CAJ | 학술논문

大容量冲击负荷的生产运行可对邻近电厂的机组安全造成不利的影响.采用EMTP程序作为仿真工具,分析了在EMTP中建立冲击负荷非线性模型并进行冲击负荷对邻近发电机组影响的电磁暂态仿真的可行性.从冲击负荷对机组的影响,尤其是对轴系的暂态扭矩冲击方面,详细地探讨了冲击负荷对机组影响的评估指标,提出了以轴系疲劳寿命损耗和电磁功率变化量指标进行机组轴系扭振影响评估时的准则.通过对实际电网的仿真分析,验证了该准则的实用性和有效性.
대용량충격부하적생산운행가대린근전엄적궤조안전조성불리적영향.채용EMTP정서작위방진공구,분석료재EMTP중건립충격부하비선성모형병진행충격부하대린근발전궤조영향적전자잠태방진적가행성.종충격부하대궤조적영향,우기시대축계적잠태뉴구충격방면,상세지탐토료충격부하대궤조영향적평고지표,제출료이축계피로수명손모화전자공솔변화량지표진행궤조축계뉴진영향평고시적준칙.통과대실제전망적방진분석,험증료해준칙적실용성화유효성.
High-capacity impact loads can produce adverse effects on the safe operation of generators at nearby power plants. EMTP was selected as the simulation tool, and its feasibility on non-linear modeling of impact loads and electromagnetic transient simulation for large power system was firstly analyzed. From the aspect of effects of impact loads on generators, particularly, on transient shaft torsional torques, indices for evaluating the effects were discussed in detail, and guidelines for evaluating shaft torsional oscillation, with respect to Fatigue Life Expenditure (FLE) and electromagnetic power were put forward. Finally, practicability and validity of the proposed guidelines was verified by the way of simulation and analysis based on an actual power system.