Research on the Relationship Between Power Systems and Their Automation and Relay Protection
电力系统及其自动化和继电保护的关系研究

摘要

随着新型电力系统建设推进，电力系统及其自动化主要负责电网稳态监测、运行调控与故障后自愈重构，保障电 网常态化高效运行；继电保护承担电网暂态故障快速切除任务，是自动化系统可靠运行的安全底线。两套系统共享采 集、通信与控制硬件，形成完整的电网运行管控闭环。当前电网运行中仍存在设备数据割裂、动作逻辑不匹配、保护 自适应能力不足、数字化通信存在安全隐患等协同问题。本文系统梳理两大体系的职能边界、依存关系与技术融合特 征，分析自动化技术对继电保护迭代的驱动作用，针对现存协同缺陷提出一体化改造、逻辑协同设计、自适应整定、 网络防护升级等优化策略，可为新能源电网二次系统安全运维与技术优化提供参考。

Abstract

With the advancement of new power system construction, power systems and their automation are mainly responsible for steady-state grid monitoring, operation regulation, and post-fault self-healing reconstruction, thereby ensuring the efficient normal operation of the power grid. Relay protection undertakes the task of rapidly removing transient faults in the power grid and serves as the safety baseline for the reliable operation of automation systems. The two systems share data acquisition, communication, and control hardware, forming a complete closed-loop system for power grid operation and control. At present, grid operation still faces coordination problems such as fragmented equipment data, mismatched action logic, insufficient adaptive protection capability, and security risks in digital communication. This paper systematically reviews the functional boundaries, interdependence, and technical integration characteristics of the two systems, analyzes the driving role of automation technology in the iteration of relay protection, and proposes optimization strategies for existing coordination deficiencies, including integrated transformation, coordinated logic design, adaptive setting, and network protection upgrading. The study can provide a reference for the safe operation, maintenance, and technical optimization of secondary systems in new energy power grids.