PCaPAC2012 - List of Keywords (power-supply)

Paper	Title	Other Keywords	Page
WEPD13	Serial Multiplexed Based Data Acquisition and Control System	controls, LabView, GUI, status	29
	N.C. Patel, C.K. Chavda, K.G. Patel IPR, Bhat, Gandhinagar, India
	Data acquisition and control system consist of analog to digital converter, digital to analog converter, timer, counter, pulse generation, digital input / output etc depending upon requirement. All the components of the system must communicate with personal computer (PC) for data and control signal transmission using any one of the communication protocol like Serial, Parallel, USB, and GPIB etc. Serial communication is advantageous over other protocol like long distance data transmission, less number of physical connection, ease of implementation etc. The developed serial multiplexed system can control different module like ADC (for a small analog channel density, moderate sampling rate and local on-board memory) module, DAC (for controlling pressure valve, biasing voltage etc) module, DIO ( for system status monitoring and status control) module, Timer card ( for generating delayed pulse for triggering and synchronizing with other system) using single serial port. A LabVIEW based GUI program is developed for the individual communication of each module.
	Poster WEPD13 [1.603 MB]

THCB03	Using Memcached as Real-time Database in the SPARC Control System	controls, laser, status, undulator	112
	E. Pace, G. Di Pirro INFN/LNF, Frascati (Roma), Italy
	The first implementation of the SPARC control system was based on a distributed TCP/IP data server: each front-end CPU had its own server to distribute data to the console. We decided to move the system to a NoSQL key value database. We decided to use an open source database Memcached. This is a database that is high performance key-value cache optimized for speed only. For this reason we could use Memcached not for storing data, but as a channel of communication between front-end processors and consoles. The first object that we have installed is the camera system. We chose this class of elements because the amount of data is high; cameras are at least 640x480 with 8 bit. In this first installation we made some speed test: we increased the speed transfer and the data transfer is now independent from the number of high level CPUs that are using the same image. The success of this installation convinced us to bring the entire data transfer of SPARC control system to use Memcached as data server.
	Slides THCB03 [3.283 MB]

THPD15	Multichannel High Voltage Power Supply Controls Solution Using Compact Distributed Ethernet Based Boards and Qt Based GUI	controls, GUI, high-voltage, neutron	169
	J. Antony, R. Kumar IUAC, New Delhi, India
	Compact low cost Ethernet based remote controller boards have been developed and tested for distributed control of many DC-DC high voltage power supplies(0-2000V) to be used in large Neutron detector array at IUAC. The boards can be distributed over LAN using network switches for interconnect. Each board has its own unique MAC and IP address for independent read write operations. A 24 channel power supply system, each channel having a compact two layer board with the DC-DC HV converter, mounted on top layer, has been built and tested successfully to power detectors. A user friendly GUI has been developed using Qt as the preferred language which is compatible to both Linux and Windows. The advantage of such a system is that, it is easily expandable to a large number of power supplies, low cost, globally accessible, multiple users in a network can set or read any power supply value through a software control panel developed either as a simple browser based HTTP client or versatile HLL interface using LabVIEW, C++ etc. and OS independent.

THPD17	API Manager Implementation and its Use for Indus Accelerator Control	controls, status, diagnostics, monitoring	175
	B.N. Merh, R.K. Agrawal, K.G. Barpande, P. Fatnani, C.P. Navathe RRCAT, Indore (M.P.), India
	The control system software needed for operation of Indus accelerators is interfaced to the underlying firmware and hardware of the control system by the Application Programming Interface (API) manager. PVSS-II SCADA is being used at the layer-1 (L1) for control and monitoring of various sub-systems in the three-layered architecture of Indus control system. The layer-2 (L2) consists of VME bus based system. The API manager plays a crucial role in interfacing the L1 and L2 of the control system. It has to interact with both the PVSS database and the L2. It uses the PVSS API, a C++ class library, to access the PVSS database, whereas in order to access the L2, custom functions have been built. Several other custom functionalities have also been implemented. This paper presents the important aspects of the API manager like its implementation, its interface mechanism to the lower layer and features like configurability, reusable classes, multithreading capability etc.
	Poster THPD17 [1.119 MB]

