共查询到20条相似文献,搜索用时 109 毫秒
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介绍了SCADA系统和M IS系统的功能和服务对象,分析了SCADA系统和M IS系统进行互连的必要性,探讨了SCADA系统和M IS系统的常规连接方式,在此基础上提出了一种新型连接方式,成功实现了SCADA系统和M IS系统的安全、可靠互联。 相似文献
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石油钻机电驱动系统的数字化是石油钻机发展的方向,介绍了国产电驱动钻机的模拟发电系统和全数字发电系统,详细比较了模拟发电系统和全数字发电系统中的并网系统和电压调节系统的优缺点,并用实测数据说明了数字发电系统的优越性和替代模拟发电系统可用性. 相似文献
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基于压水堆核电厂的棒电源系统供电特性和系统性能的要求,全面分析了国内外主流堆型的设计特点,对电动机发电机组的励磁系统、控制系统和继电保护系统等方面进行了探讨,完善了系统的设计功能,为进一步改进和优化棒电源系统提供了参考。 相似文献
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设计了一种由钒氧化还原液流电池(VRB)和超级电容器组合的混合储能系统,给出了风电功率平抑系统结构图,制定了风电功率平抑协调控制策略。通过采用分层控制结构,由系统上层实现系统功率优化和混合储能装置的功率分配;系统底层实现逆变器和DC/DC变换器输出控制,实现系统功率输出。该系统兼顾了功率和容量要求,响应速度明显提高,降低了系统成本。 相似文献
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串并联与并联形式的联产系统效率比较 总被引:5,自引:4,他引:1
分配比是影响串并联系统和并联系统的关键参数之一。该文在系统模拟的基础上,着重分析了分配比对串并联系统和并联系统特性影响,分析了由于采用不同的弛放气和副产蒸汽利用方式引起的燃气轮机和系统特性变化,最终对两类系统的供电效率进行了对比。 相似文献
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本文叙述了一种双CPU分级数据处理系统,给出了系统组成和系统应用软件流程图,论述了系统工作原理和系统应用:该系统可广泛应用于高速串行随机数据流的接收、缓冲和分级处理。 相似文献
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介绍了光伏功率预测系统的系统运行结构和系统功能,以及在光伏电站的具体应用情况,从系统的实际情况和运行数据多方面验证了该系统的优越性和可推广性。 相似文献
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《The Electricity Journal》2020,33(1):106691
New technologies are transforming the US energy sector. Unprecedented opportunities lie ahead for local renewable energy development. Proper system and resource integration is therefore an economic imperative. Technical and economic integration will require policy alignment and collaboration among cities, counties, energy utilities (both gas and electric), and state government. There is also a potentially invaluable role for higher education in support of local planning and integration. State policy interventions in support of collaborative local renewable integration will be a necessary supplement to existing market and regulatory structures.States can affirm fundamental property rights that empower communities and citizens to actively support local climate action and adaptation. State policy can drive the evolution of existing market and regulatory structures to account for local differences and provide increased flexibility for local jurisdictions to address their diverse local resource opportunities and usage profiles.In parallel, states can encourage cities and counties to increase their capacity to take on vital new roles. State energy regulators will need to balance public interest in the economic health of the companies against they regulate against the opportunity to secure important benefits of local clean energy resource development and integration. They will need to create new processes for harmonizing and cross-leveraging progress toward diverse local goals with progress toward over-arching state goals.The key enabling factor will be a culture of collaboration between energy service providers and local governments. Collaborative local renewable integration can be empowered by state action that creates new points of coordination, integration and assistance.Through policy interventions, states can reduce or eliminate barriers to collaborative local renewable integration while capturing opportunities to bring together local government and energy utility capacities and data, plus capacities of universities, non-profit and utility training programs. 相似文献
