Inverter-based hybrid compensation systems contributing to grid stabilization in medium voltage distribution networks with decentralized, renewable generation

Böhm, Ralf; Rehtanz, Christian; Franke, Jörg

doi:10.1007/s00202-016-0425-y

Cited by 13 publications

(5 citation statements)

References 14 publications

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“…In the event of volatile short-term power demand or supply, the short-term storage buffers peaks. When selecting the storage technologies of a hybrid storage system, it is crucial that the purpose of storing requires specific advantages of each storage technology, as otherwise application of a single storage is advantageous [3][4][5][6][7].…”

Section: Hybrid Storage Systems and Tasks Of The Control Systemmentioning

confidence: 99%

Control of a Hybrid Energy Storage System for a Hybrid Compensation System

et al. 2019

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The combination of two or more different energy storage technologies in a hybrid energy storage system appears to be advantageous if the combination of technologies fulfils the storage purpose better than a single storage technology. Herein, requirements regarding the performance of the storage system are determined for a hybrid compensation system for provision of system services in medium-voltage grids. In hybrid storage systems, a common control system ensures that the present storage technologies are utilized in such a way that total storage efficiency is highest and that usability of the application is maximized. The control system of a hybrid storage system consisting of a redox flow battery and high-speed flywheel storage is introduced and evaluated.

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Section: Hybrid Storage Systems and Tasks Of The Control Systemmentioning

confidence: 99%

Control of a Hybrid Energy Storage System for a Hybrid Compensation System

et al. 2019

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“…Those services are also provided by electricity grid operators in addition to transport and distribution of electric energy [4]. Ancillary services can be subdivided into the top categories of frequency stability, voltage stability, supply restoration and operational management of the grid [5].…”

Section: Power Quality In Distribution Networkmentioning

confidence: 99%

“…Calculation methods in frequency-domain are usually procedures for dissection of continuous periodic signals into a continuous spectrum (Tab. 1) [5]. A further, simplistic signal analysis method is to compare the mea- -Synchronous Fundamental "dq-frame" domain -Synchronous individual harmonic "dq-frame" -Instantaneous power "pq-theory" and variants -Generalized integrators and variants suring value to a lookup table and calculate the deviation to be eliminated.…”

Section: Power Quality In Distribution Networkmentioning

confidence: 99%

Low Budget Experimental Setup for Harmonic Detection and Correction

Böhm

Paulsburg

Hamann

et al. 2017

AMM

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Adherance of power quality standards is crucial for electricity network operation and bothindustrial and private customers. However, the transition to electricity supply based on renewable, de-centralized plants which feed in using inverters is accompanied by challenges regarding compliancewith power quality standards. Accordingly, detection and automated processing of relevant variablesof power quality is of increased importance. Digital signal processing offers various approaches of sig-nal evaluation each having individual advantages and disadvantages regarding different power qualityvariables. As a result of incresing decentralized feed in of regenerative plats using inverters, the si-nusoidal fundamental of the power system is distorted and harmonics occur. For elimination of thoseunwanted signal components, a variety of methods is available. Supple- menting current research ac-tivites a laboratory model of an active ﬁlter using low budget prototyping hardware is developed andevaluated. Therefore, an experimental circuit containing a band pass ﬁlter for signal adjustment aswell as a PWM with ampliﬁcation circuit for signal correction have been elaborated. Necessary cal-culations are performed by a standard Atmel microprocessor as used by Arduino Uno, including an8-bit analog to digital converter (ADC).

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“…In order to implement ANM schemes, distributed energy resources (DERs) in the distribution network (i.e. MV and LV systems) play an important role in providing flexibility in the power system for local and system wide grid resiliency, along with maximizing network DER hosting capacity [8,9]. These flexibilities consist of active power (P-) control and reactive power (Q-) control of flexible resources like controllable DER units, battery energy storage systems (BESS), controllable loads and electric vehicles (EVs) which are connected in distribution networks, thereby providing different local and system-wide technical services as part of future ANM schemes [4,10,11].…”

Section: Introductionmentioning

confidence: 99%

Integration and control of lithium-ion BESSs for active network management in smart grids: Sundom smart grid backup feeding case

2021

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Lithium-ion battery energy storage systems (Li-ion BESS), due to their capability in providing both active and reactive power services, act as a bridging technology for efficient implementation of active network management (ANM) schemes for land-based grid applications. Due to higher integration of intermittent renewable energy sources in the distribution system, transient instability may induce power quality issues, mainly in terms of voltage fluctuations. In such situations, ANM schemes in the power network are a possible solution to maintain operation limits defined by grid codes. However, to implement ANM schemes effectively, integration and control of highly flexible Li-ion BESS play an important role, considering their performance characteristics and economics. Hence, in this paper, an energy management system (EMS) has been developed for implementing the ANM scheme, particularly focusing on the integration design of Li-ion BESS and the controllers managing them. Developed ANM scheme has been utilized to mitigate MV network issues (i.e. voltage stability and adherence to reactive power window). The efficiency of Li-ion BESS integration methodology, performance of the EMS controllers to implement ANM scheme and the effect of such ANM schemes on integration of Li-ion BESS, i.e. control of its grid-side converter (considering operation states and characteristics of the Li-ion BESS) and their coordination with the grid side controllers have been validated by means of simulation studies in the Sundom smart grid network, Vaasa, Finland.

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Inverter-based hybrid compensation systems contributing to grid stabilization in medium voltage distribution networks with decentralized, renewable generation

Cited by 13 publications

References 14 publications

Control of a Hybrid Energy Storage System for a Hybrid Compensation System

Control of a Hybrid Energy Storage System for a Hybrid Compensation System

Low Budget Experimental Setup for Harmonic Detection and Correction

Integration and control of lithium-ion BESSs for active network management in smart grids: Sundom smart grid backup feeding case

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