Advanced Tools for Modelling and Analysis of Evolving Power and Energy Systems

随着可再生能源和电力电子技术的日益使用、直流技术的进一步适应、智能能源电网的不断发展以及与通信系统和传感器的集成，现代电力能源系统的复杂性正在迅速增加。计算机模拟使现在和未来电网的安全设计和优化运行成为可能。世界各地控制中心和研究机构的数千名工程师正在全职开发模型和进行研究。由于仿真被多次使用(通常是迭代的)，因此模型的准确性和效率以及分析系统动力学(即提取用于稳定性分析的信息)的工具的能力是非常重要的。即使是模拟速度和扩展能力的小幅提高也可能在全球范围内带来显著的节省，并防止潜在的停电和故障。 加拿大在开发最先进的解决办法和计算机化工具方面一直处于领先地位，能够设计和运行各种规模的电力系统。电磁暂态程序(称为EMT或EMTP)，如ATP、Microtran、EMTP-RV、PSCAD、RTDS、RT-LAB、MatLab的Simscape Electric和Powertech Labs的暂态稳定工具DSATools等，都是由加拿大研究人员发起和/或开发的，现在作为行业标准工具在世界各地得到了压倒性的使用。 这项拟议的研究延续了UBC在推进电网建模、仿真和分析方面的长期传统。我们正在开发计算效率最高的带有旋转电机和开关转换器的设备模型。其目标是启用下一代仿真工具，以解决电力系统中日益广泛的暂态现象，电力电子设备的存在越来越多。未来的模拟工具将能够非常有效地分析系统，识别任何潜在或现有的问题，并帮助提供解决方案，同时具有可伸缩性和可承受能力。我们的研究设想了接口/集成/混合EMTP和状态变量类型的解决方案以及动态和静态相量类型的解决方案，其中每种方法都可以在子系统级别上应用，从而最大限度地利用每个引擎，同时获得系统每个部分所需的精度和分辨率。我们专注于建立所谓的基于阻抗的模型，该模型可以基于现有的EMT仿真引擎进行数值构建，并随后用于在涵盖超同步和次同步谐振以及与控制器相关的交互的广泛频率范围内为系统级分析提供新的信息。新的模型、解决方案及其在模拟器中的实现将向加拿大和世界各地的研究人员和工程师提供，使可再生能源能够更广泛地整合，并设计出更好的能源电网。

The complexity of modern electrical energy systems is fast increasing with the growing use of renewable sources and power electronics, further adaptation of DC technologies, evolving smart energy grids and integration with communication systems and sensors. Computer simulations enable the safe design and optimal operation of present and future electric grids. Thousands of engineers in control centers and research facilities around the world are working full-time developing models and conducting studies. Since the simulations are used many times (often iteratively), the accuracy and efficiency of models and the capability of tools to analyze the system dynamics (i.e. extract information for analysis of stability) are very important. Even a fractional increase in simulation speed and expanded capabilities may result in significant savings worldwide and prevent potential blackouts and failures. Canada has been a leader in developing state-of-the-art solution approaches and computerized tools that enable the design and operation of electric power systems of various scales. The electromagnetic transient programs (known as EMT or EMTP) e.g. ATP, Microtran, EMTP-RV, PSCAD, RTDS, RT-LAB, the Matlab's Simscape Electrical, and Powertech Labs transient stability tools DSATools, etc., all have been originated and/or developed by Canadian researches and are now overwhelmingly used throughout the world as industry-standard tools. The proposed research continues the UBC's long-time tradition in advancing the modelling, simulation, and analysis of power grids. We are developing the most computationally efficient models of devices with rotating electrical machines and switching converters. The goal is to enable the next generation of simulation tools needed to address the widening range of transient phenomena in power systems with an increasing presence of power electronics. The future simulation tools will have the capabilities to very effectively analyze the system, identify any potential or existing problems and assist in providing a solution, while being scalable and affordable. Our research envisions interface/integrate/mix EMTP- and state-variable-type solutions as well as dynamic and static phasor-type solutions, where each approach may be applied on a subsystem level making the best use of each engine while obtaining the desired accuracy and resolution needed for each part of the system. We are focusing on establishing the so-called impedance-based models that can be numerically constructed based on existing EMT simulation engine and subsequently used to provide new information for system-level analysis in a wide range of frequencies covering supper- and sub-synchronous resonances and controller-related interactions. The new models, solution approaches, and their realization in simulators will become available to researchers and engineers in Canada and worldwide, enabling wider integration of renewable sources and the design of a better energy grid.