THPD27	Control Scheme for Remote Operation of Magnet Power Supplies for Infrared Free Electron Laser	controls, beam-transport, electron, linac	195
	L. Jain, M.A. Ansari, V.P. Bhanage, C.P. Navathe RRCAT, Indore (M.P.), India
	Infrared Free Electron Laser (IRFEL) is under development at MAASD, RRCAT Indore. The IRFEL machine consists of 90keV thermionic gun as electron source, beam transport line, 25MeV Linear Accelerator (LINAC) and an undulator magnet. There are fifty magnets on beam transport line. These magnets are energized by precision power supplies. These power supplies have local as well as remote control and will be located at equipment hall. The control room and equipment hall are at approximate distance of 300 m. We have planned a three layer structure for centralized operation of Beam Transport line Magnet Power Supplies (BTMPS). These layers are device interface layer, the equipment control layer and the presentation layer. Presentation layer is linked with equipment control layer on Ethernet. Whereas equipment control layer will be linked to device interface layer by RS-485. Device interface layer consist Magnet Power Supply Controllers (MPSC). Each MPSC has one master and five slave controllers linked on isolated SPI bus, which will control five BTMPS. We have developed slave controllers and a master as prototype of MPSC. This paper describes MPSC prototype and proposed control scheme.
	Poster THPD27 [0.818 MB]

THPD28	A Distributed CAN Bus Based Embedded Control System for 750 keV DC Accelerator	controls, LabView, monitoring, high-voltage	197
	A. Kasliwal, T.G. Pandit RRCAT, Indore (M.P.), India
	Funding: RRCAT, Indore, Department of Atomic Energy, Government of India This paper describes a distributed embedded system that uses a high performance mixed signal controller C8051F040 for its DAQ nodes and is based on CAN bus protocol for remote monitoring and controlling of various subsystems of 750 keV DC accelerator based irradiation facility at RRCAT, Indore. A PC with integrated PCI CAN card communicates with intelligent DAQ nodes over CAN bus and each node is interfaced with a subsystem. An opto- isolated SN65HVD230 CAN driver is interfaced between each node and physical bus. Remote frames and message prioritizing are used for efficient control. The PC application is developed using LabVIEW 8.6. The proposed system is more reliable and noise immune as compared to previously [1] used systems that initially used a centralized system based on C8051 controller. This was then upgraded [2] to a distributed system that used micro-controller AduC812 and communicated over RS485 link. The new system has been integrated and tested satisfactorily for its designed performance with test jigs that simulated the actual subsystems with a bus length of 75 meters. First the complete scheme of the system is presented, then the hardware and software designs are discussed. [1] A. Kasliwal, "PC based control system for 750 KV DC accelerator", InPAC-2003, CAT, Indore, India [2] A. Kasliwal, "Upgradation of PC based control system for 750 keV DC accelerator", InPAC-2005, VECC, Kolkata, India

THPD40	Instrumentation Architecture for ITER Diagnostic Neutral Beam Power Supply System	controls, ion, plasma, injection	214
	A.M. Thakar, U.K. Baruah, R. Dave, H.A. Dhola, S. Gajjar, V. Gupta, D.C. Parmar, A.M. Patel, B.M. Raval, N.P. Singh IPR, Bhat, Gandhinagar, India J.Y. Journeaux, D. Lathi, B. Schunke, S. Svensson ITER Organization, St. Paul lez Durance, France
	A Neutral Beam Injection system is used for either heating or diagnostics of the plasma in a tokamak. The Diagnostics Neutral Beam system [1] for ITER based on acceleration of negative ions; injects a neutral (Ho) beam at 100KeV with specified modulation into the plasma for charge exchange recombination spectroscopy. DNBPS system consists of HVPS, HCPS and RF Sources. The system operates in a given operating sequence; very high electromagnetic transients are intrinsically generated during operation. Instrumentation is to be provided to operate the DNBPS system remotely with required control and protection. The operation is to be synchronized with ITER operation as directed by CODAC. Instrumentation functionality includes Acquisition of injector performance parameters, Operation and control of necessary auxiliaries, Protection of DNB components and power supplies using interlock system, To ensure safe operation of high voltage hazardous systems and To facilitate test and maintenance of individual subsystem. This paper discusses about proposed DNB instrumentation architecture. The design generally follows the protocols from the ITER- Plant Control Design Handbook. [1] Lennart Svensson et.al, "Instrumentation and diagnostics for the ITER Neutral Beam System", Fusion Engineering and Design 86 (2011)
	Poster THPD40 [1.032 MB]

