CAJ | 학술논문

以南方某城市中压配电网运行风险评估的工程实例为背景，以提高城市电网的供电可靠性为目的，提出了在线路或变压器检修时能否对城市中压配电网进行合环操作的决策方案。给出了合环操作示意图，并据此对城市中压配电网的合环操作问题进行了分析。阐明了合环操作的最终目的是为了转带负荷后再解环运行的观点，进而提出了判断是否可以执行合环操作的决策方案，解释了不能合环的原因，揭示了合环后电流过大的机理，并给出了应对措施，创造了更有利于合环的条件。实例分析验证了决策方案的可行性和有效性。
이남방모성시중압배전망운행풍험평고적공정실례위배경，이제고성시전망적공전가고성위목적，제출료재선로혹변압기검수시능부대성시중압배전망진행합배조작적결책방안。급출료합배조작시의도，병거차대성시중압배전망적합배조작문제진행료분석。천명료합배조작적최종목적시위료전대부하후재해배운행적관점，진이제출료판단시부가이집행합배조작적결책방안，해석료불능합배적원인，게시료합배후전류과대적궤리，병급출료응대조시，창조료경유리우합배적조건。실례분석험증료결책방안적가행성화유효성。
On-the-basis-of-an-engineering-project-of-mid-voltage-distribution-network-operation-risk-assessment-in-a-south-city,-for-the-purpose-of-improving-the-reliability-of-power-supply-for-the-urban-network,-a-decision-scheme-of-whether-the-loop-closing-operation-for-urban-mid-voltage-distribution-network-can-be-executed-during-overhauling-the-line-or-transformer-is-presented.-This-paper-shows-a-schematic-diagram-of-loop-closing-operation-and-accordingly-analyzes-loop-closing-operation-in-urban-mid-voltage-distribution-network,-clarifies-the-ultimate-goal-of-looping-closing-is-for-the-point-that-with-a-load-transfer-after-loop-opening-system-and-then-puts-forward-a-decision-scheme-to-judge-whether-can-execute-loop-closing-operation,-construction-reasons-of-can-not-execute-loop-closing-operation,-interprets-the-principle-of-excessive-posterior-loop-current,-and-gives-countermeasures-to-create-beneficial-conditions-to-loop-closing-operation.-The-analyses-of-examples-show-that-the-decision-scheme-is-correct-and-effective.