scholarly journals New Engineering Thinking for a New Climate

2016 ◽  
Vol 138 (06) ◽  
pp. 28-33
Author(s):  
Michael E. Webber
Keyword(s):  
Control Systems ◽  
Distribution System ◽  
Paris Agreement ◽  
Power Sector ◽  
Environmental Challenges ◽  
Energy Transitions ◽  
And Control ◽  
Transmission And Distribution

This article emphasis the need for new engineering approaches to deal with increasing environmental challenges. The Paris Agreement calls on mechanical engineers to take the ongoing decarbonization trend and accelerate it. The challenge of the Paris Agreement differs from earlier energy transitions in an important way: this shift is being intentionally pushed along, rather than occurring accidentally as before. Handling the influx of power from intermittent sources such as wind and solar is going to require mechanical engineers to rethink the transmission and distribution system. The Paris Agreement gives unambiguous direction to mechanical engineers: develop better hardware, algorithms, and control systems to decarbonize the power sector. In the process of accomplishing the task, there are a great many benefits that will certainly result from it: generating electricity with greater efficiency, building a grid that is more robust and flexible, and preparing engineering graduates to have a larger impact on society.

Floating wetland islands as a method of nitrogen mass reduction: results of a 1 year test

2015 ◽  
Vol 72 (5) ◽  
pp. 704-710 ◽  
Author(s):  
Rafael Vázquez-Burney ◽  
James Bays ◽  
Ryan Messer ◽  
Jeffrey Harris
Keyword(s):  
Distribution System ◽  
Removal Rate ◽  
Reclaimed Water ◽  
Hydraulic Residence Time ◽  
Removal Capacity ◽  
The Difference ◽  
Pasco County ◽  
Water Transmission ◽  
And Control ◽  
Transmission And Distribution

Floating wetland islands (FWIs) were tested in Pasco County, Florida, as a method of reducing total nitrogen (TN) in reclaimed water during reservoir storage. The Pasco County Master Reuse System (PCMRS) is a regional reclaimed-water transmission and distribution system providing wastewater effluent disposal for the county. Total daily mass loading from reclaimed water is limited by nitrogen content in the PCMRS watershed. To test TN reduction efficacy, 20 FWIs were constructed, installed, and monitored in a lined pond receiving PCMRS reclaimed water. In total, 149 m2 of FWIs were installed, distributed as a connected network covering 1,122 m2, or 7% of pond area. Pond hydraulic residence time averaged 15.7 days. Treatment performance was assessed during three consecutive periods: establishment (first 6 months of grow-in), performance (8 months immediately following grow-in), and control (3 months after the FWIs were removed from the pond). The FWIs enhanced pond nitrogen removal capacity by 32%. The primary effect of the FWIs was to decrease organic nitrogen in the pond outflow. By evaluating the difference between the performance and control periods, an incremental TN removal rate for the FWIs was calculated to be 4.2 kg N/m2 FWI per year.

Empirical Assessment of the Impact of Power Sector Reforms in Africa: A Study of the Generation, Transmission and Distribution Sectors

2008 ◽  
Author(s):  
William Kwasi Gboney ◽  
John Cubbin ◽  
Xeni Dassiou
Keyword(s):  
Private Sector ◽  
Regulatory Agency ◽  
Distribution System ◽  
Transmission System ◽  
Power Sector ◽  
African Countries ◽  
Private Sector Participation ◽  
The Impact ◽  
Transmission And Distribution ◽  
Loss Level

This paper is based on a research study which was carried out, to empirically assess the impact of power sector reforms, comprising privatization, competition and regulatory reforms in 29 African countries, for the period 1988–2005. The list of countries in the research sample is shown in Appendix 1. The main findings for the generation sector is that, in Africa, though energy sector regulation backed by sector law can bring about favorable outcomes, better results are likely to be achieved if the regulatory agency has been in existence for at least 3 years, and it co-exists with either competition ‘for’ the market or private sector participation. On private sector participation, the presence of Independent Power Producers, management contracts and private shareholding in generation assets, can enhance generation sector performance. The results on the transmission system seem to indicate that though the establishment of a regulatory agency can reduce transmission system loss level, this outcome is likely to be achieved if the regulatory agency has been existence for at least 3 years. On distribution system loss, it emerged that the sole existence of a regulatory agency may not be enough to influence a downward trend in distribution system loss level, unless the market, permits the co-existence of competition ‘for’ the market, with a regulatory agency.

