TEST RESULTS OF THE HELIOTRON E POWER SUPPLY AND CONTROL SYSTEMS

1981 ◽  
pp. 877-882
Author(s):  
K. Murai ◽  
S. Koseki ◽  
S. Suzuki ◽  
Y. Ueyama ◽  
K. Uo ◽  
...  
Keyword(s):  
Control Systems ◽  
Power Supply ◽  
Test Results ◽  
And Control

scholarly journals SIMULASI AUTOMATIC TRANSFER SWITCH DAN AUTOMATIC MAINS FAILURE DENGAN PLC OMRON SYSMAC CP1E

2019 ◽  
Vol 4 (1) ◽  
pp. 27
Author(s):  
Suhanto Suhanto
Keyword(s):  
Electric Power ◽  
Control Systems ◽  
Power Supply ◽  
Power Supplies ◽  
Test Results ◽  
Control Test ◽  
Electric Power Supply ◽  
Main Requirement ◽  
And Control ◽  
Monitor And Control

<p>Electric power supply is the main requirement of equipment at the airport, therefore the reliability of the supply of power supplies is a top priority to support flight services. In addition to PLN as the main power supply the generator is used to supply a backup power supply. Automatic Transfer Switch (ATS) and Automatic Mains Failure (AMF) control systems are needed to regulate the switching of power supplies from PLN to Genset or vice versa. The ATS and AMF control systems use the Omron Sysmac CP1E PLC with a display using Easy Builder 8000 from Weintek which functions as an ATS and AMF monitor and control. Test results on ATS and AMF in manual and automatic modes, the system runs well.<br />Keywords. Automatic Transfer Switch (ATS), Automatic Mains Failure (AMF), PLC</p>

Introduction and Commissioning of the New Darmstadt Transonic Compressor Test Facility

2019 ◽  
Author(s):  
Christian Kunkel ◽  
Jan Werner ◽  
Daniel Franke ◽  
Heinz-Peter Schiffer ◽  
Fabian Wartzek ◽  
...  
Keyword(s):  
Control Systems ◽  
Gas Turbines ◽  
State Of The Art ◽  
Test Facility ◽  
Test Results ◽  
Test Rig ◽  
Vast Number ◽  
Transonic Compressor ◽  
Profound Knowledge ◽  
And Control

Abstract With the well-known Transonic Compressor Darmstadt (TCD) in operation since 1994, profound knowledge in designing and operating a sophisticated test-rig is available at the Institute of Gas Turbines and Aerospace Propulsion of TU Darmstadt. During this period, TCD has been subject to a vast number of redesigns within different measurement campaigns (see [1], [2], [3], [4], [5], [6], [7], [8]). To expand the capabilities and ensure a sustainable process of compressor research, a new test facility was designed and built by the institute. The new test rig Transonic Compressor Darmstadt 2 (TCD2) features increased power for higher pressure ratios and higher mass-flow, a state of the art control system, increased flexibility towards different compressor geometries and modern data acquisition hardware and software. Following the successful commissioning of the test-rig in March 2018, a first measurement campaign has been conducted. Early test results regarding aerodynamic performance and aeroelastic effects of the test compressor are presented together with a detailed overview of test-rig infrastructure and control systems as well as the test compressor and the measurement hardware.

Designing Arduino-Based Sluice Control System With Self-Check Sensor Feature

JURNAL TIKA ◽  
2021 ◽  
Vol 6 (03) ◽  
pp. 205-212
Author(s):  
Balqis Yafis ◽  
Rahmat ;
Keyword(s):  
Control System ◽  
Water Level ◽  
Control Systems ◽  
Water Levels ◽  
The Self ◽  
Test Results ◽  
Self Monitoring ◽  
Measurement Results ◽  
Sensor Measurement ◽  
And Control

The use of Arduino-Based floodgates aims to address the issue of flooding. The goal of this research was to create a system that could monitor water levels and control floodgatesUltrasonic sensor was used to measure water level, as the water level becomes the indicator to open and close the floodgates. The ultrasonic sensor is mounted on the dam and measures the distance between the water’s surface and the sensor transmitter. The results of the measurement of the water level are used to control the floodgates. Sensor measurement results are not always valid, given the age of the sensor and the terrain around the dam is quite challenging. The self-check sensor feature is introduced in this study as a way to overcome detection faults in the system, where ultrasonic sensors can perform self-monitoring by relying solely on their neighbours. In general, the process is carried out in four stages, starting from the stage of reading the sensor, the stage transmitting and receiving data from the Arduino, the stage of detecting sensor’s value, the stage of displaying the sensor values. At the stage of displaying the sensor value, there are four water level conditions, normal, waspada, siaga and bahaya. According to the test results, incorporating self-check sensors into the system enables for more efficient Arduino-based sluice control systems, as well as the possibility of detecting malfunctions caused by sensor damage

