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Author

Chang Mingheng

Bio: Chang Mingheng is an academic researcher from Lanzhou University. The author has contributed to research in topics: Smart grid & Printed circuit board. The author has an hindex of 1, co-authored 3 publications receiving 28 citations.

Papers
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Journal ArticleDOI
15 Feb 2021-Energy
TL;DR: A novel hybrid forecasting system is proposed in this paper that includes effective data decomposition techniques, recurrent neural network prediction algorithms and error decomposition correction methods, and decomposes the error to correct the previously predicted wind speed.

121 citations

Patent
23 Jan 2018
TL;DR: In this article, a dual-purpose intelligent movement humidifier round clock, including the dolly, installs motor and hollow casing on a dolly and the rigid coupling has abaffle in the casing, and the baffle is with inside each other two the not communicating cavitys that are divided into of casing and the cavity above lieing in be the water tank, and level sensor isinstalled to the watertank bottom, installs solar panel on the casing outer wall, and there is the play fog mouth that feeds through a water tank on casing upper portion, have motor driver module
Abstract: The utility model provides a solar energy is dual -purpose intelligent movement humidifier round clock, includes the dolly, installs motor and hollow casing on the dolly, and the rigid coupling has abaffle in the casing, and the baffle is with inside each other two the not communicating cavitys that are divided into of casing, and the cavity above lieing in be the water tank, and level sensor isinstalled to the water tank bottom, installs solar panel on the casing outer wall, and there is the play fog mouth that feeds through the water tank on casing upper portion, have motor driver module,humidification circuit module, singlechip, infrared sensor and temperature and humidity sensor in the cavity below the water tank, the singlechip links to each other with motor driver module, humidification circuit module, mains operated module, rechargeable battery, temperature and humidity sensor and solar panel respectively, there are infrared tracking module and light -operated circuit on thedolly, motor driver module passes through the motor drive dolly and removes. This removal humidifier carries out the intelligent movement humidification to the whole region that needs the humidification, increases the wet effect of imposition, utilizes the solar energy power supply, the energy saving, but also can charge for the battery to use when being equipped with night.

1 citations

Patent
19 Jun 2018
TL;DR: In this paper, an integrated chaotic circuit consisting of four channels and four analog multipliers, eight operational amplifiers and multiple resistors and capacitors is described, except for some fixed resistors which are directly welded in a circuit board.
Abstract: The invention discloses an integrated chaotic circuit which consists of four channels and comprises four analog multipliers, eight operational amplifiers and multiple resistors and capacitors. In thecircuit disclosed by the invention, except for some fixed resistors which are directly welded in a circuit board, the other resistors and capacitors are convertible, and the bases of the elements arewelded in the circuit board; in the case of fixed capacitor, a potentiometer with corresponding resistance is selected to be inserted into a corresponding base according to the resistance required bya specific calculation circuit; and then connection is carried out according to the circuit, to obtain a circuit of corresponding chaotic system. With strong portability, the circuit board has a greatapplication value in chaotic circuit research and non-linear chaotic circuit teaching.

Cited by
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Journal ArticleDOI
01 Jan 2022-Energy
TL;DR: Wang et al. as discussed by the authors proposed a hybrid decomposition method coupling the ensemble patch transform (EPT) and the complete ensemble empirical mode decomposition with adaptive noise (CEEMDAN), where EPT is utilized to extract the trend of wind speed, then CEEMDan is employed to divide the volatility into several fluctuation components with different frequency characteristics.

65 citations

Journal ArticleDOI
01 Jan 2022-Energy
TL;DR: An improved electricity price forecasting model is developed that offers the advantages of adaptive data preprocessing, advanced optimization method and kernel-based model, and optimal model selection strategy, and a newly proposed optimal models selection strategy is applied to determine the developed model that provides the most desirable forecasting result.

58 citations

Journal ArticleDOI
15 Jul 2021-Energy
TL;DR: The forecasting results show the superior performance of the proposed nonlinear relationship extraction (NRE) method compared to several outstanding forecasters.

49 citations

Journal ArticleDOI
01 Oct 2021-Energy
TL;DR: Optized ANNs are proposed for sizing and simulating a clean energy community (CEC) that employs a PV-wind hybrid system, coupled with energy storage systems and electric vehicle charging stations, to meet the building district energy demand.

48 citations