中国林业经济
中國林業經濟
중국임업경제
CHINA FORESTRY ECONOMY
2011年
6期
24-27
,共4页
项目融资%粒子群%内部收益率%非线性方程
項目融資%粒子群%內部收益率%非線性方程
항목융자%입자군%내부수익솔%비선성방정
project financing%PSO%internal rate of return%nonlinear equations
探讨了用粒子群算法求解项目融资内部收益率的思路。目前内部收益率求解手段有很多，内部收益率的公式是一个多元非线性方程，传统数值方法多使用目标函数的导数信息，具有较快的、与初值有关的局部收敛性。但是对一些强非线性方程和方程组，传统方法易导致失败，有效性低。而粒子群算法有高度的适应性、鲁棒性和并行性，是一种高效的智能算法。通过实际的风电项目为案例，实验仿真结果表明了算法的有效性。
探討瞭用粒子群算法求解項目融資內部收益率的思路。目前內部收益率求解手段有很多，內部收益率的公式是一箇多元非線性方程，傳統數值方法多使用目標函數的導數信息，具有較快的、與初值有關的跼部收斂性。但是對一些彊非線性方程和方程組，傳統方法易導緻失敗，有效性低。而粒子群算法有高度的適應性、魯棒性和併行性，是一種高效的智能算法。通過實際的風電項目為案例，實驗倣真結果錶明瞭算法的有效性。
탐토료용입자군산법구해항목융자내부수익솔적사로。목전내부수익솔구해수단유흔다，내부수익솔적공식시일개다원비선성방정，전통수치방법다사용목표함수적도수신식，구유교쾌적、여초치유관적국부수렴성。단시대일사강비선성방정화방정조，전통방법역도치실패，유효성저。이입자군산법유고도적괄응성、로봉성화병행성，시일충고효적지능산법。통과실제적풍전항목위안례，실험방진결과표명료산법적유효성。
This paper discusses the ideas of solving internal financing return rate by PSO-based project. Currently, there is a lot of means to solve the internal rate of return, the formula of the internal rate of return is a multi-linear equation, traditional numerical methods often use the derivative information of the objective function, with its local convergence faster and related with initial value. However, to some strong non-linear equations and equations, traditional methods easily lead to failure and often low effectiveness. The PSO has a high degree of adaptability, robustness and parallelism. It is a highly intelligent algorithm, the paper took actual wind power project as a case, and simulation results showed the effectiveness of the algorithm.
