障诊断专家系统的相关知识,对空调发电车故障诊断专家系统的构建和实现的过程作了介绍,并通过内燃机故障实例说明.     

神经网络自学习模糊控制器在直流蒸汽发生器控制中的应用

针对直流蒸发器的动态过程中，各段长度均发生变化，干扰因素多，具有不确定性和非线性等特性，利用神经网络具有并行处理，分布式信息存贮，自学习自适应特点等，设计了基于神经网络的自学习模糊控制器，仿真结果表明，所设计的控制器具有良好的控制效果。本文研究结果对直流蒸汽发生器的控制系统设计具有一定的指导意义。     

NPS6100SHEV增程式电动客车设计

通过对NPS6100SHEV增程式电动客车的动力匹配、发电机组匹配、电池容量计算和控制策略分析,提出增程式电动客车的总体设计要求和一般设计方法。     

柴油机并联运行时负荷自动转移的故障及处理

介绍发电柴油机并联运行时负荷自动转移现象,以及故障的判断、分析和排除方法,提出加强调速器管理的有效措施,以确保柴油机正常运转。