FA-93034 / EV charging session scheduling / Member archive

PV surplus following with hysteresis: power reported at transition sample · case 04

The power profile lags the charging state by one minute.

Member previewVariant 4 · 3 implementations · 7 checks per implementation

Case contract

samples are per-minute PV surplus watts. Charging starts on the sample completing start_delay consecutive samples >= start_w, and stops on the sample completing stop_delay consecutive samples < stop_w; counters reset on each transition and on any interrupting sample. While charging the power is the surplus clamped to [1380, 3680] W, else 0. Return [powers, number of starts].

Why this case matters

Depot, workplace and public EV chargers schedule sessions against prices, circuit limits and departure deadlines; a wrong decision silently strands a driver or overloads a feeder.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
boundary: surplus exactly at start threshold	`[[0, 0, 2000, 1380], 1]`	`[[0, 2000, 2000, 0], 1]`	Failed

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