power stabilization Articles
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Transient stability improvement by optimally located STATCOMs employing genetic algorithm
This paper deals with determining the optimal location of single and multiple Static Synchronous Compensators (STATCOMs) for a long transmission line with predefined direction of real power flow so that maximum improvement in its transient stability performance is achieved. A systematic procedure is proposed to determine the optimal location of a STATCOM employing Genetic Algorithm (GA). The ...
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Speed control with maximum power transfer property of induction motors based on I/O linearisation
This paper discusses the power transfer from the stator part to the rotor part of an induction motor and then summarises the maximum transfer property as a result. On the other hand, this paper also designs a speed controller which is developed under a special non-linear coordinate transform with maximum power transfer property such that the speed control objective can be fulfiled. Besides, this ...
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Damping power system oscillations by genetically optimised PSS and TCSC controller
This paper presents a procedure for modelling and simultaneous tuning of parameters of Thyristor Controlled Series Compensator (TCSC) controller and Power System Stabiliser (PSS) in a power system to damp power system oscillations. First, a simple transfer function model of TCSC controller is developed and the parameters of TCSC and PSS are simultaneously optimised. Genetic Algorithm (GA) is ...
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The impact of the protection scheme of converter-connected distributed generation on power system transient stability
In this paper the impact of the protection scheme of converter-connected (power electronic-interfaced) Distributed Generation (DG) on power system transient stability is investigated. Two simulation setups are used for this purpose. In the first setup, a small/simple test system is used and the converter-connected DG is modelled as a practical three-phase full-bridge Voltage Source Converter ...
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Fuzzy-based Static Synchronous Compensator (STATCOM) for improving transient stability performance
The main aim of the paper is to design a fuzzy-based STATCOM for power-system damping. The proposed controllers are designed to coordinate two control inputs ? the voltage of the STATCOM location and the capacitor voltage of the STATCOM ? to improve the transient stability of a Single-Machine Infinite Bus (SMIB) system and short-scale multi-machine system. The two different STATCOM controllers, ...
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On methodology for modelling wind power impact on power systems
There is a continuous discussion going on concerning the integration cost of wind power. The integration cost can, for example, be defined as the extra costs in the rest of the system when wind power is introduced, compared with the situation without wind power. The result of the studies depends on both parameters and the method used. The aim of this paper is to structure the methods in order to ...
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Analysis and design of controlled capacitor charging type power frequency inverter
This paper presents the performance of the capacitor charging type inverters. The inverter uses the voltage and current feedback and produces a desired voltage at the output by suitably charging/discharging a capacitor. An inductor is connected in series to limit the charging/discharging current. Both single and three phase inverters are considered. A small signal analysis is presented to ...
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A modern MPPT control algorithm based on α–MPP pass–through detection and β–acceleration mechanism
A modern maximum power point tracking (MPPT) method based on the incremental conductance (IncCond) control algorithm is discussed. This method features a variable step iteration of duty ratio to get over the trade–off between dynamic performance and steady state oscillation around maximum power point (MPP). Moreover, in the aim to get an excellent precision and a swift response independently of ...
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Optimal design of power system stabiliser using a new cost function and PSO algorithm
In power system, the application of the power system stabiliser (PSS) has been proved to overcome the stability of power system. It is necessary to determine the appropriate PSS parameters. In this paper, a new cost function is presented for the tuning of PSS parameters. Optimisation of PSS parameters has been done by particle swarm optimisation algorithm. The power plant system that is simulated ...
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Optimal generation expansion planning considering maximum loadability limit
This paper describes a new approach to generation expansion planning (GEP) problem to optimise simultaneously multiple objectives such as cost and stability margin. It is formulated as a combinational optimisation problem in order to determine the type and capacity of the new generations as well as their timing and placement. This study presents a comprehensive model of hierarchical optimisation ...
