Figures (9)  Tables (2)
    • Figure 1. 

      Overall constructed solar energy production from 2008 to 2018[14].

    • Figure 2. 

      Overall system design[76].

    • Figure 3. 

      Three phase voltage source inverter.

    • Figure 4. 

      Design of the optimal controller.

    • Figure 5. 

      Design of bidirectional DC-DC converter.

    • Figure 6. 

      The overall system of solar energy for the grid-connected systems based on optimal controller.

    • Figure 7. 

      Simulation of PV system analysis based on irradiance affect.

    • Figure 8. 

      The output ANFIS controller based on MPPT.

    • Figure 9. 

      Overall simulation for optimal controller of solar energy with grid-connected systems.

    • Ref. NOP, CRF CC DLC FL CP F MT A
      [60] 3-PH DP, PI DB M-L C, V LCL DPWM G
      [61] 3-PH Active recative control PI, PR M-L V, P L PWM G
      [62] 3-PH MPC S-L V, C L PWM PV
      [63] 3-PH MPC S-L C LCL PWM G
      [64] 3-PH Fuzzy PI M-L V, C L SVPWM PV
      [65] 1-PH Fractional order PR M-L C, P L SPWM PV
      [66] 3-PH Fractional order PI Fractional order PR M-L V, C LCL PWM PV
      [67] 3-PH PI PI M-L V, C LCL PWM PV
      [68] 3-PH PR PI M-L V, C LCL PWM PV
      [69] 1-PH FuzzySMC S-L V L PWM PV
      [70] 3-PH PI PI M-L V, C L SVPWM PV
      [71] 1-PH PI, MPC PI, MPC M-L V, C L PWM PV
      [72] 3-PH PI, Vector control PI M-L V, C L PWM PV
      [73] 3-PH Fractional order SMC S-L C L PWM PV
      [74] 3-PH MPC S-L C LCL PWM G
      [75] 1-PH Fractional order RC S-L C LCL PWM G
      NOP: Number of Phases, CRF: Control Reference Frames, CC: Current Controller, DLC: DC-Link Controller, FL: Feedback Loop, CP: Control Parameters, F: Filter, MT: Modulation Technique, A: Application, M-L: Multiple loop, S-L: Single loop, V: Voltage, C: Current, P: Power, and G: General.

      Table 1. 

      Key features of various controllers suggested in scholarly works.

    • Details Value
      Grid line voltage (V L-L) 415 V
      Grid phase voltage (Vph) 240 V
      DC source voltage (Vdc) 250 V
      Output power fed to grid (Pn) 1,000 W
      Grid Frequency (f) 50 Hz
      Switching frequency (fs) 20 KHz

      Table 2. 

      Design parameters.