Allocation of Centralized Energy Storage System and Its Effect on Daily Grid Energy Generation Cost

Mohammadi, Farshad; Gholami, Hassan; Gharehpetian, Gevork B.; Hosseinian, Seyed Hossein

doi:10.1109/tpwrs.2016.2613178

Cited by 37 publications

(15 citation statements)

References 10 publications

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“…The premise of the power saving optimization operation for air conditioning units is that the cooling capacity from chilled water to the air through the surface cooler heat transfer meets the dynamic changes in the indoor cooling load demand. Therefore, a dynamic model of the air conditioning unit surface was established . The heat transfer capacity of the surface cooler under different operating conditions is an important constraint of the power saving operation of the fan and chilled water pump.…”

Section: Power Saving Optimization Methods Of Central Air Conditioningmentioning

confidence: 99%

Optimization analysis on the effect of operational power consumption for central air conditioning under cold storage regulation

Jiao

2019

Int Trans Electr Energ Syst

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Summary Owing to the large power consumption and poor indoor comfort of central air conditioning, controlling the central air conditioning for cool storage and analyzing the power saving optimization of the central air conditioning operation have become necessary. Therefore, a method of power saving optimization analysis based on an improved ant colony air conditioning system is proposed to solve the problem of power consumption. According to the characteristics of cold storage operation regulation, the power consumption of chilled water pumps and air conditioning fans were used to establish a model, and the influence of cold storage operation regulation on central air conditioning operation power consumption was analyzed. On this basis, the improved ant colony is used to optimize the power saving path, according to the factors affecting the power consumption of central air conditioning operation above, and the optimal operation of air conditioning and storage regulation was analyzed, and the power saving treatment of central air conditioning operation was completed. The experimental results show that when the method is adopted, power consumption can be reduced by 67 560 kWh for the entire year, the total consumption of the optimal working point is approximately 0.384 kW, and the power saving effect is better with certain advantages.

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Section: Power Saving Optimization Methods Of Central Air Conditioningmentioning

confidence: 99%

Optimization analysis on the effect of operational power consumption for central air conditioning under cold storage regulation

Jiao

2019

Int Trans Electr Energ Syst

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“…The BESS SOC updates is given in (14) where SOC(t) and P c,d (t) are the SOC and charging/discharging power of the BESS at sampling time t, respectively. η, ρ, and Q bat are energy decay rate, round-trip efficiency, capacity of the BESS and τ is the sampling time-interval.…”

Section: Bess Modelmentioning

confidence: 99%

“…Recently, photovoltaic (PV) generators [12] are installed in the distribution system, which are interfaced with battery energy storage system (BESS) [13]. The main purpose of BESS is to purchase and store low price energy during offpeak times (charging state) and utilize it during peak times when the energy price is high (discharging state) [14]. For example, [15] and [16] use BESS to perform peak load shaving which provides direct and indirect benefits such as cost and/or energy savings and voltage support.…”

Section: Introductionmentioning

confidence: 99%

Conservation Voltage Reduction by Coordinating Legacy Devices, Smart Inverters and Battery

Ostadijafari

Jha

Dubey

2019

2019 North American Power Symposium (NAPS)

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Due to market, there is flexibility in the price for power purchase by the utility. At the maximum loading condition the cost of power is high, hence conservation voltage reduction (CVR) is a useful technique in reducing power demand of the distribution system. Further, by installing battery energy storage system (BESS) in the distribution system, power can be stored in the BESS when the price is low and can be utilize to supply the demand when the price is high. In this paper, power conserving and cost saving problems are investigated. As we consider loads in distribution system as voltage dependent loads, the CVR objective is obtained by optimizing the nodal voltages of a feeder towards the lower limit of the ANSI value using legacy devices and smart inverter. In order to solve introduced problems, a MPC-based algorithm is proposed for optimal usage of future information prediction such as load energy consumption profile, PVs generation profiles and TOU electricity tariffs. Moreover, effect of depreciation cost of the BESS is in cost saving is investigated. The proposed method is validated using IEEE-123 node system. It is demonstrated form the results that the proposed method is able to reduce the power consumption and cost of purchased power from substation.

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“…However, intermittent renewable energy causes significant issues on power system operations such as demand-generation balance, voltage/frequency stability and operational planning in electricity markets [2,[4][5][6]. Energy Storage Systems (ESSs) can play a significant role in mitigating the issues highlighted above, and improve the dynamic response of the system [7,8].…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, ESS can increase power quality and reliability, meeting demand during peak hours, facilitating control of energy imbalance charges and reducing losses [7]. There are numerous ESS technologies such as fuel cells, compressed air, pumped hydro, hydrogen, flywheel, cryogenic, and superconducting magnetic storage technologies [1,5,9].…”

Section: Introductionmentioning

confidence: 99%

Battery SOC management strategy for enhanced frequency response and day-ahead energy scheduling of BESS for energy arbitrage

Gundogdu

Gladwin

Stone

2017

IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society

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The electricity system has to balance demand and supply every second, a task that is becoming evermore challenging due to the increased penetration of renewable energy sources and subsequent inertial levels. In the UK, a number of grid frequency support services are available, which are developed to provide a real-time response to changes in the grid frequency. The National Grid Electricity Transmission (NGET)the primary electricity transmission network operator in the UKhas introduced a new faster frequency response service, called the Enhanced Frequency Response (EFR), which requires a response time of under one second. Battery energy storage systems (BESSs) are ideal choice for delivering such a service. In this paper a control algorithm is presented which supplies a charge/discharge power output with respect to deviations in the grid frequency and the ramp-rate limits imposed by NGET, whilst managing the state-of-charge (SOC) of the BESS to maximise the utilisation of the available energy capacity. Using the real UK market clearing prices, a forecasted battery state of charge (SOC) management strategy has been also developed to deliver EFR service whilst scheduling throughout the day for energy arbitrage. Simulation results demonstrate that the proposed algorithm delivers an EFR service within the specification whilst generating arbitrage revenue. A comparative study is also presented to compare the yearly arbitrage revenue obtained from the model of the Willenhall and an experimental Leighton Buzzard battery storage system. Simulation results on a 2MW/1MWh lithium-titanate BESS are provided to verify the proposed algorithm based on the control of an experimentally validated battery model.

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Allocation of Centralized Energy Storage System and Its Effect on Daily Grid Energy Generation Cost

Cited by 37 publications

References 10 publications

Optimization analysis on the effect of operational power consumption for central air conditioning under cold storage regulation

Optimization analysis on the effect of operational power consumption for central air conditioning under cold storage regulation

Conservation Voltage Reduction by Coordinating Legacy Devices, Smart Inverters and Battery

Battery SOC management strategy for enhanced frequency response and day-ahead energy scheduling of BESS for energy arbitrage

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