Information protection to prevent failures of elements of automated information and control systems of power facilities

2021 ◽  
Vol 94 ◽  
pp. 144-155
Author(s):  
E. P. Grabchak ◽  
◽  
E. L. Loginov ◽  
Keyword(s):  
Information Security ◽  
Control Systems ◽  
Power Supply ◽  
Information Exchange ◽  
Control Process ◽  
Reference Sequence ◽  
Security Threats ◽  
Power Equipment ◽  
Intelligent Methods ◽  
And Control

Introduction. One of the most important tasks in achieving reliability and safety of power supply as an element of ensuring technospheric security is the modernization of automated information and control systems for the transmitting and receiving sides, which ensures resistance against known types of attacks. The aim of the study is to solve the problem of secure information exchange within the framework of automated information and control systems, taking into account the low security of technological communication channels of power facilities to achieve the reliability and safety of power supply as an element of ensuring technospheric security based on the development of intelligent methods for detecting dangerous influences and intrusions to neutralize information security threats in relation to commands to control power equipment. Research methods. Within the framework of the study, general scientific and special methods of scientific knowledge were used, including analysis, synthesis, generalization, which were based on the main provisions and patterns of behavior of systems and information theory. Research results. It is proposed to create innovative algorithms for controlling power equipment, built on the basis of libraries of reference commands and reference sequences of commands used to replace commands intentionally or accidentally distorted by erroneous bits, as well as diagnosing vulnerabilities of information and control systems to ensure the correctness of the process of controlling power equipment. Conclusion. The listed technologies will make it possible to create a new class of efficient algorithms for power equipment control, built on the basis of intelligent methods for detecting dangerous influences and intrusions to neutralize information security threats in relation to control commands based on the analysis of high-level behavioral characteristics of the protected information and control system with the function of controlling the transition of the controlled system to the next a condition that depends on the exact correspondence of the generated commands to the reference commands and the reference sequence of commands, which will ensure the correctness of the control process of power equipment. Key words: energy, information and control networks, reliability, security, power supply, algorithms, monitoring, protection, information.

An Innovation-Based Methodology for HVAC System Fault Detection

1985 ◽  
Vol 107 (4) ◽  
pp. 284-289 ◽  
Author(s):  
P. B. Usoro ◽  
I. C. Schick ◽  
S. Negahdaripour
Keyword(s):  
Mathematical Model ◽  
Control Systems ◽  
Energy Management ◽  
Air Conditioning ◽  
Energy Use ◽  
Hvac System ◽  
Test Results ◽  
Nonlinear Mathematical Model ◽  
Control Scheme ◽  
And Control

Although Energy Management and Control Systems (EMCS) have since the early 1970’s contributed significantly to the reduction (20-40 percent) of energy use in buildings without sacrificing occupants’ comfort, their full capabilities have not been completely realized. This is in part due to their inability to quickly detect and compensate for failures in the Heating, Ventilation and Air Conditioning (HVAC) system. In fact, no matter how good the control scheme for the HVAC system might be, the presence of undetected faults can completely offset any expected savings. This paper presents a methodology for detecting faults in an HVAC system using a nonlinear mathematical model and an extended Kalman filter. The technique was implemented in a computer program and successfully used to detect “planted” faults in simulations of the air handler unit of an HVAC system. Test results are presented to demonstrate the effectiveness of the methodology.

Replacement of I&C System for the Four Main Pumps in the Fuel Channels Cooling Circuit of “Maria” Polish Research Reactor

2014 ◽  
Author(s):  
Rafał Drobnik ◽  
Andrzej Głowacki
Keyword(s):  
Control System ◽  
Control Systems ◽  
Power Supply ◽  
Research Reactor ◽  
Digital System ◽  
Analog To Digital ◽  
Cooling Circuit ◽  
Operational Tests ◽  
And Control ◽  
Made In

In this work the replacement of the I&C connected with the four main pumps in a Polish research reactor called “Maria” is discussed. In particular, this paper focuses on the aspect of the whole system of pump parameters measurements (temperature, vibrations, power) and pump control system. The whole architecture of the I&C system (including power supply, redundancy of electrical and control system) will be showed. During the I&C replacement some problems arose, such as the change in the pump control system from analog to digital system; the link existing in the reactor part of the measurement made in analogue to a digital system, as part of the measurements, which were carried out in an old control system; the code for the PLC controller program dedicated exclusively to the requirements of control systems pumps. All of these problems will be discussed here, together with the proposed solutions. Moreover, I&C functional and operational tests carried out after the placement of the pumps will be described, such as loss of power and failure of one PLC controller.

