天津大学学报
天津大學學報
천진대학학보
JOURNAL OF TIANJIN UNIVERSITY SCIENCE AND TECHNOLOGY
2013年
8期
713-718
,共6页
最小断点集%粒子群算法%电气介数%保护重要性差异%保护重要性评估
最小斷點集%粒子群算法%電氣介數%保護重要性差異%保護重要性評估
최소단점집%입자군산법%전기개수%보호중요성차이%보호중요성평고
minimum break point set%PSO%electric betweeness%importance differences of relays%assessment of the importance for relays
针对复杂环网整定过程中，处于同一环路中的保护容易出现相互等待、不能继续整定的“死锁”情况，提出了一种基于粒子群算法(PSO)的最小断点集 MBPS 求取方案。该方案考虑了保护间的重要性差异，研究了一种基于电气介数的保护重要性评估方法；为了降低 MBPS 对保护整定的影响，设计了新的目标函数并基于 PSO 实现，以保证MBPS基数最小而且重要性最低，为求取全局最优或接近最优的MBPS提供了一种新思路。算例仿真结果表明，新方法能有效地克服同基多组MBPS问题。
針對複雜環網整定過程中，處于同一環路中的保護容易齣現相互等待、不能繼續整定的“死鎖”情況，提齣瞭一種基于粒子群算法(PSO)的最小斷點集 MBPS 求取方案。該方案攷慮瞭保護間的重要性差異，研究瞭一種基于電氣介數的保護重要性評估方法；為瞭降低 MBPS 對保護整定的影響，設計瞭新的目標函數併基于 PSO 實現，以保證MBPS基數最小而且重要性最低，為求取全跼最優或接近最優的MBPS提供瞭一種新思路。算例倣真結果錶明，新方法能有效地剋服同基多組MBPS問題。
침대복잡배망정정과정중，처우동일배로중적보호용역출현상호등대、불능계속정정적“사쇄”정황，제출료일충기우입자군산법(PSO)적최소단점집 MBPS 구취방안。해방안고필료보호간적중요성차이，연구료일충기우전기개수적보호중요성평고방법；위료강저 MBPS 대보호정정적영향，설계료신적목표함수병기우 PSO 실현，이보증MBPS기수최소이차중요성최저，위구취전국최우혹접근최우적MBPS제공료일충신사로。산례방진결과표명，신방법능유효지극복동기다조MBPS문제。
In the relay setting progress of complex ring networks,the deadclock phenomenon is easy to occur, which leads to the difficulty in determining where relay should start. To deal with this problem,a method for deter-mining the minimum break point set,or MBPS,was proposed based on PSO. And then to assess the importance difference of relays,the concept of electric betweeness was introduced. At last,the minimum bad effect of the MBPS was ensured,which requires not only the minimum base of the MBPS but also the lowest importance. Thus the global or sub-global optimal MBPS could be obtained,for which a new objective function was designed. Overall,simulation results show that this new method can solve the existing multi-MPBS problem well.
