Holistic Methodology for the Optimal Planning of Wide-Area Interconnected Hybrid and Multimodal AC-DC Power Systems under Uncertainties

几十年来，电力工业一直面临着现代能源利用的挑战，其特点是对电力的强烈依赖，从而导致对高可靠性和高质量电力需求的稳步增长。目前德国和欧洲关于能源转型和减少二氧化碳排放的能源政策要求在未来50年内整个能源供应格局发生根本性的变化。这些问题导致了从被动配电网络(ADN)向主动配电网络(ADN)的过渡，这将许多运营管理职责和规划问题从输电网络转移到配电层面。因此，人们提出了智能功率单元(SPC)的概念，以解决电力系统的过渡和未来运行特性，它被定义为电力系统的一个可控部分，其中基于电力电子的分布式发电机、存储设备和传统的灵活负载通过中低压交-直流网络和多模接口相互连接。电力系统的未来可以被规划为一个基于电力电子技术的分散、混合和多模式的交-直流电力系统，由大量不同数量的广域互联和协调的SPC组成，必须从规划阶段起对其进行最佳定义。因此，该项目将提出一种规划SPCAS蜂窝组件的整体方法，以扩大广域互联的混合和多模式AC-DC电力系统。该方法的目的是考虑一种可调整的规划战略，使其适用于具有不同时间框架、规划类型、业务案例、技术要求、地理条件、所涉利益攸关方等的广泛案例研究。此外，SPC的主要规划特征，如将业务特点纳入规划阶段，通过真正的多目标规划问题考虑多个矛盾的规划目标，以及对高水平不确定性的有效建模，将在这一方法中得到模板。因此，人们期望方法学成为一种有用的计划工具，首先根据初始计划条件识别和配置计划案例，然后选择所需的数学模型、优化问题特征和求解算法，第二，获得可能的帕累托解的最优采购，以完成复杂运营特征和不确定性下的计划问题解决方案的最终决策。

Electric power industry for decades has faced the challenges ofmodern energy usage, which has been characterized by a strongdependency to electrical energy and consequently, to a steadyincrease of the demand of electricity with high reliability and quality.The current German and European energy policies concerning theenergy transition and the reduction of CO2 emission requires a radicalparadigm change of the whole energy supply landscape in the next 50years. These issues have led to a transition from passive to activedistribution networks (ADN), which shifts many operationalmanagement duties and planning issues from the transmissionnetwork to the distribution level. Thus, the concept of Smart PowerCells (SPCs) has been proposed to tackle the transition and futureoperation characteristics and it is defined as a controllable subsectionof the power system where power-electronics-based electricdistributed generators, storage devices and conventional, as well asflexible loads are interconnected via medium and low voltage AC-DCnetworks and multimodal interfaces. The future of the power systemscan be projected as a power-electronics-based decentralized hybridand multimodal AC-DC power system formed by a large and variablenumber of wide area interconnected and coordinated SPCs, whichmust be optimally defined from the planning stage. Consequently, thisproject will propose a holistic methodology for the planning of SPCsas cellular components for the expansion of wide-area interconnectedhybrid and multimodal AC-DC power systems. The methodology isintended to consider an adaptable planning strategy, which allows itsapplicability to a comprehensive range of case studies with differenttime frames, planning types, business cases, technical requirements,geographical conditions, involved stakeholders etc.. Furthermore, keySPC’s planning features such as the integration of operationalcharacteristics into the planning stage, the consideration of multiplecontradictory planning objectives via a true-multi-objective planning problem and the effective modelling of high-level uncertainties will becontemplated in this methodology. Thus, it is expected that themethodology becomes a useful planning tool to first, identify andconfigure the planning-case based on initial planning conditions andthe subsequent selection of the required mathematical models,optimization problem characteristics and solving algorithms, andsecond, the optimal procurement of possible Pareto solutions toaccomplish a final decision making for the solution to the planningproblem under complex operational characteristics and uncertainties.