Description: 电力系统最优潮流程序，可以应用于电力市场下的最优潮流计算。适合电力系统专业的同仁使用-optimal power flow procedure can be applied to the electricity market under the optimal power flow calculation. Power systems for the professional colleagues use Platform: |
Size: 837632 |
Author:仲伟宽 |
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Description: 电力市场下确定无功源价值的方法探讨
因此提出了4种确定无功价值的方法：Vs法、PV曲线法、ERC法和Back．up法，分析了不同方法
的特点，最后以IEEE30节点系统为例进行了仿真计算，仿真结果表明无功源的价值取决于电网的结
构、无功源的位置以及系统的运行状态。-Electricity market to determine the source of the value of reactive power method is proposed to identify four kinds of reactive power values: Vs law, PV curve, ERC and Back. up method, an analysis of the characteristics of different methods, and finally to IEEE30 bus system simulation as an example, simulation results show that the value of reactive power source depends on the grid structure, the location of reactive power sources and system operation status. Platform: |
Size: 272384 |
Author:何平 |
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Description: PQ分解法针对IEEE14和30节点的电力网络潮流计算matlab程序-PQ decomposition IEEE14 and 30 nodes for the electricity network power flow calculation program matlab Platform: |
Size: 6144 |
Author:赵亮 |
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Description: 1.标准编制背景
根据国家电网公司电网智能化建设规划，智能电网用电环节包含“用电信息采集系统”、“双向互动营销技术”等建设与研究项目。执行统一标准、具备一定功能的电能表是开展这些智能化建设项目的关键技术基础之一，智能电能表系列标准因此成为一项先行工作，被列入国家电网公司2009年企业标准制修订计划。
-1. The standard preparation of background under the State Grid Corporation of intelligent power grid construction planning, smart electricity grid links with " Power of Information Collection System" , " two-way interactive marketing technologies" such as construction and research projects. The implementation of uniform standards, have a certain function of energy table is the implementation of these intelligent building project, one of the key technical basis, intelligent energy meter series of standards has therefore become a first job, was included in the State Grid Corporation in 2009 enterprise standard system revised project. Platform: |
Size: 6884352 |
Author:yanzhangwei |
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Description: Everyday domestic electricity demand can be shown as a load profile 1 which peaks
strongly between 4 and 8 pm. Since most power stations cannot be switched on-line
in an instant, energy providers have to be mindful of this peak and keep some fossil
fuelled power stations ‘running’ so that generators can be quickly powered up. The
carbon impact of this ‘spinning reserve’ can be lowered if the peak demand is
reduced. Appliances such as refrigerators, air conditioners and immersion heaters
cycle on and off for much or all of the day, can under DDC operation, be made to
adjust their cycling during periods of high grid load. Their cycling can be moderated
by a matter of seconds or minutes and, if tuned to the demands of the appliance,
does not unduly affect appliance performance. Platform: |
Size: 276480 |
Author:ada |
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Description: 在智能电网方面的论文 智能电网的网络安全方面的 希望对大家有帮助-The introduction of “smart grid” solutions imposes
that cyber security and power system communication systems must
be dealt with extensively. These parts together are essential for
proper electricity transmission, where the information infrastructure
is critical. The development of communication capabilities,
moving power control systems from “islands of automation” to totally
integrated computer environments, have opened up new possibilities
and vulnerabilities. Since several power control systems
have been procured with “openness” requirements, cyber security
threats become evident. For refurbishment of a SCADA/EMS
system, a separation of the operational and administrative computer
systems must be obtained. The paper treats cyber security
issues, and it highlights access points in a substation. Also, information
security domain modeling is treated. Cyber security issues
are important for “smart grid” solutions. Broadband communications
open up for smart meters, and the Platform: |
Size: 579584 |
Author:hahavi |
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Description: Electrical power systems are one of the most complex large scale systems.
Over the past decades, with deregulation and increasing demand in many
countries, power systems have been operated in a stressed condition and subject
to higher risks of instability and more uncertainties. System operators
are responsible for secure system operations in order to supply electricity
to consumers efficiently and reliably. Consequently, power system analysis
tasks have become increasingly challenging and require more advanced techniques.
This book provides an overview of some the key emerging techniques
for power system analysis. It also sheds lights on the next generation technology
innovations given the rapid changes occurring in the power industry,
especially with the recent initiatives toward a smart grid. Platform: |
Size: 4417536 |
Author:imedp |
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Description: Electrical power systems are one of the most complex large scale systems.
Over the past decades, with deregulation and increasing demand in many
countries, power systems have been operated in a stressed condition and subject
to higher risks of instability and more uncertainties. System operators
are responsible for secure system operations in order to supply electricity
to consumers efficiently and reliably. Consequently, power system analysis
tasks have become increasingly challenging and require more advanced techniques.
