### Abstract

Language | English |
---|---|

Title of host publication | Proceedings of the 35th EU PVSEC 2018 |

Chapter | 6 |

Pages | 1870-1875 |

Number of pages | 6 |

DOIs | |

Publication status | Published - 7 Nov 2018 |

### Fingerprint

### Keywords

- Droop Control
- Inverter
- Communal Grid

### Cite this

*Proceedings of the 35th EU PVSEC 2018*(pp. 1870-1875) https://doi.org/10.4229/35thEUPVSEC20182018-6BV.1.68

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*Proceedings of the 35th EU PVSEC 2018.*pp. 1870-1875. https://doi.org/10.4229/35thEUPVSEC20182018-6BV.1.68

**Modelling Control Methods for PV-Based Communal Grids with Different Line Resistances and Impedances.** / Opiyo, Nicholas.

Research output: Chapter in Book/Report/Conference proceeding › Chapter

TY - CHAP

T1 - Modelling Control Methods for PV-Based Communal Grids with Different Line Resistances and Impedances

AU - Opiyo, Nicholas

PY - 2018/11/7

Y1 - 2018/11/7

N2 - Different droop control methods for PV-based communal grid networks (minigrids and microgrids) with different line resistances (R) and impedances (X) are modelled and simulated in MATLAB to determine the most efficient control method for a given network. Results show that active power-frequency (P-f) droop control method is the most efficient for low voltage transmission networks with low X/R ratios while reactive power-voltage (Q-V) droop control method is the most efficient for systems with high X/R ratios. For systems with complex line resistances and impedances, i.e. near unity X/R ratios, P-f or Q-V droop methods cannot individually efficiently regulate line voltage and frequency. For such systems, P-Q-f droop control method, where both active and reactive power could be used to control PCC voltage via shunt-connected inverters, is determined to be the most efficient control method. Results also show that shunt-connection of inverters leads to improved power flow control of interconnected communal grids by allowing feeder voltage regulation, load reactive power support, reactive power management between feeders, and improved overall system performance against dynamic disturbances

AB - Different droop control methods for PV-based communal grid networks (minigrids and microgrids) with different line resistances (R) and impedances (X) are modelled and simulated in MATLAB to determine the most efficient control method for a given network. Results show that active power-frequency (P-f) droop control method is the most efficient for low voltage transmission networks with low X/R ratios while reactive power-voltage (Q-V) droop control method is the most efficient for systems with high X/R ratios. For systems with complex line resistances and impedances, i.e. near unity X/R ratios, P-f or Q-V droop methods cannot individually efficiently regulate line voltage and frequency. For such systems, P-Q-f droop control method, where both active and reactive power could be used to control PCC voltage via shunt-connected inverters, is determined to be the most efficient control method. Results also show that shunt-connection of inverters leads to improved power flow control of interconnected communal grids by allowing feeder voltage regulation, load reactive power support, reactive power management between feeders, and improved overall system performance against dynamic disturbances

KW - Droop Control

KW - Inverter

KW - Communal Grid

U2 - 10.4229/35thEUPVSEC20182018-6BV.1.68

DO - 10.4229/35thEUPVSEC20182018-6BV.1.68

M3 - Chapter

SN - 3-936338-50-7

SP - 1870

EP - 1875

BT - Proceedings of the 35th EU PVSEC 2018

ER -