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| Content Provider | IET Digital Library |
|---|---|
| Author | Bhattacharjee, Chayan Roy, Binoy Krishna |
| Abstract | This paper investigates on an additional active power compensation of a microgrid to a weak grid using fuzzy-supervisory control. This reduces the economic penalty of microgrid for going over-contract with the grid in terms of power demand. The objectives of this work are (a) to maximise grid support during periods of over-contract, (b) to minimise distortions and increase dynamic stability of dc link voltage and (c) to improve the total harmonic distortion (THD) of the dispatched power. The microgrid comprises of a wind energy conversion system (WECS) and Li-ion battery energy storage system (BESS). During variations in wind speed, power feed into the point of common coupling (PCC) depends upon deviations in the wind power, dc link voltage, violations in grid contract power and the state of charge (SOC) of the battery. The deviations in these inputs are utilised by the supervisory controller to compute additional power support to the grid, by discharging the battery. Performances of the fuzzy-supervisory controller are compared with a classical-supervisory controller with similar power dispatch parameters. Further, inverter currents are regulated using a fuzzy proportional-derivative and integral (FPD + I) controller to reduce distortions and improve dynamic response of the dispatched power. |
| Starting Page | 1455 |
| Ending Page | 1465 |
| Page Count | 11 |
| ISSN | 17518687 |
| Volume Number | 12 |
| e-ISSN | 17518695 |
| Issue Number | Issue 7, Apr (2018) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-gtd/12/7 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2017.0708 |
| Journal | IET Generation, Transmission & Distribution |
| Publisher Date | 2017-10-20 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Active Power Compensation Battery State-of-charge Battery Storage Plants Classical-supervisory Controller Contractual Grid Support Control of Electric Power System DC Microgrid DC-link Voltage Dispatched Power Distributed Power Generation Dynamic Response Dynamic Stability Economic Penalty Fuzzy Control Fuzzy Proportional-derivative Control Fuzzy-supervisory Control Grid Contract Harmonic Distortion Harmonics Hybrid System Integral Control Inverter Current Lithium-ion Battery Energy Storage System Microgrid System Other Power Stations And Plant Over-contract PD Control PI Control Power Dispatch Parameter Power Generation Control Power Generation Dispatch Power Generation Economics Power Quality Improvement Power Supply Quality Power System Dynamic Stability Power System Economics Power System Managemen Power System Operation Total Harmonic Distortion Weak Grid Wind Energy Conversion System Wind Power Plant Wind Speed |
| Content Type | Text |
| Resource Type | Article |
| Subject | Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering |
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