This book provides an overview of some the key emerging techniques
for power system analysis. It also sheds lights on the next generation technology
innovations given the rapid changes occurring in the power industry,
especially with the recent initiatives toward a smart grid. Platform: |
Size: 2853888 |
Author:zaman |
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Description: 为把中国南方网公司建设成为营型、服务型、一体化、现代化、国内领先、国际著名的企业，实现南方电网统一开放、结构合理、技术先进、安全可靠的发展目标，规范南方电网城市配电网的规划、设计、建设及改造工作，提高与电网设备装备水平，保证配电网安全、稳定、可靠、经济运行，满足南方五省（区）城市用电需要，特制定本导则。-WASHINGTON China to build the company into the camp, service-oriented, integrated, modernized, leading domestic and international famous enterprises, and China Southern Power Grid unified, open, reasonable structure, advanced technology, safe and reliable development goals, norms city with China Southern Power Grid network planning, design, construction and renovation work to improve the level of equipment and network equipment to ensure the distribution network secure, stable, reliable and economic operation, to meet the five southern provinces (district) city electricity needs, formulated guidelines. Platform: |
Size: 382976 |
Author:galen |
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Description: Distributed generation of electricity currently has a very important development. Several renewable and free energy sources like the wind (windmills), solar (photovoltaic or thermal) are increasingly used to produce electricity locally on remote sites. Because of the fickleness of the wind and light, energy management is one of the
major challenges in wind power systems from the grid, as well as PV-diesel systems. We present in this paper, the design and implementation of an electronic load control module and optimal management of production for hybrid energy systems while ensuring the efficient.
Platform: |
Size: 719872 |
Author:meriem |
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Description: The face of electricity generation, transmission and distribution is changing due to economic, technology and environmental incentives. Recently, interactive and intelligent electricity grid structures which consist of interconnected small/medium sized generators, power electronic technologies and energy storage elements have been developed to address the major shortcomings of the traditional electricity grid structure. Microgrids are key elements of these emerging grid structures. Platform: |
Size: 3174400 |
Author:shatha |
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Description: 基于ARM和uC/OS-II的嵌入式电力参数监测主要通过对电网中电力参数数据的采集，数据分析和数据通信实现对电网性能的实时监测和继电保护。在基于uC/OS-II多任务的基础上，通过应用程序人机交互，实现电力的远程监测和控制。-Embedded power parameter monitoring based on ARM and uC/OS-II s main electricity grid parameters through data collection, data analysis and data communications to achieve real-time performance monitoring and power protection. Based on the basis of uC/OS-II multitask on human-computer interaction through applications, remote monitoring and control of power.
Platform: |
Size: 7168 |
Author:dongxiao |
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Description: 电功率是在该电能是由一个电路传送的速率。权力的单位是瓦特，每秒1焦耳。 电力通常是由电动发电机产生的，但也可以由源如电动电池供给的。它通常是通过一个电力电网供给到企业和家庭用电力工业。电力通常是由千瓦小时（3.6兆焦耳），其功率在千瓦乘以小时运行时间的产品出售。电力公用事业使用的电表，这使运行总计交付给客户的电能量的测量功率。-Electric power is the rate at which electrical energy is transferred by an electric circuit. The SI unit of power is the watt, one joule per second.
Electric power is usually produced by electric generators, but can also be supplied by sources such as electric batteries. It is generally supplied to businesses and homes by the electric power industry through an electric power grid. Electric power is usually sold by the kilowatt hour (3.6 MJ) which is the product of power in kilowatts multiplied by running time in hours. Electric utilities measure power using an electricity meter, which keeps a running total of the electric energy delivered to a customer. Platform: |
Size: 8931328 |
Author:Yu-Kuang CHUNG |
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Description: Modeling and simulation of a grid connected
wind-driven electricity generation system has been done. The
power conversion unit features a wind-turbine-driven PMSG, a
diode rectifier, and a dc/ac inverter-Modeling and simulation of a grid connected
wind-driven electricity generation system has been done. The
power conversion unit features a wind-turbine-driven PMSG, a
diode rectifier, and a dc/ac inverter Platform: |
Size: 911360 |
Author:hghydggh |
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Description: The only emissions associated with PV power generation are those the production
of its components. After their installation they generate electricity the solar
irradiation without emitting greenhouse gases. In their lifetime, which is around 25
years, PV panels produce more energy than that for their manufacturing [2]. Also they
can be installed in places with no other use, such as roofs and deserts, or they can
produce electricity for remote locations, where there is no electricity network. The latter
type of installations is known as off-grid facilities and sometimes they are the most
economical alternative to provide electricity in isolated areas.-The only emissions associated with PV power generation are those the production