Paper

Title

Other Keywords

Page

WEPD13

Serial Multiplexed Based Data Acquisition and Control System

controls, LabView, GUI, status

29

N.C. Patel, C.K. Chavda, K.G. Patel
IPR, Bhat, Gandhinagar, India

Data acquisition and control system consist of analog to digital converter, digital to analog converter, timer, counter, pulse generation, digital input / output etc depending upon requirement. All the components of the system must communicate with personal computer (PC) for data and control signal transmission using any one of the communication protocol like Serial, Parallel, USB, and GPIB etc. Serial communication is advantageous over other protocol like long distance data transmission, less number of physical connection, ease of implementation etc. The developed serial multiplexed system can control different module like ADC (for a small analog channel density, moderate sampling rate and local on-board memory) module, DAC (for controlling pressure valve, biasing voltage etc) module, DIO ( for system status monitoring and status control) module, Timer card ( for generating delayed pulse for triggering and synchronizing with other system) using single serial port. A LabVIEW based GUI program is developed for the individual communication of each module.

Poster WEPD13 [1.603 MB]

THCB03

Using Memcached as Real-time Database in the SPARC Control System

controls, laser, status, undulator

112

E. Pace, G. Di Pirro
INFN/LNF, Frascati (Roma), Italy

The first implementation of the SPARC control system was based on a distributed TCP/IP data server: each front-end CPU had its own server to distribute data to the console. We decided to move the system to a NoSQL key value database. We decided to use an open source database Memcached. This is a database that is high performance key-value cache optimized for speed only. For this reason we could use Memcached not for storing data, but as a channel of communication between front-end processors and consoles. The first object that we have installed is the camera system. We chose this class of elements because the amount of data is high; cameras are at least 640x480 with 8 bit. In this first installation we made some speed test: we increased the speed transfer and the data transfer is now independent from the number of high level CPUs that are using the same image. The success of this installation convinced us to bring the entire data transfer of SPARC control system to use Memcached as data server.

Slides THCB03 [3.283 MB]

THPD15

Multichannel High Voltage Power Supply Controls Solution Using Compact Distributed Ethernet Based Boards and Qt Based GUI

controls, GUI, high-voltage, neutron

169

J. Antony, R. Kumar
IUAC, New Delhi, India

Compact low cost Ethernet based remote controller boards have been developed and tested for distributed control of many DC-DC high voltage power supplies(0-2000V) to be used in large Neutron detector array at IUAC. The boards can be distributed over LAN using network switches for interconnect. Each board has its own unique MAC and IP address for independent read write operations. A 24 channel power supply system, each channel having a compact two layer board with the DC-DC HV converter, mounted on top layer, has been built and tested successfully to power detectors. A user friendly GUI has been developed using Qt as the preferred language which is compatible to both Linux and Windows. The advantage of such a system is that, it is easily expandable to a large number of power supplies, low cost, globally accessible, multiple users in a network can set or read any power supply value through a software control panel developed either as a simple browser based HTTP client or versatile HLL interface using LabVIEW, C++ etc. and OS independent.

THPD17

API Manager Implementation and its Use for Indus Accelerator Control

controls, status, diagnostics, monitoring

175

B.N. Merh, R.K. Agrawal, K.G. Barpande, P. Fatnani, C.P. Navathe
RRCAT, Indore (M.P.), India

The control system software needed for operation of Indus accelerators is interfaced to the underlying firmware and hardware of the control system by the Application Programming Interface (API) manager. PVSS-II SCADA is being used at the layer-1 (L1) for control and monitoring of various sub-systems in the three-layered architecture of Indus control system. The layer-2 (L2) consists of VME bus based system. The API manager plays a crucial role in interfacing the L1 and L2 of the control system. It has to interact with both the PVSS database and the L2. It uses the PVSS API, a C++ class library, to access the PVSS database, whereas in order to access the L2, custom functions have been built. Several other custom functionalities have also been implemented. This paper presents the important aspects of the API manager like its implementation, its interface mechanism to the lower layer and features like configurability, reusable classes, multithreading capability etc.

