Hydro-Québec

About: Hydro-Québec is a government organization based out in Montreal, Quebec, Canada. It is known for research contribution in the topics: Electric power system & Dielectric. The organization has 2596 authors who have published 4433 publications receiving 100878 citations.

Electric vehicle braking system

Abstract: A braking system for electric vehicles that gives a driver the feel of a conventional hydraulic braking system while maximizing the recuperation of electrical power is described herein. A single brake pedal is used to control both electric and hydraulic braking assemblies. A feedback force generator is provided to give the driver the impression that a completely hydraulic braking system is used. Therefore, the driver is not inclined to further depress the pedal, thereby preventing the premature activation of the hydraulic braking system.

Hydro power flexibility for power systems with variable renewable energy sources: an IEA Task 25 collaboration

Abstract: Hydro power is one of the most flexible sources of electricity production. Power systems with considerable amounts of flexible hydro power potentially offer easier integration of variable generatio ...

Dynamic interactions between HVDC systems connected to AC buses in close proximity

Abstract: As AC/DC systems become further integrated, multiple-infeed converter (MIC) systems can be expected to become more common. Different categories of MIC systems are defined, and: (1) the impact of the AC system strength; and (2) the coordination of the reactive power demand of the converters on the dynamic performance of such systems are discussed. Analog or physical simulator study results are presented which provide some insight into the dynamic behavior of one category of such systems. In relation to MIC systems which have a common AC bus or are connected to AC buses which are electrically close to each other, the following conclusions can be drawn: (1) careful evaluation of interactions between converters is necessary since even a remote fault affecting one DC system may affect other DC systems within the MIC system; (2) coordination of reactive powers at the common AC bus is necessary to avoid unnecessary mode shifts; and (3) coordination of the operating and control characteristics (i.e. VDCL characteristics) of converters within a MIC system is essential for satisfactory dynamic behavior of the total system. >