I`m not sure exactly what you are referring to, communism? You should check in on anarcho-syndicalism, read up on marx, the zapata, the spanish revolution, kropotkin, and emma goldman(etc!). All the authors also have articles they`ve written on how a "soviet" works in real life. In short, yes, its possible, it has happened before.
soviets were set up in russia before lenin took over after the october revolution, so the idea of a soviet is pre-communist. Infact most people in the petrograd soviet, which helped to run russia, were kadets.
My initial thoughts regarding workers' cooperatives beyond mere fancy would require ...
1. The overall vision of the society in question is optimistic, open to experiments and questioning the previously respected top-down approach to both public and private issues
2. The previously infallible elites have discredited themselves to such an extent that the commoners no longer need to worry about the potential consequences of offending the elites
3. Minimal top-to-down political-economic 'loading the dice'
4. One's own measure of self-worth and self-esteem and respect-from-others are no longer heavily dependent on one's own financial statements (have we observed the fact that these sort of thingies are prone to dis-information over and over?!?)
5. One's own measure of self-worth and self-esteem and respect-from-others are no longer heavily dependent on past credentials (Alfred Wegener vs. mainstream geologist during the early 20th century over the 'tectonic plates'; Ancel Keys & the mainstream medical authority since the late 1970's vs, Robert Atkins & Mary Enig & others over the dangers of saturated fats)