Wireless networked dynamic control testbed for power converters in smart home applications
- Authors: Islam, Syed , Maxwell, Shawn , Park, Sung-Yeul , Zheng, Shaobo , Gong, Tao , Han, Song
- Date: 2017
- Type: Text , Conference proceedings , Conference paper
- Relation: 32nd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2017; Tampa, United States; 26th-30th March 2017 p. 1196-1202
- Full Text: false
- Reviewed:
- Description: Conventional power converters control pulse width modulation (PWM) signals based on the directly sensed feedback signals or estimated state signals. Recently, information and communication technologies are beginning to integrate power converters into smart grid applications. This paper presents a Hardware-In-The-Loop Testbed using a WirelessHART network for smart home applications in a case study. The main components of the testbed are OP4510 RT-LAB-RCP/HIL systems, Texas Instruments Digital Signal Controllers and AwiaTech wireless modules. In this testbed, wireless based controller is integrated with conventional digital controller. OP4510 is used to simulate power stages of the power converters in real time. Texas Instruments Digital Signal Controllers provide PWM signals from the control loop and communication loop. AwiaTech wireless modules are used to build a WirelessHART network to communicate with power converter from a supervisory program. The case study is to support reactive power in smart home applications using 3 bridgeless unidirectional power factor correction (PFC) converters. For this scenario, supervisor collects reactive power measurement data from the input power node and wirelessly transfers reactive power command values to the home appliances driven by PFC converters. Thus, reactive power demand can be minimized. The experimental result demonstrates the performance of the testbed in different communication delays.
Capability, compatibility, and usability evaluation of hardware-in-the-loop platforms for DC-DC converter
- Authors: Maxwell, Shawn , Islam, Syed , Hossain, Kamal , Park, Sung-Yeul
- Date: 2016
- Type: Text , Conference proceedings , Conference paper
- Relation: 2016 IEEE Energy Conversion Congress and Exposition, ECCE 2016; Milwaukee, United States; 18th-22nd September 2016 p. 1-6
- Full Text: false
- Reviewed:
- Description: This paper evaluates the capability, compatibility, and usability of Hardware-in-the-Loop platforms for DC-DC converter. This was accomplished by interfacing the platforms with a physical power stage as well as a controller. The employed platforms are Hi-Rel Power-pole board, Texas Instruments Digital Controller, RTDS, OPAL-RT, dSPACE, and Typhoon. Two sets of experimentation were performed: the power stage represented by the Power-pole board, RTDS, OPAL-RT, dSPACE, and Typhoon and the controller replaced by TI DSC, RTDS, OPAL-RT, dSPACE, and Typhoon. Three points of evaluation for a testing platform that are of interest to industrial researchers as well as academia are capability (speed or modeling capacity), compatibility (ease of porting models from other platforms), and usability (ease of use of software and hardware). This paper provides an introductory resource for research and education by providing results of a simple buck converter example.
Reactive power distribution strategy using power factor correction converters for smart home application
- Authors: Islam, Syed , Maxwell, Shawn , Hossain, Kamal , Park, Sung-Yeul , Park, Sungmin
- Date: 2016
- Type: Text , Conference proceedings , Conference paper
- Relation: 2016 IEEE Energy Conversion Congress and Exposition, ECCE 2016; Milwaukee, United States; 18th-22nd September 2016 p. 1-6
- Full Text: false
- Reviewed:
- Description: Multiple unit of PFC converters can be utilized for better power quality in the residential applications. It is important to set proper amount of reactive power contribution from each unit of PFC converter to reduce power loss and increase stability. To set the referenced amount of reactive power contribution for each PFC converter, a dynamic supervisory controller is necessary. In this paper, a wireless based supervisory controller is introduced to mitigate the problem. Multiple unit of unidirectional bridgeless ac-dc boost PFC converters were used as reactive power resources in a smart home application. The supervisory controller is comprised of a discrete Proportional-Integral controller and distributor which sets the reactive power references for each PFC converter. The controller was designed based on the systems identification method. The controller was designed and simulated considering different communication delays. In the ideal condition, the system had no communication delay. However, actual practical system had some reasonable delay. The effect of the use of supervisory controller was observed for dynamic load changing conditions. The simulation was done by using SIMULINK. Reactive power consumption from grid becomes 0VAR within 0.25 second for ideal condition. However, for the actual condition this become 9.35 seconds.