Smart micro hybrid renewable energy systems

智能微混合可再生能源系统

• 批准号: 419119-2011
• 负责人: Bakhshai, Alireza
• 金额: $ 8.74万
• 依托单位: Queen's University
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=551602
• 关键词: Smart; micro; hybrid; renewable; energy

Traditional "central" power plants are inefficient, result in considerable environmental impact, and are typically far from load centres. In contrast, renewable distributed generation plants, with energy sources such as wind and solar, result in increased energy efficiency, reduced carbon emissions, improved power quality and reliability, and reduced line losses. Wind and solar energy system designers face a significant problem in the random, fluctuating nature of these energy sources. However, it is generally observed that wind and sun intensity have a complementary nature; sunny days normally have calm winds, and strong winds often occur on cloudy days, in the evening and at night. Thus it is possible to achieve a more continuous energy supply with much higher generating capacity factors if wind and solar energy systems are combined with storage devices and/or local generating units in what is known as a hybrid setup, solving the problem of energy fluctuations in plant output. To reduce the size of energy storage devices and increase system reliability while maximizing renewable resource use, local distributed energy resources can be coupled to form micro-sources based on smart hybrid renewable energy systems. A micro-source with plug-and-play capability is versatile, as various kinds of energy sources can be added to or removed from the system at any time without affecting the performance of other units. Geographic location, green incentives, fuel costs, electricity price arbitrage, and grid reliability at the location are all involved in the selection of appropriate micro-source building units. In such smart hybrid micro-sources, control and management of power exchange among units is critical to achieve stable operation and optimal utilization of the hybrid system. The proposed research presents a comprehensive plan to address multiple issues related to control and power management of smart coupled hybrid systems for standalone and grid-connected applications.

传统的“中央”发电厂效率低下，对环境造成相当大的影响，而且通常远离负荷中心。相比之下，使用风能和太阳能等能源的可再生分布式发电厂提高了能源效率，减少了碳排放，改善了电力质量和可靠性，并减少了线路损耗。风能和太阳能系统的设计者面临着一个重要的问题，即这些能源的随机性和波动性。然而，通常观察到风和太阳强度具有互补的性质；晴天通常有平静的风，而阴天、傍晚和夜间经常有强风。因此，如果将风能和太阳能系统与储存装置和/或当地发电机组结合起来，即所谓的混合装置，就有可能以更高的发电能力系数实现更连续的能源供应，从而解决电厂输出能量波动的问题。为了在最大限度地利用可再生资源的同时减小储能设备的尺寸，提高系统可靠性，可以将局部分布式能源耦合成基于智能混合可再生能源系统的微源。具有即插即用功能的微源是通用的，因为各种能源可以随时添加或从系统中移除，而不会影响其他单元的性能。地理位置、绿色激励、燃料成本、电价套利和电网可靠性都涉及到选择合适的微源建筑单元。在这种智能混合微源中，单元间电力交换的控制和管理是实现混合系统稳定运行和优化利用的关键。提出的研究提出了一个全面的计划，以解决与独立和并网应用的智能耦合混合系统的控制和电源管理相关的多个问题。