Reactive power performance analysis of dish–Stirling solar thermal–diesel hybrid energy system

Hussain, Israfil; Das, Dulal Chandra; Sinha, Nidul

doi:10.1049/iet-rpg.2016.0579

Cited by 25 publications

(19 citation statements)

References 35 publications

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“…The overall system dynamics based on single generator-load model 30,32 for the proposed hμG referring Figure 1C could be realised as Equation (23).…”

Section: System Dynamics and Load Modelmentioning

confidence: 99%

“…The most popular classical PID controllers are considered for this study as expressed in Equations (1) and (6), because of their constructional simplicity and performance reliability. The net deviation in apparent power (ΔŜ) of the system is composed of active (P) and reactive (Q) components as in Equation (31), (33) and it is required to be minimised in order to formulate the problem as estimated in Equation (32).…”

Section: Problem Formulationmentioning

confidence: 99%

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Coordinated regulation of voltage and load frequency in demand response supported biorenewable cogeneration‐based isolated hybrid microgrid with quasi‐oppositional selfish herd optimisation

Barik

Das

2019

Int Trans Electr Energ Syst

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Summary This work is the earliest attempt towards coordinated regulation of both frequency and voltage of an isolated multisource‐based hybrid microgrid with demand response support using a modified selfish herd optimisation. It is a maiden effort to propose a 50‐Hz system frequency‐based hybrid microgrid model, utilising biorenewable sustainable energy sources like sunrays, wind, waste waters, and agricultural and domestic wastes, with available support from demand response contributors for a dual objective of waste and power management. The intermittency of these resources due to climatic variations creates a great challenge to meet the timely consumer demands of the microgrid with reliable quality power supply. To overcome these issues, the performances of the proposed system are studied considering different typical Indian‐climatic scenarios round the year with real‐time recorded data. Initially, the system performances are compared proposing a new objective function called integral square of weighted absolute error in order to minimise the net deviation in system apparent power, using six controllers tuned with four‐popular/recent optimisation algorithms and four‐objective functions in MATLAB. Then, the simulation results are analysed for five different extreme scenarios of both source and load variations in the proposed system using a novel quasi‐oppositional selfish herd optimisation and reported adaptive performances with demand response support. Finally, the sensitivity of the proposed system with variation in system inertia and load damping factor are analysed to study the robustness of the proposed system.

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“…The overall system dynamics based on single generator-load model 30,32 for the proposed hμG referring Figure 1C could be realised as Equation (23).…”

Section: System Dynamics and Load Modelmentioning

confidence: 99%

Section: Problem Formulationmentioning

confidence: 99%

Coordinated regulation of voltage and load frequency in demand response supported biorenewable cogeneration‐based isolated hybrid microgrid with quasi‐oppositional selfish herd optimisation

Barik

Das

2019

Int Trans Electr Energ Syst

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“…However, the scale of the conventional grid-connected DS system using squirrel-cage induction generators (SCIGs) is restricted due to the lack of control capability to meet the grid code requirements such as to provide frequency and voltage support. Although frequency support, such as a fixed-speed generation system, could be achieved by changing the working temperature [15], the significant reactive power injected to the grid system can still cause a severe voltage stability problem especially in a weak grid, as has been investigated in works [16,17].…”

Section: Introductionmentioning

confidence: 99%

“…-(3),(16),(27),(29), and (30) with the assumptions p mean = p * mean and τ e = τ e * , is hereafter denoted the TC-ROM.The small-signal model for temperature control design can be obtained by linearizing TC-ROM at an operating point x 0 = [p mean0 T h0 ω m0 ]. The corresponding block diagram of the linearized TC-ROM is shown in…”

mentioning

confidence: 99%

Particle Swarm Optimization-Based Power and Temperature Control Scheme for Grid-Connected DFIG-Based Dish-Stirling Solar-Thermal System

