Emerging Power Grid Integration in a Unified Simulation Environment

统一仿真环境中的新兴电网集成

• 批准号: RGPIN-2015-04711
• 负责人: Marti, Jose
• 金额: $ 2.19万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=683447
• 关键词: Emerging; Power; Grid; Integration; Unified

With the emergence of distributed generation and increased online measurements and optimization, the traditional separation in the analysis and operation of the high-voltage transmission system and the lower voltages distribution systems is disappearing. In transmission, the requirement of 60 Hz synchronicity in maintaining angle and frequency stability across an extensive network of interconnections is "naturally" aided by the large inertia of the rotating masses of the large thermo and hydro generators. Wind and solar plants, on the other hand, require sophisticated control mechanisms, together with fast switching power electronic devices, to create a "synthetic" inertia that allows their coupling and join operation with the 60 Hz main grid.***     *The 60-Hz synchronicity of the new grid will require a close integration of the traditional grid with inertias in the order of the seconds, determined by the mechanical masses of the large hydro and thermo generators, working together with inertias in the order of the milliseconds, created by fast controllers in wind and solar farms driven by power electronic valves with time constants in the order of the microseconds. Three orders of time constants will be working together. In terms of solution techniques, electrical voltage and current phasor solutions in the main grid will have to "live together" with faster changing electrical voltages and currents in the wind and solar plants and with even faster changing voltages and currents in the power electronics converters.***     *The increased penetration of distributed non-dispatchable Variable Energy Resources (VER) will affect all aspects of the existing grid's design and operation, including technical aspects, economic and business models, and social and environmental impacts. With the new integrated grid, the optimization objectives of high voltage transmission will have to be integrated with the optimization objectives of distribution and customer levels. These three levels of objectives are not always in agreement with each other and individual optimums will have to be combined with global optimums. A fine granularity distributed control system, and a correspondingly extensive layer of ICT infrastructure, will be required to support the extended grid. The increased complexity will make the grid more sensitive to internal failures and more vulnerable to external cyber attacks.***     *Under this grant, we will advance the development of a unified comprehensive simulation environment that can integrate the complexity and multiplicity of objectives of the 21st century power system grid.

随着分布式电源的出现和在线测量和优化的增加，传统的高压输电系统和低压配电系统分析和运行的分离正在消失。在传输中，在广泛的互连网络中保持60赫兹的同步性以保持角和频率稳定性的要求是“自然”的，这得益于大型火力发电和水力发电机组的转动质量的大惯性。另一方面，风能和太阳能发电厂需要复杂的控制机制，以及快速开关的电力电子设备，以创建一种“合成”惯性，使它们能够与60赫兹的主电网耦合和结合运行。*新电网的60赫兹同步性将需要将传统电网与以秒为量级的惯性紧密结合，惯性以秒为量级，由大型水电和热力发电机的机械质量决定，与由风电场和太阳能发电场的快速控制器创造的毫秒量级的惯性一起工作，这些惯性是由电力电子阀驱动的，时间常数为微秒量级。三个数量级的时间常量将一起工作。在解决方案技术方面，主电网中的电压和电流相量解决方案必须与风能和太阳能发电厂中变化更快的电压和电流以及电力电子变流器中变化更快的电压和电流“共存”。*分布式不可调度可变能源(VER)渗透率的增加将影响现有电网设计和运行的方方面面，包括技术方面、经济和商业模式以及社会和环境影响。在新的一体化电网中，高压输电的优化目标必须与配电和客户层面的优化目标相结合。这三个层次的目标并不总是彼此一致的，必须将个人最优与整体最优结合起来。需要一个细粒度的分布式控制系统和相应广泛的信息和通信技术基础设施层，以支持扩展的电网。复杂性的增加将使电网对内部故障更加敏感，更容易受到外部网络攻击。根据这笔赠款，我们将推进开发一个统一的综合仿真环境，该环境可以整合21世纪电力系统电网目标的复杂性和多样性。