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首页> 外文会议>Conseil International des Grands Reseaux Electriques;International Council on Large Electric Systems;CIGRE session >Operation of Large Scale Autonomous Hybrid Power Supply System with Renewables
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Operation of Large Scale Autonomous Hybrid Power Supply System with Renewables

机译：具有可再生能源的大型自治混合动力电源系统的运行

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This paper presents the field experience of an innovative, autonomous hybrid energy systemfor a British Island, the Isle of Eigg.The people on Eigg have been dependent on their own produced energy, mostly by dieselgenerators. These have been switched off at night. Now the Isle of Eigg became almostindependent from oil imports from the mainland and from fossil power sources. Theautonomous hybrid energy system integrates multiple renewable power sources such as Wind(24 kW), Hydro (110 kW) and Solar (10 kW) together with two conventional Diesel gensets(2 × 64 kW). These power sources are distributed and coupled by a medium voltage grid overseveral kilometers. The power balance between the different loads and the different energygeneration must be guaranteed at all times. This complex system with different renewable andconventional power sources works automatically by means of a frequency and SOCdependent load management.In this paper, the technical data are analyzed, the energy balance is determined and theeconomical energy balance before and after the commissioning of the system will bediscussed. The hybrid system on Eigg Island is an example of a technical challenging off-gridproject. The system on the island provides the technology necessary to proof the potential oflarge sophisticated hybrid off-grid applications. The capacity of future projects withrenewable energy may be larger and may have different power sources, but they all can profitfrom the experience gained with the system on Eigg Island. The experience can besummarized as follows:1) Build-up of a large modular hybrid system with standard components out of seriesproduction is possible and effective.2) The integration of decentralized renewable power sources coupled and controlled by thegrid frequency is possible and reliable.3) The achievement of a very high service reliability by using a modular concept, and4) The application of modular series inverters enables easy service that can be done by localelectricians. As a result multiple benefits for the people on Eigg Island have been achieved since thecommissioning of the system. Similar to grid-based electricity supply, consumers now aresupplied with electrical power 24 hours a day and enjoy the advantages of using electricitywithout running and maintaining their own power generators. Also the dependency on oilimports from the mainland has been considerably reduced. Last but not least, consumers nowpay less than they did before this system was installed. The paper reveals that the electricitycosts for an average household is about 25-40 % of what they were previously compared tofuel for their own generator.The system of Eigg Island provides the technology necessary to proof the potential of largesophisticated hybrid off-grid applications. This system should be considered as a referenceand standard for future projects for example village electrification projects in developingcountries based on local renewable energy sources.
机译：本文介绍了一种创新的自主混合能源系统的现场经验 代表英属岛屿艾格岛。 艾格（Eigg）上的人们一直依靠自己生产的能源，主要依靠柴油 发电机。这些已在晚上关闭。现在，艾格岛几乎变成 独立于从大陆和化石能源进口的石油。这 自主混合能源系统集成了多种可再生能源，例如风能 （24 kW），水力（110 kW）和太阳能（10 kW）以及两个常规柴油发电机组 （2×64千瓦）。这些电源通过中压电网进行分布和耦合 几公里。不同负载和不同能量之间的功率平衡 必须始终保证生成。这个复杂的系统具有不同的可再生能源和 常规电源通过频率和SOC自动工作 依赖的负载管理。 本文对技术数据进行了分析，确定了能量平衡并确定了 系统调试之前和之后的经济能源平衡将是 讨论过。 Eigg岛上的混合动力系统是技术挑战性离网的一个例子 项目。岛上的系统提供了必要的技术来证明潜在的 大型复杂的混合离网应用程序。未来项目的能力 可再生能源可能更大，可能具有不同的动力源，但它们都可以从中获利 从在Eigg Island上使用该系统获得的经验。经验可以 总结如下： 1）建立大型模块化混合动力系统，其标准组件不属于串联 生产是可能的和有效的。 2）整合分散式可再生能源，并由其控制 电网频率是可能且可靠的。 3）通过使用模块化概念实现了很高的服务可靠性，并且 4）模块化串联逆变器的应用使维修工作很容易，可以通过本地方式完成 电工。因此，自从 系统的调试。类似于基于电网的电力供应，现在的消费者 全天24小时提供电力，并享有用电的优势 无需运行和维护自己的发电机。还有对石油的依赖 从大陆的进口已大大减少。最后但并非最不重要的是，现在的消费者 支付比安装此系统之前少的钱。纸揭示了电 一个普通家庭的成本大约是以前的25％至40％ 为自己的发电机供油。 艾格岛（Eigg Island）的系统提供了必要的技术，以证明巨大的潜力 复杂的混合离网应用程序。该系统应被视为参考 和未来项目的标准，例如正在开发中的乡村电气化项目 国家以当地的可再生能源为基础。

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