Back to Search
Start Over
Load Disturbance Compensation for Stand-alone Inverters Using an Inductor Current Observer
- Source :
- Journal of Power Electronics. 17:389-397
- Publication Year :
- 2017
- Publisher :
- The Korean Institute of Power Electronics, 2017.
-
Abstract
- A control scheme for stand-alone inverters that utilizes an inductor current observer (ICO) is proposed. The proposed method measures disturbance load currents using a current sensor and it estimates the inductor current using the ICO. The filter parameter mismatch effect is analyzed to confirm the ICO’s controllability. The ICO and controllers are designed in a continuous-time domain and transferred to a discrete-time domain with a digital delay. Experimental results demonstrate the effectiveness of the ICO using a 5-kVA single-phase stand-alone inverter prototype. The experimental results demonstrate that the observed current matches the actual current and that the proposed method can archive a less than 2.4% total harmonic distortion (THD) sinusoidal output waveform under nonlinear load conditions.
- Subjects :
- Total harmonic distortion
Engineering
Observer (quantum physics)
business.industry
020208 electrical & electronic engineering
020302 automobile design & engineering
02 engineering and technology
Inductor
Controllability
0203 mechanical engineering
Control and Systems Engineering
Control theory
Delay
0202 electrical engineering, electronic engineering, information engineering
Electronic engineering
Inverter
Waveform
Current sensor
Electrical and Electronic Engineering
business
Subjects
Details
- ISSN :
- 15982092
- Volume :
- 17
- Database :
- OpenAIRE
- Journal :
- Journal of Power Electronics
- Accession number :
- edsair.doi...........90b502fc769a3a3846658d02736cfaa0