Solar power generation dispatch research

Why is generation dispatch a challenge to power system operations?

ant challenge to power system operations due to its intermittent, volatile, and uncertain characteristics. Generation dispatch (a generalization of economic dispatch) is widely used to deal with uncertainties by altering the real-time output

Why do solar power plants need to be dispatchable?

It is found that increasing the dispatchability of solar power plants will necessarily lead to the emergence of additional energy losses and important LCOE increase, either because of low round-trip efficiency of the storage system, or because of its high cost of energy capacity.

Should a solar power plant switch from intermittent to dispatchable?

Shifting from intermittent to dispatchable solar electricity production induces additional constraints on the plant operation, which should satisfy a predefined electrical load rather than intermittently injecting solar electricity in the grid.

What is power system dispatch?

Power system dispatch encompasses tasks including optimal power flow (OPF), economic dispatch and optimal unit commitment (Fig. 2), with OPF being conducted for every 5 min, economic dispatch ranging from 1 to 4 h ahead and unit commitment typically being carried out 24 h in advance. Fig. 2: The dispatch problem.

How do you calculate the dispatch efficiency of a solar plant?

The dispatch efficiency can be written: (Equation 4) η d p (P L, S) = E (P L, S) ∑ i = 1 8760 P L (t) · Δ t s t e p where P L (t) refers to the electrical load imposed to the solar plant. High values of the dispatch efficiency are requested to guarantee a satisfaction of the load throughout the year.

Why do we consider generation from Battery & CSP power cycle systems dispatchable?

We consider generation from the battery or CSP power cycle systems to be dispatchable, because they can be scheduled according to time-of-delivery prices, and fix the net output of these systems to 100 MW. Power provided by the PV field is not dispatchable, because it cannot be scheduled, and so is not limited except by the grid connection.