Current Harmonic Aggregation Cases for Contemporary Loads

Daniel, Kamran; Kütt, Lauri; Iqbal, Muhammad Naveed; Shabbir, Noman; Rehman, Ateeq Ur; Shafiq, Muhammad; Hamam, Habib

doi:10.3390/en15020437

Cited by 11 publications

(3 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This led to a decrease of 3% in nuclear power production. Low-carbon energy production increased overall, allowing fossil fuel-produced electricity to be reduced by approximately 3% [48]. Low prices for natural gas boosted the growth of gas-fired generation worldwide by 4%.…”

Section: Electricity Supply In the First Two Quarters Of 2021 Compare...mentioning

confidence: 99%

A Critical Analysis of the Impact of Pandemic on China’s Electricity Usage Patterns and the Global Development of Renewable Energy

Mastoi

Munir

Zhuang

et al. 2022

IJERPH

View full text Add to dashboard Cite

The COVID-19 pandemic has impacted economic activity in numerous sectors due to multiple forms of disruption, including border closures, a stay-at-home policy, and social isolation; the electricity consumption trends in this region will undoubtedly improve. This article examines the impact of COVID-19 on electricity generation and consumption in China during the first two quarters (Q1–Q2) of 2020 and 2021. Furthermore, several governments’ perspectives on COVID-19’s implications for renewable energy development, notably offshore wind power and solar photovoltaics (PV), were examined. Results of this article show that COVID-19 impacts the power industry. According to the analysis, during the first two quarters of 2020, the amount of electricity generated and consumed by China decreased by 1.4 and 1.3 percent, respectively, the capacity of the power plants increased by 5.3 GW and coal consumption dropped by 3.6 g/kWh. Investments in the power generation sector increased by 51.5 billion yuan and investment in the power grid grew by 0.7 billion. Additionally, new generation capacity decreased by 378 GW during the first two quarters of 2020. During the first two quarters of 2021, electricity consumption and production grew by 13.7 and 16.2 percent, respectively. Power plants’ capacity increased by 9.5 GW, while coal consumption for power supply fell by 0.8 g/kWh. The investment in power generation projects increased by 8.9 billion, while investment in power grid projects increased by 4.7 billion. Compared to last year’s same period, 14.92 GW of new capacity was installed. Due to lockdown measures, such as studying at home or working at home, domestic power use in the first two quarters of 2020–2021 increased by 6.6 and 4.5 percent, respectively. To minimize COVID-19’s impact on renewable energy development and assist in building offshore wind power plants, economic and financial measures have been put in place to reduce the epidemic’s effect on solar PV systems.

show abstract

Section: Electricity Supply In the First Two Quarters Of 2021 Compare...mentioning

confidence: 99%

A Critical Analysis of the Impact of Pandemic on China’s Electricity Usage Patterns and the Global Development of Renewable Energy

Mastoi

Munir

Zhuang

et al. 2022

IJERPH

View full text Add to dashboard Cite

show abstract

“…In [26], the effect of harmonic currents' cancellation on the aggregation of different load currents is evaluated to measure its impact on the grid-side by presenting a comparison between the measurement and mathematical aggregation of harmonics. Furthermore, the harmonic cancellation is also qualified for multiple loads connected to the power supply.…”

Section: Introduction 1motivation and Ideamentioning

confidence: 99%

Power Quality Mitigation via Smart Demand-Side Management Based on a Genetic Algorithm

Eisenmann¹,

Streubel²,

Rudion³

2022

Energies

View full text Add to dashboard Cite

In modern electrical grids, the number of nonlinear grid elements and actively controlled loads is rising. Maintaining the power quality will therefore become a challenging task. This paper presents a power quality mitigation method via smart demand-side management. The mitigation method is based on a genetic algorithm guided optimization for smart operational planning of the grid elements. The algorithm inherits the possibility to solve multiple, even competing, objectives. The objective function uses and translates the fitness functions of the genetic algorithm into a minimization or maximization problem, thus narrowing down the complexity of the addressed high cardinality optimization problem. The NSGA-II algorithm is used to obtain feasible solutions for the auto optimization of the demand-side management. A simplified industrial grid with five different machines is used as a case study to showcase the minimization of the harmonic distortion to normative limits for all time steps during a day at a specific grid node, while maintaining the productivity of the underlying industrial process.

show abstract

“…Power supplies are vital to any electronic device, and modern electronics require efficient power supplies [1]. They are present in almost every electro/electronic unit.…”

Section: Introductionmentioning

confidence: 99%

Low-Cost/High-Precision Smart Power Supply for Data Loggers

et al. 2022

View full text Add to dashboard Cite

This paper presents a low-cost/high-precision smart power supply for application on data loggers. The microprocessor unit is the brain of the system and manages the events and was optimized to provide electrical energy to the electronic devices under normal operation and under the presence of disruptive events. The measurements showed that when switching either from battery to AC or from AC to battery, neither caused the shutdown of the power supply nor affected the behavior of the power supply. The power supply was able to charge 80% of the battery on a fast recharge of 1 h and the remaining 20% on a slow recharge of 2 h. The current allocated to the battery did not affect the operation of the power supply. The tests also showed that the power supply was able to transmit relevant information about its operation to external computers through a serial connection. This information includes the voltages at the battery and at the output of the voltage regulators, the voltage level of the AC network, the level of the battery charge and if it was being recharged, the current being drained, the internal temperatures at two locations (one measured on the resistor that limits battery charge and another measured on the output diode of the regulators), and whether the cooling system is being used. The total cost of this smart power supply is less than $150, demonstrating good potential for its popularization.

show abstract

Current Harmonic Aggregation Cases for Contemporary Loads

Cited by 11 publications

References 23 publications

A Critical Analysis of the Impact of Pandemic on China’s Electricity Usage Patterns and the Global Development of Renewable Energy

A Critical Analysis of the Impact of Pandemic on China’s Electricity Usage Patterns and the Global Development of Renewable Energy

Power Quality Mitigation via Smart Demand-Side Management Based on a Genetic Algorithm

Low-Cost/High-Precision Smart Power Supply for Data Loggers

Contact Info

Product

Resources

About