Review and experimental illustrations of electronic load controller used in standalone Micro-Hydro generating plants

Singh, Rohit; Kumar, B. Anil; Shruthi, D.; Panda, Ramraj; Raj, C. Thanga

doi:10.1016/j.jestch.2018.07.006

Cited by 35 publications

(37 citation statements)

References 96 publications

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“…The Pelton turbine consists of buckets set on a circular disk periphery and one or many nozzles which strike the buckets by water jets. The water flow can be adjusted by a mobile needle inside the nozzle that is usually driven by an electric servo-motor which must be relatively slow to minimize water hammers effect [17].…”

Section: Figure 1 Hydropower Plant Componentsmentioning

confidence: 99%

“…Since the development of MHPP prototypes is costly [12][13][14][15][16][17][18][19][20][21], it has become necessary to develop mathematical models and use computer simulations in order to study the MHPP operation. The rationale behind this is to develop control approaches ensuring the expected performances.…”

Section: Introductionmentioning

confidence: 99%

“…The most suitable turbine for such configuration is the Pelton turbine which is generally used for high waterfalls and can operate over a wide range of water flow level [28]. The flow rate is adjustable by means of a movable needle which moves manually or by an electric servo-motor [17]. On the other hand, the three-phase synchronous generator is more appropriate, for several advantages; it presents a very satisfactory efficiency (close to 99%) and its size is relatively small compared to the generated power [5,29].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

An Integrated Approach for Modeling Three-Phase Micro Hydropower Plants

Hamdaouy¹,

Salhi²,

Doubabi³

et al. 2019

EJEE

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Micro hydropower plants (MHPPs) are often adopted to provide electricity to remote areas. To ensure the generation performance and power quality, the operators must have enough knowledge about the MHPP, especially its physical model. This paper proposes an integrated approach for modelling three-phase MHPPs in off-grid sites. The differential equations about the electrical operations and mechanical behaviors of the generator were fully integrated into our approach. The physical model thus established considers the behavior of different components of the target MHPP, such as the turbine and the generators, and helps to obtain the time-variation of all physical parameters of the MHPP. The validity of the integrated approach was verified through a simulation under three scenarios. Our research makes it possible to develop a physical model suitable for single and/or three-phase loads. The model can be easily adapted to any real configuration of hydropower plant.

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Section: Figure 1 Hydropower Plant Componentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

An Integrated Approach for Modeling Three-Phase Micro Hydropower Plants

Hamdaouy¹,

Salhi²,

Doubabi³

et al. 2019

EJEE

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“…Time taken for the one complete cycle is around 20msec. Applications of RC is power measurement, switchboards, thyristors, switching measurements, control signal display [11][12][13].…”

Section: Problem Descriptionmentioning

confidence: 99%

Design of rogowski coil to measure the power frequency alternating current

Indragandhi²,

R³

et al. 2018

IJET

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For the growth of high voltage transmission power cables, it is necessary to calculate the current and voltage values. Current Transformers (CT) are used to convert the larger current values into smaller values. CT develop the convenient way of measurement in an alternating current transmission line. If CT becomes saturated then secondary current in a CT gets distorted because of a larger primary current. This distorted secondary current leads to a malfunction in the measurement side. So, detection and correction of the distorted current caused by the saturated CT becomes essential. To avoid these problems, we can use Rogowski Coil (RC) to measure the alternating current.RC is a toroidal coil used for measuring alternating current without touching the conductor. A RC is an evenly wound coil of N turns per meter on a nonmagnetic core of constant cross-sectional area A. Normally an alternating current produces a magnetic field when current flows through a conductor. RC is used to sense the magnetic field and rise to an induced voltage within the coil which is proportional to the rate of change of the current being measured. This RC current measurement is based on adopted reconstruction methods. In this paper, use two reconstructions methods to measure the alternating current. They are Analog integrator and Numerical Differentiation (ND). These reconstruction methods providing accurate as well as reduced time for correctly tracking the measured current.

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“…The severity of the fault depends upon the sensitivity of adopted control system. Many literatures discuss concepts of dump load in view of achieving stable operation but very few have focused on the protection regarding various power quality disturbances and sensor faults [6]- [8]. FDI and identification of faulty sensors are considered for improving redundancy of the system.…”

Section: Fault Detection and Isolationmentioning

confidence: 99%

Reduced Dump Load Strategy with FDI using FSS in Micro-Hydel Generating Systems

et al. 2018

Self Cite

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Micro-hydel plants are used in micro-grid or off-grid areas where there is an adequate availability of hydro potential. In general, micro-hydel systems are embedded with synchronous or asynchronous generator based electronic load controller (ELC) to have better frequency stability. Conventional ELC operate the generator with full load capacity regulating the generator output voltage and frequency. The conventional controller has a demerit of less efficiently. This paper presents a reduced dump load strategy (RDLS) with fault detection and isolation (FDI) for reliable operation of micro-hydro generators. Proposed strategy protects the system from load disturbances and isolates the system during line fault and sensor fault. Reduced dump load strategy with FDI enhances the machine’s lifespan and protects the system from catastrophic failure. Practical implementation of developed reduced dump load strategy using Full Spectrum Simulator (FSS) with 3 HP generator is presented in this paper. The presented methodology includes coding based FSS for controlling the dump load and switching operation.

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Review and experimental illustrations of electronic load controller used in standalone Micro-Hydro generating plants

Cited by 35 publications

References 96 publications

An Integrated Approach for Modeling Three-Phase Micro Hydropower Plants

An Integrated Approach for Modeling Three-Phase Micro Hydropower Plants

Design of rogowski coil to measure the power frequency alternating current

Reduced Dump Load Strategy with FDI using FSS in Micro-Hydel Generating Systems

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