Modeling and design of the improved D-STATCOM control for power distribution grid
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Modeling and design of the improved D‑STATCOM control for power distribution grid Kamel Djamel Eddine Kerrouche1,2 · Ehtisham Lodhi3,4 · Mustapha Boualem Kerrouche5 · Lina Wang1 · Fenghua Zhu3,4 · Gang Xiong6 Received: 5 March 2020 / Accepted: 7 August 2020 © Springer Nature Switzerland AG 2020
Abstract The distribution static compensator (D-STATCOM) is a power quality compensator, which can be utilized for improving the power quality of the distribution power grid by managing the flow of reactive power and unbalanced caused by variable and unbalanced loads. This paper develops the concept of regulating the D-STATCOM scheme to improve the dynamic proficiency of the power distribution network during electrical network defects, such as voltage drops and voltage swells. Furthermore, the methodology adopted in this research paper is established to utilize the sliding mode control (SMC) for the proper working of D-STATCOM. The simulation of the suggested SMC methodology has been carried out by employing the MATALB/Simulink software and compared the results with traditional proportional integrator regulator. The results show that the suggested approach controlling the D-STATCOM achieves sinusoidal and symmetrical grid current with less harmonics; moreover, it can efficiently eliminate the oscillations produced in active and reactive power. Hence, the proposed strategy is helpful in mitigating the voltage flicker and improving the overall efficiency of the distribution grid. Keywords Distribution static compensator (D-STATCOM) · Sliding mode control (SMC) · Proportional integrator (PI)
1 Introduction The power quality of the distribution grid has been degraded due to propagation of power electronic devices, variable unbalanced and nonlinear loads. The traditional power devices are most favored to enhance the power quality of the overall system [1, 2]. From the literature, it can be seen that numerous power devices are utilized to lessen the power quality issues by injecting currents–voltages or both into the distribution grid. The D-STATCOM is
a shunt connected power equipment that is used to inject current at the point of common couple (PCC) [3]. The development and use of D-FACTS controllers in the distribution power grids have led to many applications that ensure the stability of the global network [4]. In [5], the various synthesizing controllers are utilized to improve the overall efficiency of distribution power grid with stable voltage. One of these issues addressed in other research to advance the dynamic performance of power distribution grid, while improving the modulation techniques that are used in D-STATCOM [6]. However, the strict requirement of
* Gang Xiong, [email protected]; Kamel Djamel Eddine Kerrouche, [email protected]; Ehtisham Lodhi, [email protected]; Mustapha Boualem Kerrouche, [email protected]; Lina Wang, [email protected]; Fenghua Zhu, [email protected] | 1School of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, China. 2Satellit
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