A distributed active and reactive power control strategy for balancing grid-tied cascaded H-bridge PV inverter system

2017 ◽  
Author(s):  
Hamidreza Jafarian ◽  
Namwon Kim ◽  
Babak Parkhideh
Keyword(s):  
Power Control ◽  
Control Strategy ◽  
Reactive Power ◽  
Reactive Power Control ◽  
Pv Inverter ◽  
Active And Reactive Power

Decentralized Active and Reactive Power Control for an AC-Stacked PV Inverter With Single Member Phase Compensation

2018 ◽  
Vol 54 (1) ◽  
pp. 345-355 ◽  
Author(s):  
Hamidreza Jafarian ◽  
Robert Cox ◽  
Johan H. Enslin ◽  
Shibashis Bhowmik ◽  
Babak Parkhideh
Keyword(s):  
Power Control ◽  
Reactive Power ◽  
Phase Compensation ◽  
Reactive Power Control ◽  
Pv Inverter ◽  
Active And Reactive Power

scholarly journals MPC Based Coordinated Active and Reactive Power Control Strategy of DFIG Wind Farm with Distributed ESSs

Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3906
Author(s):  
Hesong Cui ◽  
Xueping Li ◽  
Gongping Wu ◽  
Yawei Song ◽  
Xiao Liu ◽  
...  
Keyword(s):  
Power Control ◽  
Control Strategy ◽  
Wind Farm ◽  
Reactive Power ◽  
Stable Operation ◽  
Reactive Power Control ◽  
Active And Reactive Power ◽  
Control Scheme ◽  
Optimal Control Scheme ◽  
Grid Side

The ESS is considered as an effective tool for enhancing the flexibility and controllability of a wind farm, and the optimal control scheme of a wind farm with distributed ESSs is vital to the stable operation of wind power generation. In this paper, a coordinated active and reactive power control strategy based on model predictive control (MPC) is proposed for doubly fed induction generator (DFIG)-based wind farm (WF) with distributed energy storage systems (ESSs). The proposed control scheme coordinates the active and reactive power output among DFIG wind turbines (WTs), grid-side converters (GSCs), and distributed ESSs inside the WF, and the aim is to decrease fatigue loads of WTs, make the WT terminal voltage inside the extent practicable, and take the WF economic operation into consideration. Moreover, the best reactive power references of DFIG stator and GSC are produced independently based on their dynamics. At last, the control scheme generates optimal power references for all ESS to make the SOC of each ESS converge to their average state. With the distributed ESSs, the WF controller regulates the WTs inside WF more flexibly. A WF composed of 10 DFIG WTs was utilized to verify the control performance of the proposed coordinated active and reactive power control strategy.

scholarly journals Independent Active and Reactive Power Control for Single Stage H8 Transformer-less Solar PV Inverter

2021 ◽  
Author(s):  
D.V.N Ananth ◽  
L.V. Sursh Kumar ◽  
D.A. Tatajee
Keyword(s):  
Power Control ◽  
Reactive Power ◽  
Rapid Development ◽  
Test System ◽  
Active Power ◽  
Single Stage ◽  
Solar Pv ◽  
Reactive Power Control ◽  
Pv Inverter ◽  
Active And Reactive Power

With the rapid development in power electronics technologies and solar photovoltaic (PV) cells, the interest in solar PV cell-based electric power generation and other applications is increasing more incredibly. For low power grid or direct load applications, single-stage solar PV inverters without transformers are advantageous. Based on this concept solar single-stage eight switch H8 based transformerless solar PV inverter is proposed. The objective of the work is to present a control scheme for the H8 inverter to have better power handling capability and for independent active and reactive power control. For this, the test system is studied using MATLAB/ SIMULINK software under three cases (i) constant active power and varying reactive power, (ii) varying active power and constant reactive power, and (iii) varying both active and reactive power. The proposed inverter is compared with single-stage solar PV with two switches boost and six switches inverter topology. It is found that power flow ripples and surges are lesser for proposed H8 than with single-stage topology.

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