Analysis of the Influence of Distributed Photovoltaic on Automatic Reclosing

Hu, Xuekai; Meng, Liang; Zhang, Qian; Wang, Lei

doi:10.1109/icpsasia52756.2021.9621671

Cited by 2 publications

(2 citation statements)

References 4 publications

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“…Assuming the cut-off frequency is 10Hz, it has a large noise compared with the filter effect in Figure 6 (b). Since the general low pass filter needs to set the cut-off filtering frequency, and LMS adaptive filter can adaptively filter according to the noise frequency of the collected data, compared with the general low pass filter, it can adapt to the filtering of noise in a wider frequency band, so as to obtain more accurate sensor data [14].…”

Section: Sensor Data Acquisition and Filtering Experimentsmentioning

confidence: 99%

The research on data acquisition and processing method of photovoltaic special metering protection unit based on LMS adaptive filtering

Zhu¹,

Chen

Kong³

et al. 2023

J. Phys.: Conf. Ser.

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In order to solve the problem of synchronous acquisition of multi-parameter data of photovoltaic special metering protection unit and reduce the noise pollution of sensor data, this paper designs a multi-parameter data acquisition system of photovoltaic special metering protection unit; The system uses RN7326 and SWM32F103R chips as the main and auxiliary microprocessors, and designs a scheme of multi-sensor signal filtering and interface resource acquisition; The standardized data communication protocol is studied and designed to realize the synchronous data acquisition of multiple sensors; Finally, the LMS (Least mean square) based on adaptive filtering method is used to reduce the noise of multi-parameter data. In this paper, the temperature sensor pt100 is taken as an example to conduct temperature acquisition and filtering processing experiments. After data filtering, the noise above 1Hz is basically eliminated, and the noise pollution is effectively reduced when the noise amplitude is less than 1Hz, and the accuracy of sensor data is improved.

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Section: Sensor Data Acquisition and Filtering Experimentsmentioning

confidence: 99%

The research on data acquisition and processing method of photovoltaic special metering protection unit based on LMS adaptive filtering

Zhu¹,

Chen

Kong³

et al. 2023

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

show abstract

“…Under a low-carbon background, photovoltaic power generation, as a mature zerocarbon power supply technology, will play an important role in achieving the dual-carbon goal, and the proportion of access to the power grid will continue to increase [1]. After a high proportion of photovoltaic (PV) is connected to the distribution network, the distribution network will generate reverse power flow, which will lead to the node voltage exceeding the limit, and the voltage control strategy of the distribution network will face challenges [2][3][4][5]. The authors of [6] used the method of strengthening the network structure of the power system in order to improve the voltage deviation, but the cost was high [7].…”

Section: Introductionmentioning

confidence: 99%

Voltage Control Strategy for Low-Voltage Distribution Network with Distributed Energy Storage Participating in Regulation under Low-Carbon Background

et al. 2023

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With the gradual advancement towards the goal of carbon neutrality, photovoltaic power generation, as a relatively mature zero-carbon power technology, will be connected to the grid in an increasing proportion. A voltage control strategy, involving distributed energy storage, is proposed in order to solve the voltage deviation problem caused by the high proportion of PV connected to the low voltage distribution network (LVDN). A voltage calculation method of the LVDN node with a high proportion of PV is proposed. According to the voltage distribution of the LVDN nodes running throughout the day, fuzzy cluster analysis was used to partition the nodes in the LVDN. A two-objective mathematical model for optimizing distributed energy storage in a partition was constructed, and a particle swarm optimization algorithm was used to solve the model. A voltage control strategy based on sensitivity analysis is proposed, and a mathematical model is established to analyze the relationship between the node current increment and the node off-limit voltage. The mathematical relationship among the node off-limit voltage, node off-limit power and energy storage exchange power is derived, and the voltage deviation of the distribution network can be suppressed by adjusting the injected power of the distributed energy storage. Through case analysis, it is verified that the proposed voltage control strategy can reduce the voltage deviation of the distribution network nodes, effectively solve the problem of the distribution network voltage deviation, and reduce the active power loss.

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Analysis of the Influence of Distributed Photovoltaic on Automatic Reclosing

Cited by 2 publications

References 4 publications

The research on data acquisition and processing method of photovoltaic special metering protection unit based on LMS adaptive filtering

The research on data acquisition and processing method of photovoltaic special metering protection unit based on LMS adaptive filtering

Voltage Control Strategy for Low-Voltage Distribution Network with Distributed Energy Storage Participating in Regulation under Low-Carbon Background

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