By Mohamed EL-Shimy
This ebook is written for engineers serious about the operation, and regulate of electrical strength platforms. The booklet additionally offers details and instruments for researchers operating within the fields of energy method safeguard, balance, operation and regulate. It involves volumes. within the first quantity, the conventional recommendations for balance and dynamic equivalence are awarded. moreover, an summary of the most drivers and standards for modernization of the conventional tools for on-line purposes is mentioned. the second one quantity comprises advances within the safeguard, balance, keep an eye on, and stabilization of electric strength structures. The given fabric is written in graded complexity for facilitating their inclusion in undergraduate, postgraduate, and technical education classes. For on-line dynamic protection structures, an incredible a part of this quantity comprises the derivation, research, and stabilization of the SMIB equivalence of energy structures. This quantity additionally contains the operation and dynamical features of variable renewable strength iteration (wind and solar-PV) in addition to their dynamical interactions with strength platforms and the interconnection necessities are awarded in information.
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Additional info for Dynamic Security of Interconnected Electric Power Systems - Volume 2: Dynamics and stability of conventional and renewable energy systems
Example text
Bendary, and W. Ibrahim, “Damping of Power Systems Oscillations using FACTS Power Oscillation Damper – Design and Performance Analysis”, 16th International Middle East Power Systems Conference (MEPCON’14), Dec. 23-25, 2014, Cairo, Egypt, pp. 1- 8. 13 M. Mandour, M. EL-Shimy, F. M. Mansour. Impact of Wind Power on Power System Stability and Oscillation Damping Controller Design. Industry Academia Collaboration (IAC) Conference, 2015, Energy and sustainable development Track, Apr. 6 – 8, 2015, Cairo, Egypt 42 M.
LAP, 2015. Fig. 26: Impact of the grid-coupling strength on the linearized transient performance of the SMIB system – Classical model (xe are the shown numbers) Case #5: The given linearized model can be used for representing some other disturbances such as a sudden permanent disconnection of a line. Consider the SMIB system shown in Fig. 27 in which two lines connect the generator to the infinite bus. The generator normal frequency is 50-Hz generator and having an inertia constant M = 2H = 20 sec.
It is clear that three situations can be realized according to the values of the 1 and 2. (i) 1 > 0 and 2 > 0. In this case, as shown in eq. 50), the time domain (TD) response is a rising exponent with time constant = 1/ as shown in Fig. 35. This situation, of course, is corresponding to an unstable response. Fig. 35: Response with 1 > 0, 2 > 0 and = 0 (ii) 1 < 0 and 2 < 0. In this case, as shown in eq. (50), the time domain (TD) response is a falling exponent with time constant = -1/ as shown in Fig.