Gómez-Ramírez Gustavo Adolfo, García-Santander Luis, Zubiaga Lazkano Markel, Meza Carlos
Escuela de Ingeniería Electromecánica, Intituto Tecnológico de Costa Rica, Cartago, 159-7050, Costa Rica.
Departamento de Ingeniería Eléctrica, Universidad de Concepción, Chile, Concepción, 4030000, Chile.
Heliyon. 2024 Aug 6;10(16):e35710. doi: 10.1016/j.heliyon.2024.e35710. eCollection 2024 Aug 30.
Developing a reliable power grid and investing in non-conventional renewable energy resources pose problems for low- and medium-income countries. Frequently, maintaining a robust power grid infrastructure can present challenges in terms of reliability, resilience, and flexibility. This article presents a methodology for improving power flexibility in susceptible power systems through the utilization of Battery Energy Storage Systems (BESS). The methodology entails the examination of power stability, operating conditions, and security criteria in order to identify suitable locations for storage allocation. A study was conducted utilizing the Electrical Transient and Analysis Program (ETAP®) software to simulate the Central American power transmission grid. The results of the study indicate that including storage systems to offer virtual inertia and backup during emergency situations is a recommended strategy for mitigating potential challenges. The study suggests that applying specific criteria for allocation and sizing at critical points in sensitive systems can enhance power transfer flexibility, eliminating potential constraints. The Central American electrical Power System, which faces power transfer limitations, is well-suited for BESS. In severe contingencies, such as when the system frequency drops to 58.75 Hz and power transfer between Mexico and Central America exceeds 300 MW with voltage levels below 0.97 pu, BESS can help mitigate these issues. The solution involves deploying BESS both centrally and distributively. Results show decreased instability, with power increases not exceeding 300 MW for more than 11 study cycles in all scenarios. The approach includes a BESS with an installed capacity of 1,060 MWh/160 MW and a virtual inertia of H=6s.
发展可靠的电网并投资于非常规可再生能源资源，对中低收入国家来说存在诸多问题。通常，维护强大的电网基础设施在可靠性、恢复力和灵活性方面都会面临挑战。本文提出了一种通过利用电池储能系统（BESS）来提高易受影响的电力系统功率灵活性的方法。该方法需要检查电力稳定性、运行条件和安全标准，以便确定储能分配的合适位置。利用电气暂态分析程序（ETAP®）软件进行了一项研究，以模拟中美洲输电电网。研究结果表明，在紧急情况下纳入储能系统以提供虚拟惯性和备用电源，是缓解潜在挑战的推荐策略。研究表明，在敏感系统的关键点应用特定的分配和规模标准，可以提高电力传输灵活性，消除潜在限制。面临电力传输限制的中美洲电力系统非常适合采用电池储能系统。在严重的突发事件中，例如当系统频率降至58.75Hz，墨西哥和中美洲之间的电力传输超过300MW且电压水平低于0.97标幺值时，电池储能系统有助于缓解这些问题。解决方案包括集中和分散部署电池储能系统。结果显示不稳定性降低，在所有场景中，超过11个研究周期的功率增加不超过300MW。该方法包括一个装机容量为1060MWh/160MW且虚拟惯性为H = 6s的电池储能系统。
