CAJ | 학술논문

提出了一种能够反映配电网结构合理程度的可靠性指标---网络风险指数，并建立了以配电网投资费用、网络损耗和网络风险指数为目标函数，综合考虑经济性和可靠性的配电网规划模型。设计了一种基于节点关联矩阵的网络修复算法，能够对随机生成的网络中的孤岛、孤链和闭环进行检测和修复，使网络满足配电网辐射状要求。对强度帕累托进化算法进行了改进，给出了新的适应度函数，以提高算法的搜索速度和搜索能力，并利用逼近理想解排序法(TOPSIS)对帕累托前沿中的个体进行排序，筛选出最优方案。最后，对一个54节点配电网进行规划，结果表明网络风险指数与配电网的停电损失具有极强的线性相关性，其可以作为表征配电网可靠性的指标；与传统强度帕累托进化算法相比，所提改进算法具有较强的搜索能力和较快的搜索速度。
제출료일충능구반영배전망결구합리정도적가고성지표---망락풍험지수，병건립료이배전망투자비용、망락손모화망락풍험지수위목표함수，종합고필경제성화가고성적배전망규화모형。설계료일충기우절점관련구진적망락수복산법，능구대수궤생성적망락중적고도、고련화폐배진행검측화수복，사망락만족배전망복사상요구。대강도파루탁진화산법진행료개진，급출료신적괄응도함수，이제고산법적수색속도화수색능력，병이용핍근이상해배서법(TOPSIS)대파루탁전연중적개체진행배서，사선출최우방안。최후，대일개54절점배전망진행규화，결과표명망락풍험지수여배전망적정전손실구유겁강적선성상관성，기가이작위표정배전망가고성적지표；여전통강도파루탁진화산법상비，소제개진산법구유교강적수색능력화교쾌적수색속도。
A reliability indicator called the network risk index capable of reflecting the rationality of the distribution network structure is proposed.By taking the investment cost,network loss and network risk index as the objective functions,a distribution network planning model is developed with an overall consideration of the economy and reliability of the distribution network.A network repair algorithm based on bus incidence matrix is designed to find and repair the randomly generated isolated busses,isolated chains and closed loops for the requirement of grid radiation.New fitness functions are proposed to improve the search speed and capability of the strength Pareto evolutionary algorithm (SPEA).To sort the individuals in the Pareto frontier,the technique for order preference by similarity to an ideal solution(TOPSIS)is used and the optimal solution is screened out.Finally,the model is used in a 54-bus network planning.The result shows that there is a strong linear correlation between the network risk index and the outage loss,thus the network risk index can be used as an indicator of distribution network reliability.Compared with the traditional SPEA,the improved algorithm has a better search ability and a faster search speed.