Advanced power electronic converters can provide the means to control power flow and ensure proper and secure operation of the future power grid. The small electrical energy sources dispersed in electrical power systems referred to as distributed generation are one of the most significant parts of future grids - Smart Grids. The threephase, direct matrix converter is an alternative solution to the conventional AC-DC-AC converter for interfacing two AC systems in distributed power generation with different voltage and/or frequency parameters. This paper presents a control analysis of a threephase matrix converter employed as a power interface of future electrical grids. The proposed system has been successfully tested for bidirectional power flow operation with different grid operating conditions, such as, frequency and voltage variation
 Liserre M., Sauter T., Hung J.Y., Future energy systems: integrating renewable energy sources into the smart power grid through industrial electronics. IEEE Ind. Electron. Magazine 4(1): 18-37, (2010).
 Benysek G., Strzelecki R., Modern power-electronics installations in the Polish electrical power network, Renewable and Sustainable Energy Reviews 15: 236-251 (2011).
 Chakraborty S., Kramer B., Kroposki B., A review of power electronics interfaces for distributed energy systems towards achieving low-cost modular design, Renewable and Sustainable Energy Reviews 13: 2323-2335, (2009).
 Blaabjerg F., Chen Z., Kjaer S.B., Power electronics as efficient interface in dispersed power generation systems, IEEE Trans. Power Electron. 19(5): 1184-1194 (2004).
 Nikkhajoei H., Tabesh A., Iravani R., Dynamic model of a matrix converter for controller design and system studies. IEEE Trans. Power Delivery 21(2): 744-754 (2006).
 Fedyczak Z., Szcześniak P., Matrix-reactance frequency converters using an low frequency transfer matrix modulation method. Elec. Power Syst. Res. 1: 91-103 (2012).
 Szcześniak P., A static and dynamic model of a space vector modulated matrix-reactance frequency converter, Elec. Power Syst. Res. 108: 82-92 (2014).
 Baroudi J.A., Dinavahi V., Knight A.M., A review of power converter topologies for wind generators, Renewable Energy 32: 2369-2385 (2007).
 Savaghebi M., Dehghani M.T., Hooshyar H. and Jalilian A., Enhancement of microturbine-generator output voltage quality through application of matrix converter interface, Proc. SPEEDAM 2010, Italy, Pisa: 1823-1826 (2010).
 Monteiro J., Silva J.F., Pinto S.F., Palma J., Matrix converter-based unified power-flow controllers: advanced direct power control method. IEEE Trans. Power Delivery 26(1): 420-430 (2011).
 Wang B., Venkataramanan G., Dynamic voltage restorer utilizing a matrix converter and flywheel energy storage. IEEE Trans. Ind. Appl. 45(1): 222-231 (2009).
 Blaabjerg F., Teodorescu R., Liserre M., Timbus A.V., Overview of control and grid synchronization for distributed power generation systems. IEEE Trans. Ind. Electron. 53(5) 1398-1409 (2006).
 Malinowski M., Kaźmierkowski M.P., Trzynadlowski A.M., A comparative study of control techniques for PWM rectifiers in AC adjustable speed drives. IEEE Transactions on Power Electronics 18(6): 1390-1396 (2003).
 Dengke G., Jianguo J., Shutong Q., Comparing the use of two kinds of droop control under microgrid islanded operation mode. Archives of Electrical Engineering 62(2): 321-331 (2013).
 Rodriguez J., Rivera M., Kolar J.W., Wheeler P.W., A review of control and modulation methods for matrix converters. IEEE Trans. Ind. Electron. 59(1): 58-70 (2012).
 Yao Sun, Mei Su, Xing Li, Hui Wang, Weihua Gui, A General Constructive Approach to Matrix Converter Stabilization. IEEE Trans. Power Electron. 28(1): 418-431 (2013).
 Anirban G., Vinod J., Anti-windup schemes for proportional integral and proportional resonant controller. Proc National Power Electronics Conference, Roorkee: 1-6, (2010).
 Wilamowski B.M., Irwin D.J., Power Electronics and Motor Drives. The Industrial Electronics Handbook, CRC Press (2011).