Optimal operation of under-frequency load shedding relays by hybrid optimization of particle swarm and bacterial foraging algorithms

Awad, Hilmy; Hafez, Ahmed A. A.

doi:10.1016/j.aej.2021.06.034

Cited by 19 publications

(12 citation statements)

References 31 publications

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“…e test system data generator, bus, and transmission line data is given in Tables 13-15, respectively. e online diagram of the modified IEEE 39 bus test system is shown in Figure 18 [48].…”

Section: Ieee 39 Bus Test Systemmentioning

confidence: 99%

STATCOM Controller Tuning to Enhance LVRT Capability of Grid-Connected Wind Power Generating Plants

Muisyo¹,

Muriithi

Kamau

2022

Journal of Electrical and Computer Engineering

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This paper investigates the utilization of a STATCOM to enhance the LVRT capability of wind power plants (WPPs) during grid faults. The STATCOM under investigation is tuned using the Water Cycle Algorithm (WCA), Particle Swarm Optimization (PSO), and a hybrid algorithm of both WCA and PSO. Simulations are conducted in MATLAB programming software, using the SimScape power system toolbox, where two test systems are investigated: a 9 MW WPP and the IEEE 39 bus test system. Performance analysis is done by investigating the ability of the WPPs to ride through grid voltage sags, with the incorporation of the STATCOM, independently tuned using WCA, PSO, and further with the hybrid WCA-PSO algorithm. To confirm the effectiveness of the proposed algorithm, simulation results for the three scenarios are compared. Results show that the LVRT capability of the German power system was met for L-G faults, for the 9 MW test system, whereas during LLL-G faults, the WPP only remained online for WCA and WCA-PSO tuned STATCOM. For the IEEE 39 bus system, the WPPs were able to ride through the LLL-G fault. In all scenarios, the WCA-PSO tuned STATCOM resulted in the least voltage, active, and reactive power overshoots.

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“…e test system data generator, bus, and transmission line data is given in Tables 13-15, respectively. e online diagram of the modified IEEE 39 bus test system is shown in Figure 18 [48].…”

Section: Ieee 39 Bus Test Systemmentioning

confidence: 99%

STATCOM Controller Tuning to Enhance LVRT Capability of Grid-Connected Wind Power Generating Plants

Muisyo¹,

Muriithi

Kamau

2022

Journal of Electrical and Computer Engineering

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“…An increasing number of swarm intelligence algorithms have been applied to microgrid dispatching optimization to overcome such problems. Some mature swarm intelligence algorithms, such as PSO [ 11 ], GA [ 12 ], and WOA [ 13 ] are widely used in microgrid dispatching optimization due to their advantages of fast convergence and simple processes. However, these traditional algorithms also easily fall into local optima, have low efficiency, premature convergence results, and low precision.…”

Section: Introductionmentioning

confidence: 99%

Research on Economic Optimal Dispatching of Microgrid Based on an Improved Bacteria Foraging Optimization

Zhou

2023

Biomimetics

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This paper proposes an improved Bacterial Foraging Optimization for economically optimal dispatching of the microgrid. Three optimized steps are presented to solve the slow convergence, poor precision, and low efficiency of traditional Bacterial Foraging Optimization. First, the self-adaptive step size equation in the chemotaxis process is present, and the particle swarm velocity equation is used to improve the convergence speed and precision of the algorithm. Second, the crisscross algorithm is used to enrich the replication population and improve the global search performance of the algorithm in the replication process. Finally, the dynamic probability and sine-cosine algorithm are used to solve the problem of easy loss of high-quality individuals in dispersal. Quantitative analysis and experiments demonstrated the superiority of the algorithm in the benchmark function. In addition, this study built a multi-objective microgrid dynamic economic dispatch model and dealt with the uncertainty of wind and solar using the Monte Carlo method in the model. Experiments show that this model can effectively reduce the operating cost of the microgrid, improve economic benefits, and reduce environmental pollution. The economic cost is reduced by 3.79% compared to the widely used PSO, and the economic cost is reduced by 5.23% compared to the traditional BFO.

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“…According to the authors in [17], besides the frequency variation, the frequency derivative is also used to perform the load-shedding operation and to ensure that the tie-line does not disconnect in order to avoid cascading events, however, according to scenario 2, the loss of the two generators, respectively, at 1.3 and 1.5 s caused the trip of the second tie line, resulting in a higher load-shedding quantity. According to the authors in [18], the gaps of the literature in implementing the load-shedding schemes are that most researchers focused, either in the quantity, see [19] to be shed and the economic benefits gained [20], or in the frequency thresholds, see [21]. The transit in the tie lines is an important information to identify the location and severity of the event in the schemes proposed in the literature, this information has not been used to adapt the load shedding in the fault areas.…”

Section: Introductionmentioning

confidence: 99%

A New Adaptive Under-Frequency Load Shedding Scheme for Multi-Area Power System, 1-10.

Tiguercha,

Ladjici,

Saboune

2023

International Journal of Power and Energy Systems

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Under-frequency load shedding (UFLS) is a critical function of frequency control in a power system. This paper presents a new adaptive UFLS scheme in multi-area power systems, where the frequency thresholds and load to be shed are adapted to the severity of the disturbance in each control area. In this approach, the frequency thresholds are adapted by a fuzzy logic controller using the rate of change of frequency (RoCoF), the tie-line transit, the amount of load to be shed is estimated according to the available tie-line capacity and spinning reserve. The objective is to avoid the collapse of the power system following a major disturbance, by shedding a sufficient amount of load while avoiding the tripping of the tie-lines. Numerical simulations are performed on the multi-area Algerian transmission power system and used to demonstrate the effectiveness of the proposed approach compared to the conventional and adaptive approaches. The results show the effectiveness of the proposed approach, with a better quality of frequency control by adapting the amount of load shedding to the severity of the disturbance, and ensuring a better stability of the system by avoiding tripping of the tie-lines.

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Optimal operation of under-frequency load shedding relays by hybrid optimization of particle swarm and bacterial foraging algorithms

Cited by 19 publications

References 31 publications

STATCOM Controller Tuning to Enhance LVRT Capability of Grid-Connected Wind Power Generating Plants

STATCOM Controller Tuning to Enhance LVRT Capability of Grid-Connected Wind Power Generating Plants

Research on Economic Optimal Dispatching of Microgrid Based on an Improved Bacteria Foraging Optimization

A New Adaptive Under-Frequency Load Shedding Scheme for Multi-Area Power System, 1-10.

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