yes it is quite possible but for closed loop system pole must be removed.

All the best

The converter which i am using is having a RHP pole in its control to output voltage transfer function. But simulation results are proper i.e. good output voltage in steady state with variable duty ratios. If it is having RHP pole, Can it give the same result in experimental analysis like in simulation? Effect of RHP pole is the main issue.

We may need a control guy to explain this clearly. In the same time I can share my opinion on this.

It is important to figure out the frequency of the RHP. pole The physic meaning of this is: if you give a excitation (like a step change), the system will be inclined to oscillate at the RHP's pole frequency. 

Another thing to note is the open loop transfer function is different from close loop one.

Your simulation works well may indicate three things: a. you did not give any disturbance(such as step change of output current) during simulation. b. the close loop TF does not have RHP poles. c. the RHP zero cancelled the RHP poles

Hi,

Yes, it is possible to have RHP pole even if the system input-output signals are bounded. It usually happens in cascade system where RHP pole a system is get canceled by RHP zero at the same location from another system. This phenomenon is known as loss of internal stability. If the system is internal stable then all of the states (not only output) are bounded. But, as pole is canceled by zero, show ideally it should not reflect in system model also.

In case of PE lets say DC-DC converter (sply open-loop) it is nearly impossible to have unbounded states (capacitor voltage or inductor current) for its passive in nature.

First check order of the model is same as number of energy storing element or not

if it is not, then there is pole-zero cancellation. If it is same, in modeling some where you missed something.