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기존 PI 제어기

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Kp
Kp
Ki
Ki
Σ
Σ
$${i_d}*$$
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Σ
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$${i_d}$$
$${i_...
$$abc-to-dq$$
$${v_...
$${v_...
$${v_a...
$${v_a...
$${v_a...
$$-\omeg...
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$${ v...
$$E$$
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Kp
Kp
Ki
Ki
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$${i_q}$$
$${i_...
$$\omega...
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$${ v...
$${i_q}*$$
$$abc-to-dq$$
$${i_...
$${i_...
$${i_a...
$${i_a...
$${i_a...
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그림 1 기존 PI 제어기에서의 컨트롤 다이어그램

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voltage relationships in the stationary a-b-c reference frame are

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In synchronous d-q reference frame as

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For fast current dynamics, current controller are designed as

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where are

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개선 제어기

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Kp
Kp
Σ
Σ
$${i_d}*$$
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-
-
Σ
Σ
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$${i_d}$$
$${i_...
$$abc-to-dq$$
$${v_...
$${v_...
$${v_a...
$${v_a...
$${v_a...
$$-\omeg...
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$${ v...
Kp
Kp
Σ
Σ
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-
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Σ
Σ
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$${i_q}$$
$${i_...
$$\omega...
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$${ v...
$${i_q}*$$
$$abc-to-dq$$
$${i_...
$${i_...
$${i_a...
$${i_a...
$${i_a...
$$K_i \i...
X
X
X
X
$${m_a}$$
$${...
$${...
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그림 2 개선 제어론에서의 컨트롤 다이어그램

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In Proposed current control scheme are designed as:

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Where is

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In Steady state, error is expected to be zero:
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+uml diagram