Impact of model detail of synchronous machines on real-time transient stability assessment
In this paper, it is investigated how detailed the model of a synchronous machine needs to
be in order to assess transient stability using a Single Machine Equivalent (SIME). The …
be in order to assess transient stability using a Single Machine Equivalent (SIME). The …
When to island for blackout prevention
Cascading outages leading to large-area blackouts can be mitigated using intentional
controlled islanding (ICI). An ICI scheme must define the most suitable time to split the …
controlled islanding (ICI). An ICI scheme must define the most suitable time to split the …
Wide-area assessment of aperiodic small signal rotor angle stability in real-time
H Jóhannsson, AH Nielsen… - IEEE Transactions on …, 2013 - ieeexplore.ieee.org
This paper presents the details of a new real-time stability assessment method. The method
assesses a particular mechanism of stability: each generator's capability to generate …
assesses a particular mechanism of stability: each generator's capability to generate …
[HTML][HTML] Aperiodic small signal stability method for detection and mitigation of cascading failures in smart grids
The occurrence of cascading failures poses significant risks to the stability and reliability of
modern smart grids. This article presents a novel hybrid algorithm designed to assess and …
modern smart grids. This article presents a novel hybrid algorithm designed to assess and …
Coordination of system needs and provision of services
H Hansen, LH Hansen, H Jóhannsson… - 2013 - IET
This paper addresses a challenge associated with large scale deployment of distributed
energy resources (DER) to provide system services in future sustainable power systems; …
energy resources (DER) to provide system services in future sustainable power systems; …
Real-time thevenin impedance computation
Stable and secure operation of power systems becomes increasingly difficult when a large
share of the power production is based on distributed and non-controllable renewable …
share of the power production is based on distributed and non-controllable renewable …
Identification of critical transmission limits in injection impedance plane
In this paper, equations are derived that describe the map** of critical boundaries and
characteristic curves from the three dimensional PQV-surface into the two-dimensional …
characteristic curves from the three dimensional PQV-surface into the two-dimensional …
Investigation of the adaptability of transient stability assessment methods to real-time operation
In this paper, an investigation of the adaptability of available transient stability assessment
methods to real-time operation and their real-time performance is carried out. Two …
methods to real-time operation and their real-time performance is carried out. Two …
Early prevention method for power system instability
E Dmitrova, ML Wittrock, H Jóhannsson… - IEEE Transactions on …, 2014 - ieeexplore.ieee.org
This paper presents a method to determine suitable countermeasures against emerging
aperiodic small disturbance rotor angle (ASD) instability. The method utilizes stability …
aperiodic small disturbance rotor angle (ASD) instability. The method utilizes stability …
Assessment of the impact that individual voltage source has on a generator's stability
E Dmitrova, H Jóhannsson… - 2012 10th International …, 2012 - ieeexplore.ieee.org
This paper presents an approach for splitting equivalent Thevenin voltage into components
induced by each voltage source in the reduced grid. Thevenin equivalent representation of …
induced by each voltage source in the reduced grid. Thevenin equivalent representation of …