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FUZZY INFERENCE BASED STABILITY OPTIMIZATION FOR IOT DATA CENTERS DC MICROGRIDS: IMPACT OF CONSTANT POWER LOADS ON SMART GRID COMMUNICATION OVER THE POWERLINE
2019
Journal of Energy - Energija
To determine suitability of using powerline communication (PLC) to monitor stability condition on the 380 V dc microgrid, impact of distortion caused by microgrid constant power loads (CPL) on signals ...
In this paper, Takagi-Sugeno fuzzy inference method is used to establish a Lyapunov stability candidate for a 380 V ring bus dc microgrid modeled with Matlab. ...
The stability domain of the dc microgrid system is lated for a data center microgrid with a 380 V dc bus supplying data center d server acting as CPLs. ...
doi:10.37798/20196811
fatcat:u5n2sgbkazghrl3flquculm3km
DC Bus Stabilization of Li-Ion Battery Based Energy Storage for a Hydrogen/Solar Power Plant for Autonomous Network Applications
2015
IEEE transactions on industry applications
Linear proportional-integral (PI) and nonlinear flatness-based controllers for dc bus stabilization for power plants are compared. ...
load cycles, and the nonlinear differential flatness-based control was determined to provide improved dc bus regulation relative to a classical linear PI control method. ...
Fig. 1 . 1 Proposed power converter structure of a power plant supplied by a PV, an FC, and a Li-ion battery.
Fig. 2 . 2 DC bus energy stabilization based on linear PI control. ...
doi:10.1109/tia.2015.2388853
fatcat:pto2ea5fjbajdjghu5kwf6vsni
Adaptive Backstepping Sliding Mode Control for Boost Converter With Constant Power Load
2019
IEEE Access
The negative impedance characteristics of a constant power load (CPL) can easily lead to the instability of the DC bus voltage. ...
To improve the stability of the DC bus voltage, an adaptive backstepping sliding mode control strategy for a boost converter with the CPL in DC microgrid is proposed. ...
When the load is controlled to output a constant power, it behaves as a constant power load (CPL). ...
doi:10.1109/access.2019.2910936
fatcat:q2akg4sz55aqzhc7apl7ief33a
Analysis of Differential Flatness-Based Control for a Fuel Cell Hybrid Power Source
2010
IEEE transactions on energy conversion
This paper presents an innovative control law for distributed dc generation supplied by a fuel cell (FC) (main source) and supercapacitor (auxiliary source). ...
This kind of system is a multiconverter structure and exhibits nonlinear behavior. ...
Lekapat, who is in-charge of the process of the Franco-Thai on Higher Education and Research Joint Project year: 2009-2010. ...
doi:10.1109/tec.2010.2053037
fatcat:w7m45pfw7jad3i3m63kx4t7zte
A third-order sliding-mode controller for DC/DC converters with constant power loads
2011
2011 IEEE Industry Applications Society Annual Meeting
In a MVDC shipboard power system, DCIDC converters are commonly employed to supply constant power to electric loads. ...
The SMC is able to stabilize the DC power systems over the entire operating range in the presence of significant variations in the load power and input voltage. ...
Fig. 1 shows a DC/DC converter, whose output voltage is regulated to supply a constant-power load, in a shipboard DC-ZED module. Consequently, the input power of the DCfDC converter is constant. ...
doi:10.1109/ias.2011.6074347
dblp:conf/iasam/ZhaoQ11
fatcat:7mrpbflrrfavbeimc5zumfdvdq
Research on Large-Signal Stability of DC Microgrid Based on Droop Control
2019
Energies
Ensuring the large signal stability of the DC microgrid is the premise of the safe operation of the DC microgrid, but the research on the large-signal stability of microgrids with multiple droop control ...
On this basis, a nonlinear droop control method was proposed to improve the anti-interference ability of the system. ...
Therefore, the large signal stability criterion of Equation (A6) has one more positive term than the simplified criterion (20) , so the maximum allowable value of P CPL is larger. ...
doi:10.3390/en12163186
fatcat:7nsrprhjijftxowr7vlsdmhfxi
Nonlinear Control for Isolated DC MicroGrids
Contrôle non linéaire pour les DC MicroGrids isolées
2019
ARIMA
Contrôle non linéaire pour les DC MicroGrids isolées
This paper proposes a distributed nonlinear control strategy for an isolated MicroGrid composed of renewables and different timescale storage systems to supply a DC load. ...
The standalone operation of renew-ables represents a challenge for operation and reliability, therefore the DC MicroGrid concept is seen as a powerful solution allowing renewables integration and reliable ...
The DC load is supplied at constant level of voltage V * C11 according to grid standards. ...
doi:10.46298/arima.5356
fatcat:xlrylwquuzg2ph7xqsjya4ef3u
Application of Superconducting Fault Current Limiter as a Virtual Inertia for DC Distribution Systems
2021
IEEE Access
For simulation purposes, the DC bus was modeled as a DC source. The stability of the DC system was investigated for sudden variations in the supply voltage as well as for sudden load changes. ...