of its components. After their installation they generate electricity the solar
irradiation without emitting greenhouse gases. In their lifetime, which is around 25
years, PV panels produce more energy than that for their manufacturing [2]. Also they
can be installed in places with no other use, such as roofs and deserts, or they can
produce electricity for remote locations, where there is no electricity network. The latter
type of installations is known as off-grid facilities and sometimes they are the most
economical alternative to provide electricity in isolated areas. Platform: |
Size: 1405952 |
Author:Prithvi |
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Description: 关于电动汽车充电桩对电网的影响，电动汽车的接入电网时间分配和优化。-About electric vehicle charging pile for power grid, the influence of electric vehicles connected to the electricity grid time allocation and optimization. Platform: |
Size: 23771136 |
Author:wangyaya |
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Description: he main focus of this project is to develop an algorithm for keeping the household energy
consumption below a limit specified by the utility, during peak hours. By shifting the household
energy consumption to off peak hours, the total demand of the power grid can be reduced during
peak hours and thereby the probability of power grid failures as well as overloading of the network
elements can be reduced. As a result, the electricity cost can also be reduced. Platform: |
Size: 4096 |
Author:Tamal |
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Description: 随着我国经济的高速发展，对电力输电网电厂设备等基础设施的安全运行也提出了更高的要求，各大电力公司均在线路、设备的巡检和维护上投入了大量的人力、物力。但是，由于技术条件的限制，使得电力巡检环节上存在巡检效率低，难于管理等诸多不足，同时，原有的手工记录和报告形式也极大的限制了电力运行管理现代化的建设，管理部门的信息化管理也是一种管理的必然趋势，针对这些问题，电力设备巡检系统就有了开发的必然性和必要性。本产品是一种设备智能巡检系统，主要用于电力设备管理部门对设备的巡检以及维修工作的管理。(With the rapid development of China's economy, the safe operation of power grid power plant equipment and other infrastructure is also put forward higher requirements, the major power companies in the inspection and maintenance of equipment line, put a lot of manpower and material resources. However, due to technical limitations, the link existing power patrol inspection efficiency is low, difficult to manage such problems, at the same time, the construction of the original manual record and report form also limits the power of modern operation management, information management management is the inevitable trend of a kind of management, to solve these problems, the electric power system equipment inspection has the inevitability and necessity of development. This product is a kind of equipment intelligent patrol system, which is mainly used for the inspection of the equipment and the management of the maintenance work in the electric power equipment management department.) Platform: |
Size: 11242496 |
Author:luyangming
|
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Description: 风电、太阳能发电、生物质能发电等可再生能源发电已成为电力系统未来重要的发展方向之一。为促进可再生能源发展，针对可再生能源发电及其接网工程，我国出台了可再生能源补贴政策。可再生能源发电上网电价与燃煤脱硫标杆电价的差额部分，由可再生能源补贴资金支付，其中，分布式光伏发电按照0.43元/kWh进行度电补贴。根据国家政策，目前我国可再生能源补贴附加征收标准为0.19元/kWh。为支撑2020年我国可再生能源规模化发展，需要准确测算2020年我国可再生能源补贴资金需求，并明确资金缺口疏导方法。(The generation of renewable energy, such as wind power, solar power generation and biomass power generation, has become one of the important future development direction of power system. In order to promote the development of renewable energy, the renewable energy subsidy policy has been introduced in China for renewable energy generation and its network engineering. The difference between renewable energy generation grid price and coal-fired desulphurization benchmark electricity price is paid by renewable energy subsidy fund, of which distributed photovoltaic generation is subsidized by 0.43 yuan /kWh. According to the national policy, the additional collection standard for renewable energy subsidies in China is 0.19 yuan /kWh. In order to support the large-scale development of renewable energy in China in 2020, we need to accurately estimate the demand for renewable energy subsidies in China in 2020 and clarify the way of financing gaps.) Platform: |
Size: 510976 |
Author:阿阿阿信 |
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Description: 假设微电网中有风、光、微型燃气轮机、蓄电池，且已知各时段负荷需求；微电网可并网运行，当微网内部发电量较大时，可向电网卖电，而当内部发电不足时，可从大电网购电，价格参考实时电价。考虑各机组运行成本、燃料成本、污染物处理成本、以及买卖电支出或收益。该程序可解决在并网运行模式下，各机组出力如何分配才能达到经济最优的问题。(Suppose there are wind, light, micro gas turbines and batteries in the microgrid, and the load demand is known at each time period; the microgrid can be connected to the grid for operation; when the microgrid has a large amount of internal power generation, it can sell electricity to the grid, and when the internal power generation is insufficient At that time, electricity can be purchased from the big grid, and the price can be referenced to real-time electricity prices. Consider each unit's operating costs, fuel costs, pollutant disposal costs, and trading power expenses or benefits. This procedure can solve the problem of how each unit's output can be distributed to achieve economical optimization in the grid-connected operation mode.) Platform: |
Size: 1024 |
Author:咩彧咩彧 |
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Search - power electricity grid