Li¹,

Xiong²,

Su³

et al. 2019

Energies

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Variable-speed operation of a dish-Stirling (DS) concentrated solar-thermal power generating system can achieve higher energy conversion efficiency compared to the conventional fixed-speed operation system. However, tuning of the controllers for the existing control schemes is cumbersome due to the presence of a large number of control parameters. This paper proposes a new control system design approach for the doubly-fed induction generator (DFIG)-based DS system to achieve maximum power point tracking and constant receiver temperature regulation. Based on a developed thermo-electro-pneumatic model, a coordinated torque and mean pressure control scheme is proposed. Through steady-state analysis, the optimal torque is calculated using the measured insolation and it serves as the tracking reference for direct torque control of the DFIG. To minimize the tracking error due to temperature variation and the compressor loss of the hydrogen supply system, four optimal control parameters are determined using particle swarm optimization (PSO). Model-order reduction and the process of the pre-examination of system stability are incorporated into the PSO algorithm, and it effectively reduces the search effort for the best solution to achieve maximum power point tracking and maintain the temperature around the set-point. The results from computational simulations are presented to show the efficacy of the proposed scheme in supplying the grid system with smoothened maximum power generation as the solar irradiance varies.

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“…For reactive power management and voltage control, reactive power is needed to be balanced under all operating conditions .Hence, it is obligatory to have a sufficient capacity of reactive power source to be present in the OGHPS. The earlier works reported in [4][5][6][7][8][9][10] for voltage and reactive power control of the wind diesel hybrid Power System are based on Static VAR Compensator (SVC) and Static synchronous compensator (STATCOM)] with load either static (exponential type) or static plus dynamic. Some good works have been reported, but, the parameters of the SVC/STATCOM controllers were optimized while controller parameters of automatic voltage regulator (AVR) of SG excitation control were fixed, hence cannot assure the efficient co-operative control.…”

Section: Introductionmentioning

confidence: 99%

Optimal controllers design for voltage control in Off-grid hybrid power system

Anantwar¹,

Sundar²,

Laksmikantha³

2019

IJECE

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<p>Generally, for remote places extension of grid is uneconomical and difficult. Off-grid hybrid power systems (OGHPS) has renewable energy sources integrated with conventional sources. OGHPS is very significant as it is the only source of electric supply for remote areas. OGHPS under study has Induction generator (IG) for wind power generation, Photo-Voltaic source with inverter, Synchronous generator (SG) for Diesel Engine (DE) and load. Over-rated PV-inverter has capacity to supply reactive power. SG of DE has Automatic voltage regulator for excitation control to regulate terminal voltage. Load and IG demands reactive power, causes reactive power imbalance hence voltage fluctuations in OGHPS. To manage reactive power for voltage control, two control structures with Proportional–Integral controller(PI), to control inverter reactive power and SG excitation by automatic voltage regulator are incorporated. Improper tuning of controllers lead to oscillatory and sluggish response. Hence in this test system both controllers need to be tune optimally. This paper proposes novel intelligent computing algorithm , Enhanced Bacterial forging algorithm (EBFA) for optimal reactive power controller for voltage control in OGHPS. Small signal model of OGHPS with proposed controller is tested for different disturbances. simulation results are compared with conventional method , proved the effectiveness of EBFA.</p>

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Reactive power performance analysis of dish–Stirling solar thermal–diesel hybrid energy system

Cited by 25 publications

References 35 publications

Coordinated regulation of voltage and load frequency in demand response supported biorenewable cogeneration‐based isolated hybrid microgrid with quasi‐oppositional selfish herd optimisation

Coordinated regulation of voltage and load frequency in demand response supported biorenewable cogeneration‐based isolated hybrid microgrid with quasi‐oppositional selfish herd optimisation

Particle Swarm Optimization-Based Power and Temperature Control Scheme for Grid-Connected DFIG-Based Dish-Stirling Solar-Thermal System

Optimal controllers design for voltage control in Off-grid hybrid power system

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