Development of long cycle life valve-regulated lead-acid battery for large-scale battery energy storage system to utilize renewable energy

Sano, Shinichi; Ito, Yoshiaki; Hirose, Yujiro; Takeuchi, Hisaki; Aone, Shigeo

doi:10.1109/intlec.2015.7572367

Cited by 7 publications

(2 citation statements)

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“…При стабілізації потужності вихідна потужність СЕС є постійною, що сприяє балансуванню енергосистеми на всьому інтервалі часу, однак при цьому акумуляторна батарея використовується інтенсивніше, а її строк служби скорочується [25], тоді як при балансуванні тільки енергії миттєва потужність СЕС є нестабільною, але при цьому подовжується строк служби акумулятора [26].…”

Section: вибір типу та параметрів акумуляторної батареїunclassified

Solar Power Plant Storage System

Lukianov

Verbytskyi

Blinov

2021

Microsyst., Electron. & Acoust.

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The article analyzes changes in the legislation on the rules of electricity generation from renewable sources and the introduction of penalties for imbalances, which encourages producers to improve the forecast of electricity generation and modernization of existing power plants by installing energy storage systems. Possible connection points and charge/discharge device (CDD) converter topologies for an energy storage system are analyzed and the converter that meets technical requirements of the system are selected. As a result, the connection from the direct current side has a number of advantages: simpler CDD structure and control principle, in comparison with alternating current; no galvanic separation between input and output. Converter analysis showed, that due to a high operating voltage, usage of resonant topologies is undesirable and the absence of galvanic separation makes bridge converter usage impractical. Therefore, to solve this problem, a bidirectional converter without galvanic separation with hard switching is proposed. To reduce the level of dynamic and static losses, it is advisable to use a modular topology converter with alternating phases. The operating modes of such a converter at a given error of the weather forecast are analyzed. To improve quality of the generated electricity, it is expedient to use a power stabilization mode. Due to the higher values of charge/discharge currents, as well as higher energy density compared to acid-lead, a lithium-ion battery was chosen. According to the selected operation mode, its minimum capacity was calculated. When using a minimum battery capacity, due to the difference between the maximum discharge and charge current of the battery, a mode of partial power stabilization is possible. This mode is used only when the forecast error is more than 52% in the charging mode. A charge/discharge device were designed for a 50 kW SMA Sunny Tripower CORE1 inverter and 20*315W LP156*156-M-60 solar panels connected in series. The control principle for such CDD is described. Control algorithm can be divided into four stages: obtaining the predicted solar radiation power in the forecast interval; predicted illumination power conversion into electric power; predicted power calculation and the amount of energy that will be generated and transferred by the solar station to the regulator in the forecast interval; power setpoint stabilization on the forecast interval based on the proportional-integral (PI) control law. To verify the obtained theoretical relations, converter parameters with a typical input data were calculated. Model of the converter was created in the MATLAB® Simulink® environment and its operability was checked.

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Section: вибір типу та параметрів акумуляторної батареїunclassified

Solar Power Plant Storage System

Lukianov

Verbytskyi

Blinov

2021

Microsyst., Electron. & Acoust.

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“…The method in [12] used energy storage system bidirectional power conversion and storage algorithms to improve the utilization of renewable energy. The method in [13][14][15] used a 2 of 14 battery energy storage system to solve the intermittence and volatility problems of wind power and improve the grid's ability to accept wind power.…”

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confidence: 99%

Intelligent Regulation Method for a Controllable Load Used for Improving Wind Power Integration

Shao

et al. 2018

Energies

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Improving the safety and stability of power systems by adjusting the controllable load to improve the wind power integration has become a hot research topic. However, the methodology of accurately controlling the load and fundamentally improving the wind power integration capacity has yet to be studied. Therefore, this paper proposes an intelligent regulation method for a controllable load. This method takes the new energy consumption assessment as feedback, and it combines the wind power acceptance assessment and scheduling plan to form the internal and external loop control structure, and it derives the controllable load intelligent regulation architecture. The load curve is decomposed by an interactive load observer, and the load curve is adjusted by the interactive load controller according to a given standard, thereby improving the new energy acceptance capability. Finally, based on the actual grid operation data of a provincial power grid in Northeastern China, the source grid load balancing process and the interactive load regulation model of the wind power system are simulated. The above method verifies the validity and rationality of the proposed method.

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Cable Fault Characteristics of Energy Storage in DC Microgrids

Chen

Zhang

et al. 2020

2020 5th Asia Conference on Power and Electrical Engineering (ACPEE)

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Development of long cycle life valve-regulated lead-acid battery for large-scale battery energy storage system to utilize renewable energy

Cited by 7 publications

References 1 publication

Solar Power Plant Storage System

Solar Power Plant Storage System

Intelligent Regulation Method for a Controllable Load Used for Improving Wind Power Integration

Cable Fault Characteristics of Energy Storage in DC Microgrids

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