Active Power Control of PV-Battery Connected MMC-HVDC System for FRT Support

Hossain, Ismail; Abido, M. A.

doi:10.3390/app10207186

Cited by 11 publications

(5 citation statements)

References 43 publications

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“…The MMC-HVDC connection has been identified as one of the most promising technologies for integrating the RER because of its scalability, modularity, and compact footprint [1][2][3]. The AC grid can receive stability support from the MMC-HVDC-connected RER, including frequency regulation [4] and dynamic voltage control [5].…”

Section: Introductionmentioning

confidence: 99%

Battery Power Control Strategy for Intermittent Renewable Energy Integrated Modular Multilevel Converter-Based High-Voltage Direct Current Network

2023

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Modular multilevel converters (MMC) play a dominant role in integrating remotely located renewable energy resources (RER) over the high-voltage direct current (HVDC) transmission network. The fault ride-through capabilities of the MMC-HVDC network during low-voltage faults and the power fluctuation due to RER intermittency are the major obstacles to the effective integration of renewable energy. In response, this article proposes a local voltage-based combined battery energy control scheme for a PV-wind-battery connected MMC-HVDC system to regulate the HVDC-link voltage during low-voltage faults at the point of common coupling of alternating current grids and to reduce the intermittent RER power fluctuation. The proposed technique removes the dynamic braking resistor from the HVDC-link and smoothly integrates the RER without active power reduction of renewable energy under low-voltage faults. Symmetrical and unsymmetrical low-voltage faults have been conducted to validate the effectiveness of the proposed control scheme for the battery in mitigating surplus energy in the HVDC-link. Additionally, wind speed, solar radiation, and temperature have been changed to confirm the improved performance of the battery energy management system. The complete systems have been simulated and tested in a real-time digital simulator (RTDS) and using dSPACE-based controller hardware in a loop setup.

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Section: Introductionmentioning

confidence: 99%

Battery Power Control Strategy for Intermittent Renewable Energy Integrated Modular Multilevel Converter-Based High-Voltage Direct Current Network

2023

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“…The associate editor coordinating the review of this manuscript and approving it for publication was Xiaofeng Yang . the RER because of its scalability, modularity, and compact footprint [1], [2], [3]. The AC grid can receive stability support from the MMC-HVDC connected RER, including the frequency regulation [4] and the dynamic voltage control [5].…”

Section: Introductionmentioning

confidence: 99%

Fault Ride Through and Intermittency Improvement of Renewable Energy Integrated MMC-HVDC System Employing Flywheel Energy Storage

et al. 2023

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Modular multilevel converter (MMC)-based high voltage direct current (HVDC) transmission networks integrate remotely located distributed renewable energy resources (RER). The intermittent nature of RER and symmetrical and asymmetrical AC-side low-voltage faults produce operational difficulties. It reduces the MMC's ability to transfer the rated power, which raises the voltage of the HVDC link. Therefore, the MMC-HVDC network's fault ride-through (FRT) capabilities and the power fluctuation brought on by RER intermittency are potential challenges to the efficient integration of renewable energy resources. In response, this article suggests an energy control scheme for the flywheel energy storage of the PV-wind-MMC-HVDC system in order to regulate the HVDC-link voltage during low voltage faults at the point of common coupling (PCC) of the AC grids and to address the problem of power fluctuation caused by intermittent RER and sudden load changes. The suggested method eliminates the dynamic braking resistor (DBR) from the HVDC link and seamlessly integrates the RER without actively reducing renewable energy power during low voltage faults. To test the effectiveness of the proposed control method for the flywheel energy storage in reducing excess energy in the HVDC link, symmetrical and asymmetrical low voltage faults have been conducted. In addition, changes in wind speed, solar radiation, and temperature have been made to validate the flywheel energy management system's performance. A real-time digital simulator (RTDS) and dSPACE-based controller hardware in loop (CHIL) configuration with a complete system have been used to simulate and evaluate the entire system.INDEX TERMS Modular multilevel converter, PV-wind integration, flywheel energy management system, AC side low voltage faults.

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“…Moreover, newly constructed renewable energy facilities may be concentrated in specific areas because of public acceptance related to location restrictions and issues of available natural energy sources. In this case, HVDC can be an effective solution for integrating and transmitting the generation from large-scale renewable energy resources, such as photovoltaic (PV) and offshore wind farms, to demand areas [15,16].…”

Section: Introductionmentioning

confidence: 99%

Stochastic Approach to Hosting Limit of Transmission System and Improving Method Utilizing HVDC

Lee

Jang

2022

Applied Sciences

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According to the global de-carbonization trends, renewable energy integration has become an increasingly important issue in power systems. To achieve 100% renewable energy integration and operate a system with these resources, it is necessary to appropriately evaluate the system hosting capability and prepare appropriate planning and operation strategies using the evaluation result. So far, these interests have focused particularly on distribution-level systems. However, although the hosting limit in transmission-level systems requires further consideration, previous study is limited. This study introduces the constraints on the transmission-level hosting limit. In addition, a stochastic estimation of the hosting limit methodology in the transmission system and the use of a high voltage direct current system to improve hosting capacity are proposed and evaluated. Moreover, these methodology-based simulations are conducted using possible scenarios on the IEEE 39 bus system with some constraints, and the simulation results are presented herein. The results showed that the HVDC location selection and operation using the proposed method and optimization technique is appropriate. The strategy can be used to integrate more renewable energy. Furthermore, the proposed methodology can be applied to renewable energy integration scenario establishing a plan.

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Active Power Control of PV-Battery Connected MMC-HVDC System for FRT Support

Cited by 11 publications

References 43 publications

Battery Power Control Strategy for Intermittent Renewable Energy Integrated Modular Multilevel Converter-Based High-Voltage Direct Current Network

Battery Power Control Strategy for Intermittent Renewable Energy Integrated Modular Multilevel Converter-Based High-Voltage Direct Current Network

Fault Ride Through and Intermittency Improvement of Renewable Energy Integrated MMC-HVDC System Employing Flywheel Energy Storage

Stochastic Approach to Hosting Limit of Transmission System and Improving Method Utilizing HVDC

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