2.1.2. Convertible Loads

Convertible loads mean that within a dispatch period, power demand can be transferred to any time, but the total amount of electricity used within one day remains unchanged. Typical convertible loads include energy storage and electric vehicle charging stations. Its mathematical model can be expressed as follows:

$$
\Delta P\_{\text{convert}}(t) = f\_2(P\_0(t), \Delta p\_{\text{convert}\prime} k\_{\text{convvert}}(t), v\_{\text{convvert}}(t)) \tag{3}
$$

where <sup>Δ</sup>*P*convert(*t*) is the response of the transferable load during the *t* period; *<sup>P</sup>*0(*t*) is the base load of the *t* period; <sup>Δ</sup>*p*convert(*t*) is the electric-difference vector between this period and other time periods; and <sup>Δ</sup>*k*convert(*t*) is the mutual elastic vector of the *t* period relative to other periods. The load transfer rate T is the duty cycle of the load.
