Investigating the Impact of Pulsed Load on Different Isolated Power Systems

2013 ◽  
Vol 732-733 ◽  
pp. 1016-1022 ◽  
Author(s):  
Li Xia ◽  
Xin Zhi Wang ◽  
Chao Zhang
Keyword(s):  
Energy Storage ◽  
Power Systems ◽  
Power Quality ◽  
Pulsed Power ◽  
Considerable Influence ◽  
Charging Time ◽  
Power Load ◽  
The Impact ◽  
Pulsed Power Loads

Pulsed power load system releases large energy after short charging time,and has considerable influence on power quality of Isolated Power System (IPS). This paper builds two kinds of IPS models, pulsed power loads and energy storage module (ESM) in PSCADTM. The impact of pulsed power loads with different rated power on IPS is examined. It is also shown that the ESM and propulsion system can be used to further reduce the impact of pulsed power load on IPS.

scholarly journals An Intelligent Battery Energy Storage-Based Controller for Power Quality Improvement in Microgrids

Energies ◽  
2019 ◽  
Vol 12 (11) ◽  
pp. 2112 ◽  
Author(s):  
Jaber Alshehri ◽  
Muhammad Khalid ◽  
Ahmed Alzahrani
Keyword(s):  
Energy Storage ◽  
Power Systems ◽  
Power Quality ◽  
Renewable Energy Sources ◽  
Operating Conditions ◽  
Frequency Regulation ◽  
Battery Energy Storage ◽  
Control Approach ◽  
Battery Energy

Modern power systems rely on renewable energy sources and distributed generation systems more than ever before; the combination of those two along with advanced energy storage systems contributed widely to the development of microgrids (MGs). One of the significant technical challenges in MG applications is to improve the power quality of the system subjected to unknown disturbances. Hence innovative control strategies are vital to cope with the problem. In this paper, an innovative online intelligent energy storage-based controller is proposed to improve the power quality of a MG system; in particular, voltage and frequency regulation at steady state conditions are targeted. The MG system under consideration in this paper consists of two distributed generators, a diesel synchronous generator, and a photovoltaic power system integrated with a battery energy storage system. The proposed control approach is based on hybrid differential evolution optimization (DEO) and artificial neural networks (ANNs). The controller parameters have been optimized under several operating conditions. The obtained input and output patterns are consequently used to train the ANNs in order to perform an online tuning for the controller parameters. Finally, the proposed DEO-ANN methodology has been evaluated under random disturbances, and its performance is compared with a benchmark controller.

scholarly journals Power quality metrics for DC grids with pulsed power loads

ACTA IMEKO ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 153
Author(s):  
Andrea Mariscotti
Keyword(s):  
Power Quality ◽  
Pulsed Power ◽  
Control Methods ◽  
Unified Approach ◽  
Voltage Fluctuation ◽  
Regulatory Limits ◽  
Wide Range ◽  
The Impact ◽  
Pulsed Power Loads ◽  
Suitable Power

<span lang="EN-GB">DC grids can effectively feed pulsed power loads (PPLs), integrating local energy storage to minimize the impact on other connected loads and implementing buffered sub-grids to isolate susceptible loads even more. The identification of regulatory limits for PPL integration and DC grid response and the assessment of PPL impact necessitate suitable Power Quality (PQ) metrics. Existing indexes and limits (e.g. ripple and distortion, voltage fluctuation) are compared to other metrics, derived from control methods and knowledge of the peculiar characteristics of PPL and interaction with DC grids in some examples. The objective is a unified approach for PQ metrics suitable for a wide range of DC grids and in particular to the behavior of PPLs.</span>

The Series and Parallel Energy Storage System Based on Super Capacitors

2014 ◽  
Vol 989-994 ◽  
pp. 2820-2824
Author(s):  
Kuo Zhao ◽  
Yi Bin Zhang ◽  
Bo Yu
Keyword(s):  
Energy Storage ◽  
Power Quality ◽  
Wind Turbines ◽  
Storage System ◽  
Energy Storage System ◽  
Wide Range ◽  
The Stability ◽  
The Impact ◽  
Super Capacitors

The series and parallel energy storage system based on super capacitors can quickly adjust a wide range of active and reactive power in two directions, which is a new way to improve the stability and power quality of new energy power generation system. In this paper, double converters structure is used to achieve the series and parallel compensation effect and their control strategies according to Instantaneous Power Theory. It is simulated in PSCAD that series and parallel energy storage system of super capacitor contribute to the impact on wind turbines power as environment conditions change. Simulation results show that the energy storage system can greatly improve the stability and power quality of grid-connected wind turbines.

Sign in / Sign up

Export Citation Format

Share Document