Wind power

Wind turbine steady state: P-Q envelope, reactive headroom and the simplified LVRT/ride-through check at the point of connection.

Step 1 of 3Wind power

Pick a scheme first — then this column can calculate

This column runs the real engine on your project scheme, and there is none yet — that is why no calculation buttons are shown here (they are not broken). Start with any of the ways below; the fastest is the built-in example (one click, real parameters).

Two ways in — pick either one

The studies in this column normally run on a whole scheme. If you only need one calculator-type function, you do not have to build a scheme.

① Load a real example scheme (fastest)

10 kV incoming (200 MVA short-circuit level) → 1250 kVA transformer (Dyn11) → LV main switchboard → busbar → 5 feeders plus a fire/emergency ATS branch. 1000 kW calculated load, cosφ 0.85, power-factor target 0.95.

Load the real example scheme and start calculating →

Or pick a ready-made scheme in the scheme library →

The scheme and its parameters go straight into your browser; replace the data with your own at any time.

② Do not load a scheme — just type the numbers (calculator mode)

Calculator mode computes the few outputs that only depend on parameters you type in yourself. Anything that genuinely needs the whole system (full-network load flow, coupling with other devices) is shown as “needs a scheme” and no number is given.

Nothing is pre-filled and nothing is invented: leave a required field empty and the result area says “unavailable”.

③ Or build your own scheme

In the studio, place devices, wire them and pick models — that becomes your project scheme (drawings / BOM / report can be exported).

Open the studio →

Need a hand?

Use the chat bubble bottom-right, or Contact us — we will set the example to your site parameters.

Note: every number comes from the engine. With no scheme, nothing is invented here.

New-energy topics: what to specify, how it is checked, what usually goes wrong

One card per domain — PV, wind, storage, micro-hydro and wind–solar–storage hybrids. Each card names the audience, the parameters that decide the selection, the calculation basis, the common pitfalls, and the page of the simulator that carries the numbers. Values the engine does not return yet are labelled "to be wired" and are never estimated here.

Audience:
buyers / owners
design institutes / electrical engineers

Wind power

to be wired

Audience

Buyers and owners; design engineers checking the turbine interface and the collector system.

Selection parameters

Turbine Sn / P at the terminals; the reactive capability envelope (capacitive and inductive); box-type transformer rating and impedance against ambient derating; collector-cable loading.

Basis and assumptions

IEC 61400-21-1:2019 and IEC 61400-27-1:2020 for capability and ride-through, with the GB/T 19964 LVRT check at the point of connection.

Common pitfalls

Reading the reactive capability as one fixed number instead of an envelope that moves with active power; sizing the box transformer to the turbine rating while ignoring the ambient-temperature derating.

Where the numbers come from

The P–Q capability envelope and the simplified LVRT check run on /wind; wind plus electrolysis is dispatched on /wind-hydrogen; hourly energy flows run on /timeseries.

To be wired

The wind speed–power curve, annual energy production and capacity factor are not modelled by the engine and are deliberately omitted rather than estimated; the wind-farm box-transformer calculator has no engine study yet — both items are marked "to be wired" on the page.

wind-farm-box-transformer-calculator

Every figure the simulator shows is returned by the calculation engine on that page; this guide is not a substitute for it. Items marked "to be wired" have no engine source yet and are shown as such instead of being estimated.