Results 221 to 230 of about 248,414 (264)

Reactive Power Control in Wind Power Plants

2017
Studies in this chapter have been performed on the interaction between wind farm, reactive power compensation, and the power system network. The fluctuation of the loads and the output of wind turbine units in power system have made the reactive power compensation an effective procedure.
Reza Effatnejad, Mahdi Akhlaghi, Hamed Aliyari, Hamed Modir Zareh, Mohammad Effatnejad   +4 more
openaire   +1 more source

Optimal reactive power control for industrial power networks

Conference Record of 1998 IEEE Industry Applications Conference. Thirty-Third IAS Annual Meeting (Cat. No.98CH36242), 1999
In addition to process steam and real power demands, manufacturing processes also have a varying reactive power demand that must be satisfied. Reactive power affects line currents and bus voltages, as well as power factor of the tie-line bringing power into the industrial plant from the local utility. The local utility applies a penalty if the tie-line
R.E. Putman, F.C. Huff, J.K. Pal
openaire   +1 more source

Reactivity and Power Shape Control

Nuclear Science and Engineering, 1977
An 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 ...
openaire   +1 more source

OPTIMAL CONTROL OF VOLTAGE AND REACTIVE POWER OF POWER SYSTEM

IFAC Proceedings Volumes, 1987
Abstract 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, Yu Songhai, Huang Mingsheng, Gao Xiangxian   +3 more
openaire   +1 more source

Reinforcement Learning for Reactive Power Control

IEEE Transactions on Power Systems, 2004
This 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
openaire   +1 more source

Reactive power control by genetic algorithm

2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077), 2002
This 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
openaire   +1 more source

Microprocessing control of reactive power compensator

Euromicro Newsletter, 1979
Abstract 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, Ezz El-Din Zakzouk   +1 more
openaire   +1 more source

Reactive Power Control Strategies for DFIG-Based Plants

IEEE Transactions on Energy Conversion, 2007
This paper explores and compares the performance of alternative voltage control strategies applied to doubly fed induction generator (DFIG). Different combinations of reactive power control of rotor- and grid-side converters are investigated for voltage-control purposes. Simulations are performed using detailed models built in DIgSILENT PowerFactory in
Kayikçi, Mustafa, Milanović, Jovica V.
openaire   +1 more source

Reactive Power Balance and Voltage Control

1997
Economic 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
openaire   +1 more source

Power flow control with controllable reactive series elements

IEE Proceedings - Generation, Transmission and Distribution, 1998
The 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.
openaire   +1 more source