Analysis Results of Output Power Loss Due to the Grid Voltage Rise in Grid-Connected Photovoltaic Power Generation Systems

Ueda, Yoshisuke; Kurokawa, Kosuke; Tanabe, Takayuki; Kitamura, Kiyoyuki; Sugihara, Hiroyuki

doi:10.1109/tie.2008.924447

Cited by 191 publications

(83 citation statements)

References 16 publications

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“…Furthermore, in the linear model, linearization errors should also be taken into account. It is therefore advised to include a small extra conservative margin in the limits of Constraint (2). V min and V max can be chosen to be ± 9% of the nominal voltage, whereas the actual limits equal ±10% of the nominal voltage.…”

Section: Simulated Networkmentioning

confidence: 99%

Locational Pricing to Mitigate Voltage Problems Caused by High PV Penetration

2015

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In this paper, a locational marginal pricing algorithm is proposed to control the voltage in unbalanced distribution grids. The increasing amount of photovoltaic (PV) generation installed in the grid may cause the voltage to rise to unacceptable levels during periods of low consumption. With locational prices, the distribution system operator can steer the reactive power consumption and active power curtailment of PV panels to guarantee a safe network operation. Flexible loads also respond to these prices. A distributed gradient algorithm automatically defines the locational prices that avoid voltage problems. Using these locational prices results in a minimum cost for the distribution operator to control the voltage. Locational prices can differ between the three phases in unbalanced grids. This is caused by a higher consumption or production in one of the phases compared to the other phases and provides the opportunity for arbitrage, where power is transferred from a phase with a low price to a phase with a high price. The effect of arbitrage is analyzed. The proposed algorithm is applied to an existing three-phase four-wire radial grid. Several simulations with realistic data are performed.

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Section: Simulated Networkmentioning

confidence: 99%

Locational Pricing to Mitigate Voltage Problems Caused by High PV Penetration

2015

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“…This quality gives rise to a division of electrical energy storage technologies into categories based on discharge times. These classifications are useful in conceptualizing how many roles energy storage device can play with respect to renewable integration [67].…”

Section: Page 8 Of 11mentioning

confidence: 99%

“…Compared to AC transmission, it has advantages such as lower loss, lower line cost, narrower corridor and rapid power control capabilities [67]. Like AC transmission, DC transmission is also progressing in the direction of ultra-high voltage levels for larger capacity and longer distance power delivery.…”

mentioning

confidence: 99%

Transmission Network Enhancement with Renewable Energy

So¹,

Af²,

Mk³

2014

J Fundam Renewable Energy Appl

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Wind and solar energy play an important role in the de -carbonization of electricity generation. However, high shares of these Variable Renewable Energies (VREs) challenge the power system considerably due to their temporal fluctuations and geographical dispersion. This paper systematically reviews and analyzes transmission grid extensions as an integration measure for VREs. Effects of grid extensions for fundamental properties of the power system as a function of the penetration and mix of wind coupled with solar energy were revealed in the study. The paper also provides an overview of the system implication of wind and solar PV energy and investigates a way to partly overcome transmission grid extensions.

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“…The natural variability of environmental conditions and nonlinear behavior of photovoltaic generators make the utilization of photovoltaic energy a challenging task [1][2][3][4]. The increasing penetration of renewable sources with power-electronic interface in the power systems is raising technical problems in various areas such as power quality control [5][6][7], voltage regulation [8], grid protection coordination [9,10], loss of mains detection [11,12], and generator operation following disturbances on the distribution grid [13][14][15].…”

Section: Open Accessmentioning

confidence: 99%

Transient Analysis of Large Scale PV Systems with Floating DC Section

et al. 2012

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Abstract:The increasing penetration of renewable sources with power-electronic interfaces in power systems is raising technical problems and the overall efficiency of photovoltaic systems can decrease dramatically. In this context, the optimal layout for the photovoltaic system is required. The most adequate strategy to connect the renewable system to the electrical power grid or to supply the end users must be adopted. The present paper proposes a design layout of a PV plant using a DC bus system to improve the overall energy conversion efficiency. An analysis of steady-state system stability, voltage drop and DC cable conduction losses is conducted. The leakage currents to the ground are investigated through simulations. Experimental results are shown focused on the analysis of optimal layout of photovoltaic systems under particular operating conditions.

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Analysis Results of Output Power Loss Due to the Grid Voltage Rise in Grid-Connected Photovoltaic Power Generation Systems

Cited by 191 publications

References 16 publications

Locational Pricing to Mitigate Voltage Problems Caused by High PV Penetration

Locational Pricing to Mitigate Voltage Problems Caused by High PV Penetration

Transmission Network Enhancement with Renewable Energy

Transient Analysis of Large Scale PV Systems with Floating DC Section

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