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介绍了洛阳供电公司配电生产管理自动化系统的特点和主要功能,分析了系统建设后产生的效益。提出了该系统建设的几点经验。 相似文献
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针对分布式扶贫光伏无序接入贫困地区薄弱配电网带来的电站信息监测困难、设备缺乏有效运维手段、电量损失较大、运维效率低且成本敏感等问题,考虑分布式扶贫光伏建设实际场景,充分研究论证了分布式扶贫光伏智能运维需求,提出了分布式扶贫光伏智能运维服务系统设计方案。从系统组成、功能规划、通信架构、运行状态监测终端研制等方面进行阐述,该系统包括就地层设备、主站层设备、网络层等。结合该系统在河南林州市分布式扶贫光伏工程中的应用,量化发电效益,给出系统应用效果评价。经工程验证,该系统可以提高发电效益,降低运维成本,具有很好的推广应用价值。 相似文献
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水电站事故备用动态效益评估方法的研究 总被引:2,自引:1,他引:2
本文提出了水电站(包括常规水电站和抽水蓄能电站)以其空闲容量向系统提供补充事故备用之动态效益的定量评估方法。该法由可靠性指标年期望值计算和经济价值分析两部分组成.文末给出了应用实例。实例表明,该评估方法在计算上是可行的,所给出的效益的货币价值是合理的。 相似文献
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为了方便、快捷、准确地计算出低压配电网的无功补偿配置方案,评估补偿方案的效益,协助电网运行管理人员选择经济适用的无功补偿方案,采用Access关系型数据库管理系统、Visual Basic 6.0可视化开发工具,开发了一个低压配电网无功补偿及效益评估系统。该系统具有直观、友好的人机交互界面,提供了多种配电网潮流计算方法和无功补偿优化配置计算方法,以及对不同补偿方案进行成本和效益的评估计算。系统还提供了直观的图形接口由电网运行人员输入新规划建设的低压配电网台区信息,并计算出该台区的无功分散补偿优化配置方案。应用该系统于广州市南沙区实际低压配电网台区,表明了系统使用方便,能够可靠获得台区的实用无功分散补偿优化配置方案。 相似文献
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运用成本效益分析的风/柴/储能系统规划方法 总被引:2,自引:1,他引:1
提出了一种基于成本效益分析的风/柴/储能系统规划方法.该方法采用蒙特卡罗仿真计算风/柴/储能系统的可靠性指标,通过保持该系统的供电可靠性在某一水平下,用风力发电机(wind turbine generator,WTG)和储能系统来扩张系统容量以满足负荷增长,同时在考虑风电运行约束、风力资源、燃料价格以及相关设备安装和维护费用的前提下,运用成本效益分析找出风力发电机安装容量和能量储存容量的最优组合.实例系统仿真结果表明,该方法合理、有效. 相似文献
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形成全国联合电力系统的时机和需要解决的问题 总被引:3,自引:2,他引:3
本文回顾了我国电力系统发展的过程,分析了影响电力系统发展的各种因素,探讨了形成全国联合电力系统的条件和需要解决的问题,最后提出了全国联合电力系统的设想和互联的方式。 相似文献
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提高负荷管理系统的现代化水平,对于提高供电企业的经济效益有着积极而重要的作用。介绍安阳供电公司负荷管理系统的基本概况,并列举实例说明为提高企业经济效益,利用负荷管理系统在电费回收、远方抄表、查处窃电、计量监测、降损分析等方面所采取的措施和取得的成效。 相似文献
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介绍了双层等离子点火系统在1 000 MW超超临界锅炉的首次应用情况,分析了调试过程中的诸多措施。与常规油枪和单层等离子启动相比,双层等离子点火启动最经济,可实现锅炉无油点火启动,减少了点火初期排放大量烟尘对环境的污染。 相似文献
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ABSTRACT This paper reports a feasibility study of the design of an expert system for power system control. The operation of power system has become very complex because of the requirements for different control actions at different levels and the interaction among these controls. The power system operator is required to make very rapid decisions these controls. These decisions are presently made by the operator simply on the basis of his/her previous experiences of each type of decision situation about control actions, control parameters, the selection of control strategy, and switching actions among these controls. Hence it is necessary to design an expert system for making such decisions in this complex environment, to minimize the occurrence of errors by human operators and thereby of reducing the risks of unstable operations.This paper addresses problems of building the expert system for h.v.d.c. transmission systems. The study concentrates on the knowledge generation and its representation, language selection, and decision procedures for such an expert system/knowledge based system (KBS). 相似文献
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现代远程教育具有跨地域、覆盖范围广的特点,其教学培训系统的构建必须从各地网络建设的实际条件出发,综合分析功能、性能、效率和安全因素,选择合理的系统结构.结合电力系统网络结构特点,分析了电力系统实施远程教育的必要性和可行性.结合实践,介绍了电力系统远程教育网络所能实现的功能. 相似文献
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Taizo Kojima Hideo Nakata Motohiko Kawagishi Taku Uehara 《Electrical Engineering in Japan》1998,123(1):32-42
This paper presents a framework for constructing databases for supervisory control systems. The proposed framework utilizes a generation-based approach and object-oriented framework libraries. In this framework, a database is designed for the target system from a design template, and the software for the database system is generated from the database design. The generated database system includes a domain-specific object system and a diagram and plant data editor, which provides effective data input functions. © 1998 Scripta Technica, Electr Eng Jpn, 123(1): 32–42, 1998 相似文献
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高压直流输电系统的保护策略 总被引:4,自引:0,他引:4
直流系统保护策略是直流输电工程系统研究和控制保护系统设计的重要组成部分,其目标是保护设备,避免故障或异常工况造成的设备损坏和影响直流输电。高压直流输电系统可能的故障工况包括挟流阀故障、直流部分故障和交流部分的故障,直流系统在不同的故障情况下表现出一定的特性,根据直流系统运行特点和故障特性提出了高压直流输电系统的保护策略。文章以三常高压直流输电工程为例详细说明了长距离直流输电系统的保护策略,包括功能配置、保护原理、保护动作的处理方式以及控制保护系统仿真研究所采用的手段,并在此基础上时高压直流系统保护策略进行了总结。 相似文献
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An attempt is made to find an intelligent detection system. This intelligent system has two specific properties. First, it is capable of taking advantage of multiple detection parameters or variables. Second, it provides adaptability using inductive reasoning, incorporated with some critic modules in a detection system. Inductive reasoning which will minimize entropy was used to acquire the knowledge of fault class and nonfault class. This knowledge was used to make the intelligent system adaptive to surrounding environments. A learning detection system was implemented with inductive reasoning and an event detector. An example execution is shown with a decision rule which was derived using training sample data consisting of high impedance faults, switching events, and normal status. A complicated set of test data is used to test the performance of the learning detection system. It is found that, even when it met very complicated situations, the learning detection system made smart decisions and evolved to a new situation with a newly derived decision rule 相似文献
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Yi-Bing Lin 《Potentials, IEEE》1997,16(1):31-32
A cordless telephone system (or as it is sometimes called a low power personal communications services system) provides telephone services to moving users. The Cordless Telephone Second generation (CT2) is a digital cordless telephone system developed in Europe in 1989. The CT2 system provides high speech quality (32 kb/s speech rate) with low power consumption (the maximum transmit power is 10 mW). While the radio aspect of CT2 has been extensively discussed, the network aspect is seldom mentioned in the literature. This article introduces the CT2 call control procedures (specifically, call origination and call delivery) from the network aspect. We first describe the call control procedures for a private CT2 system in a company building. Then we describe the procedures for a public CT2 system 相似文献