Voltage stability assessment accounting for current-limited converters

Karatas, Bahtiyar Can; Sarkar, Moumita; Jóhannsson, Hjörtur; Nielsen, Arne Hejde; Sørensen, Poul Ejnar

doi:10.1016/j.epsr.2020.106772

Cited by 4 publications

(1 citation statement)

References 18 publications

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“…To solve the problem in such a statement, a method of dynamic programming [30] is used, which makes it possible to choose the most likely (quasi-optimal), for a certain region of operation mode, GU configuration in compliance with all restrictions. To perform the dynamic programming algorithm [31], equivalent characteristics ( ),…”

Section: Materials and Methods For Synthesizing Basic Algorithms For The Higher Levels Of Saeps Controlmentioning

confidence: 99%

Solving a task of coordinated control over a ship automated electric power system under a changing load

Budashko

Shevchenko

2021

EEJET

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This paper reports the synthesis of the main processes for the basic control over a complex technical vessel system. The issue related to the semantics of the description and the method for decomposing management tasks has been proposed to resolve in the context of the synthesis of the program to coordinate control over vessel technical systems and complexes with a sophisticated structure. An example of a five-unit ship’s automated electric power system (SAEPS) for the predefined level of generated power, taking into consideration the efficiency criteria, was used to synthesize the algorithms that execute transitions from one level to another while taking into account the pre-emergency and emergency states of SAEPS. The organization of the sequential process of enabling/disabling generator units (GUs) implies developing a program for managing the coordinator's supervisor as part of a distributed two-level hierarchical structure of SAEPS control when the load changes. The sequence of operations to launch, synchronize, transfer the loading, and stop GU is based on the formation of GU optimal composition, the distribution of loads among GUs running in parallel, and the implementation of the program for optimizing the primary engine of the power plant. The reported principles for constructing GU composition control procedures based on the principle of "rigid and flexible" thresholds have made it possible to build a diagram of adjustment of the time delay in enabling GU dependent on the demanded power. It has been proven that the proposed technique improves the reliability of SAEPS operation as it eliminates possible emergency modes when false control combinations are assigned. Databases on the quantity of GUs, their technical condition, loading, fuel consumption, and environmental parameters have been built. The synthesis of control over a five-unit SAEPS has made it possible to determine the algorithmization procedure based on using an extended data array and simplify the functioning algorithm involved in the operations of choosing the structure for a five-unit SAEPS

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Section: Materials and Methods For Synthesizing Basic Algorithms For The Higher Levels Of Saeps Controlmentioning

confidence: 99%

Solving a task of coordinated control over a ship automated electric power system under a changing load

Budashko

Shevchenko

2021

EEJET

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Effective mode of voltage in the electrical network when powering ships of the technical fleet and floating objects from the shore

Denchik

Zubanov

Romanov

2021

J. Phys.: Conf. Ser.

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The article discusses negative consequences of a decrease in the quality of electrical energy when feeding ship receivers of electricity from coastal sources, a method is proposed to ensure an effective voltage regime in the electrical network when feeding ships of technical fleet and floating objects from the coast. Definition of the equilibrium voltage mode at the “shore-to-ship” power supply scheme is given, the equivalent circuit of supply line (feeder) for the river fleet is developed, significant regulatory effects of the “shore-to-ship” power transmission elements are determined. Experimental studies of static characteristics of floating crane of R-99 project have been carried out. According to the results of the experiment, regulating effects on the voltage of the complex load of 0.4 kV of floating crane were determined. A calculation program for personal electronic computers has been compiled, which provides an assessment of the impact of voltage deviations in electrical networks when regulating the load. The law of voltage regulation in the “shore-to-ship” power transmission is proposed. An experimental verification of effectiveness of proposed regulation law was carried out while ensuring the equilibrium mode.

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Review and Prospects of Fault Ride-Through Technologies for Grid-Forming Converters

Li,

Tao

et al. 2024

2024 IEEE 10th International Power Electronics and Motion Control Conference (IPEMC2024-ECCE Asia)

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Voltage stability assessment accounting for current-limited converters

Cited by 4 publications

References 18 publications

Solving a task of coordinated control over a ship automated electric power system under a changing load

Solving a task of coordinated control over a ship automated electric power system under a changing load

Effective mode of voltage in the electrical network when powering ships of the technical fleet and floating objects from the shore

Review and Prospects of Fault Ride-Through Technologies for Grid-Forming Converters

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