An Adaptive Load Voltage Support Control Strategy for Inverter-based Renewable Energy Conversion System

Document Type: Research paper

Authors

1 Department of Electrical Engineering, Islamic Azad University, East Tehran Branch, Tehran, Iran.

2 Faculty of Engineering and Technology, University of Mazandaran (UMZ), Babolsar, Iran .

Abstract

In this paper, an adaptive control strategy is proposed for the inverters of renewable energy source (RES) to simultaneously control the load voltage, grid current and the amount of instantaneous injected power to the grid in the presence of grid voltage distortions and nonlinearity of load current. In the proposed control strategy, the power quality of the local load can be settled based on the operator command. In order to implement the proposed control strategy, a cascaded framework of power, voltage and current control has been introduced. An efficient and fast response controller is introduced for the voltage loop, aiming to compensate of harmonics without any complex calculations. The proposed cascade framework is simulated with nonlinear load and non-ideal grid conditions. The simulation results show the effectiveness of the proposed control strategy to not only supply the local load on an appropriate voltage and current quality but also maintaining the amount of injected power at the operator’s desired level.

Keywords

Main Subjects


[1]    R. Esmaeilzadeh, A. Ajami, and M. R. Banaei, “Two-Stage Inverter Based on Combination of High Gain DC-DC Converter and Five-Level Inverter for PV-Battery Energy Conversion,” J. Oper. Autom. Power Eng., vol. 6, no. 1, pp. 101–110, 2018.

[2]    M. A. Hassas and K. Pourhossein, “Control and Management of Hybrid Renewable Energy Systems : Review and Comparison of Methods,” J. Oper. Autom. Power Eng., vol. 5, no. 2, pp. 131–138, 2017.

[3]    M. Abbasi and B. Tousi, “A Novel Controller Based on Single-Phase Instantaneous p-q Power Theory for a Cascaded PWM Transformerless STATCOM for Voltage Regulation,” J. Oper. Autom. Power Eng., vol. 6, no. 1, pp. 80–88, 2018.

[4]    H. Moayedirad and M. A. S. Nejad, “Increasing the Efficiency of the Power Electronic Converter for a Proposed Dual Stator Winding Squirrel-Cage Induction Motor Drive Using a Five-Leg Inverter at Low Speeds,” J. Oper. Autom. Power Eng., vol. 6, no. 1, pp. 23–39, 2018.

[5]    R. Ghanizadeh, M. Ebadian, and G. B. Gharehpetian, “Control of Inverter-Interfaced Distributed Generation Units for Voltage and Current Harmonics Compensation in Grid- Connected Microgrids,” J. Oper. Autom. Power Eng., vol. 4, no. 1, pp. 66–82, 2016.

[6]    Allal M. Bouzid, Josep M. Guerrero, Ahmed Cheriti, Mohamed Bouhamida, Pierre Sicard, Mustapha Benghanem, A survey on control of electric power distributed generation systems for microgrid applications, Renew. Sustain. Energy Rev., vol. 44, 2015, pp. 751-766, 2015.

[7]    IEEE Draft “Standard for Interconnection and Interoperability of Distributed Energy Resources with Associated Electric Power Systems Interfaces," IEEE P1547/D7.0, September 2017 , pp.1-147, 2017.

[8]    “IEEE Recommended Practices and Requirements for Harmonic Control in Electrical Power Systems,” IEEE Std 519-1992 , pp.1-112, April 9 1993

[9]    J. Rocabert, A. Luna, F. Blaabjerg, and P. Rodríguez, “Control of power converters in AC microgrids,” IEEE Trans. Power Electron., vol. 27, no. 11, pp. 4734–4749, 2012.

[10]  M. Heidari and M. Monfared, “A New Control Method for Single-Phase Grid-Connected Inverter Using Instantaneous Power Theory,” J. Oper. Autom. Power Eng., vol. 5, no. 2, pp. 105–116, 2017.

[11]  M. Shahparasti, P. Catalán, J. I. Candela, A. Luna and P. Rodríguez, “Advanced control of a high power converter connected to a weak grid,” IEEE Energy Convers. Congress Exposition (ECCE), Milwaukee, WI, 2016, pp. 1-7.

[12]  Q. Zhong and T. Hornik, “Cascaded Current – Voltage Control to Improve the Power Quality for a Grid-Connected Inverter With a Local Load,” IEEE Trans. Ind. Electron., vol. 60, no. 4, pp. 1344–1355, 2013.

