Design of a Microcontroller Based Electronic Load Controller for a Self Excited Induction Generator Supplying Single-Phase Loads

Gao, Sarsing; Murthy, S. Srinivasa; Bhuvaneswari, G.; Gayathri, M.

doi:10.6113/jpe.2010.10.4.444

Cited by 21 publications

(6 citation statements)

References 12 publications

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“…change the configuration of the electronic topology to minimize the line distortion in SHMPP [14]. With the development of power electronics, new topologies were introduced for SMHHP based ELC system, e.g., TRIAC based regulators [15][16][17][18][19][20][21][22], Rectifier control based Silicon controlled Rectifier (SCR) [23][24][25][26], and insulated gate bipolar resistor (IGBT) based uncontrolled rectifier [27]. Also IGBTs with different configurations based on number of legs were also introduced for MHPP based ELCs e.g.…”

Section: Voltage and Frequency Control Of Standalone Mhppmentioning

confidence: 99%

“…Selfexcited induction generators (SEIG) were initially employed to their robustness, reliability, and cost-effectiveness. Many control schemes were presented to regulate the frequency and voltage of SEIG; for example, an analog control scheme was proposed in [12], digital signal processor (DSP) based ELCs in [34,35], the current control scheme in [15], a feedforward control scheme for ELC in [25,36,37], and P, PI, and PID based control schemes in [38][39][40][41][42]. For MHPPs using asynchronous generators, a PI-based frequency and voltage control technique is proposed in [31,43,44], PI-based power control technique is proposed in [30,33], deadbeat control schemes in [45], PLL based integrated ELC in [46][47][48] and optimization-based control methods in [49][50][51].…”

Section: Voltage and Frequency Control Of Standalone Mhppmentioning

confidence: 99%

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Control Methods for Standalone and Grid Connected Micro-Hydro Power Plants With Synthetic Inertia Frequency Support: A Comprehensive Review

et al. 2020

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The penetration of renewable energy sources on a large scale in conventional electric networks increases exponentially for environmental preservation. However, the increase in RESs leads to some technical problems that include (a) fluctuations in power production, (b) less or no generation units for power balancing, (c) reduced inertia due to RESs decoupling from the conventional grid using converters. Micro-hydro power plants (MHPPs) are emerging as a mature balancing technology and a great alternative to large hydropower plants as they encounter population displacement and many environmental problems. Modern pump storage MHPPs uses a power converter between the grid and machine to control the consumption of power during pumping mode. This power electronic interface loses the ability of the rotating mass of the machine to contribute to the grid inertia by making it independent of the grid frequency. This problem is solved through the control of power converters in such a way that the inertia effect is synthesized termed as synthetic inertia. MHPPs can also be operated in a standalone mode where they are not connected to the grid. This paper reviews control schemes applied in literature for the frequency, voltage, and inertia control, in both the grid-connected and standalone modes. This study starts with the standalone MHPPs, covering the literature review and control structure for voltage and frequency control of standalone MHPPs. Then it presents a detailed operation, control principle, synthetic inertia concepts, and architecture of grid-connected MHPPs. The mathematical formulation of the grid, permanent magnet synchronous generator, synthetic inertia inclusion, and control structures, including direct torque control, virtual synchronous machine, and model predictive control, is also presented. Finally, the paper presents the concluding remarks with the comparative analysis of various control structures to include synthetic inertia, its suitability, and future scope for MHPPs.

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Section: Voltage and Frequency Control Of Standalone Mhppmentioning

confidence: 99%

Section: Voltage and Frequency Control Of Standalone Mhppmentioning

confidence: 99%

Control Methods for Standalone and Grid Connected Micro-Hydro Power Plants With Synthetic Inertia Frequency Support: A Comprehensive Review

et al. 2020

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“…There are many different controllers proposed in the literature. Different types of load controllers for frequency regulation in a SEIG-based generation system are discussed in [11][12][13][14][15]. If there are non-linear loads, then the harmonic currents flow in the distribution lines and in the generator windings.…”

Section: Introductionmentioning

confidence: 99%

Reduced converter topology for integrated wind and small‐hydro energy generation system

Singh¹,

Bhalla²

2015

IET Renewable Power Generation

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This study presents a robust and cost-effective microgrid topology for integrating two commonly available wind and small-hydro renewable energy sources. The proposed topology has two generators, one of them is self-excited squirrel cage induction generator driven by a small-hydro turbine and other one is permanent magnet brushless DC generator driven by a small-scale wind turbine. The proposed system is integrated using a voltage source converter and a boost converter which are maintaining voltage and frequency, mitigating power quality problems and performing mechanical sensorless maximum power point tracking, respectively. A battery bank is also used to balance the load and supply power mismatch and to ensure the supply for critical loads. The proposed control algorithm is tested and verified on a developed laboratory prototype of the system. Test results verify that voltage and frequency of the system are regulated and the power-quality-related issues are also resolved in this microgrid.

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“…In this paper, Mamdani's max-min inference scheme is applied to get an implied fuzzy set of tuning rules. Finally, centroid method is used to defuzzify the implied control signals [14][15][16]. Figure 4 explains the control scheme with FLC for ELC.…”

Section: Fuzzy Logic Controlmentioning

confidence: 99%

Comparative Analysis of Fuzzy Logic and PI Controller Based Electronic Load Controller for Self-Excited Induction Generator

Mishra¹,

Tiwari²

2017

Advances in Electrical Engineering

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Rural areas suffer from limited grid connectivity. Small hydroplants can provide electricity at a cheap cost with low environmental impact in these regions. Self-excited induction generators are widely used in hydroplants since they operate on a standalone basis because of the connection of capacitor bank that provides reactive power at no load. However, SEIGs suffer from poor voltage and frequency regulation. Thus, an electronic load controller (ELC) is connected across SEIG to regulate voltage and frequency. Generally, the control scheme for an ELC circuit is based on the conventional proportional integral control, which is easy to implement and performs well under linear load conditions. However, PI controllers handle nonlinearity poorly. This paper presents a fuzzy logic control (FLC) based control scheme for ELC in a constant power generation system (SEIG). The control scheme is designed and simulated in MATLAB under both linear and nonlinear load conditions. A comparison of both the controllers is conducted which highlights the superiority of the fuzzy logic control scheme.

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Design of a Microcontroller Based Electronic Load Controller for a Self Excited Induction Generator Supplying Single-Phase Loads

Cited by 21 publications

References 12 publications

Control Methods for Standalone and Grid Connected Micro-Hydro Power Plants With Synthetic Inertia Frequency Support: A Comprehensive Review

Control Methods for Standalone and Grid Connected Micro-Hydro Power Plants With Synthetic Inertia Frequency Support: A Comprehensive Review

Reduced converter topology for integrated wind and small‐hydro energy generation system

Comparative Analysis of Fuzzy Logic and PI Controller Based Electronic Load Controller for Self-Excited Induction Generator

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