The only times the Queen has ever dissolved parliament is because of requests by the Prime Minister and MPS when the sitting party feels confident in winning an early election, or the five year term has come to an end.<quoted text>
You never win.
" The power to dissolve Parliament
A dissolution of Parliament is the device that triggers a General Election. Only the Queen can dissolve Parliament and she has the power so to act at any time, for any reason, or for none."
She is a ceremonial ornament. That you refuse to believe this is frankly astounding.