[Solved]-Adding new HighChart Series-Highcharts

you need to looka at the "methods and properties" part of the api. see http://api.highcharts.com/highcharts#chart (there is an jsfiddle on the documentation page as well).

var chart = new highcharts.chart(options);
chart.addseries({                        
    name: array.teamname,
    data: array.teampowher
});

if you are going to add several series you should set the redraw flag to false and then call redraw manually after as that will be much faster.

var chart = new highcharts.chart(options);
chart.addseries({                        
    name: array.teamname,
    data: array.teampower
}, false);
chart.addseries({                        
    name: array.teamname,
    data: array.teampower
}, false);
chart.redraw();