Modeling method of variable frequency air conditioning load

Zi, Peng; Luo, Pandeng; Wang, Qi; Zhao, Bing; Huang, Jie; Lan, Tiankai

doi:10.1016/j.egyr.2022.11.035

Cited by 5 publications

(5 citation statements)

References 1 publication

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“…Jurnal Inovasi Vokasional dan Teknologi state operation, the voltage stabilized likely due to the constant speed maintained by the inverter controller [8]. The applied voltage stayed within the expected range for single-phase power, verifying proper operation of the AC unit.…”

Section: N V O T E Kmentioning

confidence: 80%

“…The supply temperature drops up to 9.5°C during the investigation. However, the lowest temperature is reached, down to 8.5°C in approximately 3300 s, this indicates that the evaporator coil had reached its fully cooled equilibrium state by this point [8]. From about 300 s, there was no visible fluctuation in the supply temperature.…”

Section: N V O T E Kmentioning

confidence: 91%

“…However, this small decrease in frequency is considered acceptable and within normal operating limits for the inverter [10]. The stability of the output frequency at 50 Hz (±0.1 Hz) indicates steady and controlled operation of the inverter to generate the standardized Alternating Current power waveform [8]. rating.…”

Section: N V O T E Kmentioning

confidence: 94%

“…The inverter enables variable speed control of the compressor, differing from traditional fixed-speed AC compressors which can only run at a constant speed. This variable compressor speed capability improves temperature regulation, efficiency, and performance of air conditioning systems with inverter technology compared to conventional fixed-speed units [8]. The advantage offered by this technology is that it is capable of saving electricity consumption.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Experimental Study of Cooling Performance and Electrical Parameters in a Microcontroller-Driven Inverter AC System

Negara,

Anakottapary,

Midiani

et al. 2023

INVOTEK

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Recent advancements in air conditioning (AC) technologies, such as inverters, enable the compressor to remain activated despite reaching the setpoint temperature. This study investigates the cooling performance and electrical parameters of a split inverter AC system controlled by a microcontroller in order to determine the operational performance characteristics of the air conditioning system. An ATmega 2560 microcontroller integrated with PZEM, DS18B20, and LCD I2C sensors monitors was 8,525 Btu/h capacity split inverter AC. During a 1-hour experimental run, the temperature differential between supply air (Tsupply) and return air (Treturn) stabilized at approximately 17 °C, with Tsupply reaching a minimum of 8.5 °C. Treturn remained relatively constant after 500 s with no fluctuations. Moreover, power draw maintained an average of 750 W (1 PK) with no variations, exhibiting an inverse relationship with Tsupply. The maximum energy consumption recorded during the experiment was 1,373 kWh. As expected based on fundamental thermodynamic principles, the energy usage showed a direct proportional relationship with the total runtime of the system. That is, the longer the AC system was engaged, the higher the total energy required to maintain the cooling effect. Overall, microcontroller-based split inverter AC enables real-time performance monitoring and efficient operation, representing a promising technology.

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Section: N V O T E Kmentioning

confidence: 80%

Section: N V O T E Kmentioning

confidence: 91%

Section: N V O T E Kmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Experimental Study of Cooling Performance and Electrical Parameters in a Microcontroller-Driven Inverter AC System

Negara,

Anakottapary,

Midiani

et al. 2023

INVOTEK

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show abstract

“…With the integration of Microgrids and distributed generation, there is a need to understand the importance of the effects of loads on the stability of power grids [3]. Currently, loads like an aggregate of Electric vehicle charging station loads [4,5] and variable air conditioning load [6][7][8][9] which contains the power electronics parts may cause instability in the system. So, the study of load modeling is crucial for the stability monitoring of power systems [10].…”

Section: Introductionmentioning

confidence: 99%

Measurement-based ZIP load modelling using opposition based differential evolution optimization

Kumar

Mallik

2023

Eng. Res. Express

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With the large integration of distributed generations, power grids are on the verge of instability if the generation and load side is not synchronized properly. To predict the load, a proper load model should be developed for the purpose of power system monitoring. The ZIP load model is considered in this work due to its simplicity. The parameter of the ZIP load corresponding to constant power, constant impedance, and constant current load must be estimated accurately for predicting the load behavior. In this paper, the measurements are being compared with the estimated value for estimating the load parameters using a suitable parameter tuning method. For ZIP load modeling Measurement-based parameter estimation is applied. In this paper, measurements are simulated by statistically infusing the Gaussian noise into the true value (obtained from the load flow study). The parameter-tuning algorithm iteratively feeds the error discovered from the comparison to determine the optimal solution. In this paper, Opposition-based differential evolution optimization (ODEO) is being proposed as a parameter tuning method for estimating the load parameters from the measurements collected at a given load bus. Measurement of the ZIP load is collected at bus 30 of the NE 39 Bus system after applying step disturbance of voltage at generator 4. The proposed ODEO method is validated and compared with the other tuning methods, like Particle Swarm optimization (PSO) and Grey Wolf optimization (GWO). The proposed ODEO method has a better performance as compared to PSO and GWO.

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Aggregated Load Model of Inverter Air Conditioners Considering Low-Voltage Release

Nie,

Jin,

et al. 2024

2024 3rd International Conference on Energy and Electrical Power Systems (ICEEPS)

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Modeling method of variable frequency air conditioning load

Cited by 5 publications

References 1 publication

Experimental Study of Cooling Performance and Electrical Parameters in a Microcontroller-Driven Inverter AC System

Experimental Study of Cooling Performance and Electrical Parameters in a Microcontroller-Driven Inverter AC System

Measurement-based ZIP load modelling using opposition based differential evolution optimization

Aggregated Load Model of Inverter Air Conditioners Considering Low-Voltage Release

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