Parallel Operation of Inverters With Droop Control of Voltage and Frequency
In distributed generation numerous small generating stations are connected to micro grid by using interfacing inverter. While connecting a various inverters in micro grid, load sharing amongst them in very important factor. This paper presents a novel approach for interfacing parallel inverter, the technique used in this paper is based on P-F/Q-V droop control. This technique is very helpful when micro grid is operating in island mode. The droop control is designed in a such a way that it helps in maintaining the voltage and frequency stability. In this paper method of droop control is implemented and characteristics of proportional load sharing are obtained from each connected inverter. The two inverters operation is shown in this paper. The two inverter scheme with droop control is implemented in MATLAB and results obtained shows significant sharing of load while maintaining the constant voltage and frequency.
Conference on Control, Instrumentation, Energy & Communication (CIEC)
 H.Farhangi, "The path of the smart grid", IEEE Power Energy Mag., vol 8, no.1, pp.18-28, Jan/Feb.2010.
 M.Chandorkar, D.Divan, and R.Adapa, "Control of parallel connected inverters in standalone AC supply systems", IEEE Tranactions on Industry Applications, vol. 29, no.1, pp.136-143, Jan/Feb 1993.
 R.Lasseter, "Microgrids", in Power Engineering Society Winter Meeting. 2002. IEEE, vol.1, 2002, pp.305-308.
 Y.B.Byn, T.G.Koo, K.Y.Joe, E.S.Kim, J.I.Seo, and D.H.Kim, "Parallel operation of three phase UPS inverters by wirless load sharing control", in Proc.22nd, Int. Telecommun. Energy conf., 2000, pp.526-532.
 T.F.Wu, Y.K.Chen ,and Y.H.Huang, "3C strategy for inverters in parallel operation achieving and equal current distribution", IEEE Trans.Ind.Electron.,vol.47,no.2,pp.273281,Apr.2000.
 Y.Pei, G.Jiang, X.Yang and Z.Wang, "Auto master slave control technique of parallel inverters in distributed ac power systems and UPS", in Pro. IEEE Power Electron. Spec. Conf., 2004, pp.2050-2053.
 J.M.Guerrero, L.G.DeVicuna, J.Matas, M.Castilla, and J.Miret, "A wirless controller to enhance dynamic performance of parallel inverters in distributed generations systems", IEEE Trans. on Power Electronics, vol.19, pp.1205-1213, 2004.
To ensure uniformity of treatment among all contributors, other forms may not be substituted for this form, nor may any wording of the form be changed. This form is intended for original material submitted to AJCT and must accompany any such material in order to be published by AJCT. Please read the form carefully.
The undersigned hereby assigns to the Asian Journal of Convergence in Technology Issues ("AJCT") all rights under copyright that may exist in and to the above Work, any revised or expanded derivative works submitted to AJCT by the undersigned based on the Work, and any associated written, audio and/or visual presentations or other enhancements accompanying the Work. The undersigned hereby warrants that the Work is original and that he/she is the author of the Work; to the extent the Work incorporates text passages, figures, data or other material from the works of others, the undersigned has obtained any necessary permission. See Retained Rights, below.
AJCT distributes its technical publications throughout the world and wants to ensure that the material submitted to its publications is properly available to the readership of those publications. Authors must ensure that The Work is their own and is original. It is the responsibility of the authors, not AJCT, to determine whether disclosure of their material requires the prior consent of other parties and, if so, to obtain it.
RETAINED RIGHTS/TERMS AND CONDITIONS
1. Authors/employers retain all proprietary rights in any process, procedure, or article of manufacture described in the Work.
2. Authors/employers may reproduce or authorize others to reproduce The Work and for the author's personal use or for company or organizational use, provided that the source and any AJCT copyright notice are indicated, the copies are not used in any way that implies AJCT endorsement of a product or service of any employer, and the copies themselves are not offered for sale.
3. Authors/employers may make limited distribution of all or portions of the Work prior to publication if they inform AJCT in advance of the nature and extent of such limited distribution.
4. For all uses not covered by items 2 and 3, authors/employers must request permission from AJCT.
5. Although authors are permitted to re-use all or portions of the Work in other works, this does not include granting third-party requests for reprinting, republishing, or other types of re-use.
INFORMATION FOR AUTHORS
AJCT Copyright Ownership
It is the formal policy of AJCT to own the copyrights to all copyrightable material in its technical publications and to the individual contributions contained therein, in order to protect the interests of AJCT, its authors and their employers, and, at the same time, to facilitate the appropriate re-use of this material by others.
If you are employed and prepared the Work on a subject within the scope of your employment, the copyright in the Work belongs to your employer as a work-for-hire. In that case, AJCT assumes that when you sign this Form, you are authorized to do so by your employer and that your employer has consented to the transfer of copyright, to the representation and warranty of publication rights, and to all other terms and conditions of this Form. If such authorization and consent has not been given to you, an authorized representative of your employer should sign this Form as the Author.
AJCT requires that the consent of the first-named author and employer be sought as a condition to granting reprint or republication rights to others or for permitting use of a Work for promotion or marketing purposes.
1. The undersigned represents that he/she has the power and authority to make and execute this assignment.
2. The undersigned agrees to indemnify and hold harmless AJCT from any damage or expense that may arise in the event of a breach of any of the warranties set forth above.
3. In the event the above work is accepted and published by AJCT and consequently withdrawn by the author(s), the foregoing copyright transfer shall become null and void and all materials embodying the Work submitted to AJCT will be destroyed.
4. For jointly authored Works, all joint authors should sign, or one of the authors should sign as authorized agent
for the others.
Licenced by :