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VAr planning using genetic algorithm and linear programming
(2001-05-01)
A combined methodology consisting of successive linear programming (SLP) and a simple genetic algorithm (SGA) solves the reactive planning problem. The problem is divided into operating and planning subproblems; the operating ...
Penalty-based nonlinear solver for optimal reactive power dispatch with discrete controls
(2013-04-15)
The optimal reactive dispatch problem is a nonlinear programming problem containing continuous and discrete control variables. Owing to the difficulty caused by discrete variables, this problem is usually solved assuming ...
Integrated Local and Coordinated Overvoltage Control to Increase Energy Feed-In and Expand DER Participation in Low-Voltage Networks
(2022-01-01)
Large amounts of active power injection by inverter-interfaced distributed energy resources (DER) is a common cause of overvoltage in low-voltage networks. Hence, local active and reactive power control (i.e., Volt/Watt ...
Optimal Multiobjective Control of Low-Voltage AC Microgrids: Power Flow Regulation and Compensation of Reactive Power and Unbalance
(Ieee-inst Electrical Electronics Engineers Inc, 2020-03-01)
The presence of single-phase distributed generators unevenly injecting active power in three-phase microgrids may create undesired upstream current unbalance. Consequently, voltage asymmetry and even active power curtailment ...
Reactive Power Limits in Distributed Generators from Generic Capability Curves
(2014-07-27)
This paper presents a generic trapezoid-type capability curve for any distributed generation technology. This curve is used to estimate the machine reactive power limits in terms of the actual active power and terminal ...
Grid-tie three-phase inverter with active power injection and reactive power compensation
(2016-11-05)
This paper proposes a methodology for the active and reactive power flow control, applied to a grid-tie three-phase power inverter, considering local and/or regionalized power flow control necessity in the forthcoming ...
Analysis of the precision of a second-order conic model to solve the optimal power dispatch problem in electric power systems
(Springer, 2021-07-27)
This paper presents in-depth comparative analyses of nonlinear nonconvex programming (NLNCP) and secondorder conic programming (SOCP) models to solve the optimal power flow problem in electric power systems. For comparative ...
Integrated Volt/var Control In Modern Distribution Power Systems Based On Support Vector Machines
(Wiley-BlackwellHoboken, 2016)
Power Flow Maximization in Permanent-Magnet Generators
(Institute of Electrical and Electronics Engineers, 2014-02)
The main hypothesis proposed in this paper is that by controlling the harmonic and zero-sequence components of the current in nonsinusoidal permanent-magnet synchronous generators (PMGs), additional energy can be obtained, ...
Reactive Control for Transmission Overload Relief Based on Sensitivity Analysis and Cooperative Game Theory
(Institute of Electrical and Electronics Engineers (IEEE), 2012-08-01)
Under overload conditions, corrective actions must be carried out in a short time in order to avoid blackouts. However, the control of system facilities in the new market environment has changed the standard overload relief ...