Back to Search
Start Over
Design of type-1 servo controller for grid voltage modulated direct-power control of single-phase grid-connected PV inverter
- Source :
- International Journal of Electrical and Computer Engineering (IJECE). 11:1912
- Publication Year :
- 2021
- Publisher :
- Institute of Advanced Engineering and Science, 2021.
-
Abstract
- This paper presents direct control of active and reactive power using grid voltage modulation for single-phase grid-connected photovoltaic inverter. A design of type-1 servo system based on pole-placement method is proposed to control the power flow using a simplified multiple-input multiple-output (MIMO) model of the system. Phase-locked loop (PLL) with a quarter cycle time delay is used to estimate the grid phase angle for the purpose of performing the stationary and synchronous reference frame transformation. Unipolar pulse width modulation (PWM) technique is used to control a single-phase inverter with 2.7 KVA capacity connected to the photovoltaic system. The proposed controller can simply be tuned using minimum number of controller gains to achieve the transient and steady-state performance requirements. The proposed system, was capable of operating for a wide range of solar irradiance levels with a power factor in the range of 0.95 (leading/lagging), for the reactive power compensation purposes.
- Subjects :
- Renewable energy
General Computer Science
business.industry
Computer science
Photovoltaic system
Servo control
Grid-connected
Direct power control
Single-phase inverter
Power factor
AC power
Servomechanism
Solar irradiance
law.invention
Decoupled control
Phase-locked loop
Control theory
law
Inverter
Electrical and Electronic Engineering
business
Pulse-width modulation
Power control
Subjects
Details
- ISSN :
- 27222578 and 20888708
- Volume :
- 11
- Database :
- OpenAIRE
- Journal :
- International Journal of Electrical and Computer Engineering (IJECE)
- Accession number :
- edsair.doi.dedup.....bfd271a73b5d438812f0d8cd00d86905