CAJ | 학술논문

讨论了电力系统稳定性与安全性的从属关系，指出电网静态安全约束、暂态稳定约束和全过程安全评估宜分别在电网规划的不同步骤中考虑，提出了间歇性电源高渗透电网规划方案安全性评估流程。指出电力系统连锁反应事件部分过程具有开放的复杂巨系统的一些特性，其中一部分过程在仿真中难以准确模拟，需进行简化处理，而另一部分过程的前后事件之间具有强因果关系，这部分过程可采用改进的仿真软件进行模拟。提出了计及故障前发电系统状态的电网全过程风险评估计算方法，使用该方法，可将稳定设施费用和停电风险损失计入电网规划方案的综合年费用中，对方案进行安全性和经济性综合比较选择。
토론료전력계통은정성여안전성적종속관계，지출전망정태안전약속、잠태은정약속화전과정안전평고의분별재전망규화적불동보취중고필，제출료간헐성전원고삼투전망규화방안안전성평고류정。지출전력계통련쇄반응사건부분과정구유개방적복잡거계통적일사특성，기중일부분과정재방진중난이준학모의，수진행간화처리，이령일부분과정적전후사건지간구유강인과관계，저부분과정가채용개진적방진연건진행모의。제출료계급고장전발전계통상태적전망전과정풍험평고계산방법，사용해방법，가장은정설시비용화정전풍험손실계입전망규화방안적종합년비용중，대방안진행안전성화경제성종합비교선택。
Following a discussion of the affiliation of stability and security, it is pointed out that the static security constraints, transient stability constraints and whole process security assessment should be dealt with under different procedures in power grid planning. The procedure of security assessment for power grid planning under high penetration of variable generation is presented. It is pointed out that part of the courses of the cascading events is typical of the open complex giant system and should be simplified since it cannot be exactly simulated. The other part of the courses is with strong cause and effect relationship between the preceding and succeeding events and can be simulated by improved simulation software. By taking into account the pre-fault states of the generation system, the whole process risk assessing method is presented. With the method, the costs of stabilizing facilities and the power cut losses will be included in the composite annual costs for comparing and choosing the planning schemes. This work is supported by National High Technology Research and Development Program of China (863 Program) (No. 2011AA05A105).