So, based on this concept, the load was modeled as a current-dependent nonlinear resistor, whose current is varying to keep its consumed power constant.
III. ...
doi:10.1109/access.2021.3115989
fatcat:fdfiybwwkve3rkxs6lydwa3k3u
Design of Nonlinear Backstepping Double-Integral Sliding Mode Controllers to Stabilize the DC-Bus Voltage for DC–DC Converters Feeding CPLs
2021
Energies
This paper proposes a composite nonlinear controller combining backstepping and double-integral sliding mode controllers for DC–DC boost converter (DDBC) feeding by constant power loads (CPLs) to improve ...
the DC-bus voltage stability under large disturbances in DC distribution systems. ...
Parameters
Description
Value
V in
Supply voltage
55 V
V bus
Main DC-bus voltage
110 V
P CPL
Nominal power in constant power load
2 kW
r b
Parasitic resistance of an inductor
2 mΩ
L b
Inductance ...
doi:10.3390/en14206753
fatcat:tcvktnqe75eihpzhhtwobnlfty
One-Cycle Zero-Integral-Error Current Control for Shunt Active Power Filters
2020
Electronics
Its application in a three-leg four-wire shunt active power filter is presented, including a stability analysis considering the switching pattern selection. ...
The one-cycle current control technique is a nonlinear technique based on cycle-by-cycle calculation of the ON time of the converter switches for the next switching period. ...
Conflicts of Interest: The authors declare no conflict of interest. ...
doi:10.3390/electronics9122008
fatcat:3ybpsxbysfenlgfoxt3c2sojta
Designing and Modeling of Control Strategies Based on Multi-Objective Optimization for a Permanent-Magnet Synchronous Generator Wind Turbine: A Study Based on the Grid Errors and Wind Speed
2019
Advances in Science and Technology Research Journal
Additionally, a common DC bus and a fully controlled inverter were designed. ...
Since the power demand and the produced power of the turbine are variable and indistinguishable in each moment, a depletion load is also placed in the system. ...
Since the load power demand was variable and the amount of power produced by the turbine was unpredictable, a depletion load was used through a chopper in the DC-bus strategy. ...
doi:10.12913/22998624/111706
fatcat:rl4cg4itq5avvg5j5qhspywm5y
Power Flow Control and Network Stability in an All-Electric Ship
2015
Proceedings of the IEEE
This paper compares the approaches to power flow control and network stability of an integrated ship power system through reducing the dynamics of large loads to operate in compatibility with the dynamics ...
The overall goal of guaranteeing a secure operation of the power system has brought researchers to consider two main approaches: reducing the dynamics of the large load to operate in a range of dynamics ...
Introduction to Constant Power Load Connected to a DC Bus In an MVDC AES, the electrical subsystems are connected to a dc bus. Those subsystems will be interfaced with power converters. ...
doi:10.1109/jproc.2015.2496789
fatcat:3low7qoblvez7l7nlfapg5trze
A Stability Preserving Criterion for the Management of DC Microgrids Supplied by a Floating Bus
2018
Applied Sciences
, behaving as constant power loads (CPLs). ...
the system stability even in the presence of a low bus voltage. ...
This section discusses the stability degradation that can possibly arise in a floating DC bus microgrid supplying a CPL. ...
doi:10.3390/app8112102
fatcat:keobbabcg5hjzp5lfrz3xjfdee
Stability Analysis of DC Distribution Systems with Droop-Based Charge Sharing on Energy Storage Devices
2017
Energies
Since many loads in modern distribution systems are connected through power converters, both constant power loads and simple resistive loads are considered in parallel. ...
To this end, a complete nonlinear DC-grid model has been deployed that includes different DC-DERs, two controlled parallel battery branches, and different varying DC loads. ...
Figure 5 . 5 (a) The net input supply at each distributed energy resource (DER) bus and the current at the constant power load bus; (b) Details of the current changes of the constant power load at the ...
doi:10.3390/en10040433
fatcat:2pzkfitl55aczl4vqngibl2zpm
Hybrid energy storage system control analogous to power quality enhancement operation of interlinking converters
2021
International Journal of Power Electronics and Drive Systems (IJPEDS)
The main advantages of the proposed strategy are to reduce DGs power fluctuations, precise DC bus voltage regulation for generation and load disturbances, improved grid power quality under nonlinear load ...
Increasing nonlinear loads and power electronic converters lead to various power quality issues in microgrids (MGs). ...
The hybrid system consists of a PV generation system, a battery-SC HESS, dc load, an ILC that transfers power from dc bus to ac bus or vice versa, LC filter, upstream power grid, and the ac load. ...
doi:10.11591/ijece.v11i2.pp909-918
fatcat:5nku4g6qgrffdm7np7ibq5oqhe
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