Exploring the Potentials of an All DC (ADC) Bulk Power System

提出了在控制中心几乎即时地计算出每个构件所需的稳态条件，然后从每个构件的现有状态中减去它。这种差异就是每个构件内部的多余能量或瞬态能量。然后在每个块中利用串联和分流控制来消除每条线的受控端电压和电流的差异。如果实现了这一点，则该块的瞬态能量被排进或排出可用于此目的的电容器。如果实现了这一点，这将意味着期望的系统状态几乎在任何时候都以分布式的方式瞬间实现，没有瞬态。如果与期望状态的变化率相比，控制过程i实际上是瞬时的，则可以接受地近似于这种理想情况。请注意，这里提出的问题不是如何利用新发展的技术及其工具来改进现有的实践，而是相反：如何利用现有的和发展中的技术以最有利的方式解决现有的问题。这就提出了如何找到过渡的问题。考虑到目前丰富的电力电子、计算和通信设备和设施，如何使整个电力系统具有最佳的可靠性、安全性、效率和其他特征的问题。当然，从实际角度考虑，也可以使用现有的设施，如输电线路、发电机、变压器、电容器组等，有时还可以发挥新的作用。创新将涉及系统的新结构，例如全直流大容量电力系统和控制重组系统的新方法。

0114937ZaborszkyIt is proposed to compute in the Control Center, virtually instantly, the desired steady state condition of each building block and then subtract it from the existing state in each building block. This difference is the excess or transient energy within each building block. Then in each block utilize the series and shunt controls to eliminate this difference in voltage and current at the controlled end of each line. If this is accomplished then the transient energy of the block is drained into or out of the capacitors available for this purpose. If accomplished this would mean that the desired system state is realized virtually instantaneously at all times without transients, in a distributed manner. This idealized situation may be acceptably approximated provided the control process i is virtually instantaneous compared to the rate of variation of the desired state.Observe that the question asked here is not how to utilize newly developing technology and its tools to improve existing practice, but the converse: how to utilize existing and developing technology to solve the existing problems in the most favorable way. This then raises the question of how a transition can be found.Given the present riches of power electronics, computing and communication equipment and facilities, the question of how the total power system could be constructed for the best reliability, security, efficiency and other features. Of course, to be practical, it would be expected that current facilities such as transmission lines, generators, transformers capacitor bank etc. would be used, sometimes in novel roles. The innovation would involve a new structuring of the system e.g. an all DC bulk power system and a novel approach to controlling the restructured system.