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Efficiency improvement of a photovoltaic system by acting on the characteristics of MPPT control
A 360 W photovoltaic (PV) module power with a maximum power point tracking (MPPT) algorithm is analysed and presented. In this study, the control algorithm is improved and then applied to the PV system. The results obtained show the ability of this algorithm to control high powers when weather conditions are changing. Under the same conditions, this improved technique offers, in steady state ...
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Improved genetic algorithm for voltage security constrained optimal power flow problem
Voltage stability has become an important issue in the planning and operation of many power systems. Contingencies such as unexpected line outages in a stressed system may often result in voltage instability which may lead to voltage collapse. This paper presents a Genetic Algorithm (GA) approach for solving the Voltage Security Constrained Optimal Power Flow (VSC-OPF) problem. Base-case ...
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A combined multipulse-multilevel inverter based STATCOM for improving the voltage profile and transient stability of power system
In this paper, a new combined multipulse-multilevel inverter topology is proposed for static synchronous compensator to regulate AC supply voltage at a constant level. A detailed analysis of the operating characteristics of the various inverter topologies in respect of total harmonic distortion (THD) and device count are compared in the paper. A closed loop decoupled control strategy for ...
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Top Tips: How to Reduce Energy Consumption in the Lab with Froilabo’s ULT Energy Efficient Freezers
Energy Saving Practices for your Laboratory FreezerWith the dramatic rise in energy prices, laboratories across the globe are looking at ways to reduce energy consumption and save money.Energy saving practices with energy saving freezers: as we all attempt to make energy reductions, we’ve put together some handy top tips to help you reduce your energy consumption in the laboratory. Combined with ...
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Stabilisation of grid connected wind farms using doubly–fed induction generators with FACTS controllers
The impact of the wind generation on the power systems is no longer negligible if high penetration levels are going to be achieved. It is very important to boost the transfer capability of the transmission system while improving the utilisation of transmission assets to accommodate high penetration of wind power on the network. Hence, more sophisticated control schemes using advanced power ...
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Clarke Energy and INNIO Delivering Flexible Generation to Nova Power & Gas in Romania - Case Study
Clarke Energy supplies Nova Power & Gases’ gas-fuelled peaking station with four INNIO Jenbacher J620 gas engines. The project will improve efficiency and stability of power to the Reif Industrial Park. Construction is ongoing at power plant located in Campia Turzii, Cluj County. Bucharest, Romania - April 2021 - Construction is progressing in Campia Turzi, where Clarke Energy ...
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Wind energy and system security – the grid connection moratorium in Ireland
This examines the interaction between technical challenges and policy choices that are made regarding wind power, and uses the grid connection moratorium in Ireland as a case study. While total installed wind capacity in Ireland is low compared with Germany, Spain and Denmark, wind power penetration is higher in the Irish system than in either the British, UCTE or NORDEL systems. In December 2003 ...
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Torsional interaction studies on a power system compensated by PSO optimised static synchronous series compensator
In this paper, particle swarm optimisation (PSO) is used to optimise the PI controller parameters of the d.c. link voltage controller of a 48 pulse static synchronous series compensator (SSSC). The optimised controller improves the torsional performance of the SSSC compensated power system. High gain of power system stabilisers (PSS) can adversely affect the torsional performance of an SSSC ...
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Meaning and role of reactive power quadrants in electric meter
The reactive power quadrants in electric meter refer to dividing a plane coordinate system into four regions, with the horizontal axis representing reactive power and the vertical axis representing active power. Each region represents a different combination of reactive power and active power states. These four regions are known as quadrants I, II, III, and IV, each with its own meaning and ...
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Voltage Stabilizer - Buy Voltage Stabilizers Online at Lowest Prices in India
All of us know what voltage fluctuations can do to electrical appliances like air conditioners, refrigerators, televisions etc. Voltage Stabilizers are designed specifically for this purpose. Voltage Stabilizers regulate voltage and provide constant voltage to your expensive appliances. They prevent permanent damage to appliances caused because of high or low voltage. Choose from a wide ...
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