Poster THPD17 [1.119 MB]

THPD27

Control Scheme for Remote Operation of Magnet Power Supplies for Infrared Free Electron Laser

controls, beam-transport, electron, linac

195

L. Jain, M.A. Ansari, V.P. Bhanage, C.P. Navathe
RRCAT, Indore (M.P.), India

Infrared Free Electron Laser (IRFEL) is under development at MAASD, RRCAT Indore. The IRFEL machine consists of 90keV thermionic gun as electron source, beam transport line, 25MeV Linear Accelerator (LINAC) and an undulator magnet. There are fifty magnets on beam transport line. These magnets are energized by precision power supplies. These power supplies have local as well as remote control and will be located at equipment hall. The control room and equipment hall are at approximate distance of 300 m. We have planned a three layer structure for centralized operation of Beam Transport line Magnet Power Supplies (BTMPS). These layers are device interface layer, the equipment control layer and the presentation layer. Presentation layer is linked with equipment control layer on Ethernet. Whereas equipment control layer will be linked to device interface layer by RS-485. Device interface layer consist Magnet Power Supply Controllers (MPSC). Each MPSC has one master and five slave controllers linked on isolated SPI bus, which will control five BTMPS. We have developed slave controllers and a master as prototype of MPSC. This paper describes MPSC prototype and proposed control scheme.

Poster THPD27 [0.818 MB]

THPD28

A Distributed CAN Bus Based Embedded Control System for 750 keV DC Accelerator

controls, LabView, monitoring, high-voltage

197

A. Kasliwal, T.G. Pandit
RRCAT, Indore (M.P.), India

Funding: RRCAT, Indore, Department of Atomic Energy, Government of India
This paper describes a distributed embedded system that uses a high performance mixed signal controller C8051F040 for its DAQ nodes and is based on CAN bus protocol for remote monitoring and controlling of various subsystems of 750 keV DC accelerator based irradiation facility at RRCAT, Indore. A PC with integrated PCI CAN card communicates with intelligent DAQ nodes over CAN bus and each node is interfaced with a subsystem. An opto- isolated SN65HVD230 CAN driver is interfaced between each node and physical bus. Remote frames and message prioritizing are used for efficient control. The PC application is developed using LabVIEW 8.6. The proposed system is more reliable and noise immune as compared to previously [1] used systems that initially used a centralized system based on C8051 controller. This was then upgraded [2] to a distributed system that used micro-controller AduC812 and communicated over RS485 link. The new system has been integrated and tested satisfactorily for its designed performance with test jigs that simulated the actual subsystems with a bus length of 75 meters. First the complete scheme of the system is presented, then the hardware and software designs are discussed.
[1] A. Kasliwal, "PC based control system for 750 KV DC accelerator", InPAC-2003, CAT, Indore, India
[2] A. Kasliwal, "Upgradation of PC based control system for 750 keV DC accelerator", InPAC-2005, VECC, Kolkata, India

THPD40

Instrumentation Architecture for ITER Diagnostic Neutral Beam Power Supply System

controls, ion, plasma, injection

214

A.M. Thakar, U.K. Baruah, R. Dave, H.A. Dhola, S. Gajjar, V. Gupta, D.C. Parmar, A.M. Patel, B.M. Raval, N.P. Singh
IPR, Bhat, Gandhinagar, India
J.Y. Journeaux, D. Lathi, B. Schunke, S. Svensson
ITER Organization, St. Paul lez Durance, France

A Neutral Beam Injection system is used for either heating or diagnostics of the plasma in a tokamak. The Diagnostics Neutral Beam system [1] for ITER based on acceleration of negative ions; injects a neutral (Ho) beam at 100KeV with specified modulation into the plasma for charge exchange recombination spectroscopy. DNBPS system consists of HVPS, HCPS and RF Sources. The system operates in a given operating sequence; very high electromagnetic transients are intrinsically generated during operation. Instrumentation is to be provided to operate the DNBPS system remotely with required control and protection. The operation is to be synchronized with ITER operation as directed by CODAC. Instrumentation functionality includes

Acquisition of injector performance parameters,
Operation and control of necessary auxiliaries,
Protection of DNB components and power supplies using interlock system,
To ensure safe operation of high voltage hazardous systems and
To facilitate test and maintenance of individual subsystem.

This paper discusses about proposed DNB instrumentation architecture. The design generally follows the protocols from the ITER- Plant Control Design Handbook.
[1] Lennart Svensson et.al, "Instrumentation and diagnostics for the ITER Neutral Beam System", Fusion Engineering and Design 86 (2011)

Poster THPD40 [1.032 MB]