474 research outputs found
Stubhub\u27s Tug at the Municipal Purse String: Why the Home-Rule Taxing Powers Enumerated in the Illinois Constitution Must Remain Broad and Strong, 48 J. Marshall L. Rev. 37 (2014)
The issues facing Illinois cities are equally, if not more, important today as in 1970 and will require local leaders to be able to use all governance tools at their disposal. The ability of a municipality to raise revenue is arguably one of the most important expressly granted by home rule. Accordingly, the Stubhub case should be viewed with caution going forward, as it raises the possibility of potentially serious challenges to municipal home rule power in the future. This article, then, will do several things. First, it will give the reader a concise definition and history of the constitutional home rule powers in Illinois. Second, it will discuss the Stubhub case in more detail. Finally, the article will reflect upon the plight of Detroit, Michigan, a home rule municipality which suffered financially after a constitutional amendment in the 1970s severely limited its ability to tax or incur debt
ANALYSIS OF A VARIABLE SPEED DOUBLE-FED INDUCTION GENERATOR WIND TURBINE DURING NETWORK VOLTAGE UNBALANCE CONDITIONS.
The behaviour of Double-Fed Induction Generators to supply network voltage unbalance is investigated. The paper shows the effects that voltage unbalance can have on a DFIG, using Matlab/Simulink. The results from simulations show that voltage unbalance affects both the induction generator and the rotor converter, due to the high unbalanced currents generated. The ability to modify the control strategy of a DFIG to compensate for voltage unbalance is outlined and simulations show the improvements to the performance of the DFIG
PERFORMANCE OF A VARIABLE SPEED DOUBLE-FED INDUCTION GENERATOR WIND TURBINE DURING NETWORK VOLTAGE UNBALANCE CONDITIONS
The issues of the negative performance of DFIG’s due to supply network voltage unbalance are outlined in this paper. The paper shows the effects that voltage unbalance can have on a DFIG, using the power simulation program DigSilent. The results from simulations show that voltage unbalance affects the both the induction generator and the rotor converter, due to the high unbalanced currents generated. The ability to modify the control strategy of a DFIG to compensate for voltage unbalance is outlined and a proposal to build a test-rig suitable to implement such a system is suggested
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