共查询到19条相似文献,搜索用时 109 毫秒
1.
发展新能源是我国能源建设实施可持续发展战略的需要,对促进电力工业结构调整、减少环境污染、推进技术进步、培育新的经济增长点具有重要意义。风力发电是新能源发电中技术最成熟、最具规模化开发条件和商业化发展前景的发电技术之一。近年来,我国风力发电得到了快速发展,已成为电力工业的组成部分。为了进一步促进我国风力发电事业快速、健康发展,提出如下意见: 一、各级电力行政主管部门和电力企业要从加强环境保护、调整电力工业结构和推进技术进步的高度,充分认识发展风力发电的重要性,积极促进风力发电事业的发展。国家将根据… 相似文献
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
本文对如何解决新疆风能资源进行大规模开发时所遇到的瓶颈进行了探讨,提出了一种解决问题的新思路。用详细的数据介绍了新疆丰富的风能资源分布,讨论了在大规模开发时遇到的电网稳定性、有效负荷需求不足以及没有联网电网的支持等问题,最后,根据新疆拥有丰富的天然气资源,提出了采用一种新型的风电-燃气轮机互补发电系统来彻底解决风电场负荷的波动对电网稳定性不利的影响,为新疆的风能大规模开发提供了一种新的可能。 相似文献
12.
力促大规模非水可再生能源发展 总被引:1,自引:1,他引:0
严陆光 《电网与水力发电进展》2009,25(3):1-4
综述了我国能源与电力可持续发展的现状和未来,着重阐述了风力发电、光伏发电、太阳能热发电等可再生能源发电发展的主要特点和问题,最后建议加快规划与部署建设以可再生能源为主体的综合能源基地,积极构建我国能源可持续发展体系。 相似文献
13.
国外统计数据表明,近几年世界风电持续高速发展。据国内统计数据,我国2006年、2007年风电装机容量连续两年翻番。我国内资风电设备制造企业已形成3个梯队,2007年我国内资风电设备制造企业所占市场份额首次超过外资企业。介绍了我国风能资源的最新评估,在假设条件下,全国陆上风能可开发资源量为8×10^8kW,近海为1.5×10^8kw:陆上和近海合计可提供风电电量约为2×10^12kW·h。预计我国风电装机容量2010年和2020年只有分别达到2000×10^4kW和1×10^8kw时才能实现非水电可再生能源发电量的强制性市场份额目标。 相似文献
14.
风能水能资源的互补开发、综合利用是一种有效的可再生能源利用方式。通过阐述国际及国内风电发展现状,分析云南电力结构,研究云南风能资源特点,提出在云南建立基于风能水能互补发电的可再生能源体系。 相似文献
15.
风力发电-发展潜力巨大的清洁能源 总被引:4,自引:0,他引:4
介绍了我国仍至全球的风电资源以及风电建设的发展;分析了风力发电的优缺点和风能合理利用的技术,提出借助变频技术和电力电子(PE)控制技术,并应用结构简单,坚固可靠、维护方便,成本低廉的异步发电机,可实现高质量电能的输出,使风电系统处于最佳的风能利用状态。 相似文献
16.
随着风电等新能源大规模并网,其出力的不确定性给电力系统日前调度带来很大挑战。传统的研究方法多是假设风电功率预测误差服从某种概率分布,但风电功率预测误差受到多种因素影响,概率分布模型无法准确描述其特性。为此,采用基于神经网络的组合预测方法对风电功率误差进行建模,再将预测的风电误差加入到包含热电机组、火电机组、风电、储热装置和电锅炉的热电联合优化调度模型中,最后以实际的10机系统为例进行仿真,分析了风电预测误差对机组出力、风电消纳及调度成本的影响。结果表明,与传统方法相比,所建模型可减少机组燃煤成本与旋转备用成本,降低了经济调度成本,提高了风电消纳水平。 相似文献
17.
Wind energy utilization, especially onshore grid-connected wind power generation, has a history of 30 years in China. With the increasing attention to renewable energy development in recent years, wind energy has become the focus of academic research and policy-making. While the potential and advantages of wind energy are widely recognized, many questions regarding the effectiveness of policies and performances of current practices remain unanswered. This paper takes Inner Mongolia, the province that has the most abundant wind energy resources in China, as a case to assess the performance of Chinese onshore wind power projects, focusing on the institutional setting, economic and technological performance, as well as environmental and social impacts. Results show that China is experiencing a rapid growth in wind power generation, which brings China great environmental, energy security and social benefits. However, for a full development of wind energy in China a number of barriers need to be removed: high generation cost, low on-grid price, and stagnating development of domestic manufacture. These findings lead to three policy recommendations. 相似文献
18.
A statistical model for comparing future wind power scenarios with varying geographical distribution of installed generation capacity
下载免费PDF全文
![点击此处可从《风能》网站下载免费的PDF全文](/ch/ext_images/free.gif)
As installed wind generation capacity increases, understanding the effect of wind power on the electric power system is becoming more important. This paper introduces a statistical model that can be used to estimate the variability in wind generation and assess the risk of wind generation contingencies over a large geographical area. The analysis of the installed wind generation capacities is separated from the analysis of the spatial and temporal dependency structures. This enables the study of different future wind power scenarios with varying generation capacities. The model is built on measured hourly wind generation data from Denmark, Estonia, Finland and Sweden. Three scenarios with different geographical distributions of wind power are compared to show the applicability of the model for power system planning. A method for finding the scenario with the minimum variance of the aggregate wind generation is introduced. As the geographical distribution of wind power can be affected by subsidies and other incentives, the presented results can have policy implications. Copyright © 2015 John Wiley & Sons, Ltd. 相似文献
19.
Junji Kondoh 《风能》2010,13(6):529-541
Output power fluctuation of high penetration of wind power causes demand and supply imbalance in electric power systems and results in frequency deviation if the fluctuation is not fully compensated by other regulable power plants. In Japan, some electric utilities have started to accept only the wind farms which disconnect and give up generating power during light‐load periods with less adjustable reserve. Otherwise, wind farms are required to employ battery energy storage systems (BESSs) to charge the generated power during the light‐load periods. Instead of these uneconomical solutions, this paper proposes autonomous frequency regulation by controllable loads such as electric water heaters (EWHs). In the paper, the acceptable increase of wind power generation by the proposed load control has been evaluated quantitatively in the power system of the Hokkaido Island in Japan. The result indicates that the acceptable increase of wind power generation goes from 250 to 675 MW by applying the proposed autonomous frequency regulation on all EWHs, and the total cost to implement the autonomous frequency regulation on the EWHs is around 1/26 compared with a solution using BESSs. Copyright © 2009 John Wiley & Sons, Ltd. 相似文献