Singular Value Sensitivity Based Optimal Control of Embedded VSC-HVDC for Steady-State Voltage Stability Enhancement

2016 ◽  
Vol 31 (1) ◽  
pp. 216-225 ◽  
Author(s):  
Omar A. Urquidez ◽  
Le Xie
Keyword(s):  
Optimal Control ◽  
Steady State ◽  
Voltage Stability ◽  
Singular Value ◽  
Voltage Stability Enhancement ◽  
Stability Enhancement

scholarly journals INFLUENCE OF TCSC FACTS DEVICE ON STEADY STATE VOLTAGE STABILITY

2013 ◽  
pp. 84-94
Author(s):  
GABER EL-SAADY ◽  
MOHAMED A. A. WAHAB ◽  
MOHAMED M. HAMADA ◽  
M. F. BASHEER
Keyword(s):  
Steady State ◽  
Power Flow ◽  
Voltage Stability ◽  
Control Function ◽  
Stability Index ◽  
Flexible Ac Transmission ◽  
Voltage Dependent ◽  
Voltage Stability Enhancement ◽  
Ac Transmission ◽  
Stability Enhancement

The influence of series Flexible AC Transmission Systems (FACTS) device namely, Thyristor-Controlled Series Capacitors (TCSC) on the steady state voltage stability is the main objective of this paper. The Line stability Index LSI under excepted lines outage contingencies is used to identify the critical line which is considered as the best location for TCSC. A modal analysis is used to define the weakest bus of the studied system. The FACTS device is implemented and included into the Newton-Raphson power flow algorithm, and the control function is formulated to achieve the voltage stability enhancement goal. The analysis is preformed on standard IEEE 30 bus system. The proposed scheme are tested under different loading conditions and different nonlinear voltage dependent loads. The simulation results demonstrate the feasibility and effectiveness of the device and the proposed algorithm.

Steady-State Voltage Stability Enhancement by Using Nonlinear Participation Factor

2012 ◽  
Vol 157-158 ◽  
pp. 1016-1020
Author(s):  
Jing Zhang ◽  
Ting Ting Jiang ◽  
Sheng Wei Mei
Keyword(s):  
Steady State ◽  
Power Systems ◽  
New England ◽  
Voltage Stability ◽  
Reactive Power ◽  
Nonlinear Factor ◽  
Voltage Stability Enhancement ◽  
Bus Voltage ◽  
Stability Enhancement ◽  
Power Systems Operation

Reactive power plays a key role in the power systems operation and stability. By using theory of normal forms of diffeomorphism, this paper proposes an index of bus voltage nonlinear factor, used to measure the effect of buses to the steady-state voltage stability. In order to verify the effectiveness of the proposed method, case studies are performed using the New England 39-bus power system. At the view of steady-state voltage stability enhancement, the results show that the bus voltage nonlinear factor is an effective index. It can give the correct indication of reactive power compensation dispatch.

Voltage stability enhancement using thermostatically controlled appliances as a comfort-constrained virtual generator

2015 ◽  
Vol 25 (12) ◽  
pp. 3509-3522 ◽  
Author(s):  
Dan Wang ◽  
Hongjie Jia ◽  
Chengshan Wang ◽  
Ning Lu ◽  
Menghua Fan ◽  
...  
Keyword(s):  
Voltage Stability ◽  
Voltage Stability Enhancement ◽  
Stability Enhancement
Sign in / Sign up

Export Citation Format

Share Document