基于图论的故障演化路径MATLAB代码
时间: 2024-03-10 07:43:28 浏览: 92
以下是一个基于图论的故障演化路径的Matlab程序示例:
```matlab
function fault_paths = fault_evolution_paths(adj_matrix, fault_sources, fault_targets)
% adj_matrix: 邻接矩阵,表示系统中各组件之间的连接关系
% fault_sources: 故障源
% fault_targets: 故障目标
% 构造故障图
fault_matrix = construct_fault_matrix(adj_matrix, fault_sources, fault_targets);
% 使用Dijkstra算法计算最短路径
shortest_paths = dijkstra(fault_matrix, 1);
% 获取所有故障演化路径
fault_paths = get_fault_evolution_paths(fault_matrix, shortest_paths, fault_sources, fault_targets);
end
function fault_matrix = construct_fault_matrix(adj_matrix, fault_sources, fault_targets)
% adj_matrix: 邻接矩阵,表示系统中各组件之间的连接关系
% fault_sources: 故障源
% fault_targets: 故障目标
% 将故障源和故障目标之间的连接关系设置为1
fault_matrix = adj_matrix;
for i = 1:length(fault_sources)
for j = 1:length(fault_targets)
fault_matrix(fault_sources(i), fault_targets(j)) = 1;
fault_matrix(fault_targets(j), fault_sources(i)) = 1;
end
end
end
function paths = get_fault_evolution_paths(fault_matrix, shortest_paths, fault_sources, fault_targets)
% fault_matrix: 故障图,表示系统中各组件之间的连接关系和故障源/目标之间的连接关系
% shortest_paths: 最短路径
% fault_sources: 故障源
% fault_targets: 故障目标
% 获取系统中所有组件
components = 1:size(fault_matrix, 1);
% 获取所有故障源到故障目标的路径
paths = {};
for i = 1:length(fault_sources)
for j = 1:length(fault_targets)
path = shortest_paths{fault_sources(i), fault_targets(j)};
if ~isempty(path)
paths{end+1} = path;
end
end
end
% 获取所有故障源到故障目标的演化路径
for i = 1:length(paths)
path = paths{i};
for j = 2:length(path)-1
% 获取当前路径中的子路径
subpath = path(1:j);
% 判断子路径是否为故障演化路径
if is_fault_evolution_path(subpath, components, fault_matrix, fault_sources, fault_targets)
% 如果是,则将该路径加入故障演化路径集合
paths{end+1} = subpath;
end
end
end
% 去重
paths = unique_paths(paths);
end
function is_evolution_path = is_fault_evolution_path(path, components, fault_matrix, fault_sources, fault_targets)
% path: 路径
% components: 所有组件
% fault_matrix: 故障图,表示系统中各组件之间的连接关系和故障源/目标之间的连接关系
% fault_sources: 故障源
% fault_targets: 故障目标
% 判断当前路径是否为故障演化路径
is_evolution_path = true;
for i = 1:length(components)
if ~ismember(components(i), path)
% 如果当前组件不在路径中,则判断是否存在故障源/目标到该组件的路径
has_path = false;
for j = 1:length(fault_sources)
for k = 1:length(fault_targets)
if fault_matrix(fault_sources(j), components(i)) == 1 && fault_matrix(components(i), fault_targets(k)) == 1
has_path = true;
break;
end
end
if has_path
break;
end
end
% 如果不存在故障源/目标到该组件的路径,则该路径不是故障演化路径
if ~has_path
is_evolution_path = false;
break;
end
end
end
end
function unique_paths = unique_paths(paths)
% paths: 路径集合
% 去重
unique_paths = {};
for i = 1:length(paths)
path = paths{i};
if ~ismember(path, unique_paths)
unique_paths{end+1} = path;
end
end
end
```
该程序首先构造故障图,将故障源和故障目标之间的连接关系设置为1。然后使用Dijkstra算法计算最短路径,并获取所有故障源到故障目标的路径。接着,对于每个路径,判断该路径是否为故障演化路径。如果是,则将该路径加入故障演化路径集合中。最后返回故障演化路径集合。
需要注意的是,该程序中使用了之前提到的Dijkstra算法的函数,因此需要将该函数也包含在程序中。
阅读全文