Where is project level component xml file located?

In my plugin I've created a project level component.

@State(name = "MyPluginConfiguration",
        storages = [Storage(value = "myPluginConfiguration.xml")])
class MyPluginComponent(project: Project) : AbstractProjectComponent(project), PersistentStateComponent<State> {
    // ...
}

Where is myPluginConfiguration.xml file actually located in the project? I cannot find it