Presence Of FACTS Devices Research Articles

Simultaneous analysis of frequency and voltage control of the interconnected hybrid power system in presence of FACTS devices and demand response scheme

This work confers the simultaneous analysis of voltage and frequency control of the 3-area interconnected hybrid power system (IHPS) consisting of parabolic-trough solar power system (PSP), wind power system (WPS) and dish-stirling solar power system (DSP) under the paradigm of microgrid. The speculated result of the IHPS is presented and analyzed considering real and reactive power as the function of both voltage and frequency. 9The proposed IHPS under investigation has been mathematically modeled for direct coupling like active power–frequency and reactive power–voltage relationships and cross coupling like active power–voltage and reactive power–frequency​ relationships. The system responses under different operating conditions have been investigated to see the cross-coupling behavior of the proposed IHPS in the presence of voltage compensating devices like dynamic voltage restorer (DVR) and Static Synchronous Compensator (STATCOM). Further, Demand Response Scheme (DRS) as a frequency control strategy has been considered to enhance the system stability. System responses have been critically analyzed under Mine Blast Algorithm (MBA) based proportional–integral–derivative (PID) controllers

Wavelet Based Power Quality Assessment of Wind Energy Source Integrated 5-Bus System under Sudden Load Conditions In Presence of FACTS Devices

The structure, operation, and planning of electric power networks will undergo considerable and rapid changes due to increased global energy consumption. The requirement of renewable energy sources due to the increase of electrical demand. This paper presents wind energy integration with electrical grid under impact on sudden load conditions. To fill the demand and supply gap requires reactive power. To compensate reactive power more prominent devices are needed. The Static Synchronous Series Compensator (SSSC), Static Synchronous Compensator (STATCOM) and Unified power flow controller (UPFC) are the members of the Flexible AC Transmission system family having very attractive features of series and shunt reactive power compensating devices. The proposed research work is carried by wavelet multi resolution analysis using Bior1.5 mother wavelet under Power Quality issue of sudden load 150MW is introduced at bus-3, which can be compensated by a wind energy source and FACTS devices. The analysis of 5-bus network model of sudden load impact is tested and observed that the effectiveness of the system with Wind Energy source integration in presence of SSSC, STATCOM &UPFC.

Dynamic Voltage Stability Analysis of Port Harcourt Network in the Presence of Facts Devices

Dynamic Voltage Stability Analysis of Port Harcourt Network in the Presence of Facts Devices

A non-dominated Sorting Hybrid Cuckoo Search Algorithm for multi-objective optimization in the presence of FACTS devices

In this paper, a proposed Non-dominated Sorting Hybrid Cuckoo Search Algorithm (NSHCSA) for multi objective optimal power flow problem with FACTS devices namely Thyristor Controlled Series Compensator (TCSC) and Static Synchronous Series Compensator (SSSC) with different objective functions including the installation cost of FACTS devices are presented. The practical and operating constraints are considered for this analysis. The location of the FACTS device is selected to enhance the system security with respect to minimizing line overloads and bus voltage violations. The proposed Hybrid Cuckoo Search Algorithm (HCSA) is the combination of Cuckoo Search Algorithm (CSA) and Genetic Algorithm (GA). For multi objectives selected Pareto front is obtained by using the fuzzy decision making tool. The effectiveness of the proposed method is tested on standard IEEE-30 bus test system in the presence of the TCSC and SSSC. The results are analyzed and compared with existing methods.

A New Adaptive Impedance-Based LOE Protection of Synchronous Generator in the Presence of STATCOM

This paper presents a new adaptive distance function for loss of excitation (LOE) protection of synchronous generator in the presence of STATCOM. Nowadays, the Berdy distance function is most widely utilized as the main protection for LOE fault. However, the presence of FACTS devices has adverse impacts on the operation of this function. FACTS devices cause LOE protection function to underreach. Also, these devices cause a substantial delay on the performance of the distance LOE function. Consequently, due to the operational characteristic of the LOE distance protection function, a new adaptive method is proposed to remove STATCOM effects. The proposed scheme compensates theses undesirable effects on calculated apparent impedance by unsynchronized measurements at STATCOM terminals. In this method only, the Thevenin model parameters at STATCOM terminals are required to send the relay location via communication channel. The simulation results demonstrate that the proposed modified method enhances speed, security, and sensitivity of the LOE distance function when STATCOM is in service.

Genetic Algorithm Based Optimum Reactive Power Dispatch for Voltage stability Enhancement in the Presence of FACTS devices

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