Matlab applications to generate synthetic electricity load profiles of office buildings and detached houses

Brodén, Daniel; Paridari, Kaveh; Nordström, Lars

doi:10.1109/isgt-asia.2017.8378371

Cited by 27 publications

(20 citation statements)

References 8 publications

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“…The experimental software used was a custom listening test application generated by Appdesigner (a MATLAB environment for application development [30]) by the author. The application's operation interface is shown in Figure 6.…”

Section: Methodsmentioning

confidence: 99%

Impact Thresholds of Parameters of Binaural Room Impulse Responses (BRIRs) on Perceptual Reverberation

Kearney

Daffern

2022

Applied Sciences

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This paper presents a study on the perceived importance of different acoustic parameters of Binaural Room Impulse Response (BRIR) rendering. A headphone-based listening test was conducted with twenty expert participants. Three BRIRs generated from simulations of three different rooms were convolved with a dry speech signal and used as reference audio samples. Four BRIR parameters, Initial Time Delay Gap (ITDG), Forward Early Reflections (FER), Reverse Early Reflections (RER) and Late Reverberation (LR) were systematically altered and convolved with a speech signal to generate the test conditions. A staircase method was used to obtain the threshold at which each BRIR parameter was perceived as different from the reference audio sample. The average perceived impact threshold of each parameter was then calculated across the twenty participants. Results show that RER removal and ITDG extension have a clear impact on the perceptual reverberation of speech audio. Subjects were less sensitive to FER removal. The effect of LR removal on perceptual reverberation is hard to distinguish. Therefore, RER and ITDG are of particular importance when designing artificial reverberation algorithms, whilst more research is needed to understand the perceptual contribution of LR. Minor changes in FER and LR are less significant.

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Section: Methodsmentioning

confidence: 99%

Impact Thresholds of Parameters of Binaural Room Impulse Responses (BRIRs) on Perceptual Reverberation

Kearney

Daffern

2022

Applied Sciences

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“…All PVs and loads are connected to the phase of 210 V, and the average of voltages in the two phases of 105 V is used for the evaluation. The 30-day time-series data of PVs and loads with one-minute intervals, which are generated by the MATLAB application [30], are utilized in every single customer. Therefore, the total time-step T of daily simulation becomes 1440.…”

Section: Simulation Outlinementioning

confidence: 99%

Aggregation of Radial Distribution System Bus with Volt-Var Control

Kikusato¹,

Ustun²,

Orihara³

et al. 2021

Energies

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The high penetration of the distributed energy resources (DERs) encourages themselves to implement grid-supporting functions, such as volt-var control. The quasi-static time-series (QSTS) simulation is an essential technique to evaluate the impact of active DERs on the grid. Meanwhile, the increase of complexity on the circuit model causes a heavy computational burden of QSTS simulation. Although circuit reduction methods have been proposed, there have been few methods that can appropriately handle the distribution system (DS) with multiple voltage control devices, such as DERs implementing volt-var control. To address the remaining issues, this paper proposes an offline bus aggregation method for DS with volt-var control. The method determines the volt-var curve for the aggregated bus on the basis of historical data to reduce error in the aggregated model, and its offline process solves the computational convergence issue concerned in the online one. The effectiveness of the proposed method is validated in the simulation using a Japanese low-voltage DS model. The simulation results show that the proposed method can reduce the voltage error and computational time. Furthermore, the versatility of the proposed method is verified to show the performance does not heavily depend on how to select historical data for model-building.

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“…In order to obtain a realistic time series of the true state variables (i.e., bus voltage RMS amplitudes and angles) to be compared with the results of the DSSE algorithms (see Section 6), the nominal load values of the IEEE 33-bus system shown in Table 1 are replaced with one-year-long synthetic load profiles resulting from the aggregation of the residential and office electricity consumption generated with the software tool developed by Brodén et al [43]. The time resolution of such profiles is 15 min.…”

Section: Case Study Descriptionmentioning

confidence: 99%

A Distribution System State Estimator Based on an Extended Kalman Filter Enhanced with a Prior Evaluation of Power Injections at Unmonitored Buses

2020

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In the context of smart grids, Distribution Systems State Estimation (DSSE) is notoriously problematic because of the scarcity of available measurement points and the lack of real-time information on loads. The scarcity of measurement data influences on the effectiveness and applicability of dynamic estimators like the Kalman filters. However, if an Extended Kalman Filter (EKF) resulting from the linearization of the power flow equations is complemented by an ancillary prior least-squares estimation of the weekly active and reactive power injection variations at all buses, significant performance improvements can be achieved. Extensive simulation results obtained assuming to deploy an increasing number of next-generation smart meters and Phasor Measurement Units (PMUs) show that not only the proposed approach is generally more accurate and precise than the classic Weighted Least Squares (WLS) estimator (chosen as a benchmark algorithm), but it is also less sensitive to both the number and the metrological features of the PMUs. Thus, low-uncertainty state estimates can be obtained even though fewer and cheaper measurement devices are used.

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Matlab applications to generate synthetic electricity load profiles of office buildings and detached houses

Cited by 27 publications

References 8 publications

Impact Thresholds of Parameters of Binaural Room Impulse Responses (BRIRs) on Perceptual Reverberation

Impact Thresholds of Parameters of Binaural Room Impulse Responses (BRIRs) on Perceptual Reverberation

Aggregation of Radial Distribution System Bus with Volt-Var Control

A Distribution System State Estimator Based on an Extended Kalman Filter Enhanced with a Prior Evaluation of Power Injections at Unmonitored Buses

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