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Reactivity and Power Shape Control
Nuclear Science and Engineering, 1977An optimization method, based on linear programming, has been developed that determines the enrichment distribution in a multizone reactor such that the desired power distribution is achieved at beginning-of-life conditions, as well as the poison distribution during reactor operation such that the reactor is kept critical and the desired power ...
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OPTIMAL CONTROL OF VOLTAGE AND REACTIVE POWER OF POWER SYSTEM
IFAC Proceedings Volumes, 1987Abstract In this paper, from the view point of economy and security of a power system, a synthetic mathematical model is presented for minimizing system losses and improving voltage level. At the same time, it is taken into account that when the reactive power is insufficient or it is hard to operate the system normally, the system will be supplied ...
Lang Jiaqi +3 more
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Reinforcement Learning for Reactive Power Control
IEEE Transactions on Power Systems, 2004This paper presents a Reinforcement Learning (RL) method for network constrained setting of control variables. The RL method formulates the constrained load flow problem as a multistage decision problem. More specifically, the model-free learning algorithm (Q-learning) learns by experience how to adjust a closed-loop control rule mapping states (load ...
J.G. Vlachogiannis, N.D. Hatziargyriou
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Reactive power control by genetic algorithm
2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077), 2002This paper presents a new approach to optimal voltage and reactive power control based on a genetic algorithm (GA), and attempts to shorten the time by use of the GA which calculates the control procedure. For this purpose, a network is decomposed into subsystems by means of region/area information, and the control times of the controller are ...
H. Aoki, Y. Mizutani
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Microprocessing control of reactive power compensator
Euromicro Newsletter, 1979Abstract This paper presents a method of reactive power compensation, using a microprocessor controlled thyrister switching of capacitor banks. The microprocessor provides the necessary timing of the switching process to avoid harmful supply transients and permits levels of compensation in each cycle.
El-Hosseiny Tahe El-Shirbeeny +1 more
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Reactive Power Balance and Voltage Control
1997Economic considerations have generally resulted in short-term generation unit commitment practices and trading procedures placing considerable emphasis on scheduling active power to meet system demands. Voltage control is usually managed as a second step in the operation of the power system.
E. Mariani, S. S. Murthy
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Power flow control with controllable reactive series elements
IEE Proceedings - Generation, Transmission and Distribution, 1998The basic features of controllable reactive series elements (CRSE) (i.e. controllable series compensation (CSC) and a static synchronous series compensator (SSSC)) for system power flow control are presented. Mathematical models of CRSE, including a simplified transmission system model, have been developed.
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Reactive Power Control of Wind Plants
2014The intention of this chapter is to describe a reactive power control structure for wind turbines and wind plants that provides the necessary capability to ensure a stable system voltage in the medium and high voltage grid even if no synchronous generation is present any more.
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Reactive power generation and control by thyristor circuits
1976 IEEE Power Electronics Specialists Conference, 1976Generally, static var generators function as variable reactances (capacitive or inductive impedances) or controllable ac current and voltage sources. Possible methods of var generation and control by static thyristor circuits are reviewed, and new approaches are described in which power frequency changers (cycloconverters) are employed.
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