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AbstractIn this paper, essential statistics demonstrating the increasing role of renewable energy generation are firstly discussed. A state of the art review section covers fundamentals of wind turbines and PV systems. Included are schematic diagrams illustrating the main components and system topologies and the fundamental and increasing role of power electronics as an enabler for renewable energy integration, and for the future power system and smart grid. Recent examples of research and development, including new devices and system installations for utility power plants, as well for as residential and commercial applications are provided. Fuel cells, solar thermal, wave generators, and energy storage systems are also briefly presented and illustrated. Challenges and future trends for 2025 are summarized in a table for on-shore and off-shore wind energy, solar power, including photovoltaic and concentering, wave energy, fuel cells, and storage with batteries and hydrogen, respectively. Recommended further readings on topics of electric power engineering for renewable energy are included in a final section. This paper also represents an editorial introduction for two special issues of the Electric Power Component and Systems Journal, 43(8–10) and 43(12), respectively. 相似文献
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Judith Schwartz 《The Electricity Journal》2018,31(9):34-37
Rate design serves objectives of cost recovery, market animation, and customer incentives. Yet in the quest to find the ‘perfect equitable rate,’ many rate designers and pilots overlook the diversity of consumer attitudes. AMI enables not only interval monitoring and controls, it allows alternative pricing plans, payment options, device adoption, and generation mixes reflecting individual priorities. Connecting consumer attitudes with a portfolio approach helps regulators and utilities achieve specific goals while improving satisfaction and engagement. 相似文献
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针对小型共轴折叠双旋翼飞行器结构特点、飞行原理进行分析,研究无人机运动学和动力学特性并建立数学模型,建立了无人机飞行器半实物飞行的动力性能和姿态角测试平台。该平台对飞行器机械振动、姿态角和噪声等性能分析。通过测试实验分析无人机不同旋翼转速产生的机械振动和噪声等特性,以及对陀螺仪和加速度计等MEMS传感器姿态解算结果的影响。测试实验表明:随着转速的增加振动幅度有所增加,该振动特性对噪声模型的建立和评估对无人机鲁棒性和抗干扰性提供新思路及有益借鉴。 相似文献
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电站锅炉停用保护剂多采用十八胺和表面活性胺。对这2种停用保护剂进行了应用效果对比研究,即对湿冷机组、空冷机组采用十八胺或表面活性胺、有无凝结水精处理系统等6台机组停机和启动过程中给水、主蒸汽和凝结水的氢电导率变化情况进行分析。研究结果表明:在停机过程和启动过程,2种保护剂均会在水汽系统中发生部分分解,导致水汽系统的氢电导率显著升高;表面活性胺和十八胺比较,使用前者,机组启停机过程可保持凝结水精处理系统正常投运,因而可使水汽质量迅速达标,对机组安全运行有利,因此推荐采用表面活性胺作为锅炉停用保护剂。 相似文献
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1000 kV GIS变电所VFTO特性研究 总被引:28,自引:10,他引:18
为确保特高压输电工程的安全可靠,结合我国特高压输电试验示范工程计算分析了GIS和HGIS变电所的特快速瞬态过电压(VFTO)。研究表明,GIS变电所隔离开关开合短线时可能产生高达3p.u.左右的VFTO,对GIS本体绝缘和二次设备可能构成危害。研究了GIS隔离开关装并联分合闸电阻对限制VFTO的作用后,建议GIS变电所采用并联分合闸电阻(约500Ω),提出了并联分合闸电阻的相关参数的建议值;GIS变电所中的主变压器和GIS是经架空线相连接,在变压器上的VFTO不高;HGIS变电所中的VFTO不高,在允许范围内,其隔离开关可不装并联分合闸电阻。 相似文献
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从高压加热器的设计制造和运行等方面进行分析论证,阐述了压力损失对高加性能的影响.对高压加热器的管板和水封板结构及布置要点进行了设计,强调了高压加热器蒸冷段和疏冷段的密封性对设备安全运行的重要性.从运行方面进行分析,要加强控制水位和不凝结气体的排放,着重介绍了温升和温降速率对高压加热器运行性能的影响. 相似文献
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电纺丝技术及其应用 总被引:2,自引:0,他引:2
电纺丝技术是非牛顿流体的高聚物溶液在高压电场的作用下克服表面张力和粘弹性力,进行拉伸弯曲运动获得纳米到亚微米级纤维的一种技术。它作为高压与纳米技术的完美结合为传统高电压技术注入了新鲜血液。电纺丝纤维因其巨大比表面积和高孔隙率而得到组织工程、同轴电缆、药物缓释等多领域的关注。电纺丝参数影响方面的报道很多,而电纺丝领域当前最前沿研究及最新发现的报道还很少,故介绍了国内外电纺丝参数的研究成果及其最新动态,提出了电纺丝发展的几个瓶颈问题及解决方向。说明电纺丝技术的发展必然要先从理论模型和提高效率两方面入手并取得足够进展,该技术才能在生产实践中广泛应用。 相似文献