申婉婷,赵晋泉,刘志鹏,于芃,邢家维
SHEN Wanting,ZHAO Jinquan,LIU Zhipeng,YU Peng,XING Jiawei

• 1:上海电力大学电气工程学院
• 2:国网山东省电力公司电力科学研究院

摘要(Abstract)：

光储荷微电网在偏远地区易受自然灾害等影响被动离网，或为避免上级电网扰动而主动离网，其频率安全与自治运行能力面临挑战。针对上述问题，提出一种计及频率安全的光储荷微电网自治经济运行优化策略。将构网型储能与可调节负荷作为调峰、调频协同自治资源，以自治运行优先为目标，降低对外依赖并提升供电可靠性；构建线性频率安全约束，优化求解惯量和一次调频容量，在极端场景下当现有惯量与一次调频资源不足时，通过弃光或弃负荷进行补充调节，保障并网联络线开断后的频率安全。算例结果表明，所提策略能够有效保障光储荷微电网的频率安全，提升其自治运行能力。
PV-storage-load microgrids in remote areas may become islanded due to natural disasters, or may intentionally disconnect from the main grid to avoid disturbances in the upstream grid, posing challenges to frequency security and autonomous operation capability. To address these issues, an optimal autonomous economic operation strategy with frequency security constraints is proposed. Grid-forming energy storage and controllable loads are coordinated as autonomous resources for peak shaving and frequency regulation, with priority given to autonomous operation to reduce external dependence and enhance supply reliability. Linear frequency security constraints are established to optimally allocate inertia and primary frequency response capacity. Under extreme scenarios where available inertia and primary frequency response resources are insufficient, additional corrective actions are implemented through PV curtailment or load shedding to ensure frequency security after grid disconnection. Case study results demonstrate that the proposed strategy effectively ensures frequency security and improves the autonomous operation capability of PV-storage-load microgrids.

关键词(KeyWords)： 光储荷微电网;自治经济运行;构网型储能;频率安全
PV-storage-load microgrid;autonomous economic operation;grid-forming energy storage;frequency security

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金（51577049）;; 国网山东省电力公司科技项目（520626230115）

作者(Author): 申婉婷,赵晋泉,刘志鹏,于芃,邢家维
SHEN Wanting,ZHAO Jinquan,LIU Zhipeng,YU Peng,XING Jiawei

DOI: 10.19585/j.zjdl.202610006

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