[13]  M. Cirrincione, M. Pucci, and G. Vitale, “A single-phase DG generation unit with shunt active power filter capability by adaptive neural filtering,” IEEE Trans. Ind. Electron., vol. 55, no. 5, pp. 2093–2110, 2008.

[14]  T. V. Tran, T.-W. Chun, “PLL-Based Seamless Transfer Control Between Grid-Connected and Islanding Modes in Grid-Connected Inverters,” IEEE Trans. Power Electron., vol. 29, pp. 5218-5228, 2013.

[15]  M. Arafat and S. Palle, “Transition control strategy between standalone and grid-connected operations of voltage-source inverters,” IEEE Trans. Power Electron., vol. 48, no. 5, pp. 1516–1525, 2012.

[16]  D. S. Ochs and B. Mirafzal, “A Method of Seamless Transitions Between Grid- Tied and Stand-Alone Modes of Operation for Utility-Interactive Three-Phase Inverters,” IEEE Trans. Power Electron., vol. 50, pp. 1934-1941, 2013.

[17]  U. B. Tayab, M. A. B. Roslan, L. J. Hwai, M. Kashif, “A review of droop control techniques for microgrid,” Renew. Sustain. Energy Rev., vol. 76, pp. 717-727, 2017.

[18]  S. M. Azimi, S. Afsharnia, “Multi-purpose droop controllers incorporating a passivity-based stabilizer for unified control of electronically interfaced distributed generators including primary source dynamics,” ISA Trans., vol. 63, pp. 140-153, 2016.

[19]  A. Urtasun, P. Sanchis, L. Marroyo, “State-of-charge-based droop control for stand-alone AC supply systems with distributed energy storage,” Energy Convers. Manage., vol. 106, pp. 709-720, 2015

[20]  M. A. Ghasemi, M. Parniani, “Prevention of distribution network overvoltage by adaptive droop-based active and reactive power control of PV systems,” Electr. Power Syst. Res., vol. 133, pp. 313-327, 2016.

[21]  V. Mortezapour, H.Lesani, “Hybrid AC/DC microgrids: A generalized approach for autonomous droop-based primary control in islanded operations,” Int. J. Electr. Power Energy Syst., vol. 93, pp. 109-118, 2017.

[22]  J. Kwon, S. Yoon, and S. Choi, “Indirect current control for seamless transfer of three-phase utility interactive inverters,” IEEE Trans. Power Electron., vol. 27, no. 2, pp. 773-781, 2012.

[23]  J. He, Y. W. Li, and M. S. Munir, “A flexible harmonic control approach through voltage-controlled DG-grid interfacing converters,” IEEE Trans. Ind. Electron., vol. 59, no. 1, pp. 444–455, 2012.

[24]  [24] H. Zhang; S. Kim; Q. Sun; J. Zhou, “Distributed Adaptive Virtual Impedance Control for Accurate Reactive Power Sharing Based on Consensus Control in Microgrids,” IEEE Trans. Smart Grid., vol. 8, pp.1749-1761, 2017.

[25]  M. A. Abusara, M. Josep, “Improved droop control strategy for grid-connected inverters,” Sustain. Energy, Grids Networks, vol. 1, pp. 10-19, 2015.

[26]  Ka. Ogata, “Modern Control Engineering,” Prentice Hall, 2010.

[27]  D. N. Zmood and D. G. Holmes, “Stationary frame current regulation of PWM inverters with zero steady-state error,” IEEE Trans. Power Electron., vol. 18, no. 3, pp. 814–822, 2003.

[28]  C. Zou, B. Liu, S. Duan, and R. Li, “Stationary Frame Equivalent Model of Proportional-Integral Controller in dq Synchronous Frame,” IEEE Trans. Power Electron., vol. 29, no. 9, pp. 4461–4465, 2014.

[29]  M. Shahparasti, M. Mohamadian, A. Yazdian, A. Ale Ahmad and M. Amini “Derivation of a Stationary-Frame  Single  Loop  Controller  for  Three  Phase  Standalone  Inverter  Supplying Nonlinear Loads,” IEEE Trans. Power Electron., vol. 29, no. 9, pp. 5063- 5071, 2014.

[30]  K. H. Ahmed, A. M. Massoud, S. J. Finney, and B. W. Williams, “Sensorless Current Control of Three-Phase Inverter-Based Distributed Generation,” IEEE Trans. Power Del., vol. 24, no. 2, pp. 919–929, 2009.