A Review of Static Synchronous Compensators (STATCOM)

2012 ◽  
Vol 268-270 ◽  
pp. 1389-1392 ◽  
Author(s):  
You Jie Ma ◽  
Yi Li ◽  
Xue Song Zhou
Keyword(s):  
Intelligent Control ◽  
Distribution System ◽  
Reactive Power ◽  
Control Strategies ◽  
Control Algorithms ◽  
Static Synchronous Compensator ◽  
Converter Topologies ◽  
And Control ◽  
Transmission And Distribution ◽  
Fast Acting

This paper reviews the development of static synchronous compensator (STATCOM), and analylizes the structure of its main circuit, its working principles and control strategies. At last, this paper comes to a conclusion of technical characteristics of STATCOM and outlook of its development trends. Fast acting STATCOM, a representative of FACTS family, is a promising technology which is extensively used as state-of-the-art dynamic shunt compensator for reactive power control in transmission and distribution system. STATCOM controller employs various solid-state converter topologies, magnetics configurations, control algorithms, and switching techniques and so on. The development of STATCOM controller has been well reported in literature with its versatile application in power system. Thus deep investigation of STATCOM from the perspective of its intelligent control and the configuration of STATCOM’s main circuit is valuable.

scholarly journals Enhancing transmission and distribution system coordination and control in GB using power services from DERs

2019 ◽  
Vol 2019 (18) ◽  
pp. 4911-4915
Author(s):  
Inmaculada Martínez Sanz ◽  
Biljana Stojkovska ◽  
Angela Wilks ◽  
Jonathan Horne ◽  
Ali R. Ahmadi ◽  
...  
Keyword(s):  
Distribution System ◽  
And Control ◽  
Transmission And Distribution ◽  
Coordination And Control

India’s power firms will struggle to ease their debts

2020 ◽  
Keyword(s):  
Distribution System ◽  
Central Government ◽  
Electricity Distribution ◽  
Power Sector ◽  
Content Type ◽  
Revenue Collection ◽  
System Improvement ◽  
The Government ◽  
Transmission And Distribution ◽  
Financial Losses

Subject Problem of endemic debt in India's power sector. Significance The government plans to impose a new statutory instrument to staunch fast-growing financial losses in the power sector. The Atal Distribution System Improvement Yojana (ADITYA) would force electricity distribution companies (DISCOMS) to raise their revenue collection to economic levels. Impacts As DISCOMS struggle to fund a 24-hour electricity supply, most consumers will continue to experience regular power cuts. Tightening regulation from the central bank on bad loans will expose the extent of power sector indebtedness. The central government will step up investment in electricity transmission and distribution infrastructure.

scholarly journals MTCA.4 - modular measurement and control system with sub-nanosecond time synchronization and support for RF applications

2016 ◽  
Vol 62 (3) ◽  
pp. 289-292
Author(s):  
Grzegorz Kasprowicz
Keyword(s):  
Control Systems ◽  
Distribution System ◽  
Time Synchronization ◽  
Particle Accelerators ◽  
Real Time Control ◽  
Time Control ◽  
Rf Applications ◽  
Distributed Measurement Systems ◽  
And Control ◽  
Measurement And Control

Abstract The Micro TCA platform [1] is rapidly developing modular technology for measurement and control systems. There are available versions for laboratories, military and aviation. The newest release of the standard (MTCA.4) supports high frequency RF applications like particle accelerators, radio, telecom and radar. The PERG group together with partners from Europe and Poland takes active part in development process, i.e. implementation of sub-ns [2] synchronization, event and RF distribution system over fibre networks. It enhances significantly capabilities of MTCA platform in distributed measurement systems (i.e. passive radars) and enables fully deterministic operation of hard real time control systems.

Sign in / Sign up

Export Citation Format

Share Document