Impact of capacity value of renewable energy resources on RAPS system energy management

Tan, Yingjie; Muttaqi, Kashem M.; Meegahapola, Lasantha

doi:10.1049/cp.2013.1797

Cited by 9 publications

(7 citation statements)

References 11 publications

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“…Rated capacity and Forced Outage Rate (FOR) are two key parameters of a conventional generator. The capacity value of a diesel generator is calculated in (3) [25]:…”

Section: Diesel Generatorsmentioning

confidence: 99%

“…The residual power of a microgrid is equal to the difference between the microgrid's generation and its load. The formula for calculating the residual power is presented in Equation (24) and an example of its calculations for 16:00 is stated in Equation (25). The LOLP, which is one of the most important reliability indices, is assumed to be equal to a specific value every hour.…”

Section: Determining the Capacity Value Of The Microgridmentioning

confidence: 99%

“…In various papers, the impact of the capacity value of renewable energy resources has been evaluated on the energy management of power systems. In these systems, by using storages and renewable energy resources, the power systems can supply demand while achieving a higher reliability [25]. In [26], using storages in order to improve reliability in microgrids has been studied in a probabilistic manner.…”

Section: Introductionmentioning

confidence: 99%

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Modelling of microgrids to insure resource adequacy in the capacity market

Katiraee

Jalili

2023

IET Renewable Power Gen

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The penetration of renewable resources in distribution networks have led to the creation of a concept called microgrids. Microgrids act as a bus with the ability to control the amount of consumption and generation, from the viewpoint of system operator. If the amount of capacity that can be provided by microgrids is known, they can be effective in providing resource adequacy and the required capacity of the network. This paper contains two contributions. Modelling of capacity value of a microgrid that includes wind turbines, photovoltaic, non‐renewable generators, loads and batteries is the first innovation of this paper. Here, a capacity value model for microgrids is created for the first time. The application of microgrid capacity value model to a long‐term issue, such as ensuring resource adequacy in the capacity market, constitutes the second innovation of this paper. Consequently, there are two distinct innovations in this work. The presence of microgrids in the capacity market has increased competition and reduced costs, and on the other hand, it will help the microgrids development through their long‐term generation revenues. The proposed method has been tested on IEEE 57‐bus test system. Results have shown the efficiency of using microgrids in the capacity market.

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“…Rated capacity and Forced Outage Rate (FOR) are two key parameters of a conventional generator. The capacity value of a diesel generator is calculated in (3) [25]:…”

Section: Diesel Generatorsmentioning

confidence: 99%

Section: Determining the Capacity Value Of The Microgridmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Modelling of microgrids to insure resource adequacy in the capacity market

Katiraee

Jalili

2023

IET Renewable Power Gen

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“…The LOLE is the average number of hours for which the load is expected to exceed the available capacity while the LOEE is defined as the expected energy that will not be supplied when the load exceeds the available generation. In [54], based on the reliability metric of LOLE, capacity value is defined as the additional load that a system can serve by adding a new generator while maintaining the same system reliability level. Capacity value can be denoted as effective load carrying capability (ELCC).The authors also suggest utilisation of storage system in a RAPS system decreases the LOLE value or increases the energy supply reliability level as shown in Fig.…”

Section: Reliability Estimation Techniquesmentioning

confidence: 99%

A review of technical challenges in planning and operation of remote area power supply systems

Tan

Meegahapola

Muttaqi

2014

Renewable and Sustainable Energy Reviews

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“…The diesel generator has a capacity of 275 kVA and PV generator is rated at 100 kW under STC. The size of the system components can be determined using the approach used in [16]. The component sizing is processed in an iterative manner until the system reliability denoted by loss of load expectation (LOLE) meets designated level.…”

Section: Case Studiesmentioning

confidence: 99%

Suboptimal MPPT control for power management in PV-diesel remote area power supply systems

Tan

Meegahapola

Muttaqi

2014

2014 IEEE Industry Application Society Annual Meeting

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Maximum power point tracking (MPPT) is commonly being used in solar-photovoltaic (PV) power generation systems to maximise solar energy extraction. In this paper it is proposed to operate the solar-PV system at the suboptimal MPPT to manage power balance in a remote area power supply (RAPS) system. This is performed based on three different operating modes: 1) Frequency control mode; 2) Active power control mode; 3) MPPT control mode. The operating modes are decided based on the load level and the operating mode of the diesel generator (i.e. synchronous condenser mode or generator mode). This power management strategy balances the generation and load demand that requires transition between the three operating modes without using the dummy load. The proposed strategy is capable of extending the diesel generator life time and improves the operating efficiency of the diesel generator. Simulation studies are carried out to validate the effectiveness of the suboptimal MPPT control strategy in a PV-Diesel RAPS system, and have shown that the proposed strategy can seamlessly maintain power balance in the RAPS system while maintaining the voltage and frequency within stipulated limits. Substantial cost savings can also be achieved in long run due to the life time extension and efficiency improvement of the diesel generator. Abstract-Maximum power point tracking (MPPT) is commonly being used in solar-photovoltaic (PV) power generation systems to maximise solar energy extraction. In this paper it is proposed to operate the solar-PV system at the suboptimal MPPT to manage power balance in a remote area power supply (RAPS) system. This is performed based on three different operating modes: 1) Frequency control mode; 2) Active power control mode; 3) MPPT control mode. The operating modes are decided based on the load level and the operating mode of the diesel generator (i.e. synchronous condenser mode or generator mode). This power management strategy balances the generation and load demand that requires transition between the three operating modes without using the dummy load. The proposed strategy is capable of extending the diesel generator life time and improves the operating efficiency of the diesel generator. Simulation studies are carried out to validate the effectiveness of the suboptimal MPPT control strategy in a PV-Diesel RAPS system, and have shown that the proposed strategy can seamlessly maintain power balance in the RAPS system while maintaining the voltage and frequency within stipulated limits. Substantial cost savings can also be achieved in long run due to the life time extension and efficiency improvement of the diesel generator.Index Terms-Diesel generator, frequency control, maximum power point tracking (MPPT), photovotaic (PV), power management, remote area power supply (RAPS) system, voltage control.

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Impact of capacity value of renewable energy resources on RAPS system energy management

Cited by 9 publications

References 11 publications

Modelling of microgrids to insure resource adequacy in the capacity market

Modelling of microgrids to insure resource adequacy in the capacity market

A review of technical challenges in planning and operation of remote area power supply systems

Suboptimal MPPT control for power management in PV-diesel remote area power supply systems

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