Design of energy storage control strategy to improve the PV system power quality

Abstract Specifically for wind and photovoltaic, energy Storage is well regarded as an important tool for renewable energy. Distributed generation could also give benefits, but the position and use of wind energy are almost reciprocal to the PV system. So the needs of energy storage devices are coming into account for enhancing the power generations. This chapter gives brief idea about the conventional and flow based battery system for energy storage in power system. Here various conventional battery system compared with flow battery system for maintaining the power stabilities and power quality. The objective for this study is to find the better energy storage device which can regulate both stability and efficiency of the renewable energy system. Basically wind energy battery storage systems are depicted here with their construction, operation and usability. This paper can be effective for the researchers to study and to implement the better energy storage device in the wind or solar system to regulate the power quality. A brief comparison was highlighted in the discussion section for better analysis.

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A Comparative Study of Supercapacitor-Based STATCOM in a Grid-Connected Photovoltaic System for Regulating Power Quality Issues

Sustainability ◽

10.3390/su12176781 ◽

2020 ◽

Vol 12 (17) ◽

pp. 6781 ◽

Cited By ~ 1

Author(s):

Muhammad Moin Afzal ◽

Muhammad Adil Khan ◽

Muhammad Arshad Shehzad Hassan ◽

Abdul Wadood ◽

Waqar Uddin ◽

...

Keyword(s):

Energy Storage ◽

Power Quality ◽

Reactive Power ◽

Voltage Drop ◽

Storage System ◽

Energy Storage System ◽

Photovoltaic System ◽

Renewable Energy Resources ◽

Pv System ◽

Quality Issues

Renewable energy resources (RERs) play a vital role in reducing greenhouse gases, as well as balancing the power generation demand in daily life. Due to the high penetration of RERs and non-linear loads into utility power systems, various power quality issues arise, i.e., voltage drop, harmonic distortion, reactive power demand, etc. In order to handle these power quality issues, there is a need for smart flexible alternating current transmission system (FACTS) devices. In this paper, a super capacitor energy storage system (SCESS)-based static synchronous compensator (STATCOM) is designed in order for the grid-connected photovoltaic (PV) system to overcome the abovementioned power quality issues. A voltage controller and a d-q axis controller are used for the efficient performance of the STATCOM. In order to show the superiority of the supercapacitor, a detailed comparison is made between a battery energy storage system (BESS)-based STATCOM and a SCESS-based STATCOM. Four scenarios are studied to evaluate the performance of the proposed STATCOM design. The proposed SCESS-based STATCOM not only boosts the voltage but also stabilizes it from 368 V to 385 V (Ph-Phrms). The simulated results have confirmed that the proposed design is not only superior to a BESS-based STATCOM but also has the capability to overcome the power quality issues as well.

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Improving off-grid PV system power quality, and comparing with grid power quality

2016 International Conference on Electronics, Information, and Communications (ICEIC) ◽

10.1109/elinfocom.2016.7562928 ◽

2016 ◽

Cited By ~ 2

Author(s):

Ali Algaddafi ◽

Neil Brown ◽

Rupert Gammon ◽

Saud A Altuwayjiri ◽

Mohammed Alghamdi

Keyword(s):

Power Quality ◽

Pv System ◽

System Power

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Battery Storage Integration in Voltage Unbalance and Overvoltage Mitigation Control Strategies and Its Impact on the Power Quality

Energies ◽

10.3390/en12081501 ◽

2019 ◽

Vol 12 (8) ◽

pp. 1501 ◽

Cited By ~ 6

Author(s):

Dimitar Bozalakov ◽

Mohannad J. Mnati ◽

Joannes Laveyne ◽

Jan Desmet ◽

Lieven Vandevelde

Keyword(s):

Energy Storage ◽

Power Quality ◽

Control Strategy ◽

Control Strategies ◽

Storage System ◽

Energy Storage System ◽

Voltage Unbalance ◽

Phase Damping ◽

Damping Control ◽

Three Phase

The increased utilisation of distributed renewable energy sources in low voltage grids leads to power quality problems such as overvoltages and voltage unbalance. This imposes challenges to the distribution system operators to maintain the power quality in their grids. To overcome these issues, energy storage systems could be integrated together with the distributed energy resources and the stored energy could be used when needed to better improve power quality and achieve better grid performance. However, integrating an energy storage system introduces additional cost, therefore, determining the right capacity is essential. In this article, an energy storage system is combined with the classical positive-sequence control strategy and the three-phase damping control strategy. The three-phase damping control strategy is able to mitigate the voltage unbalance by emulating a resistive behaviour towards the zero- and negative-sequence voltage components. This resistive behaviour can be set on different values such that the desired voltage unbalance mitigation is achieved. Hence, the three-phase damping control strategy, equipped with the energy storage system is investigated under different values of the resistive behaviour. Both control strategies are investigated under the same conditions and the impact of the different capacities of the energy storage systems is investigated.

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