CAJ | 학술논문

提出了基于分解协调和多目标趋优控制的智能电网调度控制系统应用新架构。利用分解协调策略，在各级电网实时数据和模型数据不逐级集中的条件下实现系统级分析计算(包括短路电流、潮流、小干扰、机电暂态、机电—电磁暂态混合仿真等)，实现各类应用的完全分布化，降低对分析计算程序和硬件的要求，同时提升各类分析计算收敛性和建模精细度。利用多目标趋优技术，实现大电网安全、经济、环保多目标自动趋优运行，提升电网调度控制系统的智能性。同时，提出了带潮流方程的状态估计方法，为各类在线应用提供在线电网模型；提出了具有最小/最大稳定裕度计算功能的在线安全分析方法，为多目标优化提供稳定裕度指标。
제출료기우분해협조화다목표추우공제적지능전망조도공제계통응용신가구。이용분해협조책략，재각급전망실시수거화모형수거불축급집중적조건하실현계통급분석계산(포괄단로전류、조류、소간우、궤전잠태、궤전—전자잠태혼합방진등)，실현각류응용적완전분포화，강저대분석계산정서화경건적요구，동시제승각류분석계산수렴성화건모정세도。이용다목표추우기술，실현대전망안전、경제、배보다목표자동추우운행，제승전망조도공제계통적지능성。동시，제출료대조류방정적상태고계방법，위각류재선응용제공재선전망모형；제출료구유최소/최대은정유도계산공능적재선안전분석방법，위다목표우화제공은정유도지표。
A novel application architecture of smart gird dispatching and control systems is proposed based on decompose-coordinate strategy and multi-index optimization approaching control.By decompose-coordinate strategy,the higher level control center can carry out system level calculation such as load flow,short circuit current analysis,small-signal disturbance analysis,electromechanical transient simulation,electromechanical and electromagnetic hybrid simulation etc,even if the higher level control center does not collect real-time data and model data of lower level control centers.Therefore,decompose-coordinate strategy can reduce performance requirements for hardware and calculation software,and improve the convergence of system level calculation and fineness of power system models.By multi-obj ective optimization,smart grid dispatching and control systems can be more intelligent and have better balanced security,efficiency and environment protection.Also,in order to provide on-line power systems model for on-line applications,a state estimating method with load flow equation constraints is proposed.To provide stability margin index for on-line applications,a dynamic security analyzing method capable of giving minimal/maximal stability margins is proposed.