scholarly journals Analysis of propulsion units dedicated to test stands for aviation systems

2021 ◽  
Author(s):  
Ksenia Siadkowska ◽  
Błażej Czajka ◽  
Karol Ścisłowski ◽  
Mirosław Wendeker
Keyword(s):  
Power Systems ◽  
Control Systems ◽  
Power Supply ◽  
Exhaust System ◽  
Unmanned Aircraft ◽  
Unmanned Aircraft Systems ◽  
Vertical Position ◽  
Aircraft Systems ◽  
Stationary Test ◽  
And Control

This paper presents an analysis of selected propulsion units dedicated to test stands for unmanned aircraft systems. It focuses on engines suitable for aircraft with a maximum take-off mass up to 150 kg. The study includes an analysis of propulsion units that can be used to power systems on stationary test stands dedicated to advanced research and measurement of prototype aerospace technologies intended for use in rotorcraft. The analysis of propulsion units shows that electric units are a better choice for powering UAV rotorcraft test stands. Their main advantages include the possibility to simplify the construction of the device by eliminating gears and to mount the motor in a vertical position, simpler power supply, cooling and control systems and the lack of an exhaust system. Additional advantages are undoubtedly lower vibration generation, cheaper and easier operation as well as better comfort.

scholarly journals Rancangan Catu Daya Cadangan SRAM Pada Z80 Trainer

2021 ◽  
Vol 3 (1) ◽  
pp. 19-22
Author(s):  
Hidayat Tahir ◽  
Syahrir Abdussamad ◽  
Iskandar Zulkarnain Nasibu
Keyword(s):  
Power Supply ◽  
Source Code ◽  
Control Unit ◽  
Switching Control ◽  
Test Results ◽  
Li Ion Battery ◽  
Teaching Aids ◽  
Li Ion ◽  
And Control ◽  
Write Source

Z80 Trainer banyak digunakan dalam praktikum maupun alat bantu peraga terkait pembelajaran mikroprosesor. Dalam penggunaannya, Z80 Trainer menggunakan keypad untuk menulis kode sumber secara manual dan selanjutnya disimpan dalam memori secara volatile.  Masalah yang sering terjadi adalah putusnya pasokan daya ke Z80 Trainer sehingga program yang telah ditulis tidak tersimpan dan harus ditulis kembali. Penelitian ini ditujukan untuk merancang dan mengontrol catu daya cadangan untuk SRAM di Z80 Trainer menggunakan baterai, yang mampu mendeteksi terputusnya suplai daya dari tegangan listrik PLN untuk memastikan bahwa data dan program yang telah ditulis dan tersimpan di memori tidak terhapus. Metode yang digunakan dalam penelitian ini adalah metode eksperimen dan perancangan alat yang dilaksanakan dilaboratorium. Penelitian ini telah menghasilkan alat yang dapat mengontrol catu daya cadangan berasal dari baterai melalui rangkaian switching control unit untuk SRAM di Z80 Trainer. Hasil pengujian unjuk kerja mendapati bahwa alat yang telah dibuat dapat mengontrol atau mengatur catu daya di SRAM disaat catu daya utama PLN terputus selama kurang lebih 26 hari dengan memakai baterai Li-Ion tipe 18650 berkapasitas 3000 mAh. Pengujian lama waktu penggunaan alat d kondisi normal menggunakan catu daya cadangan mendapatkan hasil sekitar ±20 jam.Z80 Trainer is widely used in practicum and teaching aids related to microprocessor learning. In use, the Z80 Trainer uses a keypad to write source code manually and then stored in volatile memory. The problem that often occurs is that the power supply to the Z80 Trainer is cut off so that the written program is not saved and has to be rewritten. This research is designed to build and control a backup power supply for SRAM on the Z80 Trainer using a battery, which can meet the power supply cut off from the PLN mains voltage to ensure that data and programs that have been written and stored in memory are not deleted. The method used in this research is the experimental method and the design of the tools carried out in the laboratory. This research has produced a tool that can control the backup power supply coming from the battery via a circuit of the switching control unit for the SRAM on the Z80 Trainer. The test results prove that the tool that has been made can control or build power in SRAM when the main power supply is cut off for less than 26 days using a Li-Ion battery type 18650 with a capacity of 3000 mAh. Testing the length of time to use the tool under normal conditions using a backup power supply to get the result of about ± 20 hours. 

Remote Supervision and Control Systems for Electrified Transport Power Supply

1997 ◽  
Vol 30 (8) ◽  
pp. 1157-1161
Author(s):  
D. Negreanu ◽  
M. Rusan ◽  
A. Mitrea
Keyword(s):  
Control Systems ◽  
Power Supply ◽  
Remote Supervision ◽  
And Control
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