OpenCL Device Architectures

Current-Sensorless Control Strategy for the MPPT of a PV Cell: An Energy-Based Approach

“…We simulate here the behaviour of the terms C 1A and C 1B from the control function βðv pv Þ, the transfer and power functions of the PV cell, and the response of the PV cell output power at different solar irradiance and output impedance levels. The simulation integrates the control action of our IDA-PBC and the SMC strategies over the pH system (50). Then, a behavioural multi-physics numerical model is developed, fed with the key parameters of Table 1 from Sec-tion 6.…”

“…We have formulated in Section 2.3 a specific type of SMC strategy for our PV cell plus the DC-DC boost converter system for the MPPT problem according to [8,12]. Now, we introduce our novel IDA-PBC design to the interconnected system (49), and the Hamiltonian function (50). Our IDA-PBC strategy is inspired by the work of [10,35,36], whose main design steps are recapitulated in Section 2.2.…”

“…where gðx, βðxÞÞ = gðxÞi s , with i s being the input of the system (50). Furthermore, R a ðxÞ is assumed as : ð53Þ…”

“…where ðq * pv , ϕ * pv , q * bc , ϕ * bc Þ represent the equilibrium state of the system in (50). Thus, by equalizing (57) and (54) at the equilibrium state, it follows that…”

“…Proposition 3. Main result given a PV cell connected to a DC-DC boost converter represented in the pH system (50), with a duty cycle for the switch S bc that lies between two modes, such that 0 ≤ S bc ≤ 1, as in [8], then the MPPT control objective is obtained via a scalar function βðxÞ in (56) which solves the PDE in (11). Inspired by [12,47], the proposed control signal is given by…”