Critical review and functional safety of a battery management system for large‑scale lithium‑ion battery pack technologies

The battery management system(BMS)is the main safeguard of a battery system for electric propulsion and machine electrifcation.It is tasked to ensure reliable and safe operation of battery cells connected to provide high currents at high voltage levels.In addition to efectively monitoring all the electrical parameters of a battery pack system,such as the voltage,current,and temperature,the BMS is also used to improve the battery performance with proper safety measures within the system.With growing acceptance of lithium-ion batteries,major industry sectors such as the automotive,renewable energy,manufacturing,construction,and even some in the mining industry have brought forward the mass transition from fossil fuel dependency to electric powered machinery and redefned the world of energy storage.Hence,the functional safety considerations,which are those relating to automatic protection,in battery management for battery pack technologies are particularly important to ensure that the overall electrical system,regardless of whether it is for electric transportation or stationary energy storage,is in accordance with high standards of safety,reliability,and quality.If the system or product fails to meet functional and other safety requirements on account of faulty design or a sequence of failure events,then the environment,people,and property could be endangered.This paper analyzed the details of BMS for electric transportation and large-scale energy storage systems,particularly in areas concerned with hazardous environment.The analysis covers the aspect of functional safety that applies to BMS and is in accordance with the relevant industrial standards.A comprehensive evaluation of the components,architecture,risk reduction techniques,and failure mode analysis applicable to BMS operation was also presented.The article further provided recommendations on safety design and performance optimization in relation to the overall BMS integration.

中小企业“4+1”安全管理与监管模式研究

在对全国中小企业安全生产状况调查的基础上,分析了中小企业的安全生产现状其数量多、绝大多数在乡镇街道、生产安全事故多发、职业病危害严重、从业人员素质低、生产力水平低;政府针对中小企业的安全监管人员数量少;乡镇街道的安全生产中介服务机构数量少,服务内容单一。因此,提出了中小企业安全生产监督管理“4+1”模式,其中“4”是指中小企业、政府安全监管部门、中介机构和社会监督部门的安全生产管理、监管、服务、监督体系,“1”是指提高监管效能的运行保障机制。该模式从宏观上为政府监管中小企业提出了一种新的思路,从微观上为中小企业、政府安全监管部门、中介服务机构、社会监督部门的安全生产工作提出了新的方法。

插电式混合动力整车能量管理控制策略

针对插电式混合动力整车能量管理的经济性及动力性要求较高的问题,提出了插电式混合动力整车能量管理控制策略.设计了整车能量管理策略总体方案,分析了车辆行驶里程对插电式混合动力汽车燃油经济性的影响,同时还设计了行驶里程自适应的辅助能量管理控制策略.结果表明:该整车能量管理策略能够根据道路和车辆信息,合理地选择当前最合适的工作模式,可以更加合理地分配从电网充入的电能,提高整车的燃油经济性.

中小化工企业安全管理模式分析

化工企业作为一项基础工业,为我国的经济腾飞做出了不可磨灭的贡献。近年来依托高新技术的发展,中小化工企业生产规模也逐步壮大,但受限于管理模式老旧、管理制度不够完善等多方面因素,中小化工企业的安全管理问题形势依然严峻。安全是悬在生产之上的第一警钟,任何时候都不能忘记安全的重要性。主要对中小化工企业存在的安全隐患进行分析。

能源总厂构建“大安全”管理模式的实践与思考

武钢能源总厂把安全管理的范围与内容从传统的人身安全扩大到生产过程中的设备、运行、人身、交通、消防等各个方面 。

府谷中小型煤矿兼并重组后安全管理模式研究

介绍了陕西省府谷县中小型煤矿安全管理现状,分析了中小型煤矿兼并重组后可能出现的问题,并提出构建府谷中小型煤矿兼并后安全管理模式的方法,使得兼并后的府谷中小型煤矿形成合适的安全管理模式,并解决各个中小型煤矿自身生产过程中出现的问题,减少安全事故的发生,实现"安全第一,预防为主,综合治理"的生产方针。