Mitigating subsynchronous resonance and damping power system oscillation in a series compensated wind park using a novel static synchronous series compensator control algorithm

Wind Energy ◽  
2011 ◽  
Vol 15 (3) ◽  
pp. 363-377 ◽  
Author(s):  
Mohamed S. El-Moursi
Keyword(s):  
Power System ◽  
Control Algorithm ◽  
Subsynchronous Resonance ◽  
Wind Park ◽  
Static Synchronous Series Compensator

Damping Subsynchronous Resonance Using a Static Synchronous Series Compensator Based Supplementary Damping Controller

2019 ◽  
Vol 42 ◽  
pp. 122-138
Author(s):  
Mahlomola Masenkane ◽  
Rudiren Pillay Carpanen
Keyword(s):  
Power System ◽  
Computer Aided Design ◽  
Turbine Generator ◽  
Torsional Oscillations ◽  
Subsynchronous Resonance ◽  
Detailed Simulation ◽  
Single Machine Infinite Bus ◽  
Aided Design ◽  
Static Synchronous Series Compensator ◽  
Damping Controller

This paper investigates the effectiveness of a supplementary damping controller around a Static Synchronous Series Compensator (SSSC) in mitigating the torsional oscillations due to interaction of series compensated transmission line with the nearby turbine-generator shafts. The main objective of the controller is to suppress the unstable torsional oscillations with frequencies coinciding with the turbine-generator shaft torsional modes, through modulation of the reactance provided by the SSSC. Detailed simulation studies are done in Power System Computer Aided Design (PSCAD) using a single machine infinite bus (SMIB) power system adopted from the IEEE first benchmark model (FBM) for subsynchronous resonance analysis. The results show that this supplementary damping controller can provide positive damping to the unstable torsional oscillations due to presence of conventional series capacitors in the line or an SSSC or a combination of both the SSSC and conventional series capacitor banks.

scholarly journals A influência do modo de operação do SSSC na estabilidade de ângulo de sistemas elétricos de potência

2007 ◽  
Vol 18 (3) ◽  
pp. 347-360
Author(s):  
Marcelo S. Castro ◽  
Hugo M. Ayres ◽  
Igor Kopcak ◽  
Vivaldo F. da Costa ◽  
Luiz Carlos P. da Silva
Keyword(s):  
Power System ◽  
System Analysis ◽  
Power System Analysis ◽  
Static Synchronous Series Compensator

Afim de realizar específicos objetivos de compensação, um SSSC (Static Synchronous Series Compensator) pode ser controlado de diferentes formas. Os modos de controle do SSSC mais discutidos na literatura são 1) modo de tensão constante, 2) modo de reatância constante, e 3) modo de potência constante. Enquanto os dois primeiros modos acima citados são usados para realizar apenas compensação série de potência reativa, o modo de potência constante também permite que o fluxo de potência na rede de transmissão seja controlado. Uma vez que esses modos podem causar diferentes impactos na estabilidade angular do sistema, o objetivo desse trabalho é investigar a influência do modo de operação do SSSC na estabilidade de ângulo a pequenas perturbações e na estabilidade transitória de sistemas de potência. O estudo é baseado na técnica de análise modal bem como em simulações no domínio do tempo, as quais são realizadas usando o PSAT (Power System Analysis Toolbox). Os resultados obtidos mostram que, quando realizando apenas compensação série de potência reativa, o uso do SSSC no modo de reatância constante é a melhor estratégia para melhorar a estabilidade de ângulo a pequenas perturbações bem como a estabilidade transitória.

scholarly journals Multi-machine transient stability by using static synchronous series compensator

2020 ◽  
Vol 11 (3) ◽  
pp. 1249
Author(s):  
Nur Ashida Salim ◽  
Nur Diyana Shahirah Mohd Zain ◽  
Hasmaini Mohamad ◽  
Zuhaila Mat Yasin ◽  
Nur Fadilah Ab Aziz
Keyword(s):  
Power System ◽  
Transient Stability ◽  
Single Phase ◽  
Power Transmission ◽  
System Stability ◽  
Phase System ◽  
Proportional Integral ◽  
Before And After ◽  
In Series ◽  
Static Synchronous Series Compensator

<span lang="EN-US">Transient stability in power system is vital to be addressed due to large disturbances that could damage the system such as load changes and voltage increases. This paper presents a multi-machine transient stability using the Static Synchronous Series Compensator (SSSC). SSSC is a device that is connected in series with the power transmission line and produces controllable voltage which contribute to a better performance in the power system stability. As a result, this research has observed a comparison of the synchronization of a three-phase system during single-phase faults before and after installing the SSSC device. In addition, this research investigates the ability of three different types of controllers i.e. Proportional Integral (PI), Proportional Integral Derivation (PID), and Generic controllers to be added to the SSSC improve the transient stability as it cannot operate by itself. This is because the improvement is too small and not able to achieve the desired output. The task presented is to improve the synchronization of the system and time taken for the voltage to stabilize due to the fault. The simulation result shows that the SSSC with an additional controller can improve the stability of a multi-machine power system in a single phase fault.</span>

Optimal Operational Strategy for PV/Wind-Diesel Hybrid Power Generation System with Energy Storage

2017 ◽  
pp. 1438-1460 ◽  
Author(s):  
Vincent Anayochukwu Ani
Keyword(s):  
Power Generation ◽  
Renewable Energy ◽  
Power System ◽  
Control Algorithm ◽  
Energy System ◽  
Diesel Generator ◽  
Generation System ◽  
Hybrid Power System ◽  
Hybrid Power ◽  
Power Generation System

Telecommunications industry requires efficient, reliable and cost-effective hybrid power system as alternative to the power supplied by diesel generator. This paper proposed an operational control algorithm that will be used to control and supervise the operations of PV/Wind-Diesel hybrid power generation system for GSM base station sites. The control algorithm was developed in such a way that it coordinates when power should be generated by renewable energy (PV panels and Wind turbine) and when it should be generated by diesel generator and is intended to maximize the use of renewable system while limiting the use of diesel generator. Diesel generator is allocated only when the demand cannot be met by the renewable energy sources including battery bank. The developed algorithm was used to study the operations of the hybrid PV/Wind-Diesel energy system. The control simulation shows that the developed algorithm reduces the operational hours of the diesel generator thereby reducing the running cost of the hybrid energy system as well as the pollutant emissions. With the data collected from the site, a detailed economic and environmental analysis was carried out using micro power optimization software homer. The study evaluates savings associated with conversion of the diesel powered system to a PV/Wind-Diesel hybrid power system.

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