Dead zone and control zone setting for voltage and reactive power control in substations

1973 ◽  
Vol 93 (4) ◽  
pp. 108-115
Author(s):  
M. Ito ◽  
Y. Nagano
Keyword(s):  
Power Control ◽  
Reactive Power ◽  
Dead Zone ◽  
Reactive Power Control ◽  
Control Zone ◽  
And Control

scholarly journals ASYNCHRONOUS ELECTRIC DRIVE WITH REACTIVE POWER CONTROL

2021 ◽  
Vol 2021 (5) ◽  
pp. 49-54
Author(s):  
R.A. Chepkunov ◽  
◽  
◽  
Keyword(s):  
Power Control ◽  
Induction Motor ◽  
Electric Drive ◽  
Reactive Power ◽  
Reactive Power Control ◽  
Magnetic Flow ◽  
Asynchronous Electric Drive ◽  
And Control

The method of control of asynchronous electric drive, which based on measuring and control of reactive power of induction motor, is presented. It provides independence of magnetic flow of rotor from changes of induction motor parameters, uninterrupted diapason of regulation of speed including zero and fast regulation.

scholarly journals Enhanced Direct Reactive Power Control-Based Multi-Level Inverter for DFIG Wind System under Variable Speeds

2021 ◽  
Vol 13 (16) ◽  
pp. 9060
Author(s):  
Salah Tamalouzt ◽  
Youcef Belkhier ◽  
Younes Sahri ◽  
Mohit Bajaj ◽  
Nasim Ullah ◽  
...  
Keyword(s):  
Power Control ◽  
Wind Power ◽  
Reactive Power ◽  
Reactive Power Control ◽  
Wind Speeds ◽  
Doubly Fed ◽  
Grid Side ◽  
And Control ◽  
Reactive Power Compensator ◽  
Inverter Topology

A novel direct reactive power control strategy based on the three-level inverter topology (DRPC-3N) is proposed for a doubly fed induction generator (DFIG)-based wind power plant system. The robustness against parametric variations and control performances of the presented methodology are analyzed under random wind speeds, taking into account the effect of the heating of the windings as well as the saturation of the magnetic circuit. The performance indices include obtaining a sinusoidal AC-generated current with low THD and less ripples in the output. Moreover, the generator can be considered as a reactive power compensator, which allows for the controlling of the active and reactive power of the stator side connected directly to the grid side using only the rotor converter. In this study, unpredictable conduct of the wind velocity that forces the DFIG to operate through all modes of operation in a continual and successive way is considered. The received wind power is utilized to extract the optimum power by using an appropriate MPPT algorithm, and the pitch angle control is activated during the overspeed to restrict the produced active power. The simulation tests are performed under Matlab/Simulink and the presented results show the robustness and effectiveness of the new DRPC strategy with the proposed topology, which means that the performances are more sophisticated.

scholarly journals A Fuzzy Controlled LCC HVDC System with AC Voltage and Reactive Power Control

2021 ◽  
Vol 309 ◽  
pp. 01190
Author(s):  
More Anusha ◽  
Dola Gobinda Padhan ◽  
D. Karuna Kumar
Keyword(s):  
Power Control ◽  
Reactive Power ◽  
Fluid Management ◽  
Voltage Control ◽  
Reactive Power Control ◽  
Hvdc System ◽  
Main Work ◽  
Voltage Management ◽  
And Control ◽  
Reaction Speed

The main work focus is on the LCC HVDC reactive power control system with fluid regulated AC voltage. The reactive power and the voltage control capacity of LCC HVDC were examined and demonstrated with controlled condensers. Reactive power control and voltage management have been suggested and associated controllers with variable condensers have been developed on the reverse side of the fuzzy controlled LCC HVDC system. The active corrective side power control is required and a reactive or voltage control has been taken into account in this work. This study looks at the inverter side of the system LCC HVDC with customizable capacitors, reactive power and fluid management of the AC voltage. The usual AC voltage control and PI controller for reactive power is replaced by an injected controller that enhances reaction speed and control. In the MATLAB software with Sim-Power system toolbox, graphs are created using a GUI environment to model the proposed fuzzy-controlled HVDC system.

Operation of Voltage Reactive Power Control Devices based on Cooperation between Two-Voltage Class Transmission Network with PV Systems to Reduce Power Loss

2020 ◽  
Vol 140 (6) ◽  
pp. 484-494
Author(s):  
Akihisa Kaneko ◽  
Shinya Yoshizawa ◽  
Yasuhiro Hayashi ◽  
Shuhei Sugimura ◽  
Yoshinobu Ueda ◽  
...  
Keyword(s):  
Power Control ◽  
Power Loss ◽  
Reactive Power ◽  
Transmission Network ◽  
Reactive Power Control ◽  
Pv Systems ◽  
Control Devices
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