Simplified modelling of nonlinear electromethanogenesis stack for power-to-gas applications

Shahparasti, Mahdi; Bouchakour, Salim; Luna, Álvaro; Molognoni, Daniele; Bosch‐Jimenez, Pau; Borràs, Eduard

doi:10.1016/j.est.2020.101633

Cited by 6 publications

(4 citation statements)

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“…The parameters of 2L-VSC in the proposed BES-P2G are listed in Table 2. A 10 kW EMG-BES module is modelled based on [10], where it is supposed that 10 stacks with 70 V and 14.25 A rating are installed in series. Two simulations have been done to verify the performance of the proposed control system.…”

Section: Processor-in-the-loop Resultsmentioning

confidence: 99%

“…parameters in Table 1 are chosen based on the method mentione experimental tests in the nominal state. In a stack with ns series cell parallel branches, the following parameters can be used in the mod The considered model for the EMG-BES cell is shown in Figure 3 [10,28]. The model parameters in Table 1 are chosen based on the method mentioned by [10] and data of experimental tests in the nominal state.…”

Section: Emg-bes Stackmentioning

confidence: 99%

“…In a stack with ns series cell parallel branches, the following parameters can be used in the mod The considered model for the EMG-BES cell is shown in Figure 3 [10,28]. The model parameters in Table 1 are chosen based on the method mentioned by [10] and data of experimental tests in the nominal state. In a stack with n s series cell in each branch and n p parallel branches, the following parameters can be used in the model:…”

Section: Emg-bes Stackmentioning

confidence: 99%

“…The production of CH 4 from CO 2 using renewable energy surplus, known as Power to Gas (P2G), represents a potential high-capacity energy storage technology [9][10][11][12]. The P2G process links the power grid with the natural gas grid by converting CO 2 and electrical energy into a grid-compatible, synthetic natural gas (mostly CH 4 ), increasing the overall resilience of the energy system and decreasing its price.…”

Section: Introductionmentioning

confidence: 99%

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Control and Validation of a Reinforced Power Conversion System for Upcoming Bioelectrochemical Power to Gas Stations

et al. 2021

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This paper presents a proposal for potential bioelectrochemical power to gas stations. It consists of a two-level voltage source converter interfacing the electrical grid on the AC side and an electromethanogenesis based bioelectrochemical system (EMG-BES) working as a stacked module on the DC side. The proposed system converts CO2 and electrical energy into methane, using wastewater as the additional chemical energy input. This energy storage system can contribute to dampening the variability of renewables in the electrical network, provide even flexibility and grid services by controlling the active and reactive power exchanged and is an interesting alternative technology in the market of energy storage for big energy applications. The big challenge for controlling this system lays in the fact that the DC bus voltage of the converter has to be changed in order to regulate the exchanged active power with the grid. This paper presents a cascade approach to control such a system by means of combining external control loops with fast inner loops. The outer power loop, with a proportional-integral (PI) controller with special limitation values and anti-windup capability, is used to generate DC bus voltage reference. An intermediate loop is used for DC bus voltage regulation and current reference generation. A new proportional resonant controller is used to track the current reference. The proposed scheme has been validated through real-time simulation in OPAL OP4510.

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Section: Processor-in-the-loop Resultsmentioning

confidence: 99%