Dead-Beat Control Cooperating with State Observer for Single-Phase Electric Springs
Abstract
:1. Introduction
2. Operating Principle of Single-Phase ESs
2.1. The Topology of Single-Phase ES
2.2. δ Control of Single-Phase ES
2.3. Issues in the δ Control with PR and P Controllers
3. Dead-Beat Control for Single-Phase ESs
3.1. System Modeling of Single-Phase ES
3.2. Dead-Beat Control for Single-Phase ES
3.3. Dead-Beat Control Cooperating with State Observer for Single-Phase ES
4. Simulation and Discussions
4.1. Flowchart of Dead-Beat Control for δ Control
- Execute vi(k − 1) to the VSI within single-phase ES
- Measure grid voltage vG and PCC voltage vC
- Predict grid current i(k), inductor current iL(k), and capacitor grid vES(k)
- Calculate the reference of CL voltage based on the detected instantaneous phase and RMS value of grid voltage, and also based on circuit parameters
- Calculate the modulation signal vi(k)
4.2. Pure Reactive Power Compensation Mode
4.3. PFC Mode
4.4. Sensitivity Analysis of Circuit Parameters
4.5. Discussions
5. Conclusions
Author Contributions
Funding
Conflicts of Interest
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Parameters | Values | Units |
---|---|---|
Regulated SL voltage (VS) | 110 | V |
ES DC bus voltage (Vdc) | 200 | V |
Line resistance (R1) | 1.64 | Ω |
Line inductance (L1) | 30.4 | mH |
CL (R2) | 1603.4 | Ω |
NCL (R3) | 51.05 | Ω |
ES inductance (L) | 2.3 | mH |
ES capacitance (C) | 26.11 | μF |
Switching frequency (fs) | 10 | kHz |
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Wang, Q.; Zuo, W.; Cheng, M.; Deng, F.; Buja, G. Dead-Beat Control Cooperating with State Observer for Single-Phase Electric Springs. Appl. Sci. 2018, 8, 2335. https://doi.org/10.3390/app8122335
Wang Q, Zuo W, Cheng M, Deng F, Buja G. Dead-Beat Control Cooperating with State Observer for Single-Phase Electric Springs. Applied Sciences. 2018; 8(12):2335. https://doi.org/10.3390/app8122335
Chicago/Turabian StyleWang, Qingsong, Wujian Zuo, Ming Cheng, Fujin Deng, and Giuseppe Buja. 2018. "Dead-Beat Control Cooperating with State Observer for Single-Phase Electric Springs" Applied Sciences 8, no. 12: 2335. https://doi.org/10.3390/app8122335